Hytera TM-600 User manual

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CONTENTS
Revision History……………………………………………………………………
General………………………………………………………………………………
Radio Overview…………………………………………………………….………
Software Specification…………………………………………………………
Circuit Description…………………………………..…………………………..
Semiconductor Data………………………………………………………….
Component Description…………………………..…………………………
TM-600 Parts List 1…………………………………………………….…………
Tuning De scri pti on… ………… ………………… ………… ……….……
Trouble-shooting Flow Chart…………………………..………………
Disassembly and Reassembly for Repair…………………………………..
Exploded View……………………………………………………..……………
TM-600 Parts List 2…………………………………………………..………….
Packing………………………………………………...…………………………
Terminal Function…………… …………… …………… …………………
PC Board View…………………………………………………………………
Schematic Diagram…………………………………………………………….
Block Diagram……………………………………………………………….…
Specifications……………………………………………….…………………

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Revision History
Version Date Contents Revised
Parts No. 2006 September Initial release
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.
Precautions
Safety Standards
●DO NOT operate your radio when someone is either touching or standing within
2 or 3 feet of the antenna, to avoid the possibility of radio frequency burns or
related physical injury.
●DO NOT operate the radio near electrical blasting caps or in an explosive
atmosphere.
●Switch OFF the radio while refueling or parking at gas station.
●Turn off your radio in any place where posted notices instruct you to do so.
●DO NOT modify the radio for any reason.
●DO NOT expose the radio to direct sunlight over a long time, nor place it close to
heating source.
●DO NOT place the radio in excessively dusty, humid areas, nor on unstable
surfaces.
●Refer the service to qualified technicians only.
Operation Safety Guidelines
●For vehicles equipped with electronic anti-skid braking systems, electronic
ignition systems or electronic fuel injection systems, interferences may occur
during the radio transmission. If the foregoing electronic equipments are
installed on your vehicle, please contact your dealer for further assistance to
make sure that the radio transmission will not interfere with these equipments.
●For radio installation in vehicles fueled by LP gas with LP gas container within
interior of the vehicles, the following precautions are recommended for personal
safety.

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(1) Any space containing radio equipment shall be isolated by a seal from the
space in which the LP gas container and its fittings are located.
(2) Remote (outside) fitting connections shall be used.
(3) Good ventilation is required for the container space.
Installation Safety Guidelines
●Do not mount the mobile radio overhead or on a sidewall unless you take special
precautions.
●If someone were to remove the radio and fail to replace it properly, road shock
could bump the radio loose, and the falling radio could, in some circumstances,
cause serious injury to the driver or a passenger. In a crash, even when properly
installed, the radio could break loose and become a dangerous projectile.

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Radio Overview
Front Panel
① Volume Control Knob
Turn the knob clockwise to Tuning upwords and counter-clockwise downwards.
② LED Indicator and 8-segment Numeric LED
Please refer to “LED Indicator and 8-segment Numeric LED” section.
③ Programmable Function Key ([▲] / [▼])
Your local dealer can programme these keys as shortcut to various auxiliary functions.
Please refer to “Programmable Function Key” section.
④
④④
④ LED TX/RX Indicator
⑤
⑤⑤
⑤ Speaker
⑥
⑥⑥
⑥ Power Switch
⑦ Programmable Function Key ([P1]/ [P2])
Your local dealer can programme these keys as shortcut to various functions.
Please refer to “Programmable Function Key” section.
⑧
⑧⑧
⑧ Mic Jack
Used for the plug of microphone.

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Rear Panel Overview
① 15PIN (for external expansion)
② External Speaker Jack
Used to connect external speaker and only available for the plug of 3.5 mm
③ Power Inlet
Adopt HYT-authorized DC power cable and 13.6 V DC power.
④ Antenna Pedestal
Used to connect external antenna.
Microphone
8-segment LED Display
Figure 1 8-segment LED

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Software Specification
1 ．
．．
． Frame of Radio Modes
2 ．
．．
． Keypad Entry for Mode Startup
Mode Display Operation Remarks
User Mode
-------------------
---------------
Power on the radio to enter User
Mode
Conventional
Mode
Tuning Mode -------------------
---------------
Press and hold [P1] to turn the
radio on.
Model Set Mode -------------------
---------------
Press and hold [P2] to turn the
radio on.
Clone Mode C Press [P1] and [P2] simultaneously
to turn the radio on.
PC Mode --------------------------
---------------
Connect PC with mobile radio via
programming cable and send
commands via PC.
PC Mode
Tuning Mode
Conventional Mode
User Mode
Model Set Mode
Clone Mode
Wired Clone Mode
Wireless Clone Mode

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3 ．
．．
． Key Assignment
Programmable functional keys [P1]/[P2] and [▲] / [▼].
Key Assignment
No. Key Settings Display Remarks
1 [P1] Off CH Number None
CH Up CH Number Channel up
CH Down CH Number Channle down
MONI A CH Number
MONI A:
Monitor Unmute-Momentary
MONI B CH Number
MONI B:
Monitor Unmute-Toggle
MONI C [Default] CH Number
MONI C:
Carrier Squelch-Momentary
MONI D CH Number
MONI D:
Carrier Squelch-Toggle
User Selectable Tone
UST Number (0.-9.) CTCSS/DCS Signalling
Sel 2-tone
2-tone Number (0.-9.) Select 2-Tone encode
TX Power CH Number Switch TX power
Scan
●Scan
Add/Delet
●
Temporarily Add/Delete nuisance
channel
Reverse CH Number Reverse frequency
Talk Around CH Number Talk Around
SEL SQL
SQL Number (0.-9.) Selecte SQL
Home CH
HomeCH Number(1-8) Home channel
Public Address
P Public address

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Scrambler CH Number Scrambler
Compander CH Number Compander
Emergency call
EmergencyCH
Number (1- 8) Emergency call
2 [P2] Off CH Number None
CH Up CH Number Channel up
CH Down CH Number Channle down
MONI A CH Number
MONI A:
Monitor Unmute-Momentary
MONI B CH Number
MONI B:
Monitor Unmute-Toggle
MONI C CH Number
MONI C:
Carrier Squelch-Momentary
MONI D CH Number
MONI D:
Carrier Squelch-Toggle
User Selectable Tone
UST Number (0.-9.) CTCSS/DCS signalling
Sel 2-tone
2-tone Number (0.-9.) Select 2-Tone encode
TX Power CH Number Switch TX Power
Scan [Default]
●Scan
Add/Delet
●
Temporarily Delete nuisance
channel
Reverse CH Number Reverse
Talk Around CH Number Talk Around
SEL SQL
SQL Number (0.-9.) Select SQL
Home CH
HomeCH Number (1- 8) Home channel
Public Address
P Public Address
Scrambler CH Number Scrambler

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Compander CH Number Compander
Emergency call
EmergencyCH
Number (1- 8) Emergency call
3
[▲]
( [UP]) Off
CH Number None
CH Up [Default] CH Number Channel up
CH Down CH Number Channle down
MONI A CH Number
MONI A:
Monitor Unmute-Momentary
MONI B CH Number
MONI B:
Monitor Unmute-Toggle
MONI C CH Number
MONI C:
Carrier Squelch-Momentary
MONI D CH Number
MONI D:
Carrier Squelch-Toggle
User Selectable Tone
UST Number(0.-9.) CTCSS/DCS signalling
Sel 2-tone
2-tone Number(0.-9.) Select 2-Tone encode
TX Power CH Number Switch TX Power
Scan
●Scan
Add/Delet
●
Temporarily Delete nuisance
channel
Reverse CH Number Reverse
Talk Around CH Number Talk Around
SEL SQL
SQL Number(0.-9.) Select SQL
Home CH
HomeCH Number (1-8) Home channel
Public Address
P Public Address
Scrambler CH Number Scrambler
Compander CH Number Compander

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Emergency call
EmergencyCH
Number (1- 8) Emergency call
4
[▼]
( [DOWN])
Off CH Number None
CH Up CH Number Channel up
CH Down [Default] CH Number Channle down
MONI A CH Number
MONI A:
Monitor Unmute-Momentary
MONI B CH Number
MONI B:
Monitor Unmute-Toggle
MONI C CH Number
MONI C:
Carrier Squelch-Momentary
MONI D CH Number
MONI D:
Carrier Squelch-Toggle
User Selectable Tone
UST Number(0.-9.) CTCSS/DCS signalling
Sel 2-tone 2-tone Number(0.-9.) Select 2-Tone encode
TX Power CH Number Switch TX Power
Scan
●Scan
Add/Delet
●
Temporarily Delete nuisance
channel
Reverse CH Number Reverse
Talk Around CH Number Talk Around
SEL SQL
SQL Number(0.-9.) Select SQL
Home CH
HomeCH Number(1-8) Home channel
Public Address
P Public Address
Scrambler CH Number Scrambler
Compander CH Number Compander
Emergency call
EmergencyCH
Number (1- 8) Emergency call

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Note: the above “CH Number” indicates any number between 1 and 8.
4 ．
．．
． PC Mode
Connect the mobile radio with PC via programming cable. The data can be written to
the radio from PC, and then saved into the EEPROM. Data programming and radio
Tuning are accessible by programming software.
(1) LED glows green when data is written to the radio and red when data is read from
the radio. Radio will restart automatically when programming is completed.
(2) The following parameters can be set through the programming software.
●HighTX Power
●Low TX Power
●Maximum Frequency Deviation
●CDCSS Balance
●CTCSS Deviation
●CDCSS Deviation
●DTMF Deviation
●MSK Deviation
●Single Tone Deviation
●RX sensitivity
●Squelch Level 9
●Squelch Level 3
5. Clone Mode
Data can be transferred from radio to radio either by wired cloning or wireless cloning.
■ Wired Clone Mode
1 ） Press and hold down [P1] and [P2] simultaneously to power on the source radio. The
radio enters wired Clone mode with “C” displayed on numeric display and LED flashes
orange twice. Or the radio enters User Mode when Clone Mode is set by your local
5
Hook/Moni Hook test CH Number
Selected when using palm
microphone.
Moni CH Number
Selected when using
desktop microphone.
6
Selector
Knob Volume knob CH Number Volume knob

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dealer.
2 ） Press [Up] to toggle between Dealer Clone and Factory Clone Mode. “C” or “C.”
appears on the display when the corresponding mode is selected.
3 ） Unlike Factory Clone Mode, tuning settings and embedded messages are not
covered in Dealer Clone Mode. Factory Clone Mode clones all data. Dealer Clone Mode
is the default mode.
4 ） Connect the target radio with the source radio via programming cable and turn the
target radio on.
5 ） Press [P2] to start cloning. The LED of source radio glows red and that of target radio
glows green when cloning. When all data is successfully received, the target radio
automatically enters User Mode; otherwise, its LED flashes red.
6 ） Press [P2] to return the source radio to Clone Mode and “C” or “C.” appears on the
display. Repeat the above steps to continue wired clone.
■ Wireless Clone Mode
1 ） Press and hold down [P1] and [P2] simultaneously to power on the source radio. The
radio enters Wired Clone mode with “C” displayed on the display and LED flashes
orange twice. Or the radio enters User Mode when Clone Mode is set by your local
dealer.
2 ） Press [P1] to enter Wireless Clone Mode and “1” appears on numeric display. Press
[P1] again to exit and return to Wired Clone Mode.
3 ） Press [Up] to toggle between Dealer Clone and Factory Clone Mode. “1” or“1.”
appears on the display when the corresponding mode is selected. “1” indicates Dealer
Mode while “1.” Indicates Factory Mode. Press [Down] to select the channel for cloning
and its channel number displayed on the numeric LED.
Unlike Factory Clone Mode, Tuning settings and embedded messages are not covered
in Dealer Clone Mode. Factory Clone Mode clones all data.
Dealer Clone Mode is the default mode.
4 ） Repeat step1-2 to operate the target radio, the frequency is set the same as that of
source radio. Press [P2] on the source radio to start cloning.
5 ） The LED of source radio glows red while that of target radio glows orange during
cloning.
6 ） When data transmission is completed, the LED of source radio goes out. Repeat the
steps above to continue cloning. When all data is successfully received, the target radio
automatically enters User Mode; otherwise, its LED flashes red.

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Note: Clone Mode can be enabled/disabled by your local dealer. Wired clone is
accessible only when Clone Mode is enabled.
6. Tuning Mode
The operations of Tuning Mode are described as following:
1 ） Press [P1] to power on the radio. The radio enters Tuning Mode and its LED flashes red
twice.
2 ） Use [Up]/[Down] to select setting items among 0-9, A-F and （ 0.-9., A.-F. ） appears on the
display.
3 ） Sub-item and corresponding display:
i.As for setting items 0-9 and A-B: Press [P2] to enter the item and (0.-6.) appears on
the display. Press [Up]/[Down] to Tuning the parameter. Press [P2] again to save data
and move to next item; or press [P1] to return to previous menu without saving data.
ii. As for setting item C-F: Press [P2] to enter the item and (0.-4.) appears on the
display. Press [P2] again to automatically modify the parameter. The display changes
to (0-4). Press [P2] to save data and move to next item; or press [P1] to return to
previous menu without saving data.
Note: 0.: Center frequency; 1.: Low frequency; 2.: High frequency; 3.: Center frequency of
medium band; 4.: Center frequency of narrow band; 5.: Low frequency of narrow band;
6.: High frequency of narrow band; 7: Low-medium frequency; 8: Medium-high frequency.
Setting items and display
Setting item Main LCD
Wideband/
Narrowband Frequency Sub LCD Description
TX High Power
0 High frequency
Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
TX Low Power 1
Low frequency
Wideband
Center 0 ． No signalling, Low power
indicator on.
Low 1 ． No signalling, Low power
indicator lights.
High 2 ． No signalling
, Low power
indicator lights.
Max Deviation 2 Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
Medium Center 3 ． No signalling

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Narrowband
Center 4
． No signalling
Low 5 ． No signalling
High 6 ． No signalling
CDCSS Balance 3
Wideband
Center 0 ． 100Hz square wave
Low 1 ． 100Hz square wave
High 2 ． 100Hz square wave
Medium Center 3 ． 100Hz square wave
Narrowband Center 4 ． 100Hz square wave
CTCSS Deviation
4
Wideband
Center 0 ． CTCSS: 67.0Hz
Low 1 ． CTCSS: 67.0Hz
High 2 ． CTCSS: 67.0Hz
Medium Center 3 ． CTCSS: 67.0Hz
Narrowband Center 4 ． CTCSS: 67.0Hz
5
Wideband
Center 0 ． CTCSS: 151.4Hz
Low 1 ． CTCSS: 151.4Hz
High 2 ． CTCSS: 151.4Hz
Medium Center 3 ． CTCSS: 151.4Hz
Narrowband Center 4 ． CTCSS: 151.4Hz
6
Wideband
Center 0 ． CTCSS: 254.1Hz
Low 1 ． CTCSS: 254.1Hz
High 2 ． CTCSS: 254.1Hz
Medium Center 3 ． CTCSS: 254.1Hz
Narrowband Center 4 ． CTCSS: 254.1Hz
CDCSS
Deviation 7
Wideband
Center 0 ． CDCSS: 023N
Low 1 ． CDCSS: 023N
High 2 ． CDCSS: 023N
Medium Center 3 ． CDCSS: 023N
Narrowband Center 4 ． CDCSS: 023N
DTMF Deviation 8
Wideband
Center 0 ． DTMF: 9
Low 1 ． DTMF: 9
High 2 ． DTMF: 9
Medium Center 3 ． DTMF: 9
Narrowband Center 4 ． DTMF: 9
MSK Deviation 9
Wideband
Center 0 ． 0XAAA…
Low 1 ． 0XAAA…
High 2 ． 0XAAA…
Medium Center 3 ． 0XAAA…
Narrowband Center 4 ． 0XAAA…
Single Tone
Deviation A Wideband
Center 0 ． 1KHz
Low 1 ． 1KHz
High 2 ． 1KHz

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Medium Center 3 ． 1KHz
Narrowband Center 4 ． 1KHz
RX Sensitivity B
- Low 1 ． No signalling
， SQ off
- Low-medium
frequency 7
． No signalling
， SQ off
- Center 0 ． No signalling ， SQ off
- Medium-high 8 ． No signalling ， SQ off
- High 2 ． No signalling ， SQ off
SQL Open
C
SQL 9
Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
SQL 9 Medium Center 3 ． No signalling
SQL 9
Narrowband
Center 4 ． No signalling
Low 5 ． No signalling
High 6 ． No signalling
D
SQL 3
Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
SQL 3 Medium
Center 3 ． No signalling
SQL 3
Narrowband
Center 4 ． No signalling
Low 5 ． No signalling
High 6 ． No signalling
SQL Close
E
SQL 9
Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
SQL 9 Medium Center 3 ． No signalling
SQL 9
Narrowband
Center 4 ． No signalling
Low 5 ． No signalling
High 6 ． No signalling
F
SQL 3
Wideband
Center 0 ． No signalling
Low 1 ． No signalling
High 2 ． No signalling
SQL 3 Medium Center 3 ． No signalling
SQL 3
Narrowband
Center 4 ． No signalling
Low 5 ． No signalling
High 6 ． No signalling
7. Model Set Mode
1） Press [P2] to turn the radio on. The radio enters Model Set Mode after the LED

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flashes green twice. The selected model number is displayed.
2 ） Press [Up]/[Down] to choose model No. 0-4
3 ） Press [P2] to confirm. LED glows orange and the radio resets; then the radio enters
User Mode after reset.
Notes:
1. Once [P2] key is pressed to set the new model, the previously stored channel data
(frequency, CTCSS/CDCSS, channel function settings) will be cleared, and part of
functions also changes. Therefore, do not make this operation unless it’s very necessary.
2. Initialization Data Table and frequency range (FL: lowest frequency- FH: highest
frequency -FC: center frequency) of different models are shown in the following table.
Model RX/TX 1 ( C ) 2 ( L ) 3 ( H ) 4 5 6 7 8
0 RX(MHz) 155.15 136.15 173.85 145.55 164.50 155.00 155.20 155.40
（ V ） TX(MHz) 155.00 136.00 174.00 145.50 164.50 155.00 155.20 155.40
1 RX(MHz) 435.15 400.15 469.85 417.55 452.50 435.00 435.20 435.40
（ U1 ） TX(MHz) 435.00 400.00 470.00 417.50 452.50 435.00 435.20 435.40
2 RX(MHz) 475.15 450.15 499.85 462.55 487.50 475.00 475.20 475.40
（ U2 ） TX(MHz) 475.00 450.00 500.00 462.50 487.50 475.00 475.20 475.40
3 RX(MHz) 505.15 480.15 529.85 492.55 517.50 505.00 505.20 505.40
（ U3 ） TX(MHz) 505.00 480.00 530.00 492.50 517.50 505.00 505.20 505.40
4 RX(MHz) 375.15 350.15 399.85 362.55 387.50 375.00 375.20 375.40
（ U4 ） TX(MHz) 375.00 350.00 400.00 362.50 387.50 375.00 375.20 375.40
TM600V：136-174；
TM600U1：400-470；
TM600U2：450-500；
TM600U3：480-530；
TM600U4：350-400；
CH 1 2 3 4 5 6 7 8
CTCSS RX OFF OFF OFF OFF CTS67.0HZ
DI454 151.4 DI454
CDCSS TX OFF OFF OFF OFF CTS67.0HZ
DI454 151.4 DI454
PWR TX H H H L L L L L
CH NAME
CH 1
Wide
CH 2
Wide
CH 3
Wide
CH 4
N
CH 5
Wide
CH 6
Wide
CH 7
N
CH 8
N

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Circuit Description
1. Frequency Configuration
The receiver utilizes double conversion superheterodyne. The first IF is 49.95MHz and the
second is 450KHz. The first local oscillator signal is supplied by PLL circuit; and the
second (50.4MHz) is generated from the frequency tripling of TCXO (16.8MHz). The PLL
circuit generates the frequencies required for transmission. (See Fig.1).
Frequency Range: 136MHz - 174MHz
400MHz - 470MHz ；
450MHz - 500MHz ；
480MHz - 530MHz ；
350MHz - 400MHz ；
2. Receiver Circuit
The receiver section configuration is shown as Fig. 1.

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Fig 1 Receiver Circuit
2.1 RF AMP BPF
It consists of BPF (LC resonant circuit where D107, D108 and D109 are located) and RF
amplifier (Q111). The range of bandpass frequency is the frequenc range of the radio itself.
The signal is filtered by the BPF to eliminate unwanted signals before going to the first
mixer.
2.2 The First Mixer
The signal from BPF is mixed with the first local oscillator signal from PLL circuit at the first
mixer (Q112) to become a 49.95MHz first IF signal. The first IF signal is then fed through
crystal filter (XF200) to further remove spurious signals.
2.3 IF Amplifier
The first IF signal is amplified by Q113 and then enters IC102 (TA31136FN), where the
signal is mixed again with the second local oscillator signal (50.4MHz) to become a
450KHz second IF signal. The second IF signal is then fed through a ceramic filter (N:
CF202; W: CF203) to eliminate unwanted signal. The resulting signal then is detected by
IC102 and output from Pin 9 as an AF signal.
2.4 AF Amplifier
The audio signal obtained from IC102 is amplified and filted by IC402 before being
amplified by IC401 (the received signalling inputted into CPU for decode). The processed
signalling passes through Q405 (AF MUTE) and is amplified by IC405. The amplified
signal is fed to K301 (volume control), Q511 (SP MUTE) before entering AF AMP (IC511).
The outputted AF signal drives the Speaker.
2.4 Squelch
The output AF signal from IC102 passes through IC102 Pin8 and is amplified by IC102
again, then is filted and rectified to produce an ASQ level. The ASQ level is comparaed
with the existing reference level in CPU (IC502) to genereate a level to control AF MUTE
and SP MUTE, which determines whether to output sounds from speaker by controlling
Q405 and Q511.
3. Transmitter Circuit
The transmitter circuit is composed of MIC circuit, modulation circuit, RFdirver, final power
amplification circuit and APC circuit.

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Fig 2 Transmitter Circuit
3.1 MIC and modulation circuit
The audio signal from MIC is amplified by IC405 before being pre-emphasized and
encoded by IC401. The output audio is added into signalling and then is fed through VCO
for modulation.
RF Driver and Final Power Amplification Circuit
The TX-RF signal outputted from Q703 in VCO circuit is amplified by Q101, driver Q110
and Q109, The amplified signal is then fed to IC101 (final PA) and passes through LPF
before reaching the antenna terminal.
3.3 APC
The APC circuit stablizes the output power at a predetermined level. D101 and D102
transform the signal from detector to DC voltage, which is then compared with the
reference voltage from CPU in IC104 and outputted as DC control voltage. The DC control
voltage controls the output power by controlling the grid of IC101.
4. PLL Circuit
The transmit signal and the receive first L.O. signal are generated by PLL circuit. PLL
circuit consists of TX frequency oscillator (Q701), RX frequency oscillator (Q702), buffer
amplifier (Q703), RF amplifier (Q102), PLL IC (IC801), LPF and TX/RX VCO control
switch (Q704, Q706).

第 20 页 共 57 页
In transmit mode, IC120 transmits the frequency data to PLL IC. Q704 is turned on to
activate TX VCO. The outputted signal is amplified by Q703, Q102, and then divided by
PLL IC into 2.5KHz, 5KHz or 6.25KHz signal. The divided signal is compared with 2.5KHz,
5KHz or 6.25KHz reference signal from 16.8MHz crystal oscillator (2.5 PPM frequency
stability) in the phase comparator. The frequency control voltage outputted from the phase
comparator is sent to TX VCO after passing through LPF (Q802, Q803). In the meantime,
modulation signal (TX) is passed to TX VCO for frequency modulation.
The working principle in receive mode is similar to that in transmit mode.
Fig 3 PLL Circuit
5. Control Circuit
The control circuit is composed of CPU, reset IC and power supply control circuit.
5.1 CPU
IC502 (CPU) operates at 9.8304MHz. CPU controls the data transmission among
E2PROM (IC501), RX circuit, TX circuit, control circuit, display circuit and peripheral
circuit.