Service Manual

TDS3000 Series
Digital Phosphor Oscilloscopes
071-0382-01

This document supports firmware version 2.00

and above.

Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
Copyright © Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.

Printed in the U.S.A.

Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

 WARRANTY

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years
from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid.
Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time or
difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
Table of Contents

General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Service Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii
Specifications
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

Operating Information
Transporting the Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Connecting Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
Installing an Application Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Installing a Communication Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–9
Front-Panel Menus and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Front-Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Rear-Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–19
Probe Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
Self Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–21

Theory of Operation
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Battery Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Front-Panel Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3

Performance Verification
Test Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2
Performance Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4

Adjustment Procedures
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1
Overview of the Adjustment Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2
Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3
Factory Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–6

TDS3000 Series Service Manual i

Table of Contents

Maintenance
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Preventing ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–1
Inspection and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–2
Removal and Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–35
Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–36
Unpacking and Repacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–43

Options
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1

Electrical Parts List

Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8–1

Diagrams
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9–1

Mechanical Parts List

Parts Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–1
Using the Replaceable Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–2

ii TDS3000 Series Service Manual

 Table of Contents

List of Figures

Figure 3–1: TDS3000 series block diagram . . . . . . . . . . . . . . . . . . . . . 3–1

Figure 6–1: Pulling the hub pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–8

Figure 6–2: Releasing the hub assembly . . . . . . . . . . . . . . . . . . . . . . . . 6–9
Figure 6–3: Reinstalling a hub cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–11
Figure 6–4: Communication module guide . . . . . . . . . . . . . . . . . . . . . . 6–12
Figure 6–5: Flex cable to the disk drive . . . . . . . . . . . . . . . . . . . . . . . . 6–13
Figure 6–6: Removing the bezel from a new disk drive . . . . . . . . . . . . 6–14
Figure 6–7: Cables to the main board . . . . . . . . . . . . . . . . . . . . . . . . . . 6–15
Figure 6–8: Installing the fan, line filter, and line power cable . . . . . . 6–17
Figure 6–9: Installing the line filter and line power cable . . . . . . . . . . 6–18
Figure 6–10: Disk drive and display module cable connectors . . . . . . 6–20
Figure 6–11: Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–21
Figure 6–12: Front chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–23
Figure 6–13: Display module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–24
Figure 6–14: Front-panel cable routing . . . . . . . . . . . . . . . . . . . . . . . . 6–25
Figure 6–15: Disconnect back light cables . . . . . . . . . . . . . . . . . . . . . . 6–26
Figure 6–16: Remove inverter board . . . . . . . . . . . . . . . . . . . . . . . . . . . 6–27
Figure 6–17: Remove display from display chassis . . . . . . . . . . . . . . . 6–28
Figure 6–18: Remove back light tube . . . . . . . . . . . . . . . . . . . . . . . . . . 6–29
Figure 6–19: Installing display glass shield . . . . . . . . . . . . . . . . . . . . . . 6–30
Figure 6–20: Remove front-panel knobs . . . . . . . . . . . . . . . . . . . . . . . . 6–31
Figure 6–21: Remove front-panel board . . . . . . . . . . . . . . . . . . . . . . . . 6–32
Figure 6–22: Remove front-panel keypads . . . . . . . . . . . . . . . . . . . . . . 6–33
Figure 6–23: Checking front-panel lock nuts . . . . . . . . . . . . . . . . . . . . 6–34
Figure 6–24: Primary troubleshooting procedure . . . . . . . . . . . . . . . . 6–36
Figure 6–25: Power-on troubleshooting procedure . . . . . . . . . . . . . . . 6–37
Figure 6–26: AC power supply troubleshooting procedure . . . . . . . . . 6–38
Figure 6–27: Battery module troubleshooting procedure . . . . . . . . . . 6–39
Figure 6–28: Front panel/display backlight power troubleshooting . 6–40
Figure 6–29: Display/Main module supply voltage troubleshooting . 6–41
Figure 6–30: No display, power supply voltages OK . . . . . . . . . . . . . . 6–41
Figure 6–31: Module isolation troubleshooting procedure . . . . . . . . . 6–42

TDS3000 Series Service Manual iii

Table of Contents

Figure 10–1: Exploded view, front case half . . . . . . . . . . . . . . . . . . . . . 10–4

Figure 10–2: Exploded view, LCD display . . . . . . . . . . . . . . . . . . . . . . 10–6
Figure 10–3: Exploded view, main board and disk drive . . . . . . . . . . 10–8
Figure 10–4: Exploded view, circuit board assembly and fan . . . . . . . 10–10
Figure 10–5: Exploded view, rear case half . . . . . . . . . . . . . . . . . . . . . . 10–12

iv TDS3000 Series Service Manual

 Table of Contents

List of Tables

Table 1–1: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1

Table 6–1: Internal inspection check list . . . . . . . . . . . . . . . . . . . . . . . 6–3

Table 6–2: Removal and installation procedures . . . . . . . . . . . . . . . . . 6–6

Table 7–1: TDS3000 Series options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7–1

TDS3000 Series Service Manual v

Table of Contents

vi TDS3000 Series Service Manual

General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.

To Avoid Fire or Use Proper Power Cord. Use only the power cord specified for this product and
Personal Injury certified for the country of use.
Connect and Disconnect Properly. Connect the probe output to the measurement
instrument before connecting the probe to the circuit under test. Disconnect the
probe input and the probe ground from the circuit under test before disconnecting
the probe from the measurement instrument.
Ground the Product. When operating from AC power, this product is grounded
through the grounding conductor of the power cord. To avoid electric shock, the
grounding conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure that the
product is properly grounded.
When operating with battery power, this product must still be grounded. To
prevent electric shock, always connect a grounding wire between the ground
terminal on the rear panel and earth ground.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Connect the ground lead of the probe to earth ground only.
Replace Batteries Properly. Replace batteries only with the proper type and rating
specified.
Recharge Batteries Properly. Recharge batteries for the recommended charge
cycle only.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.

TDS3000 Series Service Manual vii

General Safety Summary

Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.

Symbols and Terms Terms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

Terms on the Product. These terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:

CAUTION WARNING Protective Ground Battery

Refer to Manual High Voltage (Earth) Terminal Information

viii TDS3000 Series Service Manual

 General Safety Summary

Preventing Electrostatic
Damage
CAUTION. Electrostatic discharge (ESD) can damage components in the
oscilloscope and its accessories. To prevent ESD, observe these precautions
when directed to do so.

Use a Ground Strap. Wear a grounded antistatic wrist strap to discharge the static
voltage from your body while installing or removing sensitive components.
Use a Safe Work Area. Do not use any devices capable of generating or holding a
static charge in the work area where you install or remove sensitive components.
Avoid handling sensitive components in areas that have a floor or bench top
surface capable of generating a static charge.
Handle Components Carefully. Do not slide sensitive components over any
surface. Do not touch exposed connector pins. Handle sensitive components as
little as possible.
Transport and Store Carefully. Transport and store sensitive components in a
static-protected bag or container.

Battery Recycling This product contains a Nickel Cadmium (NiCd) battery, which must be recycled
or disposed of properly. For the location of a local battery recycler in the U.S. or
Canada, please contact:
RBRC (800) BATTERY
Rechargeable Battery Recycling Corp. (800) 227-7379
P.O. Box 141870 www.rbrc.com
Gainesville, Florida 32614

TDS3000 Series Service Manual ix

General Safety Summary

x TDS3000 Series Service Manual

Service Safety Summary

Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.

TDS3000 Series Service Manual xi

Service Safety Summary

xii TDS3000 Series Service Manual

Preface

This is the Service Manual for the following TDS3000 Series Digital Phosphor
Oscilloscopes:
H TDS3012
H TDS3014
H TDS3032
H TDS3034
H TDS3052
H TDS3054
This manual provides information to troubleshoot and repair the instrument to
the module level.

Related Manuals
Additional documentation for the instrument is contained in the related manuals
listed below.

Programmer
Language User manual Reference manual
English 071-0274-XX 071-0275-XX 071-0381-XX
French 071-0277-XX 071-0278-XX
German 071-0279-XX 071-0280-XX
Italian 071-0281-XX 071-0282-XX
Spanish 071-0283-XX 071-0284-XX
Portuguese 071-0285-XX 071-0286-XX
Korean 071-0287-XX 071-0288-XX
Simplified Chinese 071-0289-XX 071-0290-XX
Traditional Chinese 071-0291-XX 071-0292-XX
Japanese 071-0293-XX 071-0294-XX
Russian 071-0295-XX 071-0296-XX

TDS3000 Series Service Manual xiii

Preface

Service Programs
Tektronix offers calibration service and a program to extend repair coverage
beyond the warranty period. These programs are cost-effective ways to maintain
genuine Tektronix service for your instrument. Ask your Tektronix distributor for
details.

Contacting Tektronix

Product For application-oriented questions about a Tektronix measure-

Support ment product, call toll free in North America:
1-800-TEK-WIDE (1-800-835-9433 ext. 2400)
6:00 a.m. – 5:00 p.m. Pacific time
Or contact us by e-mail:
tm_app_supp@tektronix.com
For product support outside of North America, contact your
local Tektronix distributor or sales office.
Service Contact your local Tektronix distributor or sales office. Or visit
Support our web site for a listing of worldwide service locations.
http://www.tektronix.com
For other In North America:
information 1-800-TEK-WIDE (1-800-835-9433)
An operator will direct your call.
To write us Tektronix, Inc.
P.O. Box 1000
Wilsonville, OR 97070-1000

xiv TDS3000 Series Service Manual

Specifications

This appendix contains specifications for the TDS3000 series oscilloscopes. All
specifications are guaranteed unless noted as “typical.” Typical specifications are
provided for your convenience but are not guaranteed. Specifications that are
marked with the n symbol are checked in Performance Verification.
All specifications apply to all TDS3000 models unless noted otherwise. To meet
specifications, two conditions must first be met:
H The oscilloscope must have been operating continuously for ten minutes
within the operating temperature range specified.
H You must perform the Compensate Signal Path operation described on page
2–21. If the operating temperature changes by more than 10° C, you must
perform the Compensate Signal Path operation again.

Table 1–1: Specifications

Acquisition
Acquisition modes Sample (Normal), Peak detect, Envelope, and Average
Single Sequence Acquisition mode Acquisition stops after
Sample, Peak Detect One acquisition, all channels
simultaneously
Average, Envelope N acquisitions, all channels
simultaneously, N is settable from
2 to 256 (or ∞ for Envelope)

TDS3000 Series Service Manual 1–1

Specifications

Table 1–1: Specifications (cont.)

Inputs
Input coupling DC, AC, or GND
Channel input remains terminated when using GND coupling.
Input impedance, 1 MW ±1% in parallel with 13 pF ±2 pF, TekProbe compatible
DC coupled
50 W ±1%; VSWR ≤ 1.5:1 from DC to 500 MHz, typical
Maximum voltage at Overvoltage category Maximum voltage
input
p BNC
NC (11 MW)
W
CAT I Environment (refer to 150 VRMS (400 Vpk)
page 1–11)
CAT II Environment (refer to 100 VRMS (400 Vpk)
page 1–11)
For steady-state sinusoidal waveforms, derate at 20 dB/decade above
200 kHz to 13 Vpk at 3 MHz and above.
Maximum voltage at 5 VRMS with peaks ≤ ±30 V
input BNC (50 W)
Maximum floating 0 V from chassis (BNC) ground to earth ground, or
voltage
30 VRMS (42 Vpk) only under these conditions: no signal voltages
>30 VRMS (>42 Vpk), all common leads connected to the same voltage,
no grounded peripherals attached
Channel-to-channel Measured on one channel, with test signal applied to another channel,
crosstalk, typical and with the same scale and coupling settings on each channel
Frequency TDS3012 TDS3032 TDS3052
range TDS3014 TDS3034 TDS3054
≤ 100 MHz ≥ 100:1 ≥ 100:1 ≥ 100:1
≤ 300 MHz — ≥ 50:1 ≥ 50:1
≤ 500 MHz — — ≥ 30:1
Differential delay, 100 ps between any two channels with the same scale and coupling
typical settings

1–2 TDS3000 Series Service Manual

 Specifications

Table 1–1: Specifications (cont.)

Vertical
Number of channels TDS3012, TDS3032, TDS3052 TDS3014, TDS3034, TDS3054
2 plus external trigger input 4
Digitizers 9-bit resolution, separate digitizers for each channel sample
simultaneously
SCALE Range 1 MW 50 W
(at BNC)
NC
1 mV/div to 10 V/div 1mV/div to 1 V/div
Fine SCALE Adjustable with ≥ 1% resolution
Polarity Normal and Invert
Position range ±5 divisions
n Analog bandwidth, Bandwidth limit set to Full, operating ambient ≤30 °C, derate 1%/°C
50 W above 30 °C
(also p at 1 MW
s typical
Scale range TDS3012 TDS3032 TDS3052
with standard probe)
TDS3014 TDS3034 TDS3054
5 mV/div to 100 MHz 300 MHz 500 MHz
1 V/div
2 mV/div to 100 MHz 250 MHz 300 MHz
4.98 mV/div
1 mV/div to 90 MHz 150 MHz 175 MHz
1.99 mV/div
Calculated rise — 3.5 ns 1.2 ns 0.7 ns
time, typical
Analog bandwidth Selectable between 20 MHz, 150 MHz (not available on TDS3012 or
limit, typical TDS3014), or Full
Lower frequency limit, 7 Hz for 1 MW, reduced by a factor of ten when using a 10X passive
AC coupled, typical probe; 140 kHz for 50 W

TDS3000 Series Service Manual 1–3

Specifications

Table 1–1: Specifications (cont.)

Vertical
Peak detect or Minimum width of pulse with amplitude of ≥2 div to capture 50% or
Envelope pulse greater amplitude
resp se typical
response, p
Sample rates ≤125 MS/s Sample rates ≥250 MS/s
1 ns 1/sample rate
DC gain accuracy ± 2%, derated at 0.07%/°C for temperatures below +18° C and above
+28° C, in Sample or Average acquisition mode
DC measurement Measurement type DC Accuracy (in volts)
accuracy
Sample acquisition Absolute measurement of any 
± [0.021 | reading – (offset –
mode, typical waveform point, and High, Low, position) | + offset accuracy +
Max, and Min measurements. 0.15 div + 0.6 mV]
Delta voltage between any two 
± [0.021 | reading | + 0.15 div
points on a waveform, and all + 1.2 mV]
other automatic measurements.
n Average Absolute measurement of any 
± [0.021 | reading – (offset –
acquisition mode waveform point, and High, Low, position) | + offset accuracy
(≥16 averages) Max, and Min measurements. + 0.1 div]
Delta voltage between two points ± [0.021  | reading | + 0.05 div]
on a waveform, and all other
automatic measurements.
Offset range Scale range Offset range
1 mV/div to 9.95 mV/div ±100 mV
10 mV/div to 99.5 mV/div ±1 V
100 mV/div to 995 mV/div ±10 V
1V/div to 10 V/div ±100 V
Offset accuracy ± (0.005  | offset – position | + 0.1 div)
1 0.02 term (gain component) derated at 0.00025/°C above 30° C

1–4 TDS3000 Series Service Manual

 Specifications

Table 1–1: Specifications (cont.)

Horizontal
Acquisition (horizon- Normal Fast trigger
tal) resolution
Record length 10,000 points 500 points
Acquisition rate, Up to 450 waveforms/s Up to 3,000 waveforms/s
maximum
Sample rate range Acquisition res- TDS3012 TDS3032 TDS3052
olution TDS3014 TDS3034 TDS3054
Normal 100 S/s to 100 S/s to 100 S/s to
1 GS/s 2.5 GS/s 5 GS/s
Fast trigger 5 S/s to 5 S/s to 5 S/s to
1.25 GS/s 2.5 GS/s 5 GS/s
Seconds/division — 4 ns/div to 2 ns/div to 1 ns/div to
range 10 s/div 10 s/div 10 s/div
n Sample rate and ±200 ppm over any ≥1 ms time interval
delay time accuracy
Trigger
External trigger input, 1 MW in parallel with 17 pF, TekProbe compatible
typical (TDS3012, TDS3032, TDS3052 only)
External trigger Overvoltage category Maximum voltage
m m m voltagee
maximum
CAT I Environment (refer to 150 VRMS (400 Vpk)
page 1–11)
CAT II Environment (refer to 100 VRMS (400 Vpk)
page 1–11)
For steady-state sinusoidal waveforms, derate at 20 dB/decade above
200 kHz to 13 Vpk at 3 MHz and above.
External trigger maxi- 0 V from chassis (BNC) ground to earth ground
mum floating voltage
30 VRMS (42 Vpk) only under these conditions: no signal voltages
>30 VRMS (>42 Vpk), all common leads connected to the same voltage,
no grounded peripherals attached
n Edge trigger Source Sensitivity
se s
sensitivity
Any channel, DC coupled 0.35 div from DC to 50 MHz,
increasing to 1 div at oscilloscope
bandwidth
Edge trigger Source Sensitivity
sensitivity,
se s typical
p
External trigger 100 mV from DC to 50 MHz,
increasing to 500 mV at 300 MHz
External/10 trigger 500 mV from DC to 50 MHz,
increasing to 3 V at 300 MHz

TDS3000 Series Service Manual 1–5

Specifications

Table 1–1: Specifications (cont.)

Trigger
Edge trigger Any channel, NOISE REJ coupled 3.5 times the DC-coupled limits
se s
sensitivity, p
typical
Any channel, HF REJ coupled 1.5 times the DC-coupled limit
from DC to 30 kHz, attenuates
signals above 30 kHz
Any channel, LF REJ coupled 1.5 times the DC-coupled limits
for frequencies above 80 kHz,
attenuates signals below 80 kHz
Trigger level range Source Sensitivity
Any channel ±8 divisions from center of
screen, ±8 divisions from 0 V if LF
REJ trigger coupled
External external ±800 mV
External/10 trigger ±8 V
Line Fixed at the midlevel of the AC
line
SET LEVEL TO 50%, Operates with input signals ≥45 Hz
typical
Trigger level accu- Source Sensitivity
r
racy, p
typical
Any channel ±0.2 divisions
External trigger ±20 mV
External/10 trigger ±200 mV
Line N/A
Trigger holdoff range 250.8 ns to 10 s
Video trigger sensitiv- Triggers on negative sync of NTSC, PAL, or SECAM signal
ity, typical
p
Source Sensitivity
Any channel 0.6 to 2.5 divisions of video sync
tip
External trigger 150 mV to 625 mV of video sync
tip
External/10 trigger 1.5 V to 6.25 V of video sync tip
B Trigger Trigger After Time Trigger After B Events
Range 13.2 ns to 50 s 1 event to 9,999,999 events
Minimum time 5ns from the end of the time 5 ns between the A trigger event
between arm and period and the B trigger event and the first B trigger event
trigger, typical
Minimum Pulse — B event width, 2 ns
Width, typical
Maximum Fre- — B event frequency, 250 MHz
quency, typical

1–6 TDS3000 Series Service Manual

 Specifications

Table 1–1: Specifications (cont.)

Display
Display screen 6.5 in (165 mm) diagonal color liquid crystal
Display resolution 640 horizontal by 480 vertical pixels
Backlight intensity, 200 cd/m2
typical
Display color Up to 16 colors, fixed palette
External display filter Scratch-resistant tempered glass
I/O ports
Parallel printer port Centronics compatible, DB-25 female connector
GPIB interface Available as optional accessory TDS3GM
RS-232 interface Available as optional accessory TDS3GM or TDS3VM,
DB-9 male connector
VGA signal output Available as optional accessory TDS3VM, DB-15 female connector,
31.6 kHz sync rate, EIA RS-343A compliant
Probe compensator 5.0 V into ≥1 MW load,
output, typical frequency = 1 kHz
Miscellaneous
Nonvolatile memory Typical retention time ≥ 5 years for front-panel settings, unlimited for
saved waveforms and setups
Floppy disk 3.5 in, DOS format, 720 KB or 1.44 MB compatible
Internal clock Provides date/time stamp for stored data and the current time and date
to the front panel, if enabled. Year-2000 compliant.
Radiated immunity Per methods of EN50082-1 and EN61000-4-3, the increase in trace
noise is not to exceed four major divisions peak-to-peak. Ambient RF
fields may induce triggering when trigger threshold is offset less than
two major divisions from ground reference.

TDS3000 Series Service Manual 1–7

Specifications

Table 1–1: Specifications (cont.)

Power sources
AC line power Operates the oscilloscope and charges the optional internal battery
Source voltage 90 VRMS to 250 VRMS, continuous range (CAT II)
Source frequency 47 Hz to 440 Hz
Power consump- 75 W maximum
tion
Battery power Optional accessory TDS3BAT, rechargeable NiCad battery pack
Operating time, 2 hours, depending on operating conditions
typical
Battery charge 18 hours in the oscilloscope, 3 hours in the optional external charger
time, typical TDS3CHG
Line fuse Internal, not user replaceable
Environmental
Temperature Operating range (no disk installed): +5 °C to +50 °C
Nonoperating range (no disk installed): –20 °C to +60 °C
Typical operating range for floppy disks: +10 °C to +50 °C
Humidity Operating range (no disk installed): 20% to 80% RH below 32 °C,
derate upper limit to 21% RH at 50 °C
Nonoperating range (no disk installed): 5% to 90% RH below 41 °C,
derate upper limit to 30% RH at 60 °C
Typical operating range for floppy disks: 20% to 80% RH below 32 °C,
derate upper limit to 21% RH at 50 °C
Pollution Degree Pollution Degree 2: Typical home or office environment.

1–8 TDS3000 Series Service Manual

 Specifications

Table 1–1: Specifications (cont.)

Environmental
Altitude Operating limit: 3000 m
Nonoperating limit: 15,000 m
Random vibration Operating: 0.31 gRMS from 5 Hz to 500 Hz, 10 minutes on each axis
Nonoperating: 2.46 gRMS from 5 Hz to 500 Hz, 10 minutes on each
axis
Drop resistance, typi- Survives a 152 mm (6 in) drop onto concrete with only cosmetic
cal damage
Mechanical
Size Height: 176 mm (6.9 in), 229 mm (9.0 in) including handle
Width: 375 mm (14.75 in)
Depth: 149 mm (5.9 in)
Weight Oscilloscope only: 3.2 kg (7.0 lbs)
With accessories and carry case: 4.1 kg (9.0 lbs)
When packaged for domestic shipment: 5.5 kg (12.0 lbs)
Optional battery pack: 2 kg (4.5 lbs)

TDS3000 Series Service Manual 1–9

Specifications

Table 1–1: Specifications (cont.)

EMC certifications and compliances

EMC Compliance: Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
European Union Compliance was demonstrated to the following specifications as listed
in the Official Journal of the European Communities:
EN 55011 Class A Radiated and Conducted Emissions
EN 50082-1 Immunity
EMC Compliance: Meets the intent of Australian EMC Framework as demonstrated to the
Australia/New Zea- following specification:
land
AS/NZS 2064.1/2
EMC Compliance: This product was certified by the GOST ministry of Russia to be in
Russia compliance with all applicable EMC regulations.
FCC Compliance: Emissions comply with FCC Code of Federal Regulations 47, Part 15,
U.S.A. Subpart B, Class A Limits

1–10 TDS3000 Series Service Manual

 Specifications

Table 1–1: Specifications (cont.)

Safety certifications and compliances

EC Declaration of Compliance was demonstrated to the following specification as listed in
Conformity – Low the Official Journal of the European Communities:
Voltage Low Voltage Directive 73/23/EEC as ammended by 93/68/EEC
(TDS3000 Series EN 61010-1/A2:1995
and P3010) Safety requirements for electrical equipment for
measurement, control, and laboratory use
(P3010) EN 61010-2-031:1995
Particular requirements for hand-held probe assemblies
for electrical measurement and test equipment
(P6139A) HD401 S1
Safety requirements for electronic apparatus
Approvals
(TDS3000 Series UL3111-1 – Standard for electrical measuring and test equipment
and P3010) CAN/CSA C22.2 No. 1010.1 – Safety requirements for electrical
equipment for measurement, control and laboratory use
(P3010) EN 61010-2-031:1995 – Particular requirements for hand-held probe
assemblies for electrical measurement and test equipment
(P6139A) UL1244, Third Edition – Electronic measuring and test equipment
CAN/CSA C22.2 No. 231.1-M89 – Test probes
Installation Category Terminals on this product may have different installation category
Descriptions designations. The installation categories are:
CAT III Distribution-level mains (usually permanently
connected). Equipment at this level is typically in a
fixed industrial location
CAT II Local-level mains (wall sockets). Equipment at this
level includes appliances, portable tools, and similar
products. Equipment is usually cord-connected
CAT I Secondary (signal level) or battery operated circuits of
electronic equipment

TDS3000 Series Service Manual 1–11

Specifications

1–12 TDS3000 Series Service Manual

Operating Information

This chapter provides an overview of the following topics:

H Transporting the oscilloscope
H Connecting power and using the battery pack
H Installing an application module
H Installing a communication module
H Front-panel menus and controls
H Front- and rear-panel connectors
H Probe compensation
H Self calibration
For more detailed information about operating information, see the TDS3000
Series User Manual.
For information about unpacking and inspecting the instrument, see Unpacking
and Repacking Instructions on page 6–43 of this manual.

TDS3000 Series Service Manual 2–1

Operating Information

Transporting the Oscilloscope

When transporting the oscilloscope, wrap the cord around the handle as shown
below. Use the supplied cord retainer if the power plug does not have a
molded-in retainer. The oscilloscope front cover has a convenient place to store
the Reference Manual.

If you are not using a battery, use the accessory tray in the battery compartment
to store probes and other accessories.

CAUTION. To avoid damage to the disk drive, do not transport the oscilloscope
with a floppy disk in the disk drive.

2–2 TDS3000 Series Service Manual

 Operating Information

Connecting Power
To connect a power cord, do these steps:
1. Open the strain relief and slip it over the power cord.
2. Snap the strain relief into its hole in the rear panel of the oscilloscope.
3. Connect the power cord to the power input connector.
You can operate the oscilloscope from a grounded mains supply with line voltage
between 90 VAC and 250 VAC and frequency between 47 Hz and 440 Hz. The
oscilloscope is grounded through the power cord. The line fuse is internal and is
not user replaceable.

Using Battery Power You can operate the oscilloscope continuously for approximately two hours from
the rechargeable battery pack. A triangle icon in the display ( ) shows when the
battery is in use, a power-plug icon ( ) shows when line power is connected,
and a gauge icon ( ) shows the charge level in the battery. The oscilloscope
turns off automatically when the battery runs low; a low-battery message appears
in the display about ten minutes before the automatic shutdown.
NiCad batteries appear to lose capacity if not allowed to occasionally discharge
completely. Every few months, run your oscilloscope until it shuts down and
then recharge the battery completely to keep your battery pack at peak perfor-
mance.
Refer to the General Safety Summary for information about proper nickel-cad-
mium battery disposal.

TDS3000 Series Service Manual 2–3

Operating Information

Operating Safely with

Battery Power
WARNING. To avoid electric shock, always connect the rear-panel ground
terminal to earth ground when operating the instrument from battery power.

For safe operation, the oscilloscope chassis must remain at earth ground potential
even when operating from battery power. Without a connection between the
chassis and earth ground, you can receive a shock from exposed metal on the
chassis if you connect an input to a hazardous voltage (>30 VRMS, >42 Vpk).
Protection against this condition is provided when you attach the Tektronix-sup-
plied grounding wire from the terminal on the rear panel to earth ground. If you
use a different grounding wire, it must be at least 18 gauge.

When you start to use the battery pack, an on-screen message reminds you to
connect the grounding wire between the ground terminal on the rear panel and
earth ground.

2–4 TDS3000 Series Service Manual

 Operating Information

Installing and Removing To install the optional battery pack, do these steps:
the Battery
1. Open the battery compartment door on the rear panel and remove the
accessory tray.

Battery door
(Opened)

2. Slide the battery into the compartment and press it in from both sides until
you hear the latches click.
3. Press on both sides of the battery compartment door to snap it closed.
To remove the battery, do these steps:
1. Open the battery compartment door.
2. Lift the battery handles and pull the battery out of the oscilloscope.

TDS3000 Series Service Manual 2–5

Operating Information

Charging the Battery The battery charges automatically when the oscilloscope is connected to line
power. You can also charge the battery with the optional external charger
(TDS3CHG).

Configuration Typical charging time

Battery charging in oscilloscope with oscillo- 18 hours
scope turned on or off
Battery charging with TDS3CHG external 3 hours
charger

NOTE. Charge the battery before using it for the first time or after prolonged
storage.

2–6 TDS3000 Series Service Manual

 Operating Information

Installing an Application Module

CAUTION. To avoid damage to the oscilloscope or application module, observe

the ESD precautions described on page ix.

Optional application modules are available to extend the capability of your

oscilloscope. You can install up to four application modules at one time.
Application modules can go into the two slots with windows in the upper right
corner of the front panel. Two additional slots are located behind the two you can
see. To install an application module, do these steps:
1. Save any oscilloscope settings and/or reference waveforms you want to keep
to floppy disk before doing these steps.
2. Turn the oscilloscope power off.
3. Open the small door in the upper right corner of the front panel.
4. Slide the application module into any available slot with the module contacts
facing the circuit board. If it is necessary to make space for a new application
module, use a small flat-bladed screwdriver in the molded depression on the
end of a module to slide an installed module out of a slot.

NOTE. If you remove an application module, the features provided by the

application module become unavailable. You can reinstall the module to restore
the features.

5. Close the module door.

Application modules

Contacts

TDS3000 Series Service Manual 2–7

Operating Information

6. If the application module came with one or more floppy disks, insert the
firmware upgrade floppy disk into the disk drive. If there is more than one
floppy disk, insert firmware upgrade floppy disk number one into the disk
drive.
7. Power on the oscilloscope. The oscilloscope determines whether the
firmware update is necessary. If no firmware update is necessary, the
oscilloscope powers on with no messages. Go to step 9.
8. Push OK Load New Firmware to begin loading the firmware. During the
process, the oscilloscope may instruct you to insert a second floppy disk;
insert the second firmware disk at that time. When the firmware upgrade is
complete, the oscilloscope will restart automatically with the new firmware.

NOTE. If you power off the oscilloscope, eject a floppy disk, or there is a power
outage during the upgrade process, you must power off the oscilloscope and do
the firmware upgrade procedure, starting at step 6, before you can use the
oscilloscope.

9. Remove the floppy disk.

2–8 TDS3000 Series Service Manual

 Operating Information

Installing a Communication Module

CAUTION. To avoid damage to the oscilloscope or communication module,

observe the ESD precautions described on page ix.

To install one of the optional communications modules, do these steps:

1. Turn the oscilloscope power off.
2. Press down on the latching tab to remove the blank cover.
3. Slide the communication module into the compartment until the internal
connectors are seated and the latching tab locks.
4. Turn power on. The communication module is now ready for your use.
To remove a communication module, do these steps:
1. Turn the oscilloscope power off.
2. Press down on the latching tab and then use a small screwdriver to alternate-
ly pry out the sides of the communication module.
3. Slide out the communication module and store it in an ESD-shielded bag.
Install the blank cover if no other communication module is to be installed.

Latching tab

TDS3000 Series Service Manual 2–9

Operating Information

Front-Panel Menus and Controls

The front panel has buttons and controls for the functions you use most often.
The front panel has menus to access more specialized functions.

Using the Menu System To use the menu system, follow the steps shown on the next two pages.
1. Push a dark-colored front-panel menu button to display the menu you want
to use.

MEASURE SAVE/RECALL QUICKMENU

CURSOR DISPLAY UTILITY

VERTICAL HORIZONTAL TRIGGER ACQUIRE

2. Push a bottom screen button to select a menu item. If a pop-up menu

appears, continue to push the screen button to select an item from the pop-up
menu.

2–10 TDS3000 Series Service Manual

 Operating Information

3. Push a side screen button to choose a menu item. If the menu item contains
more than one choice, push the side screen button again to make the choice.

4. Certain menu choices require you to set a numerical value to complete the
setup. Use the general purpose knob to adjust the parameter value. Push the
COARSE button to make larger adjustments.

SELECT

COARSE

VERTICAL
POSITION

TDS3000 Series Service Manual 2–11

Operating Information

Using the Menu Buttons You can use the menu buttons to perform many functions in the oscilloscope.

SELECT MEASURE SAVE/RECALL QUICKMENU

COARSE CURSOR DISPLAY UTILITY

1 2 3 4 5 6

1. MEASURE. Performs automated measurements of waveforms.

2. CURSOR. Activates the cursors.
3. SAVE/RECALL. Saves and recalls setups and waveforms to memory or a floppy disk.
4. DISPLAY. Changes the appearance of waveforms and the display screen.
5. QUICKMENU. Activates QuickMenus such as the built-in Quick Scope feature.
6. UTILITY. Activates the system utility functions, such as selecting a language.

VERTICAL HORIZONTAL TRIGGER ACQUIRE

POSITION POSITION LEVEL

SCALE SCALE
WAVEFORM
INTENSITY

7 8 9

7. Vertical MENU. Adjusts the scale, position, and offset of waveforms. Sets the input
parameters.
8. Trigger MENU. Adjusts the trigger functions.
9. Acquire MENU. Sets the acquisition modes and horizontal resolution, and resets the
delay time.

2–12 TDS3000 Series Service Manual

 Operating Information

Using the Dedicated These dedicated buttons and controls generally control waveforms and cursors
Controls without the use of menus.

3 4 5 6

SELECT MEASURE SAVE/RECALL QUICKMENU

2
COARSE CURSOR DISPLAY UTILITY

1
VERTICAL HORIZONTAL TRIGGER ACQUIRE
POSITION POSITION LEVEL
7

8
9
10
SCALE SCALE 11
WAVEFORM
19 INTENSITY

12
13

18 17 16 15 14

1. COARSE. Causes the general purpose knob and position knobs to make adjustments
more quickly.
2. SELECT. Toggles between the two cursors to select the active cursor.
3. General purpose knob. Moves the cursors. Sets numerical parameter values for some
menu items. Push COARSE to make adjustments quickly.
4. Vertical POSITION. Adjusts the vertical position of the selected waveform. Push
COARSE to make adjustments more quickly.
5. Horizontal POSITION. Adjusts the trigger point location relative to the acquired
waveforms. Push COARSE to make adjustments quickly.
6. Trigger LEVEL. Adjusts the trigger level.
7. RUN/STOP. Stops and restarts acquisition.
8. SINGLE SEQ. Sets acquisition, display, and trigger parameters for a single-shot
(single-sequence) acquisition.
9. SET TO 50%. Sets the trigger level to the midpoint of the waveform.
10. AUTOSET. Automatically sets the vertical, horizontal, and trigger controls for a usable
display.
11. FORCE TRIG. Forces an immediate trigger event.

TDS3000 Series Service Manual 2–13

Operating Information

12. WAVEFORM INTENSITY. Controls waveform intensity.

13. B TRIG. Activates the B trigger. Changes the trigger menu to set the B-trigger
parameters.
14. DELAY. Enables delayed acquisition relative to the trigger event. Use horizontal
POSITION to set the amount of delay.
15. Horizontal SCALE. Adjusts the horizontal scale factor.
16. Horizontal zoom. Splits the screen and magnifies the current acquisition horizontally.
17. Waveform OFF. Removes the selected waveform from the display.
18. Vertical SCALE. Adjusts the vertical scale factor of the selected waveform.
19. CH1, CH2, (CH3, CH4,) MATH. Displays a waveform and chooses the selected
waveform. REF shows the reference waveform menu.

20 21 22 23

20. Hard copy. Initiates a hard copy using the port selected in the Utility menu.
21. Power switch. Turns power to on or standby.
22. Wrist-strap ground. Use to connect a wrist strap when working with ESD-sensitive
circuits. This connector is not a safety ground.
23. MENU OFF. Clears menu from the display.

2–14 TDS3000 Series Service Manual

 Operating Information

Identifying Items in the The following items may appear in the display; not all items are visible at any
Display given time. Some readouts move outside the graticule area when menus are
turned off.

2 3 4 5 6 7

13 9
10

12 11

1. Waveform baseline icons show the zero-volt level of the waveforms (ignoring the effect
of offset). The icon colors correspond to the waveform colors.
2. Acquisition readout shows when acquisition is running, stopped, or when acquisition
preview is in effect.
3. Trigger position icon shows the trigger location in the waveforms.
4. Expansion point icon shows the point that the horizontal scale expands and compresses
around.
5. Waveform record icon shows the trigger location relative to the waveform record. The
line color corresponds to the selected waveform color.
6. Trigger status readout show trigger status.
7. Trigger level icon shows the trigger level on the waveform. The icon color corresponds
to the trigger source channel color.
8. Cursor and measurement readouts show results and messages.
9. Trigger readouts show the trigger sources, slopes, and levels, and position.
10. Readout shows the delay setting or the trigger location within the record.
11. Horizontal readout shows the main or zoom time/division.
12. Auxiliary waveform readouts show the vertical and horizontal scale factors of the math
or reference waveforms.
13. Channel readouts show the channel scale factor, coupling, input resistance, bandwidth
limit, and invert status.

TDS3000 Series Service Manual 2–15

Operating Information

14 15

14. A triangle icon with the battery icon indicates that a battery is installed and battery
power is in use. The battery icon shows the approximate charge level of the battery. See
page 2–4 for important safety information.
15. A power-plug icon with the battery icon indicates that a battery is installed but line
power is in use. The battery may be charging. The battery icon shows the approximate
charge level.

Using Quick Menus The QuickMenu feature simplifies the use of the oscilloscope. When you push
the QUICKMENU button, a set of frequently used menu functions show on the
display. Then, push the screen buttons around the display to operate the
QuickMenu.

Using Quick Scope. Quick Scope is one type of QuickMenu that you can use to
control the basic oscilloscope functions. You can perform many tasks without
using the regular menu system. If you need to use a function that is not contained
in the Quick Scope menu, push the button you would normally push to access
that function. For example, if you want to add an automatic measurement, push
the MEASURE button to set up the measurement. Then, push the QUICKMENU
button to return to the Quick Scope menu with the measurement also in the
display.

2–16 TDS3000 Series Service Manual

 Operating Information

1 2

7 5 4 3

1. Edge Trigger controls. Push these screen buttons to set trigger parameters for edge
trigger.
2. Trigger controls if either B trigger or video trigger is selected.
3. Cursor control. Push this screen button to turn on cursors and select the cursor type.
Push the SELECT button to toggle between the two cursors to select the active cursor.
Use the general purpose knob to move the active cursor.
4. Acquisition controls. Push these screen buttons to set acquisition parameters.
5. Channel vertical controls. Push these screen buttons to set vertical controls for the
selected channel. Use the CH1, CH2, CH3, CH4, MATH, and REF buttons to select the
channel you want to control.
6. Vertical controls if either the math waveform or a reference waveform is selected.
7. Menu. Push this screen button to select a specific QuickMenu display if more than one
is available.

NOTE. Items in the Quick Scope display not mentioned above are also contained
in the regular display. Those items are described on page 2–15.

Other QuickMenus. Some optional application packages include a custom

QuickMenu display. Those QuickMenus contain specific features that are
important for the application.

TDS3000 Series Service Manual 2–17

Operating Information

Front-Panel Connectors
1
1MW, 13pF ≤300 VRMS CATl 1MW, 13pF ≤300 VRMS CATl

CH 1 CH 2 PROBE COMP CH 3 CH 4
[ Ɩ5V

50W 50W
≤5VRMS ≤5VRMS

1
1MW, 13pF ≤300 VRMS CATl 1MW, 17pF ≤300 VRMS CATl

CH 1 CH 2 PROBE COMP EXT TRIG

[ Ɩ
5V

50W
≤5VRMS

2 3

1. PROBE COMP. Square wave signal source to compensate probes.

2. CH1, CH 2, (CH3, CH4). Channel inputs with TekProbe interface.
3. EXT TRIG. External trigger input with TekProbe interface (two-channel models only).

2–18 TDS3000 Series Service Manual

 Operating Information

Rear-Panel Connectors

1 2 3

5 4

1. Parallel printer port. Connect to a printer to make hard copies.

2. CAL switch. For use by authorized service personnel only.
3. DC power output. Provides accessory power.
4. Ground terminal. Connect to earth ground when using battery power. See page 2–4 for
important safety information.
5. Power input. Attach to an AC power line with integral safety ground.

6 TDS3GM 7

8 TDS3VM 7

6. GPIB port. Connect to a controller for remote programmability.

7. RS-232 port. Connect to a controller or terminal for remote programmability or
printing.
8. VGA port. Connect to a VGA monitor to display the screen image.

TDS3000 Series Service Manual 2–19

Operating Information

Probe Compensation
Perform this adjustment to match your probe to the input channel. This should be
done whenever you attach a passive probe for the first time to any input channel.

1. Connect the oscilloscope probe to channel 1. AUTOSET

Attach the probe tip and reference lead to the PROBE COMP button
PROBE COMP connectors, then push AUTO-
SET.

If using the probe hook-tip, ensure a proper

connection by firmly twisting the tip onto the
probe. CH 1

2. Check the shape of the displayed waveform.

Overcompensated

Undercompensated

Compensated correctly

3. If necessary, adjust your probe.

Repeat as necessary. L

2–20 TDS3000 Series Service Manual

 Operating Information

Self Calibration
The self calibration routine lets you quickly optimize the oscilloscope signal path
for maximum measurement accuracy. You can run the routine anytime but you
should always run the routine if the ambient temperature changes by 10_ C or
more.
To compensate the signal path, do the following steps:
1. Disconnect any probes or cables from the channel input connectors.
2. Push the UTILITY button.
3. Push the System screen button to select Cal.
4. Push the Signal Path screen button.
5. Push OK Compensate Signal Path. This procedure takes several minutes to
complete.

NOTE. The signal path compensation does not include calibration to the probe
tip.

TDS3000 Series Service Manual 2–21

Operating Information

2–22 TDS3000 Series Service Manual

Theory of Operation

This chapter describes the electrical operation of the oscilloscope to the module
level. Figure 3–1 shows the oscilloscope module interconnections.

Display
backlight Display

Parallel printer
Battery connector
pack

J150 J950 J500 J860 J810

AC Line comm. module
Power
supply J100 J100 J900 Front Input ports for
Battery J700 panel application
board modules
Main board
J170 J200
Floppy
J800 Disk Drive
Fan
Attenuator circuit

15 VDC external
device power
connector
Ch 1 Ch 2 EXT 2-channel oscilloscopes
Ch 1 Ch 2 Ch 3 Ch 4 4-channel oscilloscopes

Figure 3–1: TDS3000 series block diagram

Power Supply
The power supply converts AC line voltage to 15 VDC to power all internal
circuits and an external power connector. It also supplies power to charge the
optional battery pack.

TDS3000 Series Service Manual 3–1

Theory of Operation

Battery Board
The battery board provides the following functions:
H Interfaces to the optional battery pack (powers the oscilloscope from the
battery pack or charges the battery pack when the oscilloscope is connected
to AC line).
H Turns on AC power to the oscilloscope.
H Converts 15 VDC from the power supply to 5 VDC for the main and front
panel boards and ±15 VDC for probe power.
H Powers the cooling fan.
H Routes 15 VDC from the power supply to the external power connector for
powering external devices.

Main Board
The Main Board module contains the following functions.

Acquisition System The acquisition system begins with the analog signal path and ends with a
digitized signal in memory. The signal enters a channel input and then passes
through an attenuator and preamplifier. The analog signal from each preamplifier
goes through a sampler and digitizer, a time base controller, and then into
acquisition memory. The analog signal from each preamplifier is also distributed
to a trigger circuit.

Trigger System The trigger system processes the analog signals from the preamplifiers and sends
trigger information to the time base controller. Advanced trigger functions are
enabled only when the appropriate application modules and supporting software
is installed.

Display System The display system combines live waveform data from acquisition memory with
menus and text and stores this information in display memory. It then uses this
data to refresh the VGA display module (LCD).

Processor System The processor system contains a MPC680DC Power PC microprocessor that
controls the entire instrument. The processor system also contains flash ROM,
system RAM, and interfaces to communication modules, the parallel printer port,
and the floppy disk drive.

3–2 TDS3000 Series Service Manual

 Theory of Operation

Power Converter The power converter receives 15 VDC (or battery voltage) from the battery board
and generates voltages for the analog and digital circuitry on the main board.

Display Module
The display module consists of a color liquid crystal display (LCD), a display
driver, a pair of fluorescent back light tubes, and a high-voltage back light power
supply.

Front-Panel Board
The front-panel board contains a microprocessor that reads the front-panel
buttons and controls and then sends this information to the processor system.
The front-panel board also generates the probe compensation output signal and
provides an interface to the application modules.

Disk Drive
The disk drive module consists of a 3.5 inch, IBM format, floppy disk drive. The
disk drive is controlled by circuitry on the Main Board.

TDS3000 Series Service Manual 3–3

Theory of Operation

3–4 TDS3000 Series Service Manual

Performance Verification

n
This chapter contains performance verification procedures for the specifications
marked with the symbol. The following equipment, or a suitable equivalent,
is required to complete these procedures.

Minimum
Description requirements Examples
DC Voltage Source 3 mV to 4 V, ±0.1% accuracy Wavetek 9500
Os s pe C
Oscilloscope Calibrator
r r with
Leveled Sine Wave Generator 50 kHz to 500 MHz, ±3%
two 9510 Output Modules
amplitude accuracy
Time Mark Generator 10 ms period, ±50 ppm accu-
racy

You may need additional cables and adapters, depending on the actual test
equipment you use.
These procedures cover all TDS3000 oscilloscope models. Please disregard
checks that do not apply to the specific model you are testing.
Photocopy the test record on the next two pages and use them to record the
performance test results for your oscilloscope.

TDS3000 Series Service Manual 4–1

Performance Verification

Test Record

Serial
number Procedure performed by Date

Test Passed Failed

Self Test

Performance checks Low limit Test result High limit

Channel 1 DC 1 mV/div 99.25 mV 100.8 mV
me s reme
measurement
r
accuracy 2 mV/div –7.540 mV –6.460 mV
5 mV/div –101.8 mV –98.24 mV
50 mV/div 982.4 mV 1.018 V
50 mV/div 632.4 mV 667.6 mV
50 mV delta 340.5 mV 359.5 mV
90 mV/div –339.3 mV –290.7 mV
200 mV/div 9.900 V 10.10 V
1 V/div –10.30 V –9.698 V
Channel 2 DC 1 mV/div 99.25 mV 100.8 mV
me s reme
measurement
r
accuracy 2 mV/div –7.540 mV –6.460 mV
5 mV/div –101.8 mV –98.24 mV
50 mV/div 982.4 mV 1.018 V
50 mV/div 632.4 mV 667.6 mV
50 mV delta 340.5 mV 359.5 mV
90 mV/div –339.3 mV –290.7 mV
200 mV/div 9.900 V 10.10 V
1 V/div –10.30 V –9.698 V

4–2 TDS3000 Series Service Manual

 Performance Verification

Performance checks Low limit Test result High limit

Channel 3 DC 1 mV/div 99.25 mV 100.8 mV
me s reme
measurement
r
accuracy 2 mV/div –7.540 mV –6.460 mV
5 mV/div –101.8 mV –98.24 mV
50 mV/div 982.4 mV 1.018 V
50 mV/div 632.4 mV 667.6 mV
50 mV delta 340.5 mV 359.5 mV
90 mV/div –339.3 mV –290.7 mV
200 mV/div 9.900 V 10.10 V
1 V/div –10.30 V –9.698 V
Channel 4 DC 1 mV/div 99.25 mV 100.8 mV
me s reme
measurement
r
accuracy 2 mV/div –7.540 mV –6.460 mV
5 mV/div –101.8 mV –98.24 mV
50 mV/div 982.4 mV 1.018 V
50 mV/div 632.4 mV 667.6 mV
50 mV delta 340.5 mV 359.5 mV
90 mV/div –339.3 mV –290.7 mV
200 mV/div 9.900 V 10.10 V
1 V/div –10.30 V –9.698 V
Channel 1 bandwidth 425 mV —
Channel 2 bandwidth 425 mV —
Channel 3 bandwidth 425 mV —
Channel 4 bandwidth 425 mV —
Channel 1 rising slope stable trigger —
trigger
r er sensitivity
se s
falling slope stable trigger —
Channel 2 rising slope stable trigger —
trigger
r er sensitivity
se s
falling slope stable trigger —
Channel 3 rising slope stable trigger —
trigger
r er sensitivity
se s
falling slope stable trigger —
Channel 4 rising slope stable trigger —
trigger
r er sensitivity
se s
falling slope stable trigger —
Sample rate and delay time accuracy –2 divisions +2 divisions

TDS3000 Series Service Manual 4–3

Performance Verification

Performance Verification Procedures

Before beginning these procedures, two conditions must first be met:
H The oscilloscope must have been operating continuously for ten minutes in
an environment the meets the operating range specifications for temperature
and humidity.
H You must perform the Compensate Signal Path operation described on page
2–21. If the operating temperature changes by more than 10° C, you must
perform the Compensate Signal Path operation again.
The time required to complete the entire procedure is approximately one hour.

WARNING. Some procedures use hazardous voltages. To prevent electrical shock,

always set voltage source outputs to 0 V before making or changing any
interconnections.

Self Test This procedure uses internal routines to verify that the oscilloscope functions and
passes its internal self tests. No test equipment or hookups are required. Start the
self test with these steps:
1. Disconnect all probes and cables from the oscilloscope inputs.
2. Push the UTILITY menu button.
3. Push the System screen button to select Diags.
4. Push the Loop screen button and choose Once.
5. Push the Execute screen button.
6. Push the OK Confirm Run Test screen button.
A dialog box displays the result when the self test completes. Push the MENU
OFF screen button to continue operation.

4–4 TDS3000 Series Service Manual

 Performance Verification

Check DC Voltage This test checks the DC voltage measurement accuracy in the average acquisition
Measurement Accuracy mode.
1. Set the DC voltage source output level to 0 V.
2. Connect the DC voltage source to the oscilloscope channel 1 input as shown
below.
DC voltage
source
TDS3000 Series Oscilloscope

Ch 1

3. Push the SAVE/RECALL menu button.

4. Push the Recall Factory Setup screen button and then push the OK
Confirm Factory Init screen button.
5. Push the acquire MENU button.
6. Push the Mode screen button and then push the Average screen button.
7. Adjust the number of averages to 16 with the general purpose knob.
8. Skip to step 11.
9. Move the DC voltage source output cable to the oscilloscope channel you
want to check.
10. Push the channel button (CH 1, CH 2, CH 3, or CH 4) for the channel you
want to check.
11. Push the MEASURE menu button.
12. Push the Select Measurement screen button.
13. Push the – more – screen button until you can select the Mean measure-
ment.
14. Push the vertical MENU button.

TDS3000 Series Service Manual 4–5

Performance Verification

Vertical SCALE Invert Bandwidth limit Input Low High

setting setting setting Offset voltage limit limit
1 mV/div Off 20 MHz 96.5 mV 100 mV 99.25 mV 100.8 mV
2 mV/div Off 20 MHz 0.0 V –7 mV –7.540 mV –6.460 mV
5 mV/div Off 20 MHz –82.5 mV –100 mV –101.8 mV –98.24 mV
50 mV/div Off Full 825 mV 1.0 V 982.4 mV 1.018 V
50 mV/div Off Full 825 mV 650 mV 632.4 mV 667.6 mV
50 mV 340.5 mV 359.5 mV
delta1
90 mV/div 2 Off Full 0.0 V –315 mV –339.3 mV –290.7 mV
200 mV/div Off 150 MHz 3 9.3 V 10 V 9.900 V 10.10 V
1 V/div On 4 150 MHz 3 –6.5 V 10 V –10.30 V –9.698 V
1 Refer to step 15e on page 4–6 to calculate 50 mV delta measurement.
2 Push the Vertical MENU button, push the Fine Scale screen button, then use the general purpose knob to adjust setting to
90 mV/div.
3 Use the Full bandwidth setting on the TDS3012 or TDS3014 oscilloscopes.
4 Make sure to turn Invert setting to On for this measurement.

15. For each row of the table, do these steps:

a. Set the vertical SCALE control to the setting in the table.
b. Set the Invert and Bandwidth Limit controls to the settings in the table.
c. Set the output of the DC voltage source to the voltage level in the table.
d. Verify that the oscilloscope Mean measurement is within the limits listed in
the above table.

e. For the 50 mV delta measurement, subtract the second 50 mV measurement

from the first 50 mV measurement; verify that the difference is within the
limits stated in the Delta row of the table.

16. Repeat steps 15a through 15e for each row in the table.
17. Push the waveform off button.
18. Repeat steps 9 through 17 for each channel of the oscilloscope (not including
the external trigger input on some models).

4–6 TDS3000 Series Service Manual

 Performance Verification

Check Bandwidth This test checks the bandwidth for each channel.
1. Connect the output of the leveled sine wave generator to the oscilloscope
channel 1 input as shown below.
Leveled sine
wave generator
TDS3000 Series Oscilloscope

Ch 1

2. Push the SAVE/RECALL menu button.

3. Push the Recall Factory Setup screen button and then push the OK
Confirm Factory Init screen button.
4. Push the acquire MENU button.
5. Push the Mode screen button and then push the Average screen button.
6. Adjust the number of averages to 16 with the general purpose knob.
7. Push the trigger MENU button.
8. Push the Source screen button and then push the Vert screen button.
9. Push the Coupling screen button and then push the Noise Reject screen
button.
10. Skip to step 13.
11. Move the output cable of the leveled sine wave generator to the oscilloscope
channel you want to check.
12. Push the channel button (CH 1, CH 2, CH 3, or CH 4) for the channel you
want to check.
13. Set the horizontal SCALE to 10 ms/div.
14. Push the vertical MENU button.
15. Push the Coupling screen button and select 50 W input resistance.
16. Push the MEASURE menu button.
17. Push the Select Measurement screen button.

TDS3000 Series Service Manual 4–7

Performance Verification

18. Push the – more – screen button until you can select the Pk-Pk measure-
ment.
19. Set the vertical SCALE to 100 mV/div.
20. Set the output frequency of the leveled sine wave generator to 50 kHz.
21. Set the output amplitude of the leveled sine wave generator so the peak-to-
peak measurement is between 599 mV and 601 mV.
22. Set the horizontal SCALE to 10 ns/div.
23. Set the output frequency of the leveled sine wave generator to the frequency
shown in the table below.

Oscilloscope model Frequency

TDS3012, TDS3014 100 MHz
TDS3032, TDS3034 300 MHz
TDS3052, TDS3054 500 MHz

24. Verify that the peak-to-peak measurement is ≥425 mV.

25. Push the waveform off button.
26. Repeat steps 11 through 25 for each channel of the oscilloscope (not
including the external trigger input on some models).

4–8 TDS3000 Series Service Manual

 Performance Verification

Check Channel This test checks the edge-trigger sensitivity for each channel.
Edge-Trigger Sensitivity
1. Connect the output of the leveled sine wave generator to the oscilloscope
channel 1 input as shown below.
Leveled sine
wave generator
TDS3000 Series Oscilloscope

Ch 1

2. Push the SAVE/RECALL menu button.

3. Push the Recall Factory Setup screen button and then push the OK
Confirm Factory Init screen button.
4. Push the acquire MENU button.
5. Push the Mode screen button and then push the Average screen button.
6. Adjust the number of averages to 16 with the general purpose knob.
7. Push the trigger MENU button.
8. Push the Source screen button and then push the Vert screen button.
9. Set the horizontal SCALE to 10 ns/div.
10. Skip to step 13.
11. Move the output cable of the leveled sine wave generator to the oscilloscope
channel you want to check.
12. Push the channel button (CH 1, CH 2, CH 3, or CH 4) for the channel you
want to check.
13. Push the vertical MENU button.
14. Push the Coupling screen button and select 50 W input resistance.
15. Push the MEASURE menu button.
16. Push the Select Measurement screen button.
17. Push the – more – screen button until you can select the Pk-Pk measure-
ment.
18. Set the vertical SCALE to 500 mV/div.

TDS3000 Series Service Manual 4–9

Performance Verification

19. Set the output frequency of the leveled sine wave generator to the frequency
shown in the table below.

Oscilloscope model Frequency

TDS3012, TDS3014 100 MHz
TDS3032, TDS3034 300 MHz
TDS3052, TDS3054 500 MHz

20. Set the output amplitude of the leveled sine wave generator so the peak-to-
peak measurement is approximately 500 mV.
21. Push the SET TO 50% button. Adjust the trigger LEVEL as necessary and
then verify that triggering is stable.
22. Push the trigger MENU button.
23. Push the Slope screen button and select the \ (falling) slope.
24. Push the SET TO 50% button. Adjust the trigger LEVEL as necessary and
then verify that triggering is stable.
25. Push the Slope screen button and select the / (rising) slope.
26. Push the waveform off button.
27. Repeat steps 11 through 26 for each channel of the oscilloscope (not
including the external trigger input on some models).

4–10 TDS3000 Series Service Manual

 Performance Verification

Check Sample Rate and This test checks the time base accuracy.
Delay Time Accuracy
1. Connect the output of the leveled sine wave generator to the oscilloscope
channel 1 input as shown below.
Time mark
generator
TDS3000 Series Oscilloscope

Ch 1

2. Push the SAVE/RECALL menu button.

3. Push the Recall Factory Setup screen button and then push the OK
Confirm Factory Init screen button.
4. Set the time mark generator period to 10 ms. Use a time mark waveform
with a fast rising edge.
5. If adjustable, set the time mark amplitude to approximately 1 Vp-p.
6. Push the DELAY button to turn delay off.
7. Push the vertical MENU button.
8. Push the Coupling screen button and select 50 W input resistance.
9. Set the vertical SCALE to 500 mV/div.
10. Set the horizontal SCALE to 2 ms/div.
11. Adjust the vertical POSITION control to center the time mark signal on the
screen.
12. Adjust the trigger LEVEL as necessary to obtain a triggered display.
13. Adjust the horizontal POSITION control to move the trigger location to the
center of the screen (50%).
14. Push the DELAY button to turn delay on.

TDS3000 Series Service Manual 4–11

Performance Verification

15. Turn the horizontal POSITION control counter-clockwise to set the delay to
exactly 10 ms.
16. Set the horizontal scale to 1 ms/div.
17. Check that the rising edge of the marker crosses the center horizontal
graticule line within ±2 divisions of center graticule.

NOTE. One division of displacement from graticule center corresponds to a 100

ppm time base error.

This completes the performance verification procedure.

4–12 TDS3000 Series Service Manual

Adjustment Procedures

This chapter contains the factory adjustment procedures for the oscilloscope.
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures. Also refer to the chapter Operating Information for information
about using the oscilloscope.

NOTE. The voltage references inside the oscilloscope are very stable over time
and should not require routine adjustment. Before performing any procedure in
this chapter, first verify that the oscilloscope does not meet specifications. Refer
to the chapter Performance Verification for procedures to verify the specifica-
tions.

Required Equipment
The following equipment, or a suitable equivalent, is required to complete these
procedures.

Minimum
Description requirements Example
DC voltage source 50 mV to 50 V, ±0.1% ampli- Wavetek 9500 Oscilloscope
tude accuracy Calibrator with one 9510
O p Modulee
Output
Leveled sine wave generator 30 kHz to 50 MHz, 100 ppm
frequency accuracy, 3% ampli-
tude accuracy
Fast-rise generator 1 MHz repetition rate, 1 V
Pk-Pk signal, ≤1 ns rise time
50 W BNC cable BNC male to BNC male, Tektronix part number
(five required 1) ≈ 10 in (25 cm) long 012-0208-00
BNC T (three required 1) One male and two female Tektronix part number
BNC connectors 103-0030-00
BNC female-to-female adapter Two female BNC connectors Tektronix part number
103-0028-00
Adjustment tool Non conducting shaft with Tektronix part number
diameter ≤2.5 mm (≤0.1 in) 003-1433-00
1 The number required is reduced by two if you are adjusting a two-channel
oscilloscope.

TDS3000 Series Service Manual 5–1

Adjustment Procedures

Overview of the Adjustment Process

The oscilloscope is protected from inadvertently changing factory adjustments
by a rear-panel switch. To perform the factory adjustment, you must push and
hold the switch while you power on the oscilloscope.
Before performing adjustment procedures, you must warm up the oscilloscope at
least ten minutes in an ambient temperature between 20° C and 30° C. Adjust-
ments performed prior to warm-up or outside this temperature range may result
in poor performance.
The factory adjustment procedure consists of a series of steps; as you move
through these steps, the oscilloscope display provides instructions that describe
the specific input signal requirements for each step. If the the step passes, the
oscilloscope moves on to the next step. If any step fails, you can repeat the step
or choose to abort the procedure.

NOTE. During some steps, the instrument may appear to be idle for several
minutes while it is processing information internally. Please have patience.

If all steps in the procedure are completed successfully, a “Pass” message is

displayed and the new calibration constants take affect. If the procedure fails for
any reason, the oscilloscope reverts to the previous calibration settings.

5–2 TDS3000 Series Service Manual

 Adjustment Procedures

Signal Connections
The adjustment procedure requires three types of equipment setups if you are
adjusting a four-channel oscilloscope, or four types if you are adjusting a
two-channel oscilloscope. For each step of the procedure, the oscilloscope
display indicates which setup is the correct one to use. The equipment setups are
described below.

Apply DC Voltage to The first steps require a DC voltage (or zero volts) to be applied simultaneously
Channels to all the channels. A typical on-screen instruction might read:
Apply 0.0000 V DC signal to all channels.
When you see an instruction similar to this, connect the oscilloscope to the DC
voltage source to all the channels as shown below and then set the DC voltage to
the specified value.

DC voltage Four-channel TDS3000

source Series Oscilloscope

Equal-length
BNC cables

BNC tees

DC voltage Two-channel TDS3000 Series

source Oscilloscope

Equal-length
BNC cables

BNC tee

TDS3000 Series Service Manual 5–3

Adjustment Procedures

NOTE. If the DC voltage source you are using has an output head, use a
female-to-female BNC adapter and a short BNC cable to make the connection to
the first BNC tee.
When you are given the instruction to apply a 0 V DC signal, turn off or ground
the output of the DC voltage source to be sure that no DC voltage is present.

Apply Pk-Pk Voltage to a Later in the procedure, a leveled sine wave needs to be applied to each channel,
Channel one channel at a time. A typical on-screen instruction might read:
Apply 400.00 mV PkĆPk sine wave signal to channel 1 only.
When you see an instruction similar to this, connect the leveled sine wave
generator to the specified channel and then set the amplitude and frequency to
the specified values.

Leveled sine
wave generator
TDS3000 Series Oscilloscope

Ch 1

NOTE. If the leveled sine wave generator you are using has an output head,
connect the head directly to the channel input.
Make sure that the AC generator output is set for a 50-ohm load for all
AC-source steps.

5–4 TDS3000 Series Service Manual

 Adjustment Procedures

Apply Fast Rise Step During the procedure a fast rise step signal needs to be applied simultaneously to
Signal to all Channels all channels. A typical on-screen instruction might read:
Apply 1.000 V PkĆPk fastĆrise signal to all channels.
Use the ’Apply DC Voltage to Channels’ equipment setup shown on page 5–3.

NOTE. Make sure that the coax cable connection path length is the same for all
channels.
The fast-rise signal Pk-Pk range is -1 V to 0 V.
Make sure to set the generator output load to 50 ohms.

Apply DC Voltage to If you are adjusting a two-channel oscilloscope, a DC voltage needs to be

External Trigger applied to the external trigger input. A typical on-screen instruction might read:
Apply -5.00 V DC signal to external trigger input.
When you see an instruction similar to this, connect the oscilloscope to the DC
voltage source and set the DC voltage to the specified value.

DC voltage
source
TDS3000 Series Oscilloscope

Ext Trig

NOTE. If the DC voltage source you are using has an output head, connect the
head directly to the external trigger input.

TDS3000 Series Service Manual 5–5

Adjustment Procedures

Factory Adjustment Procedure

To perform the factory adjustment procedure, do these steps:
1. Locate the hole that provides access to the CAL switch on the rear panel.

CAL

2. Put the adjustment tool into the CAL switch hole. Push and hold the CAL
switch in while you power on the oscilloscope. Release the switch when the
oscilloscope shows the power-on message with the oscilloscope graticule in
the background.
3. Push the SAVE/RECALL button.
4. Push the Recall Factory Setup screen button.
5. Push the OK Confirm Factory Init screen button to restore factory settings
prior to doing the factory calibration.
6. Push the MENU OFF button.
7. Push the UTILITY button.
8. Push the System screen button to select Cal.
9. Push the Factory screen button.
10. Push the OK Do Factory Calibration screen button to start the adjustment
process.

5–6 TDS3000 Series Service Manual

 Adjustment Procedures

11. Connect signals from the DC voltage source, leveled sine wave, or fast-rise
generator as instructed by the oscilloscope display. After you connect the
correct signal, push the OK Do Next Step screen button to continue the
process.

NOTE. The oscilloscope adjusts itself automatically using the reference signal
from the DC voltage source, leveled sine wave, or fast-rise generator. There are
no manual oscilloscope adjustments that you need to make.
If you make an error, such as connecting the wrong input signal, you can repeat
the last step by pushing the Return to Previous Screen screen button.

12. Continue the adjustment process until it is complete. You can abort the
process at any time by pushing the MENU OFF button or by changing to a
different menu.

TDS3000 Series Service Manual 5–7

Adjustment Procedures

5–8 TDS3000 Series Service Manual

Maintenance

This chapter contains the information needed to do periodic and corrective

maintenance on the oscilloscope. The following sections are included:
H Preparation refers you to important information contained elsewhere in this
manual.
H Preventing ESD provides general information on preventing damage to
internal modules when doing maintenance.
H Inspection and Cleaning provides procedures for inspecting the oscilloscope
and cleaning its external and internal modules.
H Removal and Installation Procedures provide procedures for the removal and
installation of modules.
H Troubleshooting provides information for isolating failed modules.
H Unpacking and Repacking Instructions provides packaging information for
shipment or storage.

Preparation
Only qualified personnel should perform service procedures. Read the Service
Safety Summary and the General Safety Summary before performing any service
procedures. Also refer to the chapter Operating Information for information
about using the oscilloscope.

Preventing ESD
When performing any service which requires internal access to the oscilloscope,
adhere to the following precautions to avoid damaging internal modules and their
components due to electrostatic discharge (ESD).

CAUTION. Static discharge can damage any semiconductor component in this

instrument.

1. Minimize handling of static-sensitive modules.

2. Transport and store static-sensitive modules in their static protected
containers or on a metal rail. Label any package that contains static-sensitive
modules.

TDS3000 Series Service Manual 6–1

Maintenance

3. Discharge the static voltage from your body by wearing a grounded antistatic
wrist strap while handling these modules. Do service of static-sensitive
modules only at a static-free work station.
4. Nothing capable of generating or holding a static charge should be allowed
on the work station surface.
5. Handle circuit boards by the edges when possible.
6. Do not slide the modules over any surface.
7. Avoid handling modules in areas that have a floor or work-surface covering
capable of generating a static charge.

Inspection and Cleaning

This section describes how to inspect for dirt and damage, and how to clean the
oscilloscope. Inspection and cleaning are done as preventive maintenance.
Preventive maintenance, when done regularly, may prevent malfunctions and
enhance reliability.
Preventive maintenance consists of visually inspecting and cleaning the
oscilloscope, and using general care when operating it. How often to do
maintenance depends on the severity of the environment in which the oscillo-
scope is used. A proper time to perform preventive maintenance is just before
adjustment of the oscilloscope.

General Care Protect the oscilloscope from adverse weather conditions. The oscilloscope is not
waterproof.
Do not store or leave the oscilloscope where the LCD display will be exposed to
direct sunlight for long periods of time.

CAUTION. To avoid damage to the oscilloscope, do not expose it to any sprays,

liquids, or solvents.

Inspection and Cleaning Inspect and clean the oscilloscope as often as operating conditions require. The
Procedures collection of dirt on internal components can cause them to overheat and
breakdown. Dirt acts as an insulating blanket, preventing efficient heat dissipa-
tion. Dirt also provides an electrical conduction path that could cause an
oscilloscope failure, especially under high-humidity conditions.

6–2 TDS3000 Series Service Manual

 Maintenance

Inspection — Exterior. Inspect the outside of the oscilloscope for damage, wear,
and missing parts. An oscilloscope that appears to have been dropped or
otherwise abused should be checked thoroughly to verify correct operation and
performance. Immediately repair defects that could cause personal injury or lead
to further damage to the oscilloscope.

Cleaning Procedure — Exterior. To clean the oscilloscope exterior, perform the

following steps:
1. Remove loose dust on the outside of the oscilloscope with a lint free cloth.
Use care to avoid scratching the clear plastic display filter.
2. Use a soft cloth or paper towel dampened with water to clean the oscillo-
scope. You can use a 75% isopropyl alcohol solution for more efficient
cleaning.

CAUTION. To avoid damage to the surface of the oscilloscope, do not use any
abrasive or chemical cleaning agents.

Inspection — Interior. During normal use, the oscilloscope case protects the
internal components against common dust and dirt. However, if it appears that
the oscilloscope may have been damaged or has been exposed to an unusually
dirty or wet environment, you should inspect and clean the interior.
To inspect and clean the interior, disassemble the oscilloscope according to the
procedure Removal and Installation Procedures on page 6–5.
Inspect the internal portions of the oscilloscope for damage and wear using
Table 6–1 as a guide. Defects found should be repaired immediately.

Table 6–1: Internal inspection check list

Item Inspect for Repair action

Front and Rear Case Cracks or deformations. Broken Repair or replace defective hard-
Cover doors or hinges. Loose labels. ware.
Metal chassis pieces Bent, fractured, or broken pieces. Repair or replace defective hard-
ware.
Circuit boards Loose, broken, or corroded solder Remove failed module and replace
connections. Burned circuit with a new module.
boards. Burned, broken, or
cracked circuit-run plating.

TDS3000 Series Service Manual 6–3

Maintenance

Table 6–1: Internal inspection check list (Cont.)

Item Inspect for Repair action

Solder connections Cold solder or rosin joints. Resolder joint and clean with
isopropyl alcohol.
Wiring and cables Loose plugs or connectors. Firmly seat connectors. Repair or
Burned, broken, or frayed wiring. replace modules with defective
wires or cables.

Cleaning Procedure — Interior. To clean the oscilloscope interior, perform the

following steps:
1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).
2. Remove any remaining dust with a lint-free cloth dampened in isopropyl
alcohol (75% solution) and rinse with warm deionized water. (A cotton-
tipped applicator is useful for cleaning in narrow spaces and on circuit
boards.)

STOP. If, after performing steps 1 and 2, a module is clean upon inspection, skip
steps 3 and 4. Proceed with step 5.
If steps 1 and 2 do not remove all the dust or dirt, all modules in the oscilloscope
except the Display Module, Fan, and Disk Drive may be spray washed using a
solution of 75% isopropyl alcohol. Proceed with step 3.

3. Spray wash dirty parts with the 75% isopropyl alcohol solution and wait
60 seconds for the majority of the alcohol to evaporate.
4. Use hot (49_ C to 60_ C / 120_ F to 140_ F) deionized water to thoroughly
rinse the parts.
5. Dry all parts with low-pressure, deionized air.
6. Dry all components and assemblies in an oven or drying compartment using
low-temperature (52_ C to 66_ C / 125_ F to 150_ F) circulating air.

Lubrication. There is no periodic lubrication required for the oscilloscope.

6–4 TDS3000 Series Service Manual

 Maintenance

Removal and Installation Procedures

This section describes how to remove and install the major mechanical and
electrical modules. It provides the following information:
H List of Modules on page 6–5 describes where to locate a list of replaceable
modules.
H Summary of Procedures on page 6–6 lists the procedures for removal and
installation of modules.
H Tools Required on page 6–7 describes the tools needed to perform the
procedures.
H Handle, on page 6–7, begins a series of procedures that describe the
removal and installation of modules.

Preparation Please read the following warning statement. Then read the following general
instructions before removing a module.

WARNING. Only qualified personnel should perform service procedures. Before

doing this or any other procedure in this manual, read the General Safety
Summary and Service Safety Summary located at the beginning of this manual.
Also, to prevent possible injury to service personnel or damage to electrical
components, read Preventing ESD on page ix.

1. Read the Summary of Procedures on page 6–6 to understand which

procedure to use to access a given module. Then read Tools Required on
page 6–7 for a list of tools needed to remove and install modules in the
oscilloscope.
2. If you are disassembling the oscilloscope for cleaning, refer to the Inspection
and Cleaning procedure on page 6–2 for cleaning instructions.
3. Remove the optional battery pack and/or communication module before
disassembling the oscilloscope.

List of Modules The Mechanical Parts List chapter provides a list of all replaceable modules.
Any electrical or mechanical module, assembly, or part listed in the parts list is
referred to as a module.

TDS3000 Series Service Manual 6–5

Maintenance

Summary of Procedures Table 6–2 lists the removal and installation procedures in order of increasing
complexity. Within each procedure, only perform the steps that are required to
access the modules that need repair.

Table 6–2: Removal and installation procedures

Procedure Modules accessed Begins on page

Handle Handle 6–7
Hub cover
Hub assembly
Rear case Rear case 6–11
Communication module cover
Communication module guide
Feet
Disk drive
Rear chassis Rear chassis 6–15
Battery board
Power supply
Power supply bracket
Line filter
DC power cable
AC line power cable
Fan
Parallel printer port
External power jack
Main board Main board 6–20
Display cable
Disk drive cable
Front chassis and display Front chassis 6–23
Module Display module
Inverter cable
Inverter board
Display module
Display Inverter board Inverter board 6–26
and backlights Backlight tubes
Front panel Knobs 6–31
Front-panel board
Flex circuit keypad contacts
Keypads

6–6 TDS3000 Series Service Manual

 Maintenance

Tools Required You will need the following tools to remove and replace all the modules in the
oscilloscope.
H Torque-limiting screwdriver, 12 in ⋅ lb (1.3 N ⋅ m) range with Torx T-10
and T-15 tips (If you are using a magnetic screwdriver with interchangeable
bits, the T-15 bit must be a long bit, at least 5 cm (2 in) overall length).
H Screwdriver with 1@8 inch flat blade
H 3@
16 inch nut driver
H Needle-nose pliers

Handle You will need a 1@8 inch flat-bladed screwdriver to remove the handle.

Removal. Use this procedure to remove the handle.

1. Use the 18@ inch flat-bladed screwdriver to pry the hub cover off of each side
of the handle.
2. Raise the handle to its full upright position.
3. Locate the handle hub on the display side of the oscilloscope.

NOTE. Do not remove the screw at the center of the handle hub.

4. Use the needle-nose pliers to pull the metal pin in the display-side hub
outward approximately 5 mm (0.2 in). If you accidentally pull the metal pin
all the way out, reinsert it half way. See Figure 6–1.

TDS3000 Series Service Manual 6–7

Maintenance

Handle

Hub

Metal pin

Figure 6–1: Pulling the hub pin

5. Place the oscilloscope on its feet on soft surface (such as an anti-static mat),
with the display-side hub facing you.
6. Lower the handle toward the rear into a horizontal position. The hub should
rotate with the handle.
7. Pull outward on the handle at the hub to release the display-side hub
assembly. You may need to rotate the handle back and forth slightly to help
release the hub assembly. See Figure 6–2.

6–8 TDS3000 Series Service Manual

 Maintenance

Rotate the handle

Pull on the handle

Hub

Figure 6–2: Releasing the hub assembly

8. Locate the remaining hub on the opposite side of the oscilloscope. Place the
oscilloscope with the remaining hub facing you.
9. Rotate the handle downward to its lowest position.
10. Use the needle-nose pliers to pull the metal pin in the remaining hub outward
approximately 5 mm (0.2 in).

TDS3000 Series Service Manual 6–9

Maintenance

11. Raise the handle to its full upright position. The hub should rotate with the
handle.
12. Pull outward on the handle to release the remaining hub assembly. You may
need to rotate the handle back and forth slightly to help release the hub
assembly.
13. Grasp the handle from both sides and remove it from the oscilloscope.

Installation. Use this procedure to reinstall the handle.

1. Place the oscilloscope on its feet on soft surface (such as an anti-static mat),
with the front facing you.
2. Verify that the front and rear cases fit together tightly.
3. Grasp the handle from both sides and stretch it over the over the top of the
oscilloscope. Rotate the handle into its full upright position. The Tektronix
logo should appear right-side up when looking down on the handle.
4. Insert one hub assembly into the handle on the right side (non display side)
of the oscilloscope. The hub assembly can go in one of two ways, 180°
apart; either way is ok.
5. While pressing in on the hub assembly with your fingers, rotate the handle
away from you into its lowest position. The hub assembly should rotate with
the handle.
6. Use the 1@8 inch flat-bladed screwdriver to push the metal pin in to lock the
hub assembly. Once locked, the hub assembly should not rotate when you
rotate the handle.
7. With the handle in its lowest position, insert the remaining hub assembly
into the handle on the display side of the oscilloscope.

6–10 TDS3000 Series Service Manual

 Maintenance

8. While pressing in on the hub assembly with your fingers, rotate the handle to
its full upright position. The hub assembly should rotate with the handle.
9. Use the 1@8 inch flat-bladed screwdriver to push the metal pin in to lock the
hub assembly.
10. Verify that both hub assemblies do not rotate when you rotate the handle.
11. Snap the hub covers into place over the hub assemblies. See Figure 6–3.

Hub cover

Figure 6–3: Reinstalling a hub cover

Rear Case You will need a Torx T-15 screwdriver to remove the rear case.

Removal. Use this procedure to remove the rear case, feet, communication
module cover, communication module guide, and disk drive.

NOTE. You must remove the handle assembly before you can remove the rear
case. Follow the procedure on page 6–7 to remove the handle.

1. Place the oscilloscope face down on soft surface (such as an anti-static mat),
with the bottom facing you.
2. Remove the screw just below the parallel printer port.
3. Remove the communication module cover or any communication module
that may be installed.
4. Lift the rear cover off of the oscilloscope chassis.
5. Remove both feet if necessary to replace them, otherwise leave the feet
installed in the back cabinet.

TDS3000 Series Service Manual 6–11

Maintenance

6. Release the small communication module guide tab by lifting the chassis,
and then remove the communication module guide. See Figure 6–4.

Tab

Communication
module guide

Figure 6–4: Communication module guide

7. Carefully open the connector that captures the disk drive flex cable and
disconnect the flex cable from the disk drive. See Figure 6–5.
8. Lift the disk drive out of the oscilloscope chassis.

6–12 TDS3000 Series Service Manual

 Maintenance

Pins are face

down

Disk drive

Figure 6–5: Flex cable to the disk drive

Installation. Use this procedure to install the disk drive, communication module
guide, feet, rear case, and communication module cover.
1. Place the oscilloscope face down on soft surface (such as an anti-static mat),
with the bottom facing you.
2. Install the communication module guide into the chassis. Lift the chassis and
insert the small tab in the chassis slot. See Figure 6–4.
3. Install the feet into the front case if you removed them in a previous step.
4. Place the disk drive into its cavity in the chassis. The flex cable should align
with its connector on the disk drive.

NOTE. If you are installing a new disk drive, remove the plastic bezel from the
new disk drive and discard the bezel. See Figure 6–6.

TDS3000 Series Service Manual 6–13

Maintenance

Disk drive
Bezel

Figure 6–6: Removing the bezel from a new disk drive

5. Carefully open the connector on the disk drive, insert the flex connector, and
then close the connector. See Figure 6–5.
6. Place the rear case over the oscilloscope chassis and lower it. Be sure that the
disk drive is captured inside the case and does not slip from its correct
position. The rear case should fit over and capture the feet.
7. Press the rear case downward so that it is seated completely.
8. Install the screw below the parallel port connector.

NOTE. The screw installed below the parallel printer connector is 0.25 inches
long. Make sure you use the correct-length screw when attaching the rear
cabinet to the rear chassis.

9. Install the communication module cover or a communication module.

6–14 TDS3000 Series Service Manual

 Maintenance

Rear Chassis You will need a Torx T-15 screwdriver to remove the rear chassis. You will
need a 3@16 inch nut driver to remove the parallel printer port cable.

Removal. Use this procedure to remove the rear chassis, battery board, external
power jack, power supply, power supply bracket, line filter, fan, and parallel
printer port cable.
1. Place the oscilloscope face down on soft surface (such as an anti-static mat),
with the bottom facing you.
2. Disconnect the parallel port ribbon cable, line trigger cable, and DC power
cable from the main board. Disconnect the spade connector on the DC power
cable from the tab on the chassis, making sure not to pull on the wire coming
out of the DC power connector. See Figure 6–7.

Line trigger cable to J980

Parallel port ribbon cable to J810

External power cable to J200

DC power
connector

Cable routes under

battery board
DC power spade
connector

Figure 6–7: Cables to the main board

TDS3000 Series Service Manual 6–15

Maintenance

3. Disconnect the external power cable from the battery board. See Figure 6–7.
4. Remove the three screws that secure the rear chassis to the front chassis.
5. Lift the rear chassis assembly from the front chassis. Thread the external
power cable through the hole in the front chassis.

STOP. If you do not need to disassemble the rear chassis assembly, skip to the
next procedure, Main Board, on page 6–20. The following instructions describe
complete disassembly of the rear chassis assembly. However, you can just
remove the modules from the rear chassis that appear to be in the way of the
module you need to access.

6. Remove the power switch extension from the power switch.

7. Disconnect the 18-pin DC power cable from the battery board. You can use
the 18@ inch flat-bladed screwdriver to help pry it loose.
8. Remove the two screws that secure the battery board to the rear chassis.
9. Disconnect the fan cable from the battery board. You can use the 1@8 inch
flat-bladed screwdriver to help undo the connection.
10. Unsnap the battery board from the rear chassis. You can use the 1@8 inch
flat-bladed screwdriver to help release the board from the snap post.
11. Disconnect the AC line power cable from the power supply.
12. Remove the DC power cable from the power supply.
13. Remove the two screws that secure the power supply to the rear chassis.
14. If you are replacing the power supply, remove the two screws that secure the
power supply to the power supply bracket.
15. Remove the external power jack from the rear chassis.
16. Use the 3@16 inch nut driver to remove the two jack posts that secure the
parallel port cable to the rear chassis. Do not lose the washers.
17. Remove the AC line power cable from the line filter and from the tab on the
chassis.
18. Remove the two screws that secure the line filter to the rear chassis.
19. Carefully bend the tabs that secure the fan to the rear chassis and remove
the fan.

6–16 TDS3000 Series Service Manual

 Maintenance

Installation. Use this procedure to install the fan, line filter, parallel printer port
cable, external power jack, power supply, battery board, and rear chassis. Skip
the steps for modules that are already installed.

Label
Key on
Power jack

Fan cable
Rear chassis hole

Bend the tabs

External power cable

Figure 6–8: Installing the fan, line filter, and line power cable

1. Insert the fan cable through the hole in the rear chassis and place the fan in
its cavity. The fan label should face toward the rear chassis. See Figure 6–9.

TDS3000 Series Service Manual 6–17

Maintenance

Line power
conductor

Green wire
(ground
conductor)

Blue wire

Line filter Green wire

Black wire

Power supply board

Figure 6–9: Installing the line filter and line power cable

2. Insert the line filter into the rear chassis and secure it with two screws. The
ground conductor should face the bottom of the instrument. See Figure 6–9.
3. Connect the line power cable to the line filter and the tab on the rear chassis.
See Figure 6–9.
4. Thread the external power cable through the square hole in the rear chassis
and snap the external power jack into place. Insert the key into the slot for
correct alignment.
5. Attach the power supply to the rear chassis with two screws. The fuse side of
the power supply board should face the line filter.
6. If you installed a new power supply, attach the power supply bracket to the
power supply with two screws. The snap post on the bracket should be on
the side of the power supply that is opposite the fuse.
7. Attach the AC line power cable to the power supply.

6–18 TDS3000 Series Service Manual

 Maintenance

8. Attach the DC power cable to the power supply.

9. Connect the fan power cable to the battery board at J170.
10. Connect the DC power cable to the battery board at J100.
11. Snap the battery board onto the post on the rear chassis.
12. Install two screws to secure the battery board to the rear chassis.
13. Insert the parallel printer connector into the hole in the rear chassis and
secure the connector with the two jack posts with the 3@16 inch nut driver.
14. Install the power switch extension onto the power switch so that it angles
outward and to the side of the rear chassis assembly.
15. Place the oscilloscope assembly face down on soft surface (such as an
anti-static mat), with the bottom facing you.
16. Position the rear chassis assembly above the oscilloscope assembly.
17. Dress the DC power cable under the power supply and toward you.
18. Thread the external power cable through the top hole in the right side of the
rear chassis and the front chassis, then lower the rear chassis onto the front
chassis. Be sure that the power switch extension goes into the hole in the
front chassis. See Figure 6–7.
19. Snap the left side of the rear chassis onto the two small tabs and then secure
the rear chassis with three screws.
20. Connect the external power cable to the battery board at J200. Make sure
that you route the cable around the front of the battery board; do not route
the cable along side of the battery connector. See Figure 6–7.
21. Connect the DC power cable to the main board at J900. Connect the spade
connector from the DC power cable to the front chassis. See Figure 6–7.
22. Connect the parallel printer port cable to the main board. See Figure 6–7.
23. Install the three screws to attach the rear chassis assembly to the front
chassis.

TDS3000 Series Service Manual 6–19

Maintenance

Main Board You will need a 1@8 inch flat-bladed screwdriver and a Torx T-15 screwdriver to
remove the main board.

Removal. Use this procedure to remove the disk drive cable and main board.
1. Place the oscilloscope assembly face down on a soft surface (such as an
anti-static mat), with the bottom facing you.
2. Use the 1@8 inch flat-bladed screwdriver to carefully lift the disk drive cable
lock on connector J800 on the main board, then pull the flat ribbon cable
from the connector. See Figure 6–10.

Inverter
Display cable
connector J950
connector J500

Front - panel
connector J700

Screwdriver

Disk drive
connector J800

Figure 6–10: Disk drive and display module cable connectors

6–20 TDS3000 Series Service Manual

 Maintenance

3. Grasp and pull up on the inverter board cable wires to disconnect the cable
from J950 on the main board. See Figure 6–10.
4. Use the 1@8 inch flat-bladed screwdriver to carefully lift the display cable from
connector J500 on the main board. See Figure 6–10.
5. Grasp and pull up on the front-panel cable wires to disconnect the cable from
J700 on the main board. See Figure 6–10.
6. Use a magnetic Torx T-15 screwdriver (long bit) to remove the four screws
that secure the main board to the front-panel assembly. See Figure 6–11.

Main board

Screws
T-15 (4)

Board snap

Release
board snap

Figure 6–11: Main Board

7. Release the two snaps that hold the main board and then lift the main board
out of the front-panel assembly.

TDS3000 Series Service Manual 6–21

Maintenance

Installation. Use this procedure to install the main board and reconnect cables.
1. Place the oscilloscope front-panel assembly face down on soft surface (such
as an anti-static mat), with the bottom facing you.
2. With the front-panel cable dressed out of the way, lower the main board into
the front chassis assembly.
3. Push down on the two main board corners to engage the snaps.
4. Use a magnetic long-bit Torx T-15 screwdriver to install the four screws
that secure the main board to the front-panel assembly. There are two
different screw sizes; use the shorter screw in the hole near the printer port
connector.
5. Insert the display cable into the J500 connector and push down on the
connector to seat it firmly.

NOTE. If after assembling the oscilloscope the display shows streaks, bars,
garbled data, or no image, open the instrument case and make sure that the
display cable is firmly and completely seated into connector J500.

6. Use the 1@8 inch flat-bladed screwdriver to carefully open the disk drive cable
connector J800 on the main board. See Figure 6–10.
7. Insert the disk drive cable (either end) and push down on the connector to
close it.
8. Connect the inverter cable to the main board at J950.
9. Connect the front-panel cable to the main board at J700.

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 Maintenance

Front Chassis and Display You will need a Torx T-10 screwdriver to remove the front chassis.
Module
Removal. Use this procedure to remove the front chassis and the display module.
1. Place the oscilloscope face down on a soft surface (such as an anti-static
mat), with the bottom facing you.
2. Use the Torx T-10 screwdriver to remove the two screws that secure the
front chassis to the front case. See Figure 6–12.

Front chassis

Screws
T-10 (2)

Front panel assembly

Figure 6–12: Front chassis

3. Lift the front chassis out of the front case. Lifting the left end of the chassis
slightly ahead of the right end helps to clear a slight interference at the right
end of the chassis.

TDS3000 Series Service Manual 6–23

Maintenance

NOTE. It is possible to remove the inverter board without removing the front
chassis or display module. If this is the only thing you need to do, skip to step 1
on page 6–26.

4. Place the front chassis with the display facing you. See Figure 6–13.
5. Use your thumbs to slide the top display module tabs up until the overhang-
ing part of the tabs clear the chassis holes. See Figure 6–13.
6. Push the tabs through the chassis holes to remove the display module.

Display chassis
Chassis assembly

Side up and push out

Figure 6–13: Display module

6–24 TDS3000 Series Service Manual

 Maintenance

Installation. Use this procedure to install the display module into the front chassis
and install the front chassis.
1. Place the front chassis with the display facing you. See Figure 6–13.
2. Push the display module tabs through the chassis holes.
3. Use your thumbs to slide all four display module tabs down as far as
possible to lock the display module in place on the front chassis.
4. Place the oscilloscope face down on a soft surface (such as an anti-static
mat), with the bottom facing you.
5. Route the front-panel cable so that it lies parallel to and along the top edge of
the bezel button flex circuit. Position the black vinyl cable cover so that the
wires are exposed from the front panel connector to just over the edge of the
front panel board.
6. Route the front panel cable through the cable post on the front panel and tuck
part of the cable just under the bottom corner of the front panel board. See
Figure 6–14.

Notch

Front-panel cable
Front chassis
Cable post

Figure 6–14: Front-panel cable routing

TDS3000 Series Service Manual 6–25

Maintenance

7. Insert the front chassis assembly into the oscilloscope. Insert the right end of
the front chassis slightly ahead of the left end to clear a slight interference at
the right end of the chassis.
8. Route the front-panel cable through the notch located on the bottom edge of
the front chassis. See Figure 6–14.
9. Use the Torx T-10 screwdriver to insert the two screws that secure the front
chassis to the front case.

Display Inverter Board You will need a 1@8 inch flat-bladed screwdriver to remove the display module
and Back light Tubes inverter board.

Removal. Use this procedure to remove the display module inverter board and
back light tubes.
1. Place the display module face down on a soft surface (such as an anti-static
mat), with the bottom facing you.
2. Disconnect the back light cables from the inverter board. See Figure 6–15.

Back light cables

Display module

Display chassis

Inverter board
assembly

Figure 6–15: Disconnect back light cables

6–26 TDS3000 Series Service Manual

 Maintenance

3. Push the tab and lift the top end of the inverter board to clear the inverter
chassis. See Figure 6–16A.
4. Lift and rotate the bottom end of the inverter board to 45°-60° angle, then
slide the inverter board clear of the chassis. See Figure 6–16B.
5. Use the 18@ inch flat-bladed screwdriver to carefully lift the tab holding the
bottom end of the inverter board chassis to the display chassis, and at the
same time lift that end of the inverter board chassis. Repeat for the other end
of the inverter board. See Figure 6–16C.

A
Rotate inverter
board and slide out Push tab in, lift
end of board

B Inverter board

Inverter chassis

Lift tab

Figure 6–16: Remove inverter board

TDS3000 Series Service Manual 6–27

Maintenance

6. Use your thumb to push the tab on the top right side of the display chassis
until the tab clears the display assembly. Then push the top-right corner of
the display, from the front of the display, to clear the tab. Repeat for the
other display chassis tab. See Figure 6–17.

Clears tab
Push tab Display chassis

Display module

Figure 6–17: Remove display from display chassis

7. Lift the right side of the display, then pull the display to the right to clear the
display from the tabs on the left side of the display chassis.

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 Maintenance

8. Use your thumb to push down the tab next to a back light tube, at the same
time pulling the back light tube cable to slide the back light out of the
display. See Figure 6–18.

Push tab
down

Display module
Backlight tubes (2)

Figure 6–18: Remove back light tube

TDS3000 Series Service Manual 6–29

Maintenance

Installation. Use this procedure to reassemble the display module.

1. Insert backlight tubes into the display, with the open side of the tube toward
the center of the display, until the tube clicks into place. The backlight tubes
slide easily into the display when they are aligned correctly.
2. Place the display chassis face down on soft surface (such as an anti-static
mat), with the bottom facing you. The extended chassis tabs should be on
your right. See Figure 6–17.
3. If the glass LCD shield is detached from the display module, place the glass
shield in the display chassis with the foam facing up. See Figure 6–19.

Foam faces up

Display glass

Figure 6–19: Installing display glass shield

4. Insert the left edge of the display into the display chassis so that the left edge
of the display fits under the tabs. See Figure 6–17.
5. Press down firmly on the right side of the display until it clicks into place
under the two display-chassis extended tabs. The tabs must be over the
aluminum shield on the back of the display.

6–30 TDS3000 Series Service Manual

 Maintenance

6. Insert the inverter board assembly into the slots at the top and bottom of the
display chassis. The high-voltage shield end of the board is at the top of the
display. Push firmly until the tabs click.
7. Insert the display back light cable connectors into the inverter board.
Position the back light cables in the display chassis clips. See Figure 6–15.

Front Panel You do not need any tools to remove the front panel board.

Removal. Use this procedure to remove the front panel, front panel buttons, bezel
button flex circuit, and bezel buttons.
1. Place the oscilloscope face up on a soft surface (such as an anti-static mat).
2. Remove the front-panel knobs by firmly pulling each knob away from the
front panel. Careful prying with a small screwdriver or similar tool may be
be necessary. See Figure 6–20.

Remove knobs (7)

Figure 6–20: Remove front-panel knobs

TDS3000 Series Service Manual 6–31

Maintenance

3. Place the oscilloscope face down on a soft surface (such as an anti-static

mat), with the bottom facing you.
4. Disconnect the bezel button flex circuit from J200 by gently pulling the flex
circuit out of the connector. Gently remove the flex circuit from the front
panel and place on a clean protected surface.
5. Remove the front-panel board by pulling back board snaps and lifting the
lower right corner of the front-panel board. Pull back the board snaps in
numeric order, starting with snap one, as shown in Figure 6–21.

Board snap (6)

Board snap (5)

Board snap (4)

Board snap (2)

Board snap (3)

Board snap (1)

Lift board from

this corner

Figure 6–21: Remove front-panel board

6–32 TDS3000 Series Service Manual

 Maintenance

6. Remove the front-panel and bezel button keypads by lifting them away from
the front panel. Do not touch the keypad contacts or place them on a
contaminated surface. See Figure 6–22.

Front panel keypad

Bezel keypad

Figure 6–22: Remove front-panel keypads

TDS3000 Series Service Manual 6–33

Maintenance

Installation. Use this procedure to reinstall the front-panel board.

1. Check that the front-panel lock nuts are still in the front panel before
installing the front panel keypad and board. These nuts are pressure-fit and
can come loose. See Figure 6–23.

Make sure lock

nuts are in place

Figure 6–23: Checking front-panel lock nuts

2. Install the front-panel keypad into the front panel. Do not touch the keypad
contacts. See Figure 6–22.
3. Insert the front-panel board by aligning the board with the alignment posts.
Then press firmly on the board, starting at the top edge, to engage the board
snaps.
4. Install the bezel button flex circuit; align the the flex circuit on the
front-panel bezel button pins and gently press the flex circuit flat.
5. Connect the bezel button flex circuit to J200.
6. Route the front-panel cable as described in steps 5 and 6 on page 6–25.
7. Install the front-panel knobs by firmly pushing each knob onto the front
panel knob shaft. Align the flat side of the knob shaft with the flat part of the
knob hole.

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 Maintenance

Troubleshooting
This section contains information and procedures to help you isolate a defective
module in a TDS3000 series oscilloscope.

WARNING. Before doing this or any other procedure in this manual, read the
General Safety Summary and Service Safety Summary found at the beginning of
this manual. Also, to prevent possible injury to service personnel or damage to
electrical components, read Preventing ESD on page ix.

Adjustment After Repair If you replace the main board, you must adjust the instrument after repair. Refer
to the chapter Adjustment Procedures for information about adjustment.

Required Tools and You need the the following equipment to troubleshoot the instrument.
Equipment
Tools and Equipment Example
DMM Tektronix TX, DMM200, or DMM300 series
handheld multimeter

TDS3000 Series Service Manual 6–35

Maintenance

Troubleshooting Procedure
Figures 6–24 through 6–31 are troubleshooting procedure flowcharts. Use them
to troubleshoot an instrument failure. Begin with Figure 6–24.

NOTE. Before performing the troubleshooting procedure, remove the instrument

cabinet (see page 6–5).

Power on the
oscilloscope.

Does No Perform the power-on

the scope display the troubleshooting procedure
power-up screen? (Figure 6–25).

Yes

Does No Perform the Module Isolation

the scope pass all the troubleshooting procedure
diagnostics? (Figure 6–31).

Yes

Done.

Figure 6–24: Primary troubleshooting procedure

6–36 TDS3000 Series Service Manual

 Maintenance

Continued from Figure 6–24.

 Power off oscilloscope.

 Remove battery if installed.
 Connect the AC power cord.
 Power on oscilloscope.
Any front panel
BNC connector
"
+5.1 VDC
( 0.15 V) Ground
Use DMM to measure (BNC shell)
voltages on front-panel BNC
"
connector pads (see BNC +15 VDC
connector diagram at right). ( 1.2 V)

Yes
Are all voltages within Proceed to Figure 6–30.

"
tolerance? –15 VDC
( 1.2 V)

"
No –5 VDC
( 0.15 V)
Troubleshoot power
distribution problem
(Figure 6–26).

Figure 6–25: Power-on troubleshooting procedure

TDS3000 Series Service Manual 6–37

Maintenance

Continued from Figure 6–25.

 Power off oscilloscope.

 Disconnect AC power cord.
 Remove instrument case.
 Check that all cables are
connected and fully seated into
board connectors.

Are all cables No  Reconnect loose cables.

connected?  Return to top of Figure 6–24.
Pin 18
Yes Pin 13

 Disconnect J100 cable from

battery board. Pin 1
 Connect AC power cord.
 Power on oscilloscope.

 Measure for +15 V DC (± 0.5 V)

between line 13 (+) and line 18 (–) of
the disconnected cable.
(see figure at right)
!WARNING!
Be careful when measuring near the
AC power supply, as there are line
voltages present on exposed parts.

Pin 1 J100
Battery board

Is there No Replace the AC

+15 volts between pins Power Supply module.
13 and 18?

Yes

AC power supply OK.

Troubleshoot battery board
(Figure 6–27).

Figure 6–26: AC power supply troubleshooting procedure

6–38 TDS3000 Series Service Manual

 Maintenance

Continued from Figure 6–26.

Pin 12

Cable from
 Power off oscilloscope. Pin 1 battery board
 Disconnect AC power cord.
 Reconnect J100 cable to the
battery board.
 Disconnect J900 cable from the
main board.
 Connect AC power cord.
 Power on oscilloscope.

 Measure voltages on
disconnected cable as shown in
diagram at right.

Pin 1 J900
Main board
No Replace the Battery
Are voltages within board module.
tolerance?
Connector DC Voltage
Yes
1 Gnd

 Power off oscilloscope.

2–4 5.1 V "0.15 V
 Disconnect AC power cord. 5 Gnd
 Reconnect J900 cable to main 8 –15 V "1.2 V
board.
 Connect AC power cord. 9 15 V "1.2 V
 Power on oscilloscope. 10 Gnd
 Measure voltages on
connected J900 cable as shown 12 ~+5.5 V (disconnected)
in diagram at right. ~+3 V (connected)

Power distribution problem

No on main board, front panel
Are voltages within
tolerance? board, or display. Proceed
to Figure 6–28.

Yes

Power distribution OK. Proceed to

module isolation troubleshooting
(Figure 6–31).

Figure 6–27: Battery module troubleshooting procedure

TDS3000 Series Service Manual 6–39

Maintenance

Continued from Figure 6–27.

 Power off oscilloscope.

 Disconnect AC power cord.
 Disconnect J700 cable from
the main board.
 Connect AC power cord.
 Power on oscilloscope.

 Measure voltages on
connected J900 cable as shown
in Figure 6–27 (page 6–39).

 Power off oscilloscope.

 Disconnect AC power cord.
 Reconnect J700 cable to main board.
No  Disconnect J950 cable from main board.
Are voltages within  Connect AC power cord.
tolerance?  Power on oscilloscope.
 Measure voltages on connected J900
Yes cable as shown in Figure 6–27 (page 6–39).

Replace the Front

Panel module.

No Power distribution problem on main

Are voltages within board or display module. Proceed to
tolerance? Figure 6–29.

Yes

Replace high voltage

inverter board.

Figure 6–28: Front panel/display backlight power troubleshooting

6–40 TDS3000 Series Service Manual

 Maintenance

Continued from Figure 6–28.

 Power off oscilloscope.

 Disconnect AC power cord.
 Disconnect J500 cable from
the main board (Figure 6–10
on page 6–20).
 Connect AC power cord.
 Power on oscilloscope.

 Measure voltages on
connected J900 cable as shown
in Figure 6–27 (page 6–39).

No
Are voltages within Replace Main board module
tolerance?

Yes

Replace Display module.

Figure 6–29: Display/Main module supply voltage troubleshooting

This procedure assumes that

the oscilloscope does not
show a graticule screen after
power on cycle and that all
module power supply voltages
are correct
(Figure 6–25 through 6–29).

Return the TDS3000

oscilloscope to the nearest
Tektronix Service Center for
repair.

Figure 6–30: No display, power supply voltages OK

TDS3000 Series Service Manual 6–41

Maintenance

This procedure assumes that

the oscilloscope displays
power-up diagnostics
messages.

Does
the power-up No
screen report any Oscilloscope is operating OK.
errors?

Yes

 Push UTILITY.
 Push System to select Diags.
 Push OK Confirm Run Test.
 Determine failure.
 Use table to select module to
replace.

Failed Test Most Likely Cause

Acquisition Main board
CPU Main board
Display Main board
Front Panel Front Panel (or Main board)
I/O Comm module (or Main board)
ROM Main board
Disk Drive Main board (or disk unit or cable)
App Modules Front Panel (or App keys)

Figure 6–31: Module isolation troubleshooting procedure

6–42 TDS3000 Series Service Manual

 Maintenance

Unpacking and Repacking Instructions

This section contains the information needed to unpack the oscilloscope and
repack it for shipment or storage.

Unpacking The oscilloscope and its standard accessories are carefully packed at the factory
in a shipping carton. If, upon receipt, damage to the shipping carton is evident,
notify the shipper. Tektronix, Inc. is not responsible for damage caused during
shipping.
If you have not already done so, carefully remove the oscilloscope and its
accessories from the shipping carton and inspect them for damage. Save the
shipping carton for repacking or storage.

Repacking Use a corrugated cardboard shipping carton having a test strength of at least
275 pounds (125 kg) and with an inside dimension at least six inches (15.25 cm)
greater than the instrument dimensions.
If the instrument is being shipped to a Tektronix Service Center, enclose the
following information:
H The owner’s address
H Name and phone number of a contact person
H Type and serial number of the instrument
H Reason for returning
H A complete description of the service required
Seal the shipping carton with an industrial stapler or strapping tape.
Mark the address of the Tektronix Service Center and also your own return
address on the shipping carton in two prominent locations.

Storage The oscilloscope should be stored in a clean, dry environment. The following
environmental characteristics apply for both shipping and storage (instrument not
operating with no disk installed):
H Temperature range: –20° C to +60° C
H Altitude: To 15,000 m
See the chapter Specifications for a complete listing of the environmental
characteristics.

TDS3000 Series Service Manual 6–43

Maintenance

6–44 TDS3000 Series Service Manual

Options

The TDS3000 series options, listed in Table 7–1, provide power cords and
documentation packages for international customers.

Table 7–1: TDS3000 Series options

Option Description
A1 Substitute universal European power cord (220 V)
A2 Substitute United Kingdom power cord (240 V)
A3 Substitute Australian power cord (240 V)
A5 Substitute Switzerland power cord (220 V)
L1 Substitute French-language documentation package
L2 Substitute Italian-language documentation package
L3 Substitute German-language documentation package
L4 Substitute Spanish-language documentation package
L5 Substitute Japanese-language documentation package
L6 Substitute Portuguese-language documentation package
L7 Substitute Simplified Chinese-language documentation package
L8 Substitute Traditional Chinese-language documentation package
L9 Substitute Korean-language documentation package
LR Substitute Russian-language documentation package
E1 English-language documentation package plus Options A1, A2, A5, L1, and L3
E2 U.S. power cord (120 V) plus Options A1, L2, L4, and L6
P1 U.S. power cord (120 V) plus Options A3, L7, L8, and L9

TDS3000 Series Service Manual 7–1

Options

7–2 TDS3000 Series Service Manual

Electrical Parts List

Refer to the Mechanical Parts List chapter for a complete listing and description
of replaceable parts for the oscilloscope.

TDS3000 Series Service Manual 8–1

Electrical Parts List

8–2 TDS3000 Series Service Manual

Diagrams

See Figure 3–1 on page 3–1 for a block/interconnect diagram of the oscilloscope.
There are no additional diagrams in this chapter.

TDS3000 Series Service Manual 9–1

Diagrams

9–2 TDS3000 Series Service Manual

Mechanical Parts List

This chapter contains a list of the replaceable modules for the TDS3000 series
oscilloscope. Use this list to identify and order replacement parts.

Parts Ordering Information

Replacement parts are available through your local Tektronix field office or
representative.
Changes to Tektronix products are sometimes made to accommodate improved
components as they become available and to give you the benefit of the latest
improvements. Therefore, when ordering parts, it is important to include the
following information in your order.
H Part number (see Part Number Revision Level below)
H Instrument type or model number
H Instrument serial number
H Instrument modification number, if applicable
If you order a part that has been replaced with a different or improved part, your
local Tektronix field office or representative will contact you concerning any
change in part number.
Change information, if any, is located at the rear of this manual.

Part Number Revision Tektronix part numbers contain two digits that show the revision level of the
Level part. For some parts in this manual, you will find the letters XX in place of the
revision level number.

Part Number Revision Level Revision Level May Show as XX

670-7918-03 670-7918-XX

When you order parts, Tektronix will provide you with the most current part for
your product type, serial number, and modification (if applicable). At the time of
your order, Tektronix will determine the part number revision level needed for
your product, based on the information you provide.

TDS3000 Series Service Manual 10–1

Mechanical Parts List

Module Servicing Modules can be serviced by selecting one of the following three options. Contact
your local Tektronix service center or representative for repair assistance.

Module Exchange. In some cases you may exchange your module for a reman-
ufactured module. These modules cost significantly less than new modules and
meet the same factory specifications. For more information about the module
exchange program, call 1-800-TEK-WIDE, extension 6630.

Module Repair and Return. You may ship your module to us for repair, after which
we will return it to you.

New Modules. You may purchase replacement modules in the same way as other
replacement parts.

Using the Replaceable Parts List

This section contains a list of the mechanical and/or electrical components that
are replaceable for the <instrument>. Use this list to identify and order replace-
ment parts. The following table describes each column in the parts list.

Parts List Column Descriptions

Column Column Name Description

1 Figure & Index Number Items in this section are referenced by figure and index numbers to the exploded view
illustrations that precede the list
2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix
3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four
indicates the serial number at which the part was discontinued. No entries indicates the part is
good for all serial numbers
5 Qty This indicates the quantity of parts used
6 Name & Description An item name is separated from the description by a colon (:). Because of space limitations, an
item name may sometimes appear as incomplete. Use the U.S. Federal Catalog handbook
H6-1 for further item name identification
7 Mfr. Code This indicates the code of the actual manufacturer of the part
8 Mfr. Part Number This indicates the actual manufacturer’s or vendor’s part number

Abbreviations Abbreviations conform to American National Standard ANSI Y1.1–1972.

10–2 TDS3000 Series Service Manual

 Mechanical Parts List

Mfr. Code to Manufacturer The table titled Manufacturers Cross Index shows codes, names, and addresses
Cross Index of manufacturers or vendors of components listed in the parts list.

Manufacturers cross index

Mfr.
code Manufacturer Address City, state, zip code
00779 AMP INC. CUSTOMER SERVICE DEPT HARRISBURG, PA 17105–3608
PO BOX 3608
060D9 UNITREK CORPORATION 3000 COLUMBIA HOUSE BLVD, SUITE 1 VANCOUVER, WA 98661
20
07416 NELSON NAME PLATE COMPANY 3191 CASITAS AVENUE LOS ANGELES, CA 90039–2410
0APF4 U S PRECISION GLASS 1900 HOLMES ROAD ELGIN, IL 60123
0GV52 SCHAFFNER EMC INC 9–B FADEM ROAD SPRINGFIELD, NJ 07081
0J9P9 GEROME MFG CO INC PO BOX 737 NEWBERG, OR 97132
403 NORTH MAIN
0KB01 STAUFFER SUPPLY CO 810 SE SHERMAN PORTLAND, OR 97214–4657
0KB05 NORTH STAR NAMEPLATE INC 5750 NE MOORE COURT HILLSBORO, OR 97124–6474
1DM20 PARLEX CORP 7 INDUSTRIAL WAY SALEM, NH 03079
31918 ITT SWITCH PRODUCTS 8081 WALLACE RD EDEN PRAIRIE, MN 55344–8798
32997 BOURNS INC TRIMPOT DIVISION RIVERSIDE, CA 92507–2114
1200 COLUMBIA AVE
50356 TEAC AMERICA INC 7733 TELEGRAPH RD MONTEBELLO, CA 90640–6537
PO BOX 750
7X318 KASO PLASTICS INC 5720–C NE 121ST AVE, STE 110 VANCOUVER, WA 98682
80009 TEKTRONIX INC 14150 SW KARL BRAUN DR BEAVERTON, OR 97077–0001
PO BOX 500
86928 SEASTROM MFG CO INC 456 SEASTROM STREET TWIN FALLS, ID 83301
TK00J NEC AMERICA INC. 10900 N E 8TH ST BELLEVUE, WA 98004
SUITE 1208
TK1163 POLYCAST INC 9898 SW TIGARD ST TIGARD, OR 97223
TK1955 ARTESYN TECHNOLOGIES 47173 BENICIA ST FREMONT, CA 94538
TK2376 CONDUCTIVE RUBBER TECH 22125 17TH AVE SE, SUITE 117 BOTHELL, WA 98021
TK2548 XEROX CORPORATION 14181 SW MILLIKAN WAY BEAVERTON, OR 97005
TK2647 INSTRUMENT SPECIALTIES CO INC. C/O TEMCO NW HILLSBORO, OR 97123
1336 SE 51ST STREET
TK6179 SPM/DYNACAST 22990 NW BENNETT ST HILLSBORO, OR 97124–5890

Exploded Views Figures 10–1 through 10–5 on the following pages show the module-level
exploded views of the TDS3000 series oscilloscope. The adjacent page is the list
of components for that exploded view, indexed by the numbers in the figure.

TDS3000 Series Service Manual 10–3

Mechanical Parts List

5
1
3
2

10 6

Figure 10–1: Exploded view, front case half

10–4 TDS3000 Series Service Manual

 Mechanical Parts List

Replaceable parts list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
10–1–1 050–3261–00 1 PARTS REPL KIT:2 CHANNEL FRONT CASE 80009 050–3261–00
ASSY,W/LABELS,TDS3012/TDS3032/TDS3052
050–3266–00 1 PARTS REPL KIT:4 CHANNEL FRONT CASE 80009 050–3266–00
ASSY,W/LABELS,TDS3014/TDS3034/TDS3054
10-1-2 260–2696–00 1 SWITCH,KEYPAD:SILICONE RUBBER,EMAT TK2376 260–2696–00
SET,BEZEL
10-1-3 260–2703–00 1 SWITCH,KEYPAD:ELASTOMERIC,FRONT TK2376 260–2703–00
PANEL,PUSHBUTTON,2 CH
260–2695–00 1 SWITCH,KEYPAD:ELASTOMERIC,FRONT TK2376 260–2695–00
PANEL,PUSHBUTTON,4 CH
10-1-4 259–0149–00 1 FLEX CIRCUIT:BEZEL BUTTONS,POLYESTER 07416 259–0149–00
10-1-5 679–4119–00 1 CKT BD SUBASSY:OEM FRONT PANEL 32997 3777S–TEK–010
10-1-6 380–1127–00 2 HOUSING,FRONT:OPTION 7X318 380–1127–00
KEY,PC/ABS,FR110,SILVER GREY
10-1-7 210–0457–00 2 NUT,PL,ASSEM WA:6–32 X 0.312,STL CD 0KB01 ORDER BY
PL,W/LOCKWASHER DESCRIPTION
10-1-8 200–4416–00 1 COVER:FRONT,PROTECTIVE,13.850 X 7.090 X 7X318 200–4416–00
2.050,PC/ABS,FR110,BLUE
10-1-9 366–0772–00 4 KNOB,CAP:PC/ABS BAYBLEND FR110,SIVER TK1163 366–0772–00
GRAY,0.425 DIA X 0.520 H
10-1-10 366–0771–00 3 KNOB,CAP:PC/ABS BAYBLEND FR110,SILVER TK1163 366–0771–00
GRAY,0.650 DIA X 0.520 H

TDS3000 Series Service Manual 10–5

Mechanical Parts List

7
6
5
4

3
2

11
10
12

Figure 10–2: Exploded view, LCD display

10–6 TDS3000 Series Service Manual

 Mechanical Parts List

Replaceable parts list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
10-2-1 441–2144–00 1 CHASSIS:FRONT,0.050 AL,13.020 X 2.860 0J9P9 441–2144–00
10-2-2 380–1117–00 1 HOUSING,DISPLAY:LCD CARRIER,POLY/ABS TK6179 380–1117–00
10-2-3 337–4148–00 1 SHIELD,ASSY:DISPLAY,5.950 X 4.600,0.079 GLASS 0APF4 337–4148–00
10-2-4 119–5659–01 1 DISPLAY MODULE:LCD,COLOR,640 X 480,6.5 TK00J NL6448AC20–06
DIAG,TFT,6–BIT,0.2 MM PIXEL PITCH
10-2-5 407–4536–00 1 BRACKET,PCB:BACKLIGHT BOARD,1.1330 X 5.4120 TK6179 407–4536–00
X 1.150,POLY/ABS ALLOY BAYBLEND FR–110
10-2-6 174–3827–00 1 CA ASSY,SP:DESCRETE, BACKLIGHT, 22 AWG, 3.5 060D9 174–3827–00
L, 2X1,0.157 CTR, FEMALE, JST BHR–03VS–1 X
2X1,
10-2-7 119–5999–00 1 POWER SUPPLY:INVERTOR BOARD, TK00J 65PWB31
REPLACEMENT FOR LCD 119–5659–00 6.5” LCD
10-2-8 174–3767–00 1 CA ASSY,SP:DESCRETE,BACKLIGHT,IDC,6,26 060D9 174–3767–00
AWG,5.0 L,2MM,1X6,PCB AMP 2–173985–6 X
1X6,JAE IL–Z6
10-2-9 119–5998–00 2 LAMP:CCFL,REPLACEMENT FOR LCD 119–5659–00 TK00J 65LHS–3L
6.5” LCD,W/LEADS
10-2-10 131–6521–00 4 CONTACT,ELEC:EMI,CLIP–ON,0.38 L X 0.500 W (2 TK2647 9760718005
CONTACTS) X 0.45 HIGH,ELECTROLESS NICKEL
PLATE
10-2-11 211–0927–00 2 SCREW,PT:K35–1.57 X 10.0MM,T10,STL,BLACK 0KB01 K35–1.57 X 10 PN PT
STL/BLK
10-2-12 131–6643–00 2 CONTACT,ELEC:GROUNDING,0.169 L,0.320 TK2647 131–6643–00
DEEP,ELECTROLESS NICKEL,TDS3012

TDS3000 Series Service Manual 10–7

Mechanical Parts List

3
2 4

Figure 10–3: Exploded view, main board and disk dive

10–8 TDS3000 Series Service Manual

 Mechanical Parts List

Replaceable parts list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
10-3-1 174–3762–00 1 CA ASSY, SP:FLEX,DISPLAY,FLX,33 AWG,0.5MM 060D9 174–3762–00
CTR,5.0 L,TIN/LEAD PLATED CONDUCTORS X 31
POS,LCD
10-3-2 211–0721–00 4 SCREW,MACHINE:6–32 X 0KB01 ORDER BY
0.375,PNH,STL,CDPL,T–15 TORX DR DESCRIPTION
10-3-3 351–1025–00 1 GUIDE:OPTION MODULE,POLY,ABS TK6179 351–1025–00
ALLY,BAYBLEND FR–110
10-3-4 174–3763–00 1 CA ASSY,SP:FLEX,FLOPPY 1DM20 174–3763–00
DRIVE,FLX,26,1MM,3.600 L,TIN/LEAD PLATED
COPPER CONDUCTORS BOTH ENDS
10-3-5 119–5677–00 1 DISK DRIVE:FLOPPY,3.5 INCH,1.44MB,BLACK,0.5 50356 FD–04HF–2300
INCH HIGH,DSDD,FD–04HF–2300,
10-3-6 671–4077–XX 1 CIRCUIT BD ASSY:MAIN,2CH,100MHZ 80009 671–4077–XX
671–4720–XX 1 CIRCUIT BD ASSY:MAIN BOARD,2 CH,300 MHZ 80009 671–4720–XX
671–4721–XX 1 CIRCUIT BD ASSY:MAIN BOARD,2 CH,500 MHZ 80009 671–4720–XX
671–4078–XX 1 CIRCUIT BD ASSY:MAIN,4 CH,100 MHZ 80009 671–4078–XX
671–4722–XX 1 CIRCUIT BD ASSY:MAIN BOARD,4 CH,300 MHZ 80009 671–4722–XX
671–4023–XX 1 CIRCUIT BD ASSY:MAIN BOARD,4 CH,500 MHZ 80009 671–4023–XX

TDS3000 Series Service Manual 10–9

Mechanical Parts List

3 4 6
2
3
5
1
7

8 3

9
16 12

3
11
14 13 10

15

Figure 10–4: Exploded view, circuit board assembly and fan

10–10 TDS3000 Series Service Manual

 Mechanical Parts List

Replaceable parts list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
10-4-1 679–4090–00 1 CKT BD SUBASSY:POWER SUPPLY,389–2389–XX 80009 679–4090–00
WIRED
10-4-2 441–2145–00 1 CHASSIS:REAR,0.050 AL,12,795 X 0J9P9 441–2145–00
3.620,CHROMATE
10-4-3 211–0721–00 7 SCREW,MACHINE:6–32 X 0KB01 ORDER BY
0.250,PNH,STL,CDPL,T–15 TORX DR DESCRIPTION
10-4-4 174–4068–00 1 CA ASSY,SP:PRINTER,POWER,22AWG 060D9 174–4068–00
10-4-5 174–3765–00 1 CA ASSY,SP:RIBBON,PRINTER,IDC,4.0 L,28 060D9 174–3765–00
AWG,2X13,0.1CTR,RCPT X 25
POS,DSUB,FEMALE,W/0.120 DI
10-4-6 131–0890–01 2 CONN,HARDWARE:DSUB,JACK SCREW,4–40 X 00779 205818–2
0.312 L HEX HD,STL CD PL,W/O WASHERS & NUT,
10-4-7 210–0054–00 2 WASHER,LOCK:#4 SPLIT,0.025 THK STL CD PL 86928 ORDER BY
DESCRIPTION
10-4-8 119–0420–00 1 FILTER,RFI:6A,250VAC,400HZ 0GV52 FN323B–6/01
10-4-9 119–5848–00 1 FAN,DC:TUBEAXIAL,24V,2.09W,2450 RPM,41 060D9 119–5848–00
CFM,92MM X 25MM,33 DBA,3610KL–05W–B30–P00,
10-4-10 174–3764–00 1 CABLE ASSEMBLY:DESCRETE,LINE INPUT 060D9 174–3764–00
SENSE,PSC,3,18 AWG,1,26 AWG,4.5 L,1X3,0.156
CTR,RCPT X 2,0.2
10-4-11 119–5688–00 1 POWER SUPPLY:40W,AC–DC,90–264 VAC IN,15V TK1955 NAN40–7615
2.6A OR 3.3A,20 CFM,NAN40–7615,3 X 5,
10-4-12 211–0711–00 4 SCR,ASSEM WSHR:6–32 X 0.250,PNH,STL, 0KB01 ORDER BY
CDPL,T–15 TORX DESCRIPTION
10-4-13 407–4530–00 1 BRACKET:POWER SUPPLY SUPPORT,0.050 0J9P9 407–4530–00
AL,5.150 X 0.785,CHROMATE
10-4-14 260–2443–00 1 SWITCH,PWR:DPDT,PUSH PUSH ALT ACT,PC PINS 31918 NE18–00–EE–N–47–0
1A (130238)
10-4-15 384–1813–00 1 SHAFT:BAYBLEND FR110,SILVER GREY TK6179 384–1813–00
10-4-16 174–3766–00 1 CA ASSY, SP:DESCRETE,POWER 060D9 174–3766–00
SUPPLY,LDC,24AWG,4.5 L,1X16,0.1CTR,MTA AMP
1–644512–6 X 5.0 L,1X1

TDS3000 Series Service Manual 10–11

Mechanical Parts List

6 5

Figure 10–5: Exploded view, rear case half

10–12 TDS3000 Series Service Manual

 Mechanical Parts List

Replaceable parts list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
10-5-1 367–0498–00 1 HANDLE,CARRYING:14.5740 X 6.3230 7X318 367–0498–00
10-5-2 200–4415–00 1 COVER:OPTION MODULE OPENING,5.1440 X 0.910 TK6179 200–4415–00
X 0.9950,PC/ABS,FR110,BLUE
10-5-3 211–0722–00 1 SCREW,MACHINE:6–32 X 0KB01 ORDER BY
0.250,PNH,STL,CDPL,T–15 TORX DR DESCRIPTION
10-5-4 436–0371–00 1 TRAY,ACCESSORY:BATTERY TK6179 436–0371–00
COMPARTMENT,POLYSTYRENE,TDS3012
10-5-5 200–4394–00 2 COVER,HUB:POLY,1.60 DIAMETER 7X318 200–4394–00
10-5-6 401–0785–00 2 HUB ASSY:NYLON 7X318 401–0785–00
10-5-7 343–1213–00 1 CLAMP,PWR CORD:POLYMIDE TK1163 ORDER BY
DESCRIPTION
10-5-8 050–3267–00 1 CASE,REAR ASSY:INCLUDES REAR DOOR,REAR TK6179 050–3267–00
FOOT CASE,CUSHION
10-5-9 348–1582–00 2 FOOT ASSY:FRONT,HINGED,HOUSING 7X318 348–1582–00
380–1118–00,FRONT FOOT 348–1557–00,

Accessories list

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
063–3141–XX 1 SOFTWARE PKG 80009 063–3141–00
200–4416–00 1 COVER:FRONT,PROTECTIVE 7X318 200–4416–00
(SEE FIGURE 10-1-7)
_________ 2 P3010 PASSIVE PROBE,10X,100MHZ,W/ACCY ORDER BY DESC
(TDS3012,TDS3014 ONLY)
_________ 2 P6139A PASSIVE PROBE,10X,300&500MHZ, ORDER BY DESC
W/ACCY (TDS3032,TDS3034,TDS3052,TDS3054
ONLY)
436–0371–00 1 TRAY,ACCESSORY:BATTERY COMPARTMENT TK6179 436–0371–00
020–2263–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2263–00
ENGLISH,TDS30XX
020–2264–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2264–00
FRENCH,TDS30XX
020–2265–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2265–00
GERMAN,TDS30XX
020–2266–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2266–00
ITALIAN,TDS30XX
020–2267–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2267–00
SPANISH,TDS30XX
020–2268–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2268–00
PORTUGUESE,TDS30XX

TDS3000 Series Service Manual 10–13

Mechanical Parts List

Accessories list (cont.)

Fig. &
index Tektronix Serial no. Serial no.
number part number effective discont’d Qty Name & description Mfr. code Mfr. part number
020–2269–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2269–00
KOREAN,TDS30XX
020–2270–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2270–00
SIMPLIFIED CHINESE,TDS30XX
020–2271–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2271–00
TRADITIONAL CHINESE,TDS30XX
020–2272–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2272–00
JAPANESE,TDS30XX
020–2273–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2273–00
ENGLISH,TDS3TRG/TDS3FFT/TDS3VID
020–2274–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2274–00
FRENCH,TDS3TRG/TDS3FFT/TDS3VID
020–2275–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2275–00
GERMAN,TDS3TRG/TDS3FFT/TDS3VID
020–2276–00 1 MANUAL,TECH:SET,USER & TK2548 020–2276–00
REFERENCE,ITALIAN,TDS3TRG/TDS3FFT/TDS3VID
020–2277–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2277–00
SPANISH,TDS3TRG/TDS3FFT/TDS3VID
020–2278–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2278–00
PORTUGUESE,TDS3TRG/TDS3FFT/TDS3VID
020–2279–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2279–00
KOREAN,TDS3TRG/TDS3FFT/TDS3VID
020–2280–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2280–00
SIMPLIFIED CHINESE,TDS3TRG/TDS3FFT/TDS3VID
020–2281–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2281–00
TRADITIONAL CHINESE,TDS3TRG/TDS3FFT/
TDS3VID
020–2282–00 1 MANUAL,TECH:SET,USER & REFERENCE, TK2548 020–2282–00
JAPANESE,TDS3TRG/TDS3FFT/TDS3VID
_________ 1 TDS3TRG ADVANCED TRIGGER APP MODULE ORDER BY DESC
_________ 1 TDS3FFT FFT APPLICATION MODULE ORDER BY DESC
_________ 1 TDS3VID EXTENDED VIDEO APP MODULE ORDER BY DESC
_________ 1 TDS3GM GPIB/RS232 COMM MODULE ORDER BY DESC
_________ 1 TDS3VM VGA/RS232 COMM MODULE ORDER BY DESC
_________ 1 TDS3CHG EXTERNAL BATT CHARGER ORDER BY DESC
_________ 1 TDS3BAT BATTERY PACK ORDER BY DESC
_________ 1 AC3000 OSC SOFT CARRY CASE ORDER BY DESC
_________ 1 RM3000 RACK MOUNT KIT ORDER BY DESC
_________ 1 AD007 GPIB TO LAN ADAPTER ORDER BY DESC
_________ 1 WSTRO WAVESTAR SOFTWARE FOR OSC ORDER BY DESC
071–0382–XX 1 MANUAL,TECH:SEVICE,TDS30XX TK2548 071–0382–XX

10–14 TDS3000 Series Service Manual