harman/kardon

SUB-TS7
(HKTS 7 SUBWOOFER)

SERVICE MANUAL

harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev1 6/2004
SUB-TS7 harman/kardon

CONTENTS

BASIC SPECIFICATIONS . . . . . . . . . . . . ……………………………………. . . . 1

DETAILED SPECIFICATIONS . . . . . . . . . . . . . …. . . . . . . . . ………………….. 2
CONTROLS & CONNECTIONS………... . . . . . . . . . . . ………………. ……….. 4
SPEAKER CONNECTIONS……………………….………..……. . . .. . .. . . . . . .. 6
OPERATION……. . . . . .. . . . . . . . .. ………………………………………………..9
BASIC TROUBLESHOOTING GUIDE . . . . . . . . ………………………………...10
UNIT EXPLODED VIEW. . . . …………… ……………. .. ………... . . .. .. .. . … . 11
AMPLIFIER EXPLODED VIEW. . . . ………………... . .. ………... . . .. . . .. . … . 12
TEST SET-UP AND PROCEDURE. . . . . . . . ………………………….………...13
BLOCK DIAGRAM . . . . . . . . . . . . . .. . . . . . . ……………… . . . . . . .. . . . . . . 14
PCB DRAWINGS. .. . . . . . . . . . . . . . .. . . . . ……… . …………. . . . . .. .. . . . . . 15
ELECTRICAL PARTS LIST …………. .... . .. . . . . ………….…….. . . .. .. . . . . 19
SEMICONDUCTOR PINOUTS . . . .. .. .. .. . . . .. . ……………………..………. .23
SCHEMATIC DIAGRAMS . . . . . . . . .. .. .. .. . . . .. . ……………………………. .24
PACKAGING. .. . . . . . . . . . . . . . .. . . . ............................................................. 26

SPECIFICATIONS

Amplifier Power (RMS) 100 Watts

Driver 10" woofer, Bass Reflex Enclosure
Inputs Stereo Line Level, dedicated Subwoofer (LFE)
and Speaker Level with gold-plated binding posts

Outputs Speaker Level with gold-plated binding posts

Frequency Response 35Hz – 120Hz (Filter switch ON)
35Hz – 450Hz (Filter switch OFF)

Dimensions (H x W x D) 18-7/8" x 13-3/8" x 13-3/8"

479mm x 340mm x 340mm

Weight 33 lb/15kg

Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications
unless otherwise stated.

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 SUB-TS7 harman/kardon

SUB-TS7 100W Powered Sub/ Plate Amp

LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes

US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation

Nonimal QA Test
Parameter Unit Conditions Notes
Specification Limits
Amp Section

Type (Class AB, D, other) AB n/a n/a

Load Impedance (speaker) 4 Ohms n/a Nominal
Rated Output Power 100 Watts 75 50 - 250 Hz, 1 input driven, limiter off
THD @ Rated Power 0.08 % 0.1 22k filter
THD @ 1 Watt 0.15 % 0.5 22k filter
DC Offset 5 mV-DC 30 @ Speaker Outputs
Measured at the speaker at speaker output
Damping factor >100 n/a 30 Measured at amplifier board terminals on the amp board.

Input Sensitivity
Input Frequency 50 Hz n/a Nominal Freq.
Line (L&R) Input 220 mVrms 154 - 308 To Rated Power Single input driven
SUB (LFE) Input 125 mVrms 87 - 175 To Rated Power SUB (LFE) input driven only
Speaker/Hi Level Input 2.2 Vrms 1.5 - 3.0 To Rated Power (20 dB below Line In), Single input driven

Hi Level Max. Input Voltage 32 Vrms 30 Nominal Freq., Min. Volume

Signal to Noise
SNR-A-Weighted 100 dB 85 relative to rated power A-Weighting filter
SNR-unweighted 90 dB 80 relative to rated power 22k filter
SNR rel. 1W-unweighted 65 dB 60 relative to 1W Output 22k filter
Volume @max, using RMS reading
Residual Noise Floor 1.2 mVrms 3.0 DMM/VOM (or A/P)

Volume @max, w/ A/P Swept Bandpass

Residual Noise Floor 0.8 mVrms 2.0 Measurement (Line freq.+ harmonics)

Input Impedance
Line Input (L, R,LFE) 10K ohms n/a Nominal
Speaker/Hi Level Input 4.7K ohms n/a Nominal

Filters
L&R Fixed Low-Pass Filter 170 Hz 150 - 200 @ -6dB ref. 100Hz 2nd order fixed
SUB (LFE) Low pass Filter 270 Hz 240 - 300 @ -3dB ref. 100Hz 2nd order fixed
Subsonic filter (HPF) 3rd Order 28 Hz 22 - 28 @ -3dB ref. 30Hz 3rd order fixed

Limiter
THD at Max. Output Power 2.0 % 5.0

Features
Auto - On -Off Selection Switch YES functional Refer to ATO section
Phase Switch 0-180 deg functional
Filter On/Off Switch YES functional
Volume Pot Taper (Lin/Log) LOG functional A Taper
Speaker Out YES functional Binding post connector L&R
2-Color LED power indicator YES functional Blue: On, Amber: Stand-by
Power Switch YES functional
Fuse Holder YES functional

Input Configuration
Line In (L,R) YES functional Dual RCA jack
SUB (LFE) YES functional RCA jack
Speaker/Hi Level In YES functional Binding post connector L&R

Signal Sensing (ATO)

Auto-Turn-On (yes/no) YES functional Auto - on selection switch in Auto
ATO Input test frequency 50 Hz n/a Auto - on selection switch in Auto
ATO Level Line & SUB Input 4.0 mV 2.0 - 6.0 Auto - on selection switch in Auto
ATO Level Speaker in 40 mV 25 - 55 Auto - on selection switch in Auto
Amp connected and AC on, then input
ATO Turn-on time 5 ms functional signal applied
Time before muting, after signal is
ATO Turn-OFF Time 15 minutes 10 - 20 removed

Power on Delay time 3 sec. functional AC Power Applied

Transients/Pops
ATO Transient 5 mV-peak 10 @ Speaker Outputs
Turn-on Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from OFF to ON

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 SUB-TS7 harman/kardon

Nonimal QA Test
Parameter Unit Conditions Notes
Specification Limits
Turn-off Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from ON to OFF

Efficiency
Maximum allowable input power under nominal
input voltage and frequency, in stand-by mode (HOT
Stand-by Input Power 10 Watts 12 @ nom. line voltage or COLD operation).
Power Consumption @ rated powe 170 Watts 200 @ nom. line voltage 100 Watts @ 4.0 ohms and nominal line voltage

Protection
Amplifier should resume operation after short circuit
Short Circuit Protection YES functional Direct short at output condition is removed.
Any user accessible metal parts should always
remain at 65 degree C or less for domestic version
Thermal Protection YES functional or 55 degree C or less for EU version.
DC Offset Protection YES functional DC present at Speaker Out leads Relay or crowbar (for driver/fire protection),
Primary Fuse Rating
USA-Domestic (120V) 2.5 Amps n/a Type-T or Slo Blo User-replacable fuse with UL/SEMCO rated holder.

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SUB-TS7 harman/kardon
SUB-TS7 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

SUBWOOFER
LEVEL
SUB-TS7 For use with
HKTS 7 System

¡
FILTER
ON
™ OFF
MIN MAX

C A U TIO N
£ ON

AUTO
R ISK OF ELEC TR IC SH O C K
D O NO T OPE N
PHASE

¢
REVERSE

NORMAL

∞
SUB R L
LINE
LEVEL
IN
§

"WARNING: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,

H L REPLACE ONLY WITH SAME TYPE T 2.5A L/250 VOLT FUSE"

I "AVERTISSEMENT: UTILISEZ UN FUSIBLE DE RECHANGE DE MEME

TYPE T 2.5A L/250V"
G
H
¶ L
E POWER
V
E
L R AC 120V~60Hz

• OUT IN
ª
IMPORTANT: CONNECT STRIPED WIRE
TO RED ( ) SPEAKER TERMINAL.
‚

¡ Subwoofer-Level Control ∞ Line-Level Subwoofer (SUB) Input ª Master Power Switch

™ High-Cut (Low-Pass) Filter Switch § Line-Level Full-Range Inputs ‚ AC Power Cord
£ Music-Sense On/Off Switch ¶ Speaker-Level Outputs
¢ Phase Switch • Speaker-Level Inputs

¡ Subwoofer-Level Control: Volume inefficiency and distortion. Engage this filter place itself in the Standby mode, depending on
may be adjusted using the Subwoofer- when using the Speaker-Level Inputs •, whether it is receiving an audio signal. When
Level Control. Turn the control clockwise or when using the Line-Level Full-Range this switch is placed in the ON position, the
to increase the SUB-TS7’s volume, or Inputs §, unless your receiver or processor SUB-TS7 will remain on, whether or not it is
counterclockwise to decrease it. processes its line-level output using a low- receiving an audio signal.
™ High-Cut (Low-Pass) Filter Switch: pass filter. The filter has no effect when the An LED located on top of the SUB-TS7 indi-
Placing this switch in the ON position acti- SUB Input ∞ is used. cates whether the SUB-TS7 is in the ON or
vates circuitry that cuts out all audio input £ Music-Sense On/Off Switch: When STANDBY state when used with the Music-
signals above 120Hz. This allows the SUB- placed in the AUTO position, and when the Sense On/Off Switch £ in the AUTO
TS7 to focus its power on reproducing the Master Power Switch ª is turned on, the position. The LED is lit blue to indicate that
low-frequency portion of the signal, avoiding SUB-TS7 will automatically turn itself on or the SUB-TS7 is receiving an audio signal

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SUB-TS7 harman/kardon
SUB-TS7 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

and is turned on, and the LED is lit amber to § Line-Level Full-Range Inputs: Connect ª Master Power Switch: Place this
indicate that no signal is being received and the line-level subwoofer output or preamp out- switch in the “•” position to power-on the
the SUB-TS7 is in Standby mode. put(s) of your receiver or amplifier to these SUB-TS7 subwoofer. The SUB-TS7 will then
When the Music-Sense On/Off Switch £ inputs. If your receiver does not have a sepa- be either in the Standby mode or completely
is in the ON position, the LED will be rate subwoofer output, use a Y-adapter (not on, depending on the position of the Music-
lit blue, whether or not an audio signal is supplied) to bridge the receiver’s preamp out- Sense On/Off Switch £.
present. put to the main amp input for that channel, ‚ AC Power Cord: Make sure to plug this
and connect the long end of the adapter cord into an active, unswitched electrical out-
When the Master Power Switch ª is
to the corresponding line-level input on the let for proper operation of the SUB-TS7.
turned off, the LED goes dark, no matter
SUB-TS7. If your receiver has only a single The cord should not be plugged into the
which position the Music-Sense On/Off
subwoofer output, you may connect it to accessory outlets found on some audio
Switch £ is in.
either the left or right line-level input on the components.
¢ Phase Switch: This switch determines SUB-TS7, and no Y-adapter is needed.
whether the SUB-TS7 subwoofer’s piston-
¶ Speaker-Level Outputs: If you are
like action moves in and out in phase with
using the Speaker-Level Inputs • on the
the main speakers. If the speakers were to
SUB-TS7, you should connect these binding-
play out of phase, the sound waves pro-
post terminals to your front left and right
duced by the subwoofer would be cancelled
speakers, remembering to maintain polarity
out, reducing bass response. This phenome-
by connecting the (+) terminal on the SUB-
non depends in part on the relative place-
TS7 subwoofer to the (+) terminal on the
ment of the speakers in the room. In most
speaker, and the (–) terminal on the SUB-
cases, the Phase Switch ¢ should be left
TS7 subwoofer to the (–) terminal on the
in the NORMAL position. However, it
speaker. If you are not using the Speaker-
does no harm to experiment with the Phase
Level Inputs •, then connect your front
Switch ¢, and you may leave it in the
left and right speakers directly to your receiver
position that maximizes bass response.
or amplifier. See pages 9 through 12 for
∞ Line-Level Subwoofer (SUB) Input: further information on speaker connections.
Connect the subwoofer output of a receiver
• Speaker-Level Inputs: Connect these
with digital surround sound decoding, such
binding-post terminals to the main left and
as Dolby* Digital or DTS®, to this input. This
right speaker terminals of your receiver or
input bypasses the SUB-TS7’s internal
amplifier, if your receiver or amplifier does
crossover circuitry, and should only be used
not have a line-level subwoofer output.
with a filtered signal. If your receiver does not
Remember to maintain polarity by connecting
have digital decoding, you should use the
the (+) terminal on the receiver/amplifier to the
Line-Level Full-Range Inputs § instead.
(+) terminal on the SUB-TS7 subwoofer, and
the (–) terminal on the receiver/amplifier to the
(–) terminal on the SUB-TS7 subwoofer.

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6 SUB-TS7 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS
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SUB-TS7 harman/kardon
SPEAKER CONNECTIONS

Dolby* Digital or DTS® (or Other Center

Front Front
Digital Surround Mode) Connection Left – + Right
USE THIS INSTALLATION METHOD FOR – + – +
DOLBY DIGITAL, DTS OR OTHER DIGITAL
SURROUND PROCESSORS: SUB-TS7 Subwoofer
LINE LEVEL IN
Use the line-level input jack marked SUB
SUB R L
∞ for the Low-Frequency Effects channel.
Connect this jack to the subwoofer output
or LFE output on your receiver or amplifier.
Connect each speaker to the corresponding
speaker terminals on your receiver or
amplifier.
Make sure you’ve configured your surround Front Front
sound processor for “Subwoofer On.” The Left Right
front left, front right, center and surround
speakers should all be set to “Small.” SUB/LFE
Out
When all connections have been made, plug
Surround Surround
the AC power cord on the subwoofer into Left Center Right
an AC outlet.
Surround Surround
Left Right
– + Receiver – +

10 SPEAKER CONNECTIONS
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SUB-TS7 harman/kardon
SPEAKER CONNECTIONS

Dolby Pro Logic* Front

Center
Front
(Non-Digital) – Line Level Left – + Right
USE THIS INSTALLATION METHOD FOR – + – +
DOLBY PRO LOGIC APPLICATIONS (NOT
SUB-TS7
DOLBY DIGITAL, DTS OR OTHER DIGITAL Subwoofer
PROCESSING), WHERE THE RECEIVER/ Line-Level
PROCESSOR IS EQUIPPED WITH A SUB-
R L
WOOFER OUTPUT, OR A VOLUME-
CONTROLLED PREAMP (LINE-) LEVEL
OUTPUT:
Use the supplied RCA-type interconnect
cable to connect the line-level subwoofer Front Front
output on your receiver or amplifier to either Left Right
the left or right Line-Level Full-Range
Input § on the SUB-TS7 subwoofer. Use SUB/LFE
Out
both the left and right inputs on the sub-
Surround Surround
woofer if your receiver or processor has Left Center Right
both left and right line-level outputs. In that
case, you will need to supply a second Surround Surround
interconnect cable. Left Right
If your receiver is equipped with line-level out- – + Receiver – +
puts but does not have a separate subwoofer
output, use a Y-adapter (not supplied) to
bridge the receiver’s preamp output to the
main amp input for that channel, and connect
the long end of the adapter to the corre-
sponding line-level input on the SUB-TS7.
IMPORTANT: Do not use the SUB Input
∞ on the subwoofer with Dolby Pro Logic
processors.
If your receiver/processor has a built-in low-
pass-crossover filter for the subwoofer out-
put, you may use the SUB Input ∞ to
bypass the subwoofer’s internal crossover.
Connect each speaker to the corresponding
speaker terminals on your receiver or amplifier.
Make sure that you have configured your
surround sound processor for “Subwoofer
On.” The front left, front right, center and
surround speakers should all be set to
“Small.”
When all connections have been made, plug
the AC power cord on the subwoofer into
an AC outlet.

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SUB-TS7 harman/kardon
SPEAKER CONNECTIONS

Dolby Pro Logic

Front Center Front
(Non-Digital) – Speaker Level – +
Left Right
USE THIS INSTALLATION METHOD FOR – + – +
DOLBY PRO LOGIC APPLICATIONS (NOT
DOLBY DIGITAL, DTS OR OTHER DIGITAL
PROCESSING), WHERE THE RECEIVER/
PROCESSOR DOES NOT HAVE A SUB-
WOOFER OUTPUT, OR A VOLUME- SUB-TS7
CONTROLLED PREAMP (LINE-) LEVEL Subwoofer
OUTPUT:
Connect your receiver or amplifier’s front
left and right speaker terminals to the left H L
I
and right Speaker-Level Input • termi- G
H
nals on the SUB-TS7 subwoofer that are L
marked “High Level In.” Connect the left and E
V
right Speaker-Level Output ¶ terminals E
L R

on the SUB-TS7 subwoofer that are marked

“High Level Out” to the corresponding ter-
minals on the back of your front left and right
speakers.
Connect your receiver or amplifier’s center
Receiver
and surround left and right speaker termi-
nals to the corresponding terminals on the
Front Left Center Front Right
back of your center, and surround left and
right speakers.
When all connections have been made,
plug the AC power cord on the subwoofer
into an AC outlet. Surround Left Surround Right

Surround Surround
Left Right
– + – +

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SUB-TS7 harman/kardon
OPERATION
Move the Master Power Switch ª
(marked Power) to the “•” (On) position. Additional Bass Adjustments
The SUB-TS7 subwoofer will automatically Volume
In addition to the volume adjustments
turn itself on or go into Standby mode, Volume can be adjusted using the described above, the SUB-TS7 subwoofer
depending on whether or not a signal is Subwoofer-Level Control ¡, as includes a Phase Switch ¢ and a Filter
being sent to it by your receiver or surround shown. Turn the control knob clockwise Switch ™ that can be used to adjust the
processor, and provided that the Music- to increase the volume of the subwoofer, bass response to suit your listening environ-
Sense On/Off Switch £ is moved down and counterclockwise to decrease the ment or taste.
so that it is in the AUTO position. subwoofer’s volume.
In most situations, the Phase Switch ¢
When your receiver or amplifier is off, or is
Subwoofer should be left in the NORMAL position.
not sending program material to the sub- Level
If you suspect that the subwoofer is playing
woofer, the subwoofer will be in Standby
out of phase with the other speakers, which
mode and the LED Indicator on the top of
would tend to diminish bass response, try
the subwoofer will turn amber. When the MIN MAX
placing this switch in the REVERSE
subwoofer senses an audio signal, it will
Subwoofer position. There is no harm in experimenting,
automatically turn itself on and the LED Level and you may return the switch to the
Indicator will turn blue. If the subwoofer does
NORMAL position at any time. If you
not sense a signal after approximately twenty
rearrange your room and reposition the
minutes, it will automatically go into Standby
speakers, it would be a good idea to check
mode. MIN MAX

whether they are in phase by flipping this

When the Music-Sense On/Off Switch £ switch.
is switched to the ON position, the sub-
The High-Cut (Low-Pass) Filter Switch
woofer will remain on, whether or not
™ limits the frequencies of the audio signal
program material is playing, and the LED
inputted to the subwoofer to the low fre-
Indicator will remain lit blue.
quencies that the subwoofer reproduces
If you’ll be away from home for an extended best. This allows the subwoofer to perform
period of time, or if the subwoofer will not be more efficiently, and with superior bass
used, switch the Master Power Switch ª reproduction, minimizing distortion that might
to the OFF position. occur if the subwoofer attempted to repro-
duce higher frequencies. This switch should
be left in the ON position, except:
1. When the SUB Input ∞ is being used,
in which case it has no effect, or
2. When the Speaker-Level Inputs • or
the Line-Level Full-Range Inputs § are
being used with a crossover or filter aboard
the receiver or processor.
In these two circumstances, place the switch
in the OFF position.

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OPERATION 13
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SUB-TS7 harman/kardon
TROUBLESHOOTING
SYMPTOM SOLUTION

If there is no sound from • Check that receiver/amplifier is on and a source is playing.

any of the speakers: • Check that the powered subwoofer is plugged in and its Master Power Switch ª is switched on to the “•” position.
• Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected.
Make sure none of the speaker wires are frayed, cut, punctured, or touching other wires.
• Review proper operation of your receiver/amplifier.
If there is no sound coming • Check the “Balance” control on your receiver/amplifier.
from one speaker: • Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected.
Make sure none of the speaker wires are frayed, cut or punctured, and that no wires are touching each other.
• In Dolby Digital or DTS mode, make sure that the receiver/processor is configured so that the speaker in question is enabled.
• Turn off all electronics and switch the speaker in question with one of the other speakers that is working correctly. Turn
everything back on, and determine whether the problem is in the same place: i.e., the speaker that was working previously
now has no sound and the speaker that was not working now sounds fine; or whether it has moved: i.e., the speaker that
was not working still has no sound and the speaker that was working is still fine. If the problem is in the same place, the
source of the problem is most likely with your receiver or amplifier, and you should consult the owner’s manual for that product
for further information. If the problem has followed the speaker, consult your dealer for further assistance or, if that is not
possible, visit our Web site at www.harmankardon.com for further information.
If there is no sound from • Check all wires and connections between receiver/amplifier and speaker. Make sure all wires are connected.
the center speaker: Make sure none of the speaker wires are frayed, ccut, punctured, or touching other wires.
• If your receiver/processor is set in Dolby Pro Logic mode, make sure the center speaker is not in phantom mode.
• If your receiver/processor is set in Dolby Digital or DTS mode, make sure the receiver/processor is configured so that
the center speaker is enabled.
If the system plays at low • Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected.
volumes but shuts off as Make sure none of the speaker wires are frayed, cut, punctured, or touching other wires.
volume is increased: • If more than one pair of main speakers is being used, check the minimum impedance requirements of your receiver/amplifier.
If there is low (or no) bass • Make sure the SUB ¡ or Line-Level Inputs § of the SUB-TS7 subwoofer and SUB or LFE output of your receiver
output: or amplifier are properly connected by the RCA-type interconnect cable.
• If you are using the SUB-TS7’s Speaker-Level Inputs •, check your speaker cables to make sure they are all
connected; that none of the wires are frayed, cut, punctured, or touching other wires; and that you have maintained the
correct polarity by connecting positive terminals to positive terminals, and negative terminals to negative terminals.
• Make sure the subwoofer is plugged into an active electrical outlet and its Master Power Switch ª is
switched on to the “•” position.
• Check the speaker setup (bass management) settings in your A/V receiver or processor to make certain that the front,
center and surround speakers are configured for “Small,” and that the subwoofer is set for “Yes” or “On.”
If there is no sound from • Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected. Make sure
the surround speakers: none of the speaker wires are frayed, cut, punctured, or touching other wires.
• Review proper operation of your receiver/processor and its surround sound features.
• Make sure the movie or TV show you are watching is recorded in a surround sound mode. If it is not, check to see
whether your receiver/processor has other surround modes you may use.
• In Dolby Digital or DTS mode, make sure your receiver/processor is configured so that the surround speakers are enabled.
• Review the operation of your DVD player and the jacket of your DVD to make sure that the DVD features the desired
Dolby Digital or DTS mode, and that you have properly selected that mode using both the DVD player’s menu
and the DVD disc’s menu.

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14 TROUBLESHOOTING
SUB-TS7 harman/kardon

Ref# Description Part Number Qty

1 Amplifier screw 352-AM04020D210 10

2 SUB-TS7 Amplifier Not for Sale 1
3 Port Tube Not for Sale 1
4 SUB-TS7 Cabinet Not for Sale 1
5 Logo 316-AG-00557 1
6 LED Not for Sale 1
7 Grille Not for Sale 1
8 Logo 316-AL-00553 1
9 10" woofer 25PF12DZB-DW01 1
10 Woofer screw 352-FM04020D605 5
11 Foot Pad 320-EVA-00057 4
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(See Mechanical Parts List on Pages 21-22)

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 SUB-TS7 harman/kardon

Test Set Up and Procedure

Equipment needed:
• Function/signal generator/sweep generator
• Integrated Amplifier
• Multimeter
• Speaker cables

Initial Control Settings:

• Power Switch OFF; Filter OFF
• Level MIN (Full CCW)
• Phase, Auto/On switches do not matter

General Unit Function (UUT = Unit Under Test)

1) From the signal generator, connect one line level (RCA) cable to the Subwoofer Line Level Input jacks L/R
on the UUT. Use a Y-cable from a mono source if necessary to connect to both inputs. Do not connect to
the single, purple SUB input.
2) Turn on generator; adjust to 75mV, 50 Hz.
3) Plug in UUT; turn the power switch ON. Turn LEVEL control full clockwise (MAX)
4) LED should turn from Amber to Blue (on top of UUT); immediate and vigorous bass response should be
heard and felt from port tube opening.
5) Turn off generator, turn LEVEL control full counterclockwise (MIN), and disconnect RCA cable.
6) Connect one pair of speaker cables to Speaker Level input terminal (IN) on UUT. Cables should be
connected to an integrated amplifier fed by the signal generator.
7) Turn on generator and adjust so that speaker level input at the amplifier is 1.6V, 50 Hz. Turn LEVEL control
full clockwise.
8) LED should turn from Amber to Blue; immediate and vigorous bass response should be heard and felt from
the port tube opening.

Sweep Function

1) Follow steps 6-8 above, using a sweep generator as a signal source.

2) Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or
any other noises. If any unusual noises are heard, remove woofers and test.

Driver Function

1) Remove woofer from cabinet; detach + and - wire clips.

2) Check DC resistance of woofer; it should be 3.0 ohms ±10%
3) Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier
fed by a signal generator. Turn on generator and adjust so that speaker level output is 5.0V.
4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises.

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SUB-TS7 120V Electrical parts list

Part number Description Qty Reference Designator

PREAMP PCB

Resistors

110-12472j52 resistor 4.7K 1/2W ± 5% CF 52mm 2 R201,202

110-16102j26 resistor 1K 1/6W ± 5% CF 26mm 4 R213,214,215,254
R209,212,216,217,218,220,221,222,225,228,229,230,
110-16103j26 resistor 10K 1/6W ± 5% CF 26mm 18
232,235, 240,248,260,270
110-16104j26 resistor 100K 1/6W ± 5% CF 26mm 3 R231,263,266
110-16105j26 resistor 1M 1/6W ± 5% CF 26mm 1 R259
110-16122j26 resistor 1.2K 1/6W ± 5% CF 26mm 1 R265
110-16124j26 resistor 120K1/6W ± 5% CF 26mm 1 R233
110-16151j26 resistor 150Ω1/6W ± 5% CF 26mm 1 R253
110-16154j26 resistor 150K 1/6W ± 5% CF 26mm 1 R252
110-16182j26 resistor 18K 1/6W ± 5% CF 26mm 1 R262
110-16203j26 resistor 20K 1/6W ± 5% CF 26mm 2 R237,238
110-16205j26 resistor 2M 1/6W ± 5% CF 26mm 2 R257
110-16223j26 resistor 22K 1/6W ± 5% CF 26mm 3 R247,255,256
110-16273j26 resistor 27K 1/6W ± 5% CF 26mm 2 R226,227
110-16472j26 resistor 4.7K 1/6W ± 5% CF 26mm 3 R200,207,258
110-16473j26 resistor 47K 1/6W ± 5% CF 26mm 5 R219,249,250,251,264
110-16512j26 resistor 5.1K 1/6W ± 5% CF 26mm 2 R210,211
110-16513j26 resistor 51K 1/6W ± 5% CF 26mm 2 R223,224
110-16752j26 resistor 7.5K 1/6W ± 5% CF 26mm 1 R234
110-16913j26 resistor 91K 1/6W ± 5% CF 26mm 4 R203,204,205,206
115-h503a103 variable resistor RV16AE-20B2-15K-A54-104(A50K) 1 VR201

Capacitors

129-a224j633 metalize 0.22uF 63V ±5% MSC 1 C218

130-2b221k503 disc capacitor 220P 50V ±10% 12 C200,204,205,207,208,210,211,212,214,220,230,237
130-2b470k503 disc capacitor 47P 50V ±10% 1 C229
130-2f104z503 disc capacitor 0.1U 50V +80/-20% 8 C232,242,244,245,246,252,254,256
132-183j503 mylar capacitor 0.018uF 50V ±5% 1 C223
132-223ja03 mylar capacitor 0.022uF 100V ±5% 1 C215
132-473j503 mylar capacitor 0.047U 50V ±5% 1 C224
132-563j503 mylar capacitor 0.056U 50V ±5% 1 C216
132-823j503 mylar capacitor 0.082U 50V ±5% 1 C217
135-3105m50 electrolytic 1U 50V ±20% 10 C201,202,209,213,219,231,241,243,251,253
135-3107m16 electrolytic 100uF 16V ±20% 1 C234
135-3226m50 electrolytic 22U 50V ±20% 1 C225
135-3227m16 electrolytic 220U 16V ±20% 1 C233
129-a154j633 Mylar capacitor 0.15U 63V ±5% MSC 2 C221,222

Semiconductors

192-027c1815gr Transistor 2SC1815GR NPN 3 Q201,206,207,208

197-131n4148 diode 1N4148 26mm 11 D201,202,203,204,205,206,207,208,214,215,216
199-15000335 zenerdiode 3.3V 1/2W 52mm 1 D213
190-06m4558d I.C. OPA 4558D Dual Op-Amp 1 U203
190-16tl074cn I.C TL074CN ST Quad Op-Amp 2 U201,202
162-50332003 wire 2PIN 330mm RED 1 D209

Miscellaneous

174-0rca313v RCA JACK RCA-313G V/R/W 1 JK201

174-20810360g JACK SPK JK BP 8PIN SH0810360G US1.35 1 JK202
175-1b08v01 wire connector 8 PIN PITCH=2.0mm 1
180-tms7210v SWITCH SLIDE 6PIN MS7210V 3 SW201,202,203

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Part number Description Qty Reference Designator

MAIN PCB

Resistors

110-14472j26 resistor 4.7K 1/4W ±5% CF 26mm 2 R147,150

110-14681j26 resistor 680Ω1/4W ±5% CF 26mm 1 R148,151
110-16101j26 resistor 100Ω1/6W ±5% CF 26mm 1 R120
110-16102j26 resistor 1K 1/6W ±5% CF 26mm 1 R124
110-16103j26 resistor 10K 1/6W ±5% CF 52mm 1 R134
110-16105j26 resistor 1M 1/6W ±5% CF 26mm 1 R143
110-16123j26 resistor 12K 1/6W ±5% CF 26mm 2 R135,139
110-16152j26 resistor 1.5K 1/6W ±5% CF 26mm 6 R103,123,136,137,141,142
110-16153j26 resistor 15K 1/6W ±5% CF 26mm 4 R118,145,152,154
110-16154j26 resistor 150K 1/6W ±5% CF 26mm 1 R131
110-16181j26 resistor 180Ω1/6W ±5% CF 26mm 2 R111,114
110-16182j26 resistor 1.8K 1/6W ±5% CF 26mm 1 R153
110-16223j26 resistor 22K 1/6W ±5% CF 26mm 3 R128,129,133
110-16332j26 resistor 3.3K 1/6W ±5% CF 26mm 3 R106,107,144
110-16392j26 resistor 3.9K 1/6W ±5% CF 26mm 2 R105,108
110-16393j26 resistor 39K 1/6W ±5% CF 26mm 1 R126
110-16470j26 resistor 47Ω 1/6W ±5% CF 26mm 4 R112,113,115,116
110-16471j26 resistor 470Ω 1/6W ±5% CF 26mm 1 R140
110-16472j26 resistor 4.7K 1/6W ±5% CF 26mm 3 R110,125,130
110-16473j26 resistor 47K 1/6W ±5% CF 26mm 1 R101
110-16560j26 resistor 56Ω1/6W ±5% CF 26mm 1 R117
110-16563j26 resistor 56K 1/6W ± 5% CF 26mm 1 R104
110-16682j26 resistor 6.8K 1/6W ± 5% CF 26mm 1 R109
110-10821jk2 resistor 820Ω 1W ±5% 10mm 1 R132
110-122r2j15 resistor 2.2Ω 1/2W ±5% 15mm 1 R127
110-20331jk2 resistor 330Ω 2W ±5% 5mm 2 R146,149
113-50r10j10 cement resistor 0.1Ω 5W ±5% 2 R121,122
114-03302m0 semi-fixed resistor 3K 0.3W ±20% 1 R138

Capacitors

130-2b102k503 disc capacitor 1000P 50V ±10% 1 C116

130-2f104z503 disc capacitor 0.1U 50V +80/-20% 4 C108,113,115,119
130-3f473m503 disc capacitor 0.047U 50V ±20% 1 C106
130-sl101k503 disc capacitor 100P 50V ±10% 2 C139,140
132-104j503 mylar capacitor 0.1U 50V ±5% 1 C107
132-223ja03 mylar capacitor 0.022uF 100V ±5% 4 C124,125,126,128
135-3105m50 electrolytic 1U 50V ±20% 2 C105,112
135-3107m16 electrolytic 100uF 16V ±20% 3 C109,117,120
135-3226m50 electrolytic 22U 50V ±20% 2 C114,118
135-3227m10 electrolytic 220U 10V ±20% 2 C129,130
135-3476m25 electrolytic 47U 25V ±20% 1 C103
130-3f472md00 disc capacitor 4700P 400V ± 20% 1
132-223ja03 mylar capacitor 0.022uF 100V ±5% 2 C123,127
135-3107m16 electrolytic 100uF 16V ±20% 1 C110
135-4688m50 electrolytic 6800U/50V ±20% D25X45mm 2 C121,122

Semiconductors

192-027c1815gr Transistor 2SC1815GR NPN 5 Q102,111,112,113,118

192-028a1015gr Transistor 2SA1015GR PNP 2 Q114,116
192-1672n5551 Transistor 2SN5551 NPN 2 Q103,109
192-1682n5401 Transistor 2SN5401AI-PNP 350V 500mA TO-92 2 Q104,110
197-131n4148 diode 1N4148 26mm 4 D101,103,105,108
199-15000335 zener diode 3.3V 1/2W 52mm 1 D102
199-15000625 zener diode 6.2V 1/2W 52mm 2 D106,107
199-15001605 zener diode 16V 1/2W 52mm 1 D109
190-06m4558d I.C. OPA 4558D DUAL OP-AMP 1 U101
192-021c1815gr Transistor 2SC1815GR NPN 2 Q101,115
192-021tip35c Transistor tip35c NPN 1 Q107
192-02tip36c Transistor tip36c PNP 1 Q108
192-201d882y Transistor KSD882Y NPN 1 Q117
192-202b772y Transistor KSB772Y PNP 1 Q119

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Part number Description Qty Reference Designator

MAIN PCB

192-991d669a TransistorHI-SINCERITY HSD669A NPN 1 Q106

192-992b649t Transistor HSB649T PNP 1 Q105
197-00kb1405 diode 4A 500V KBL405 1 D110
197-101n4002 diode 1N4002 1 D104

Miscellaneous

162-10202001 wire 26AWG 1007 200mm RED 3mm 1

171-udhss124d relay 5A 24V UDH-SS124D 1 RY101
175-1c07v01 wire connector 7PIN PITCH=2.5mm 1 P101
175-1d02v01 wire connector 2PIN PITCH=3.96mm 1 P102
175-1d03v01 wire connector 3PIN PITCH=3.96mm 1 P103
193-3m2520 insulator TO-3P 25x20mm 2 Q107,108
150-e8604107 power ansformer EI-86 60Hz 120V TT0869906580 1
152-u602015 line cord SVT FT-2 6FT 1
154-u25006t0 fuse 2.5A 250V 20mm 1
155-520020 fuse holder R3-11 1
162-10082007 WIRE RED 18AWG 80mm 8mm#1015 1
162-a040d001 WIRE #1015 400mm 991110-00 2
163-11009 wire tie 100mm 2
176-wjcel wire connector PIN CE-1 1
180-pbr12c11s switch PUSH BR12C11S 1

LIMITER PCB
Resistors

110-16103j26 resistor 10K 1/6W ± 5% CF 26mm 6 R301,303,304,308,309,314

110-16153j26 resistor 15K 1/6W ± 5% CF 26mm 1 R302
110-16223j26 resistor 22K 1/6W ± 5% CF 26mm 2 R310,312
110-16333j26 resistor 33K 1/6W ± 5% CF 26mm 1 R305
110-16474j26 resistor 470K 1/6W ± 5% CF 26mm 1 R307
110-16751j26 resistor 750K 1/6W ± 5% CF 26mm 2 R311,313
110-16755j26 resistor 7.5M 1/6W ± 5% CF 26mm 1 R306

Capacitors

130-2f104z503 disc capacitor 0.1U 50V +80/-20% 2 C305,306

132-103j503 mylar capacitor 0.01U 50V ±5% 2 C302,303
135-3226m50 electrolytic 22U 50V ±20% 1 C301
135-3476m25 electrolytic 47U 25V ±20% 1 C304

Semiconductors

192-027c1815gr Transistor 2SC1815GR NPN 2 Q301,302

197-131n4148 diode 1N4148 26mm 2 D301,302
190-16tl074cn *I.C TL074CN ST QUAD OP-AMP 1 U301

Miscellaneous

162-10059001 wire 50mm WHITE UL1007 AWG26 6:6 1

162-50159002 wire 7PIN 150mm AWG26 UL 2468 1 P302
175-9f40hr2 wire connector 40PIN PITCH=2.54mm HR2*40 0.15

MISCELLANEOUS/MECHANICAL

323-AL-00020 HEAT SINK 65*32*31

351-AM03014A094 SCREW M3*14 BLK
352-AM03008D040 SCREW 3*8 B type
361-FE-00051 Transistor holder 14.2*8.0*5.2
361-NYL-00054 Transistor Insulator (SW06002)
150-e8604107 Power Transformer EI-86 60Hz 120V TT0869906580 T1
152-u602015 AC Line cord SVT FT-2
154-u25006t0 fuse 2.5A 250V 20mm

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Part number Description Qty Reference Designator

MISCELLANEOUS/MECHANICAL

155-520020 fuse holder R3-11

162-10082007 WIRE RED 18AWG 80mm
162-a040d001 Speaker cable #1015 400mm 991110-00
176-wjce1 terminal CE-1
180-pbr12c11s Power switch PUSH BR12C11S
302-AL-00435-0BA Alum. Back panel 270*215*2.5T
306-ABS-00004 REAR CABINET 268*213*102 A.B.S UL
311-ABS-00028 knob 46077-W P.V.C.
320-RUB-00033 Rubber pad 25*21*4t R-4
333-EVA-00096 EVA (Gasket) 213*15*2.0mm
333-EVA-00097 EVA (Gasket) 213*15*1.0t
333-EVA-00132 EVA (Gasket) 238*15*2.0mm
333-EVA-00133 EVA (Gasket) 238*15*1.0t
333-EVA-00188 EVA (Gasket) 170x5x1t
333-EVA-00220 EVA (Gasket) 225*15*1t UL
350-EM04012D024 SCREW 4 *12 BLK R/C-4
351-AM03008A079 SCREW M3*8 BLK BRKT-2,PCB TO BRKT-4
351-HM04016A218 SCREW M4*16 R-4
352-AM03010D063 SCREW 3*10 B type R/P-6,R/P TO H/S-2
352-AM03010D065 SCREW 3*10 P type -2,RCA JK-1
354-GM04002 M4 NUT BLK R-4

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