Hyt tc-700 - Service Manual
Hyt tc-700 - Service Manual
813700EX00100
2007-01-20
TC-700 Ex PLUS Service Manual
Contents
General---------------------------------------------------------------------------------------------------------2
Radio Overview-----------------------------------------------------------------------------------------------4
Software Specifications-------------------------------------------------------------------------------------6
Circuit Description------------------------------------------------------------------------------------------10
CPU Pins-----------------------------------------------------------------------------------------------------15
Adjustment Description------------------------------------------------------------------------------------48
Troubleshooting---------------------------------------------------------------------------------------------53
Exploded View-----------------------------------------------------------------------------------------------59
Packing--------------------------------------------------------------------------------------------------------62
Specifications------------------------------------------------------------------------------------------------74
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TC-700 Ex PLUS Service Manual
General
Manual Scope
This manual is intended for use by experienced technicians familiar with similar types of communication
equipment. It contains all service information required for the equipment and is current as of the
publication date.
HYT endeavors to achieve the accuracy and completeness of this manual, but no warranty of accuracy
or reliability is given. All the specifications and design are subject to change without prior notice due to
continuous technology development. Changes which may occur after publication are highlighted by
Revision History contained in Service Manual.
No part of this manual may be copied, reproduced, translated, stored in a retrieval system, distributed, or
transmitted in any form or by any means, electronic or mechanical, for any purpose without the express
written permission of HYT.
Safety and General Information
Any person using the radio must observe the standard safety regulations and read the certificate to
prevent incorrect operation or abuse of the radio.
The following additional safety regulations must also be observed:
Unauthorized modification of the radio may result in termination of Ex-protection.
Unauthorized service or repairs are inhibited.
Do not disassemble the ATEX-approved intrinsically safe products.
The radio must not be opened in a hazardous area.
The battery must only be changed in a non hazardous area.
Additional or spare batteries must not be carried into a hazardous area.
Use only the Ex-battery BL1703-Ex specified by HYT. The use of other batteries is strictly
prohibited and will result in termination of Ex-protection.
The battery must only be charged in a non hazardous area with the designated charger
CH10L11-Ex.
Use only HYT approved accessories.
Ensure that the radio is not taken into Zone 0 areas.
To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any
facility where posted notices instruct you to do so. Hospital or health facilities may be using
equipment that is sensitive to external RF energy.
When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must
be in accordance with airline regulations or crew instructions.
To avoid possible interference with blasting operations, turn off your radio when you are near
electrical blasting caps, in a blasting area, or in areas posted: “Turn off two-way radio.”Obey all
signs and instructions.
For vehicles with an air bag, do not place a radio in the area over an air bag or in the air bag
deployment area.
Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into
contact with your skin, a minor burn can result.
Do not expose the radio to direct sunlight over a long time, nor place it close to heating source.
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Radio Overview
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Wired Cloning Source radio: Turn the source radio on while The orange LED flashes twice.
holding down the PTT and SK2.
Slave radio: Rotate the On-Off/Volume Control
knob clockwise to turn the slave radio on.
Source radio (power on the slave radio and 1) LED solidly glows red when
connect the cloning cable, then press the PTT cloning progress;
of source radio to initiate cloning.) 2) LED goes out when cloning is
finished;
3) LED flashes red when cloning
fails.
Slave radio 1) LED solidly glows green when
cloning progress;
2) LED goes out when cloning is
finished.
Wireless Turn on both the source radio and slave radio The orange LED flashes once.
cloning while holding down the PTT and SK1. Both
radios are required to be on the same channel
for cloning.
Source radio (turn on both the source radio and LED solidly glows red when
slave radio while holding down the PTT and cloning progress.
SK1, then press the PTT of source radio while
both radios are on the same channel to initiate
cloning.)
Slave radio 1) LED solidly glows green when
cloning progress;
2) LED flashes green and radio
sounds beep tone, when
cloning is finished;
3) LED flashes red when cloning
fails.
Power On The green LED flashes once.
Low Battery Alert LED flashes red, and radio sounds
three beeps every 30 seconds.
Transmitting LED glows red
Receiving LED glows green when carrier
presents.
Scanning Green LED flashes once every 1
second.
Programming Reading: LED glows red;
Writing: LED glows green.
Encoding (DTMF/PTT ID/2-Tone 1) LED glows red while
(5-Tone)/HDC1200/HDC2400TM) transmitting;
2) LED glows orange when
transmission ends.
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Software Specifications
Specifications
Conventional Mode
1. Mechanical Selector Knob (16 channels)
VHF: 136-174 MHz
UHF: 420-470 MHz
2. Channel Spacing: 25/20/12.5KHz (programmable)
3. Step: 2.5/5/6.25KHz
4. LED Indicator: Red/Green/Orange
5. 3 Programmable Function Keys
6. CTCSS/CDCSS Encode & Decode
7. DTMF Encode
8. 2-Tone (5-Tone) Encode & Decode
9. HDC2400 TM Encode & Decode
10. HDC1200 Encode & Decode
11. Squelch Mode:
1) Carrier
2) CTCSS/CDCSS
3) Optional Signalling
4) CTCSS/CDCSS AND 2-Tone (5-Tone)/ HDC2400TM/HDC1200
5) CTCSS/CDCSS OR 2-Tone / HDC2400TM/HDC1200
12. Scan
13. Time-Out-Timer (TOT)
14. Rental
15. Battery Save
16. Emergency
17. PTT ID
18. Busy Channel Lockout (Tx Admit Criteria)
Description
1. User Mode
This mode is for normal operation.
2. All Reset Mode
Firstly ground the SELF point, and then turn the radio on while holding down TK key for 2 seconds. The
radio enters all reset mode with green LED flashing twice. Turn the channel selector knob to the selected
channel and press PTT, the radio data is all reset (All clone modes will be automatically activated when
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3 CDCSS deviation 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
4 CTCSS deviation LOW (67Hz) 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
CTCSS deviation CENTER 1 point tuning (narrow)
5 3 point tuning (wide) 1 point tuning
(136.5Hz)
6 CTCSS deviation HIGH (254.1Hz) 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
7 AK2346 audio deviation (TX) 3 point tuning (wide) 1 point tuning 3 point tuning (narrow)
8 2 TONE deviation 1 point tuning (wide) 1 point tuning 1 point tuning (narrow)
9 DTMF deviation 1 point tuning (wide) 1 point tuning 1 point tuning (narrow)
10 MSK deviation 3 point tuning (wide) 1 point tuning 1 point tuning (narrow)
11 TX power HIGH 5 point tuning
12 TX voltage LOW 1 point tuning
5 Squelch level 9 (OPEN) 5 point tuning (wide) 1 point tuning 3 point tuning (narrow)
6 Squelch level 9 (SQUELCH) 5 point tuning (wide) 1 point tuning 3 point tuning (narrow)
7 RX voltage LOW 1 point tuning
6. PC Tuning Mode
Select tuning mode of programming items in the programming software and then tuning as the setting.
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Circuit Description
Power Supply
The radio power is supplied by the battery. The power supply is from B+, and supplies power SWB+ for
the three AVRs, after passing through fuse FE250mA and switch. IC504 supplies 5V (M5V) voltage for
the control circuit. And IC503 supplies 5V (C5V) voltage for the shared circuit. IC502 supplies voltage for
the transmit/receive circuit. While transmitting, T5C becomes low level and Q502 is turned on to supply
5V (T5V) voltage for the transmit circuit. While receiving, R5C becomes low level and Q504 is turned on
to supply 5V (R5V) voltage for the receive circuit. Power supply for RF is from B+ and works after
passing through fuse FE4 2A. Power supply for audio PA is from B+ and works after passing through
fuse FE5 0.5A.
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1. PLL Circuit
Step frequency of PLL can be 2.5 KHz, 5.0 KHz or 6.25 KHz. A 16.8MHz reference oscillator signal is
divided at IC301 by a counter to generate a 2.5 KHz, 5.0 KHz or 6.25 KHz reference frequency. Output
signal from VCO is buffer amplified by Q301 and divided at IC301 by a frequency divider. The divided
signal is compared with 2.5 KHz, 5.0 KHz or 6.25 KHz reference signal in the phase comparator of IC301.
The output signal from phase comparator is filtered through a low pass filter to generate a level D.C., and
the level D.C. controls oscillator frequency by controlling VCO.
2. VCO
The operating frequency is generated by Q302 in transmit mode and by Q307 in receive mode.
Operating frequency generate a control voltage by phase comparator to control varactor so that the
oscillator frequency is consistent with the MCU preset frequency (D301、D302、D303 and D304 in
transmit mode, and D307、D308、D309 and D310 in receive mode). T/R pin is set high level in receive
mode, and low level in transmit mode. The output from Q302 and Q307 is amplified by Q304 and sent to
buffer amplifier.
3. Unlock Detector
An unlock condition appears if low level occurs at MUXOUT pin of IC301. Transmission is inhibited if this
condition is detected by microprocessor.
Receiver
The receiver utilizes double conversion superheterodyne (UHF)/(VHF).
1. Front-end RF Amplifier
The signal from antenna is amplified at RF amplifier (Q207) after passing through a
transmit/receive circuit and a band pass filter. Before passing the first mixer, the amplified
sign al is filtered through another band pass filter to remove unwanted signals.
2. First Mixer
The signal from RF amplifier is mixed with the first local from PLL frequency synthesizer circuit at the fix
mixer (IC202) to create a 49.95MHz first IF signal. The first IF signal is then fed through a crystal filter
(XF203) to further remove unwanted signals.
3. IF Amplifier
The first IF signal is amplified by Q206 before passing through crystal filter and by Q204 after crystal
filter and then enters IF processing chip IC204. The signal from IC204 is mixed with the second oscillator
signal again in IC204 to create a 450 KHz second IF signal. The second IF signal then passes through a
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450KHz ceramic filter (wide: CF201,narrow: CF202) to eliminate unwanted signals before it is amplified
and detected in IC204.
4. Narrow/Wide Switch Circuit
Pin WCON and pin NCON of IC500 outputs wide (high level) and narrow (low level) channel spacing
signal respectively to turn on corresponding diode-connector, and to choose ceramic filter CF201 (wide)
or CF202 (narrow) to filter useless spurious signal.
5. AF Amplifier
The resulting AF signal from IC204 enters baseband processing chip IC408. The processed AF signal is
then amplified by an AF power amplifier (IC401) to drive the speaker.
Transmitter
1. AF and Signalling
AF signal from the microphone is amplified and low-pass-filtered in IC402 before it enters baseband
processing chip IC408, which also enters CTCSS/CDCSS/DTMF/2-Tone (5-Tone) signalling generated
by CPU. The IC408 processed mixing signal enters VCO for direct FM modulation (see fig.5).
2. RF Power Amplifier
The transmit signal from VCO buffer amplifier (Q111) is amplified by Q101 and Q102. The amplified
signal is then amplified by the power amplifier Q103 and Q104 (including a two-stage FET amplifier) to
create 4.0W (UHF)/5.0W (VHF) RF power (see Fig. 6).
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4. APC
The automatic power control (APC) circuit stabilizes the transmit power by detecting the drain current of
final stage amplifier FET. IC101 (2/2) compares the preset reference voltage with the voltage obtained
from final current. APC voltage is in proportion to the difference between auto detect voltage and
reference voltage output from IC101 (1/2). The output voltage controls FET power.
Baseband and Signalling System
The block diagram of signalling section is shown as figure 5.
AFMUTE ALM/BP
IC408
AK2346 SP
AFCK De-
MSK Limiter
CODIO Modulator Emphasis AFCO
D402
AFRDF IC407 TONEI Q403
VOX SW
RB706F-40 BPF
AFDT
AFSK Scrambler MSK
AFDIR DeScrambler Demodulator
MIC 1/2OSD
TONEO
TONEO CTCSS/CDCSS
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EEPROM
CTCSS/CDCSS
Code
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CPU Pins
No. MCU Port Port Name Input/Output Features
3 P92/TB2IN NC O NC
4 P91 O
6 BYTE BYTE I
7 CNVSS CNVSS I
8 P87/XCIN O
9 P86/XCOUT O
15 P85/NMI NMI I
19 P81 O
21 P77 NC O
23 P75 NC O
26 P72/TA1O 1/2OSC O
27 P71/RxD2/TB5IN TONEI O
28 P70/TxD2
31 P65 I
32 P64 O
33 P63/TxD0 I COM4
34 P62/RxD0 O COM3
35 P61 COM1
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TC-700 Ex PLUS Service Manual
36 P60 COM2
39 P55/HOLD I
42 P52/RD NC O
44 P50/WR WE I
50 P42/A18
51 P41/A17
52 P40/A16
53 P37/A15
54 P36/A14
55 P35/A13
56 P34/A12
57 P33/A11
58 P32/A10
59 P31/A9
71 P17/INT5
72 P16/INT4 AFMUTE
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73 P15/INT3
74 P14 TK I ALARM
75 P13 DC-Switch O
86 P00/D0 SK2 I FK
90 P104/AN4 NC I
91 P103/AN3 SELF I Reset mode control: ground this pin to enter reset mode.
92 P102/AN2 RSSI I RSSI detect pin
98 P97 O
99 P96 O
100 P95 O
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TC-700 Ex PLUS Service Manual
Parts List 1
TC-700 Ex PLUS VHF Parts List 1
No. Material No. Description Qty. Ref No. Print No.
1 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R147 T5F
2 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R254 T1G
3 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R303 B3G
4 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R315 B4I
5 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R318 B4I
6 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R319 B4I
7 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R402 T1F
8 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R404 B3K
9 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R406 B2J
10 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R424 R444
11 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R444 B2I
12 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R453 B3K
13 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R457 B3K
14 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R495 B3J
15 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R497 T1H
16 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R504 T5I
17 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R510 T3K
18 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R519 T1I
19 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R590 B3K
20 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R608 T1G
21 3001050000000 Chip resistor 0402 0Ω J 1/16W 1 R609 T1G
22 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R152 B3G
23 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R214 B2G
24 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R344 B2I
25 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R348 B4J
26 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R349 B5I
27 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R350 B5I
28 3001051000000 Chip resistor 0402 10Ω J 1/16 1 R456 T2E
29 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R222 B1G
30 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R223 B1E
31 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R301 B3I
32 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R305 B4G
33 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R308 B4G
34 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R335 B3I
35 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R346 B2I
36 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R454 T1D
37 3001051010000 Chip resistor 0402 100Ω J 1/1 1 R605 T2A
38 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R228 B1E
39 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R311 B4G
40 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R317 B4I
41 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R352 B5I
42 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R405 B3K
43 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R466 T1J
44 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R468 T1C
45 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R512 T4I
46 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R522 T2H
47 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R534 T3I
48 3001051020010 Chip resistor 0402 1KΩ J 1/16 1 R550 T2J
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Adjustment Description
Adjust the radio by PC programming software or by manual adjustment. In manual adjustment mode, the
adjustment method is shown as follows (Refer to “Software Specification”for the manual adjustment
mode).
Required Test Instrument
Radio Communication Test Set 1 set
Scanner 1 set
3A/10V Power Supply 1 set
Digital Voltmeter 1 set
3A Ammeter 1 set
Adjustment
Adjustment in user mode
Firstly ground the SELF point, turn on the radio by holding down TK for 2 seconds, and then the radio
enters reset mode with green LED flashing twice. Turn the channel selector knob to the selected channel
and press PTT, the radio data is all reset (All clone modes will be automatically activated when reset is
completed). Refer to All Reset Mode in Software Specification for more details:
VCO
Measurement Adjustment Specification/
Item Condition
Test Instrument Terminal Parts Method Remarks
1. Setting Power supply voltage
2.Transmit 1. CH: TX high Digital Voltmeter CV TC301 3.9V±0.1V
VCO lock 2. TX Low TC302 Check >0.5V
voltage
3.Receive VCO 1. CH: RX high 3.9V±0.1V
lock voltage 2. RX low Check >0.5V
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TC-700 Ex PLUS Service Manual
(5) PTT/SK1
PTT -> Increase
SK1 -> Decrease
PTT/SK1 is pressed to adjust upward/downward. Red LED glows indicating the maximum adjust
value and green LED indicating the minimum value. Hold down the key to increase/decrease the
adjust value continuously.
Press PTT key to save the BATT LOW and SQL settings, then green LED glows once.
(6) Select adjustment item group
The first group of adjustment item is selected when the radio enters the manual adjust mode.
Turn to CH16 and press PTT key to enter the next group. Press again to return to the first group.
Orange LED flashes once when the first group is selected. Orange LED flashes twice when the
second group is selected.
(7) Frequency Setting (can be set via programming software)
5 point tuning (MHz) TX: { TX1,TX2,TX3,TX4,TX5}
RX: { RX1,RX2,RX3,RX4,RX5}
3 point tuning (MHz) TX: { TX1, TX3, TX5}
RX: { RX1, RX3, RX5}
1 point tuning (MHz) TX: { TX3}
RX: { RX3}
Adjustment Method
Turn the radio on by holding down TK and SK2 key simultaneously for 2 seconds, the radio enters
manual adjust mode with red LED flashes twice. Refer to Manual Adjust Mode in TC-700 Software
Specification for more details.
Transmitter
Item Condition Test Method Purpose
Instrument
Enter the adjust mode; Turn to Radio Adjust VR1 Frequency
CH1; Communication Error
Adjust a channel
TX mode. Test Set; ≤100Hz
TX Test
Enter the adjust mode. Turn to PTT key Adjust power
1. TX power Low CH1. (increase) to: 0.5W±0.1W
Adjust at 5 point (wide). SK1 key
Radio (decrease)
Enter the adjust mode. Turn to
Communication
Group 1
CH3. Adjust at Test Set
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TC-700 Ex PLUS Service Manual
PTT key
Enter the adjust mode. Turn to
(increase)
CH6. Adjust at 3 point (wide),
6. CTCSS
1 point (medium) and 1 point SK1 key
(254.1Hz) (narrow) respectively.
(decrease)
deviation High
Radio Adjust
Communication deviation to
Enter the adjust mode. Turn to
7. AK2346 Test Set 4KHz (wide),
CH7. Adjust at 3 point (wide),
Transmit Audio HPF: 20Hz 3.2KHz
1 point (medium), 3 point
Deviation LPF: 15KHz (medium) and
(narrow).
1KHz 2KHz (narrow)
120Mv respectively.
Adjust
deviation to
Enter the adjust mode. Turn to 3.2KHz (wide),
8. 2-Tone CH8. Adjust at 1 point (wide), 2.5KHz
deviation 1 point (medium), 1 point Radio (medium) and
(narrow). Communication 1.8KHz
Test Set (narrow)
TX Test respectively.
HPF: 20Hz Adjust
LPF: 15KHz deviation to
Enter the adjust mode. Turn to No modulation 3.2KHz (wide),
9. DTMF CH9. Adjust at 1 point (wide), signal. 2.5KHz
deviation 1 point (medium), and 1 point (medium) and
(narrow). 1.8KHz
(narrow)
respectively.
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TC-700 Ex PLUS Service Manual
Adjust deviation
Enter the adjust mode. Turn to to 3.2KHz
10. MSK CH10. Adjust at 3 point (wide), 2.5KHz
deviation (wide), 1 point (medium), 1 (medium) and
point (narrow). 1.8KHz (narrow)
respectively.
Modulation
signal: 1KHz,
45mv
11. VOX Enter the adjust mode. Turn to
Press PTT to
GAIN1 CH11. Adjust at 1 point (wide).
Radio save;
Communication (unavailable
Test Set now)
Save
Group 1 Tx TEST Modulation
HPF: 20HZ signal: 1KHz,
Enter the adjust mode. Turn to LPF: 15KHZ 15mv
12. VOX
CH12. Adjust at 1 point Press PTT to
GAIN5
(wide). save;
(unavailable
now)
Radio PTT key
Enter the adjust mode. Turn to
13. Tx power Communication (increase) Adjust power to
CH13. Adjust at 5 point
HIGH Test Set SK1 key 3W±0.1W
(wide).
Tx TEST (decrease)
Enter the adjust mode. Turn to Adjust voltage to
14. Tx voltage
CH14. Adjust at 1 point Save 5.8V, press PTT
Low
(wide). to save.
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Receiver
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Troubleshooting
MCU Check
NO
Yes
Q501 NO Exchange
works well? Q501
Yes
Pin10 is of NO
high level? Check M5V
Yes
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No output
power
High
Check transistor offset
Check drive
voltage and low pass
stage
network
NO
Check the
The power is NO
suited
normal? network
Yes
Yes If the power
Finished is normal.
Finished NO
Exchange
Q102
Finished NO
Exchange
Q101
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Figure. 1
Figure. 2
2. Attach speaker and its waterproof ring to the corresponding place on the case ②.
Note: ensure the speaker and its waterproof ring are securely inserted.
.
Figure 4
3. Press the stainless fixing ring on the waterproof ring of the speaker, and attach the screw ③.
4. Insert the top side of the bracket into the case ④. Caution: Do not place the speaker wire on the
magnetic core of speaker.
5. Press the bracket downwards and attach the screw ⑤ to make the bracket is assembled into the
case.
Note: Manually place the waterproof ring for main unit at the proper position if it is mal-positioned.
Figure. 5
Figure. 6
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Exploded View
1 2 3 4 5 6 7 8 9
10
47
46 11 12
F
45
43 41 40
44 39
13
42
A
A
14
38
32 15
33 36 37
30 31 48 34
28 29 B 35
49
B 16
C
E 17
A
27
18
19
D 20
D
21
26 25 24 23 22
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Parts List 2
No. Material No. Description Qty.
1 6000135000000 PTT key cover 1
2 6100068000000 Silica rubber PTT key 1
3 8600700500000 Model label 1
4 8600700500100 HYT logo, metal label 1
5 6201006000000 Inner liner knob 2
6 6000076000020 Channel selector knob 1
7 6000136000000 Light guide 1
8 750700S000000 3M (9448) adhesive tape for light guide 1
9 6000077000030 Volume control knob 1
10 6000134000000 Rear cover of radio unit 1
11 6000138000000 Dust cover 1
12 7400051000000 MIC cover 1
13 7400054000000 Grill cloth 1
14 5001190000090 Speaker 1
15 6100066000000 Waterproof ring for speaker 1
16 6201079000000 Stainless steel fixing ring for speaker 1
17 6100067000000 Waterproof ring for antenna 1
18 6100069000000 Waterproof ring for volume control knob 2
19 7207005400000 Nut M7.0*5.4mm 1
20 7206004200000 Nut M6.0*4.2 1
21 6100065000000 Waterproof ring for radio unit 1
22 6000137000000 Bracket for MIC holder 1
23 5202003100120 Battery connector 1
24 6100070000000 Waterproof ring for battery connector 1
25 86700EX400000 Warning label 1
26 8600700000100 Model label 1
27 6300016001000 Aluminum chassis 1
28 7300001000000 Metal dome of PTT 1
29 5202004200010 FPC/FPC connector 1
30 41700EX100400 PTT PCB 1
31 7500114000000 Heat sinking pad 1
32 3801045030090 Ceramic filter 1
33 3920450300000 Modulator plug-in 1
34 5205000000190 Earpiece jack 1
35 4400000000000 SMA connector 2
36 5205000000280 Speaker jack 1
37 4302020000040 Volume switch 1
60
TC-700 Ex PLUS Service Manual
61
TC-700 Ex PLUS Service Manual
Packing
62
TC-700 Ex PLUS Service Manual
1 7
2 8
3 9
4 10
5 11
6 12
63
TC-700 Ex PLUS VHF PC Board View
Top Layer
64
TC-700 Ex PLUS VHF PC Board View
Bottom Layer
65
TC-700 Ex PLUS UHF PC Board View
Top Layer
66
TC-700 Ex PLUS UHF PC Board View
Bottom Layer
67
TC-700 Ex PLUS Level Diagram
ANT
C251 C236 C238
LPF BPF BPF IC202 XF203 IC204 IC408 IC202
IC404 SP
C135 C254 Q207 C312 C241 Q206 C230 Q204 C487
AMP
K501
Each of the levels plotted from RF to the first IF is the level that can provide a 12dB SINAD for an SSG signal through a 470pFb coupling capacitor.
When AF ouput is adjusted to 1W, adjust the frequency deviation of 1KHz AF level to 3KHz (Wide), 1.5KHz (Narrow).
Transmit
12mVrms 60mVrms 150mVrms 0.15Vrms 0.44Vrms 0.8Vrms 0.62Vrms 4W
ANT
IC408 C312 C312 C101 C105 C111 C117 D102 LPF
C307
IC402
MIC Q302 Q304 Q111 Q101 Q102 Q103 Q104
D305
AMP
AF VTVM RF VTVM
68
TC-700 Ex PLUS Block Diagram
69
TC-700 Ex PLUS VHF Schematic Diagram (RF)
C5V
C302
10p R301 ANT100
C301 100 Antenna
1000p C359 2.73V
L301 L322
15p
27n 68n
R306 R302 C358 C137 C139* C141*
0 C361 C360 220k 1000p 10p 9p 10p
22p 22p Q301
2SC5108(Y) C303
ANT SW
C131* C135
82p D102 1000p
L111 L112 L118 *L119 L113* L114*
10p(B)
TX FINAL AMP 3T 4T 3T 5T 6T 5T
PLL_Fin RF AMP MA77
Q104
C117 L107* RD07 L115
T: 3.73V R114* C119 C125* C126 C130* C134 C136*
C127 C138* C140* C142* 1u
R: 0 V TX DRIVE AMP 1p
D303 R305 PRE-DRIVE AMP PRE-DRIVE AMP 27n L109 3p 82p 8p 12p 27p 10p 22p 20p 10p
L321 Q103 0
C102 C105 CE7 R109 CE8 L101 1000p 8T
HVC362 6.8u 100 R102 R106 RD01
TX VCO OSCILATION TX / RX 15p 27p 1000p 1000p 27n R115
R: 2.3V RF BUFFER AMP RF SW 47K 3.9K 18 L105 C161 L116
D 47 L108
T: 2.4V L302 Q302 Q304 1u 27p 2.2u 8T
C305* C311 D101 Q102
Comment: 6.8u G 2SK508NV 0.01u 2SC5108(Y) TX/RX COMMON RF AMP C157 C101 2SC4988 R111
T: 0.75V 10P MA2S077(HSC277) 1000p
S L100 47
C308* R: 0.75V Q111 L110
D304 68p C312 C120 C121 C122
6p(B) C313 C100 2SC5108 18n
C306* R103 L102 R108 L103 1000p 0.01u 0.1u
R303 33p 15p
BLM 21P600SG
HVC362 R151 L117 Q101 330 68n
22p 0 330 68n R105
2SC5108(Y)
BLM 21P221SG
D301 D302 R304* 0.5p 3.3k 100n
C307 R118 680 R112 R113 C118
HVC362 HVC3 62 L304 390 C323 C103 R116 R117
C304 0.5p(B) R307 L305 4.7k 120k 47k 1000p
33n 18p 47k
BZX84
BZX84
BZX84
TC301* 150k 4p 100n C114 C115 47k
0.01u C309*
L106
DE1
DE2
DE3
10p VCO SWITCH 1000p 470P
10p(C) L320 D201 C104 RE24 RE25 C133
T: 3.89V L306* C144 D103 D104
6.8u Q303 R148 R149 R150 C155 C156 MA2S077 1000p 270 270 1000p
R: 3.89V 27n C107 47p MA2S077 MA2S077(HSC277)
2SJ243 C310 3.3k 5.6k 270 1000p 1000p R101 R104 R107 1000p
D305 1000p 3.3K 22 22 L104
C106
BB179(1SV278) R308 1000p BLM11A601S1U C112 C113 C116 C123 C124
C354 100 0.1u 1u 1000p 1u 1000p
R313 R322
L311 47k 270k C357 L307 ANT SW ANT SW
D309 R: 4.08V 0603CZ
L309 0603CZ 1u/6.3v 0.01u R309
HVC362 6.8u T: 0V
22 R152
R: 4.89V T5V
VCO/RX 10 DCSW
T: 0V RE22 DCSW
Q307 R310 R: 4.89V C108* C110 C109
D310 C319 C5V RTHE1 1K
L308 2SK508NV 100k C314 C356 R5V 1000p 1000p 0.1u RE35 R137 150k 1% R144
C324 47k ZD101
1000p 0.1u 2.2k
6.8u 0.01u Q1 05 3.3k
C159 C158
HVC362 39p C321* C325 Q108 C150 C152
0.1u 1000p
3.5p(B) DTC114EE 4.7u/10v 100p
C320* R201 1 vcc R141
C318 10p RIPPLE FILTER 10k
D307 D308 L310* R314* 0.5p(B) 10k Q110
Q306 C201 R136 2 7
1000p HVC362 HVC362 23n 390 R123 DTA144EE
Q305 2SC4617 1000p C145 150k 1%
TC302* C322* VCO SWITCH 390
0508UMC4 470p 3 6
10p 7p(B) C5V RE29
L313
4 5 R142
6.8u 150k 1%
L314 1M
C315 C317 D306 NCON FTHE1 IC101
0603CZ R311 R312 NCON C147 C148 RE26
470p 470p MA2S111 NJM2904V
1k 4.7k 0.01u 470p 5A
C206 R204 CF202 R208 0.39
C132
0.1u 22k 450KHz 22k C153
R347 470p
CV MOD B+ 470p
RE27
0.39
MOD
RE30 R138 R139 R143
10k T7 D202 D203
FE4 150k 1% 180k
T/R
1u 470p C154
C5V R145
0 470p 47k
L316
0.22uH(0603CZ) CF201 R5V
R316 R318 R319 450KHz C202 T2 SWB+
R205 R206 R207 R209
2.2k 0 0 4p
4.7k 22k 22k 4.7k Q109 Q107
R317 C336 DTC114EE
2.7k R350 C337 2SK1824 APC/TV
R320 APC/TV
C326 C328 1 16 R349 10 4.7u/10V 0.1u C207 C205
Rset Vp L202
0.1u/35v 0.22u/35v 4.7k 10 C362 D311 R351 18p 39n 0.01u
C327 2 15 MA2S111 150k WCON
2.2u/16v CP DVDD WCON R146
470p C208 R214 100k
3 14 PLLUL 0.1u
CPGND MUXOUT PLLUL 10 R147
1k 0
R348 4 13 R352 C338 C203 C204
C329 AGND LE
10 0.1UF OSCI 18p 18p
100p OSCI
5 12 C339 APCSW
RFinB DATA APCSW
100p R211 C209
6 11 2.7k 470p
RFinA CLK C340 R5V
R336 PLLSTB C219 C220
C331 C332 7 10 100p PLLSTB C214
AVDD CE C341 C215 0.01u 10u/6.3v
1000p 1000p 10k 100p
0.1u
6
8 9 0.1u
REFin DGND R212 R5V R5V C262
R251 C261
50.4 MHz
82k
*C211 R252 C213 T201 510 0.1u 1000p
R321 C334 PLL SYSTEM 20p 82k C212 XFMR
10K 0.1u 0.1u
IC301 R241
1
PLLDAT R227
1
ADF4111 PLLDAT 100k
3
470p 6.8k
MIXER
IFI
FILI
R213
FILO
OSCI
DEC
VCC
MIXO
4.7k
OSCO
C210 FM IF C237 C239
C5V
1000p SYSTEM 0.01u 0.01u
R219 C229 4 1
IC204 2.7k R225 R228
QUAD
NDET
MIXI
RSSI
0.1u
NREC
220 1k
IFO
TA31136FN
AF
R335 C342 C343
E
IC202
100 10u/6.3v470p PLLCLK
PLLCLK T3 C228 HSMS-2827 C259 C266
R234 C250 R235 R253 L209
33p R238 1000p 1000p
16
C346
2
100k 0.01u 100k 100k 68n
1000p C236 12k
X301 C225 Q206 L204
3
0.01u C256
L315 16.8MHz
VR1
R215
C221 R254
0 R216 82p R220
R223 2SC3356 150n C241 T1
0.56u R337 47k 3.3k IF AMP XF203 100
3 4 C345 68k AF DET 1u 680k 0.01u T202 C243 L203 C245 C249 C253 L208
Out Vcc 180k AF DET 49.95MHz
0.1u R218 C230 XFMR 0.01u 15n 18p 12p 0.01u 15n 1000p CE9
C330 C335 2 1 R484 R458 R409 CTC_PLL R255 C226 100k 0.01u R222 R231 R240 R242 30p
10p 10p Gnd Vc CTC_PLL 1k C222 0.01u Q207 R237
39k 22k 15k AFMUTE Q202 100 18 100k 100k
4
AFMUTE 4700p C244 AT-41511 1k CE10
R5V C344 C269 2SK1824 C227 R226 R229 C257 C258 C265
R339* R203 R217 Q204 C242 27p 30p
R346 R338 4.7u/6.3v 0.1uF R221 C268 27 2.2k C252 C255 0.1u 150p 10p
120k C421 C424 1.5k 1.8k 0.1u 2SC5108(Y) C238 R230 R232 NC
82k C233 4P C234 C248 1000p NC
100 1000p 270 270
03191250
03191250
0.018u 0.015u CD201
C348 TH301 4p NC 1000p
RSSI 450K C264
0.01u L317 RSSI C246 C273
L206
L207
3k C247 C254 RF AMP 1000p
HVC362
330n 10p C251 L211 1000p L212
12p
D206
L319 330nH SQL NC
C349 SQL C231 33p 03191050 03191250
R345 1000p Q201 0.1u R236 R239 L210 C263
220k L205 D207 D208 D209 D210
C352 OSCI NCON 2.7 6.8k NC 47p C267
OSCI NCON DTA144EE Q205 C240 150n HVC362 HVC362 HVC362 HVC362
R344 C347 30p 15p
DTA114EE 82p
10 1000p TRIPLER W/N SW/RX
L318 C224
C350 C351 330n 0.1u
C353
68p 68p
68p Q308 RF BPF TUNING RF BPF TUNING
2SC4649
70
TC-700 Ex PLUS VHF Schematic Diagram
(Baseband & AF Amplifier)
C535 D503
M5V SWB+
SWB+
J504
470p 1SS373
5 C537 C536 C533 C532
4 470p 10u6.3 470p 1u
3
1 3
2
1
IC504
CON5 XC6201P502R
2
47K
47K
47K
47K
1K
1K
1K
R538
R539
PTT
J403
K507
COM4
R535
R536
COM4 1
RE5
RE6
RE7
COM3
COM3 2
COM1
COM1 3
COM2
K506 COM2 4
OPTION1
MONI OPTION1 5
COM5
COM5 6
L503 PTTCO
PTTCO 7
0.22UH AUX1 RE11
AUX1 8
MIC_I R468 1K
MIC_I 9 TXD
MIC_O TXD
MIC_O 10 1k
SP_O RXD
SP_O 11 RXD C602 ZD401
SP_I RE19
SP_I 12 SWB+ 220p EDZ6.8B
K504 C5V SWB+
47k
R502
13 B+ 3R9
FK2 B+ K501
C603
IC501 C512 14
R508 C5V L501 FE1
8 1 1000P
RE8 VCC A0 CON14 J502 1 BLM21P221SG 250mA RE18
10k EECLK 1 5 ZD402
TEST A1
220p
K503 1K GGND EEDAT EECLK 3R3 Q404 IC401 EDZ6.8B CE5 CE6
SCL A2 J501 1 R601 RE9 RE10 RE31 R455 J401
ALARM COM2 EEDAT NCON DE4 DE 5 DE6 2SK1824 2 4
AFDIR
AFSCK
T5C
AFDT
SAVE
CODIO
ALM/BP
3
COM3 R5C 2SK1824 R413 INPUT+1 +Vs RE20 FE3
EDZ6. 8B
MONI SAVE C601
COM4 SAVE NC R412 1R2 500mA SPK ACK
ZD403
ZD404
CODIO Q402 6 3 0.1u C605
CODIO R605 C418 INPUT+2 OUTPUT2
FK AFDT R608 4.7 100p
EDZ6.8B
AFDT C610 100 10u/16v
ALARM AFSCK RES1 R400 5 4 C416
CP509 1k*2
CP511 1K*2
CP512 1K*2
47K R556
1K R550
RE15 1K
1/2OSC 1u C444 MIC JACK
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
0.1u
RE13
1/2OSC ALARM R488 10K B+
1K
COM5 C486 C485 R609 47P TMMT717TA C413
1
COM5 47k 500mA
P43/A19
P47/CS3
P71/RxD2
P67/TxD1
P42/A18
P44/CS0
P45/CS1
P46/CS2
P52/RD
P62/RxD0
P66/RxD1
P61/CLK0
P65/CLK1
P56/ALE
P60/CTS0
P63/TxD0
P64/CTS1
P70/TxD2
CTC_PLL RES1X
P57/RDY
P50/WRL
P53/BCLK
P54/HLDA
P51/WRH
P55/HOLD
-
PTTCO ZD407
51 P41/A17 P73/CTS2 25 COM5 AFRDF
AFRDF
TC75W51FU EDZ6.8B
+
52 24 R566 CTC_PLL AFCK C487 Q405
P40/A1 6 P74/TA2out Q501 AFCK R460 4.7u/6.3v RE33 100p C496
53 23 AUX1 DTC144EE
+ -
R532 1k P37A15 P75/TA2in 1K DTC144EE AUX1 27k 1U
SDATA
SDATA 54 P36/A1 4 P76/TA3out 22 R565 CTC_OUT 1k
CSN 55 21 TONEO R590 R422 R421 R418 5CNS R415 R416
CSN P35/A1 3 P77/TA3in 1K TONEO R494 C483 RE14
56 20 PTTCO APC/TV 0 470 1.8k
R533 1k P34/A1 2 P80/TA4out C514 APC/TV R498 22k 4.7u/6.3v 18k 18k C414 10k
8
57 P33/A1 1 P81/TA4in 19 AFRDF
15p
PLLUL
PLLU L CTC_OUT
CTC_OUT C428 NC
R5V 1K MIC801
0.01U 58 18 CP507 1K*2 AFCK PLLSTB 15k 0 C412
P32/A1 0 P82/ INT0 PLLSTB C409 C498
C545 59 17 AUX1 X501 AFMUTE C493 C492 10u/6.3v
P31/A9 P83/ INT1 R554 AFMUTE R434 R591 R443 1000p 470p
60
ACC P84/ INT2 16
*1M*
9.8304MHz OPTION1
OPTION1
0.015u 0.018u
C5V MIC_I
NCON 61 30622M4 15 R561 47K PLLDAT
PTT
1K P30/A8 P85/NMI C546 1000P PLLDAT 330K 2.7K 47k R441
R496
CP518 1K*4 R534 62 VSS VCC 14 PLLCLK
PLLCLK
C429 MIC_O C467
82k C401
2.2k
AFCO 63 13 C515 27P T/R 0.1UF 1uF
IC506
SP_O
P27/A7 XIN T/R R401 C495
PTT
BLM11A601S
WCON GGND 64 12 APCSW R424 1uF Q407
P26/A6 VSS APCSW
L401
LEDR 65 11 PTT/RXD R405 0 27k R469
P25/A5 XOUT PTT/RXD C491 0.022u DTC114EE
LEDG 66 10 GGND RESET VOX R407 C410 1k 10k
67
P24/A4 RESET
9 R552
R510 0 C516 27P BATTSEL
VOX 1U 2SC4617 C433 R404 SP_O
P23/A3 P86/Xcout 47k BATTSEL Q411
68 8 C431 Q410 0.1UF 0 2SJ243 R408
P22/A2 P87/Xcin R558 0 NA R435 10k C402
69 7 RSSI 0.1UF 0.47u 1M
P21/A1 CNVSS RSSI R492 220 R444 47p C422 Q406
L504
EN3
EN2
EN1
SP_I
73 3 10k R440 4.7k 100k
CP516 P15/INT3 P92/TB2in 100k 0.22u R402 R499
ALARM 74 2 CP517 1K*2 TONEO
P14/D1 2 P93 / DA0 R493 SP_I 15k 22k
8
DCSW 75 1 APC/TV C478 0
P13/D1 1 P94/DA1 100k C404
P97/ADtrg
R481 C479
AUX1
P95 / AN X0
R480 R476
P105/IN5
P104/IN4
P103/IN3
P107/AN7
P106/AN6
P102/AN2
P101/AN1
1u
P100/AN0
P96/ANX1
C5V 330k 1u
AFMUTE
P11/D9
P10/D8
P07/D7
P06/D6
P05/D5
P04/D4
P03/D3
P02/D2
P01/D1
P00/D0
10k
+ -
RE4 RE3 RE2 RE1 C5V 9.1k 100k R470
R517 IC402
AVSS
VREF
AVCC
1K 1K 1K 1K 68k
VOX
10k D502 5CNS
IC408 TC75W51FU
ENCODE SWB+
+
SWB+ AK2346 C476 C406 C405
100
AUX1
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
-
GGND 1SS373 1U AGNDIN TEST C423
R557 C524 C519 Q412 R479 R478
4
C542 C541 4 C539 L502 0.22UH C521 C520 AGND RXIN 470p
CP524 1K*2
R472 56k
R641 51k 24k C481 C473
0.01U 0.01U 0.01U 0.01U GGND 100K 470p 10u6.3 470p 1u 2SJ243 33p TXIN RXINO C458
1
R568 1K
R512 1K
R526
R525
47K
47K
47K
47K
1K*2 CP506
CP526 1K*4
Y SCK 470P
3
M5V X402
GND REF Q409
VDA X Q503 R406 * 100k 3.6864MHz
NCON R427 2SK1824
SAVE 2SJ243 NCON R428 R453
0
R477 33k
6.8k
R567 10 0
R5V
C560 C561 5CNS
R5V R426
0.01U 0.01U 5CNS AFCK D402 C408
AFCK 10k C426
470p AFDT NC
Comment : RB706F-40
MICAFM UTE
BATTSEL
PLLCLK
AFM UTE
PLLDAT
AFRDF 2SC4116(y)
PLLUL
APCSW
2SJ243 1 3 AFRDF
BATT
MONI
SELF
RSSI
T/R
AFSCK MICAFMUTE
VOX
PTT
SQL
TI
FK
IC502 AFSCK
AFDIR
XC6201P502R AFDIR
C530 R423
2
AFCO
BATT
R5C
SWB+ * 0.1u
R562 C449
R449
RES1 C538 TI 0.039UF C446
T5V TI 390k R446
T5V R431
R522
C559 22k
Q502 R466 220p IC405
R549 1u
AGND DTC144EE 2SA1745 1k R5V
47K TONEI 1 8
TONEI IC407 R5V
100k R429
Q507 Q506 C633 R433 C448
DTC114EE DTC114EE C531 0.47UF 1 8 C497
100K
220K
C460
R523
R521
15UF6. 3V
C638
TDA TA XOUT
22P
SDATA R634
SDATA DI/O DIR
C637
12 13 1M
RDF/FD SCLK
C639
22P
X630
3.6864MHz
AFSCK
AFSCK
CSN
CSN
71
TC-700 Ex PLUS U HF Schematic Diagram (RF)
L109
5p 5p 150K RD07 C136* C138* C140* C142* 1u
2SC5108(Y)
8T
C303 C125* C126* C127* C128 C129* C162 C163* C164* C130* C134* 1P 5P 3P 1.5P
10p(B) C105* R106 CE7 R109 CE8 R110 20P 20p 6p NC NC 1P 3p
R102 NC NC 6P
Q103
7p 1.5K 6p 10 470p 0 L105
L108
RD01MUS1
R305 47K 1u C161*
100 27p R115 220n
D101 C101 47
D303 L321 C311 C355 6P 470p R111
470p 0.1U 3.8V C157 MA2S077
2SC5108(Y)
HVC350B 100N C312 47
Q101
R:2.3V
L110
L302 C305* L304* C309* 0.5P C313 C100 R103 L102* C120
T:2.4V Q304 R108 L103* L116*
BLM21P600SG
Comment: 3.3u 22P 22nH 6p 22p 470p C121 C122
BLM21P221 SN1D
2.5P 2SC5108(Y) R118 330 15n 4T
2SC4988
Q102
R151 L117 330 18n R105 0.01u 0.1u
C304 C306* C310* R307 Q111 3.3k 3.3k 680 R116 R117
1000pF D304 3P C307 C308* L320 220K L305 R148 R149 22N 39K 33K C118
BZX84
BZX84
BZX84
0.5p 3P 3p 2SC5108 1000p
HVC350B 3.3u 22n 3.3k 5.6k R112 R113
L106
DE1
DE2
DE3
L303
3.3u
C354 100 22
D309 47K 47K Q305 C112
HVC350B L312 R309 C314 C356 0508UMC4 0.1u
L308 L311 1u/6.3v
L310*
100n 2.7 470p 0.1U
L307
R152
10 T5V
3.3U C319 23nH C322* R144
4P BLM11A601S1U 2.2K DCSW
R310 C5V RE22 1K DCSW
56p Q307 L313 C325 100K R124
HVC350B 0.5p C159 C158 TH101 R137
3.3K
4.7u10
C318 D310 C320 3.3u 0.1U 470P C108 C109 ZDE1 150K 1%
47K
DTC114EE
ZD101
C150
1000pF D307 L309 15P 470p 0.1u
3.3U C323 C324 R311 C152 IC101
HVC350B D308 C321* 1K
Q108
HVC350B 5P 10P 1000p Q105 100p R141
TC302 R314 R5V R201 1 vcc
10K
180 10K DTC114TE
L314 10P R136 Q110
150K 1% 2 7
BLM11A601S1U 2SK508NV DTA144EE
R347 Q306 R312
2SC4617 RE29 3 6
10K MOD
MOD
4.7K C5V C201 R123 C145
T7 470p 150K 1%
L316 D306 390 470p 4 5 R142
R315 IC301 C5V
T:0V MA2S111 NJM2904V 1M
4.7u/10V
TH102
R350
R351
1 RE26 C153
R316 R318 R319 Rset Vp
470p
C336
C132
C337 C147 C148
10
0.36
C316 180K
RE27
3 14 1k NCON RE30 R138 R139
T/R
C327
1u 16v 1U 470p
470p
C154
6 11 C340 D202 D203
RFinA CLK 100p
C341 DAN222 DAN222
C332 7 10 R336
C331 AVDD CE 100p
1000p 1000p 10K PLLUL
CF201
8
REFin DGND
9 450KHz Q107
2SK1824 APC/TV
R321 PLLSTB
PLLSTB R202 APC/TV
10k ADF4111 18 Q109
C334 R146*
4.7K
R205
R206
0.1u R207 R209 DTC114EE
22K
PLLDAT
PLLDAT
22K 4.7K 100K
C5V R147
PLLCLK T2 0
PLLCLK R5V
10u 6.3v
0.1u
R5V
C214
2.7K C219 C220
C348 C421 C424 0.01u 10u6.3
TH301
0.01U L317 L319 0.018UF 0.015UF
R212
3K
82K
6
330N 330nH C215 C264 C265
0.1u
C213
C349 C211* 0.1u T201 0.1u 100p
R345 1000P 56p R252 C212
220K OSCI 470p XFMR R251
OSCI 82K R5V 510
C347 C352 R241
1
R344 1000P
1
30p R227 R238 100K
3
10 6.8K 12K
C350 C351 L318
IFI
FILI
Q308 NC 68P 330N C210 R213
FILO
OSCI
R5V
DEC
0.01u
VCC
MIXO
OSCO
4.7K
C237
C353 1000p
2SC5108(y) IC204 R228 C239 4 1
NC R225 1K
MIXI
QUAD
NDET
TA31136FN 0.01u
RSSI
220
NREC
IFO
AF
C236
E
R219 C229 IC202 C258
2.7K 0.1u 0.01u Q206 100p
100p
L209
C252
2SC3356 HSMS-2827 180n
T3
16
L204
2
C221 R254 R234 R235 C246
C225
150n C253
680K
R220
R215 1U R216 C228 100K 100K 0.01u C249
3
82p
0 T1 100p
33p C241 NC
47K 3.3K Q204 XF203 R223 0.01u T202 C247*
AF DET C230 R222
AF DET R218 49.95MHZ 100 R231 XFMR R233 C243 C245* 7p C251
R253 0.01u 100 18 0 4p L208* 22n 0.1u
C226 100K 7.5p R237 R240 R242 CE9
AFMUTE 1k Q202 C222 0.01u Q207 4.3K 100K 100K 16p
R229
4
AFMUTE NC AT-41511
HVC350B
R226
1800p
CD201
1.5K
2.2K C257*
R203
1000p
1.8K
R217
450K
C269 R232 C254 C255* CE10
HVC350B
27
C238
2SC5108(Y) R230 4p
0.1u
D207
0.1uF 270 0.1u 5p 16p
C227
C268* 270 C242
D206
C244*
0.01U 25V
C233 4P C234 6p(NC)
RSSI
9p
RSSI Q205 4p
R221
NC
HSM88AS
C248* C250
SQL 9p NC
D208
SQL L206* L207*
L210*
6.8K
R239
4T 4T D209 D210
R236
22n
NCON HVC350B HVC350B
NCON
Q201 DTA114EE C231 0
0.1u C240 L205 C256* C259*
82p 150n 12p 12p
L211 L212
5T 5T
DTA144EE
C224
0.1u
72
TC-700 Ex PLUS UHF Schematic Diagram
(Baseband & AF Amplifier)
J504
5
C535 D503
4 1SS373 R468 RE11
3 M5V
470p SWB+
SWB+ 1k 1k
2 TXD
TXD
1
RXD
RXD
CON5
SWB+ RE19 C603
C537 C533 C532 PCB topCPU : SWB+
1K
1K
R538 47K
R539 47K
1K 1 5 RE10 RE31
XC6201P502R
2
PIN35)、COM2 (CPU J501 1 250mA 3R3 C609 RE9 1K 1K IC401 R455 J401
DE4 DE5 DE 6 R601 8.2K 0.1uF 1K 2 4 EDZ6.8B 0
PTT PIN36)、OPTION1 (CPU RE34 TDA2822
PIN79)、AUX1 (CPU
10u/16v
K507 BATTSEL 1K
C517 C518 C608 Q404 R602 8 1 R456 CE5 CE6
L503 BATTSEL R548 C558 INPUT-1 OUTPUT1 R411
PIN17)、COM5 (CPU 2SK1824 NC 10 22U 22U
C418
0.22UH 220k 1000p 1000p 470p 0.01uF 4.7
EDZ6.8B
PIN25)、PTTCO (CPU PIN20 ) 7 2
ALM/BP
EDZ6.8B
R413 C601
3
INPUT+1 +Vs RE20
ZD403
ZD404
NC 0.1u 1R2
R502
C610 FE3 SPK ACK
47k
K506 R400 6
INPUT+2 OUTPUT2
3
IC501 470pF 1k R434
MONI R508 100 500mA
8 1 5 4
EECLK
VCC A0 INPUT-2 GND R412 R454 C605
10k TEST A1 C512 4.7 100 RE12 100p J402
GGND EEDAT EECLK
SCL A2 1000P C419 C416
COM2 EEDAT J403 NCON Q403 0.1u C604
AFDIR
AFSCK
10n 1K
T5C
AFDT
SAVE
CODIO
COM1
COM4
COM4
1
AFCO
AFCO
AF DET
C484 AFMUTE C499 ZD405 NC
R485 C432
470p
C413
AT2432N12.5S COM3 WCON R490 R489 R487 0.1u RE32 R414 470p EDZ6.8B
COM3 2 WCON TONEO 4.7K 0.1u
K504 COM1 T5C TONEO 47k C417
RE13 1K
COM1 3 T5C 4.7k 10k R419 33k R439 220K 1k
C445 0.1u
RE15 1K
GGND COM2 R5C 10k
FK2 COM3 COM2
OPTION1
4
SAVE
R5C
1u C444 FE5 TMMT717TA MIC JACK
COM4 OPTION1 5 SAVE C486 C485 R488 47P B+
COM5 CODIO
4700p 47k
1
RE8 COM5 6 CODIO 0.01u 500mA C415
PTTCO AFDT CE1 CE2
K503 CP505 PTTCO 7 AFDT
R460 R420 100u
AUX1 AFSCK
CP5091k*2
CP511 1K*2
CP512 1K*2
47K R556
1K R550
-
MIC_I 9 AFDIR C488 4.7u/6.3v ZD407
TXD R564 MIC_O
MIC_O
10
COM2
COM2
TC75W51FU DTC144EE EDZ6.8B
+
NC C607
4.7u/6.3v
TONEI SP_O COM1 C496
SP_0 11 COM1 RE33
PTT 1/2OSC SP_I COM3 100p
+ -
SP_I 12 COM3 C490 0 1U
1K*4 C5V
13
COM4
COM4 1k R415 R416 RE14 1K
0
C483
R418
R422
R421
MONI TXD 5CNS
18k
18k
14 TXD R498 R494 470 1.8k
SHIFT C5V TONEI R605 R606 10k
TONEI 15k 22k
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
C414 MIC801
8
FK CON14 TONECN CTC_OUT C5V
ALARM COM5
TONECN CTC_OUT 330K 2.7K C467 NC R5V C412 C498
COM5 C468 R443 C409
P42/A18
P43/A19
P44/CS0
P45/CS1
P46/CS2
P47/CS3
470p
P71/RxD2
P67/TxD1
P62/RxD0
P66/RxD1
P61/CLK0
P65/CLK1
P72/CLK2
1uF
P56/ALE
P60/CTS0
P63/TxD0
P64/CTS1
P70/TxD2
CTC_PLL
P57/RDY
P50/WRL
P53/BCLK
1000p
P54/HLDA
P55/HOLD
P51/WRH
PTT
PTTCO R441 R401 4.7k
51 25 COM5 AFRDF C401 0.1uF
P41/A17 P73/CTS2 AFRDF 82k 27k
52 24 R566 CTC_PLL
Q501 AFCK 0.022u
BLM11A601S
P40/A16 P74/TA2out AFCK C482
PTT
53 23 AUX1 2SC4617 R424
SP_O
R532 1K P37A15 P75/TA2in 1K DTC144EE AUX1 C494 Q408 0.1UF Q407
54 22 C410 R405 0
R469
SDATA R565 CTC_OUT 0.1UF R609
10K
P36/A14 P76/TA3out C491 R407 R404
CSN 55 P35/A13 P77/TA3in
21 1K C514 TONEO
TON EO
220
R608
0.47u 1k DTC114EE
SP_O
L401
56 20 PTTCO 15p APC/TV 1U 10k 0
R533 1K P34/A12 P80/TA4out APC/TV 100K Q411
57 P33/A11 P81/TA4in
19 AFRDF PLLUL
PLLU L 2SJ243 C402 R408
58 18 CP507 1K*2 AFCK PLLSTB
R492 D406 47p 1M R438
R444
P32/A10 P82/INT0 X501 PLLSTB
C545 59 P31/A9 P83/INT1
17 AUX1 R554 AFMUTE
AFMUTE 390k 0 R640 C407 RB7 06F-40 18k Q406 R486
R534 0.01U 60 16 9.8304MHz OPTION1 C422 DTA114EE 100k
1K ACC P84/INT2 R561 47K NC OPTION1 C480 C477 R471 C475 0.22u R440 0.022u
NCON 61 P30/A8
30622M4 P85/NMI
15 C546 1000P PLLDAT
PLLDAT MOD
MOD
2200p 560p 0.47u R403 C403 R491
R402
SP_I
62 14 C515 PLLCLK 10k 100k 1u 15k R497
AFCO
CP518 1K*4 63 VSS VCC
13 27P T/R
PLLCLK R481 0 R499 0 100k
P27/A7 IC506 XIN T/R R493 330k SP_I C404
64 12 22k
8
WCON GGND R510 APCSW
LEDR 65 P26/A6 VSS
11 PTT/RXD
APCSW 100k C479 0.1u
AUX1
0 R480
R476
LEDG 66 P25/A5 XOUT
10 GGND RESET VOX
PTT/RXD
1u C478 R475
10k
AFM UTE
10k 100k R470
+ -
P24/A4 RESET VOX 1u
67 P23/A3 P86/ Xcou t
9 R552 C516 27P BATTSEL
BATTSEL 68k IC402
VOX
68 8 R558 IC408 5CNS
TC75W51FU
P22/A2 P87/Xcin
1000p
0.1u
NC
C405
C476
33p
69 7 47k RSSI C425
C406
+
70 P21/A1 CNVSS
6 L504 RSSI
1U AK2346
SQL 5CNS
AUX1
P20/A0 BYTE 0.22UH SQL 1 24
-
CP519 1K*4 71 P17/INT5 P90/ TB0in
5 SHIFT TI
TI R479 R478 AGNDIN TEST
EN4
EN3
EN2
EN1
Q410
150p C473
72 P16/INT4 P91/TB1
4 SDATA 51k 27k C481 AGND RXIN R472 C457
CP516 73 3 SDAT A R641 2SJ243 33p TXIN RXINO 56k R425 C423
1
P15/INT3 P92/TB2in CSN 0.1UF
ALARM 74 P14/D12 P93 / DA0
2 CP517 1K*2 TONEO CSN
AUX1
AUX1 C489 TXINO RXLPFO C458 C427 150k 470p
DCSW 75 1 APC/TV R482* MIC_I 1uF LIMLV RXAF 0.1UF R442 R410 0.033u C420
P13/D11 P94/DA1 MIC_O
99 P97/ADtrg
EXTLIMIN RXAFIN
P95 / AN X0
R473
1800P
10k 4.7k
90 P105/IN5
91 P104/IN4
92 P103/IN3
93 P102/AN2
94 P101/AN1
96 P100/AN0
100 P96/ANX1
C430
47p
77 P12/D10
3.6864MHz
TDATA XOU T
SWB+ R474 0
CP524 1K*2 76
DI/O DIR
R557 12 13
C542 C541 C540 C539 GGND RDF/FD SCLK 1M
X402
0.01U 0.01U 0.01U 0.01U L502 0.22UH 100K C471 C470 C469
4
GGND
22p 15u/6.3v 0.1u
D504 C521 C520
R512 1K
R427
R568 1K
C524 C519
R563 1K
100K NCON
R528
R526
C526 NC 100k
R527
IC503
47K
47K
47K
47K
1K*2CP506
1
R555 1K
10k
0.1u
2 1
C523
R516 AFDT
GND
CP526 1K*4
1 8 C525 AFRDF
T VDD RES1 IC505 AFRDF
0 R504
47K TI R431
OPTION1
BATTSEL
PLLCLK
AFM UTE
PLLDAT
PLLUL
22k
APCSW
RSSI
MONI
R446 0.068u
T/R
VOX
PTT
SQL
IC502
TI
FK
5600p
IC407
2
C460
BATT
SWB+
LEDR
R429
100k
Q506 0.47UF
LEDG
C530
T5C
R5C
SWB+ C632
R506 C529 R630 R467 R462 1 8 22k
SELF
150k
Q505 0
R464
4.7u/6.3v
M5V 1000p
Q502 R461 - + + - R447
R631 R632
R562 C630 180k
0.01u
2SA1745 10K 10K 10k
C450
NC 1u + - R432 R459 R430 R452 R451
C452
T5V IC409 R463 10k 4.7k 100k 18k 18k
R522
1000P C447
Q507 R549 1
AGN DIN TEST
24 33P
2200p
DTC114EE DTC144EE C559 TC75W51FU
RE16 RE17 47K 1u AGND RXIN
C635
R465 C462 C466
200R 240R TXIN RXINO 150k C465 C464 1000p NC
R520 0.1U Comment:
4.7u/6.3v
0.01u C461
330K
220K
R521
TXINO RXLPFO
4.7K 1u 1u LIMLV RXAF 0.1u 0.01u
EXTLIMIN RXAFIN C636
D505 D506 MOD EXPOUT 0.01UF
VSS VDD M5V
TCLK XIN
15UF6.3V
C638
TDATA XOUT
22P
SDATA R634
SDATA DI/O DIR
C637
12 13 1M
RDF/FD SCLK
C639
22P
X630
3.6864MHz
AFSCK
AFSCK
CSN
CSN
73
TC-700 Ex PLUS Service Manual
Specifications
General
VHF: 136-174 MHz
Frequency Range
UHF: 420-470 MHz
Channel Capacity 16
Channel Spacing 25 /20/12.5 KHz
Frequency Stability ±2.5ppm
Operating Voltage 7.4V
Battery 1700mAh (Li-ion)
Battery Life (5-5-90 duty cycle) About 14 Hours
Operating Temperature -20℃~+50℃
Dimensions(H×W×D)
122×55×38mm
(with battery, without antenna)
Weight (with antenna & battery) 426g
Receiver
Sensitivity 0.25/0.35μV
Selectivity 70/60dB
Intermodulation 65dB
Spurious Response Rejection 70dB
S/N 45/40dB
Rated Audio Power Output 0.5W
Rated Audio Distortion ≤5%
Transmitter
RF Power Output 3W/0.5W
-36dBm<1GHz
Spurious and Harmonics
-30dBm>1GHz
Modulation Limiting ±5/±4/±2.5 kHz
FM Noise 45/40dB
Modulation Distortion ≤5%
All Specifications are tested according to TIA/EIA-603, and subject to change without notice due to
continuous development.
64
HYT endeavors to achieve the accuracy and completeness of this manual, but no warranty
of accuracy or reliability is given. All the specifications and design are subject to change
without prior notice due to continuous technology development. Changes which may occur
after publication are highlighted by Revision History contained in Service Manual.
No part of this manual may be copied, reproduced, translated, stored in a retrieval system,
distributed, or transmitted in any form or by any means, electronic or mechanical, for any
purpose without the express written permission of HYT.