How it Works
Kirisun
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TP660
Service Manual
68 pgs4.46 Mb0
User Manual
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Datasheet
2 pgs4.41 Mb0
Table of contents
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Kirisun TP660 Service Manual

TP660 Service Manual
TP660 Service Manual
Contents
1. Overview ...................................................................................................................................................... 1
1.1. Scope ............................................................................................................................................................... 1
1.2. Safety Precaution ............................................................................................................................................. 1
2.1. External Views and Functional Keys................................................................................................................ 2
2.2. LED Indicator ................................................................................................................................................... 2
3. Circuit Description ...................................................................................................................................... 3
3.1. Tx/Rx Signal Procedure ................................................................................................................................... 3
3.1.1. Tx Circuit ....................................................................................................................................................... 3
3.1.2. Rx Circuit ....................................................................................................................................................... 4
3.1.3. Frequency Synthesizer Circuit ...................................................................................................................... 6
3.2. Power Section .................................................................................................................................................. 6
4.1. Conventional Functions ................................................................................................................................... 8
4.2. Function Parameter Settings ........................................................................................................................... 8
5.1. Attaching and Detaching the Battery ............................................................................................................. 12
5.2. Attaching the Antenna .................................................................................................................................... 12
5.3. Attaching the Belt Clip .................................................................................................................................... 13
5.4. Separating the Shell from the Chassis .......................................................................................................... 13
5.5. Disassemble the Main Board from the Chassis ............................................................................................. 14
5.6. Separating the Keyboard from the Front Cover ............................................................................................. 15
5.7. Exploded View ............................................................................................................................................... 16
6.1. Components for Adjustment ........................................................................................................................... 18
6.2. Adjustment Test Method ................................................................................................................................ 19
6.2.1. Frequency Description ................................................................................................................................ 19
6.2.2. T est Tools .................................................................................................................................................... 19
6.2.3. Tx T est and Modulation ............................................................................................................................... 19
6.2.4. Rx T est and Modulation ............................................................................................................................... 21
8. Maintenance and T est Equip ment ........................................................................................................... 24
9. Troubleshooting ........................................................................................................................................ 25
Appendix ....................................................................................................................................................... 26
List 1 Material List（Electronic Section 400-470MHz） ...................................................................................... 26
List 2 Material List（Electronic Section 136-174MHz） ...................................................................................... 37
List 3 Material List (structure material) .................................................................................................................... 47
Figure 1 TP660 Main Board Top Side PCB View (400-470MHz) ........................................................................... 50
Figure 2 TP660 Main Board Bottom Side PCB View (400-470MHz) ...................................................................... 50
Figure 3 TP660 Main Board Top Side PCB View (136-174MHz) ........................................................................... 51
Figure 4 TP660 Main Board Bottom Side PCB View (136-174MHz) ...................................................................... 51
Figure 3 TP660 keypad Top Side PCB View .......................................................................................................... 52
Figure 4 TP660 keypad Bottom Side PCB View ..................................................................................................... 52
Figure 5 TP660 Mainboard Schematic Diagram(400-470MHz) ............................................................................. 53
I
TP660 Service Manual
Figure 6 TP660 Mainboard Schematic Diagram(136-174MHz) ............................................................................. 59
Figure 6 TP660 Keyboard Schematic Diagr am ...................................................................................................... 65
II
TP660 Service Manual
1. Overview
1.1. Scope
This manual applies to the serv ice and mainte nan ce of TP660 digital portabl e radi os, and it is intended for use only by engineers and professional technicians trained by Kirisun. Data changes in this manual may occur with the improvement of technology. To get the latest technology information, please contact us or your local dealer .
Please read this manual before repairing the radio.
1.2. Safety Precau tion

Electromagnetic Radiation

Radios generate and radiate electromagnetic energy. The security design of TP660 radio’s electromagnetic radiatio n on human meet s nat iona l and intern ation al st andar ds . To ensure radio’s optimal performance and safe electromagnetic radiation on human, please keep the radio vertical to the ground and 2-5 cms away from your m outh.

Electromagnetic Interference

To avoid electromagnetic interference, please turn off the radio wherever there are clear warnings, e.g. hospitals, health car e centers, airports, where radios must be turned off.

Explosive and Harmful Gases

The radio should be turned off in area s wit h explosiv es and har mful gases, e.g. lower deck of the hull, fu el and chemical storage fac ilities, ar ea where the air contains chemicals, particles, dust or metal dust.
Please turn off the radio when close to blasting are a and electric blasting deton at or s. Replacing or charging batt er ies in pot entially explosiv e at mosp her e i s pr ohibited.

Antenna Damage

Do not use radios when the antenna is damaged. Damaged antenna may cause m il d bur ning to human skin.

Replacing Components

When replacing components, please be awar e of the model. Do not arbitrarily replace any component s that do not match Kirisun’s requirement.
Page 1 of 65
TP660 Service Manual
2. Introduction
2.1. External Views and F unctional Keys
No. Part Name No Part Name

A LED Indicator H Programmable Button (SK2)

B Antenna I Return Key C Channel Selector Knob J Up Key/Menu
D Emergency Button K Down Key E On/Off/ Volume Control Knob L Con f irm Key
F Programmable Button (SK1) M Keypad
G PTT Button N
Earphone/Programming Connector
2.2. LED Indicator
• The LED glows red: The radio is transmitting.
• The LED glows green: The radio is receiv ing (voice mail, messa ge, dat a) or ac tivit ies on the channe l are
Page 2 of 65
TP660 Service Manual
ANT
LPF
RF AMP Q505
MCF
IF AMP Q507
GT3136
450K
AF AMPAF PA
SPK
D501
D503
D504
XF501 49
.95MHz
U102 NJM2902
IC101
TDA
8547
TX/
RX
SW
BPF
BPF
MIXER
CF501 450H
16.8MHz TCXO
16.
8MHz
To 50.4MHz
Q605
X
601
Q509 450_IF AMP
CODEC
U201 HR
_C
5000
Q
506 3SK318
PLL
2
SK
72310
Loop Filter
TX VCO
RX VCO
Buffer
PA
Pre
-driver
PA
driver
PA
Final
Q504 2
SC
3356 Q
503 2SC
3356 Q502 RD01 Q501 RD07
MIC
AF
AMP
CODEC
MOD_I
MOD_Q
U103 NJM2100
ANT
LPF
D501 D503
D504
TX/RX
SW
16.8MHz TCXO
X601
U201 HR_C5000
PLL
2SK72310
Loop Filter
TX VCO
Buffer
PA
Pre-driver
PA
driver
PA
Final
Q504 2SC3356 Q503 2SC3356 Q502 RD01 Q501 RD07
MIC
AF
AMP
CODEC
MOD_I
MOD_Q
U103 NJM2100
BATT+
APC
APC
U502
detected.
• The LED glows orange: The radio is sc anning.
3. Circuit Description
3.1. Tx/Rx Signal Proce du r e
Figure 3-1 RF Princ iple of Rec e iv er
3.1.1. Tx Circuit
Figure 3-2 Tx Circ uit Diagram
Tx circuit mainly includes four parts below:
• RF Power Amplifier Circuit The carrier signal generated by VCO will be modulated and preliminarily amplified before entering Tx
circuit. The signal will first pass a Π-type pure resistance attenuator R536 R537 R538 to realize the level isolation between the power amplifier circuit and Tx VCO; then the modulation signal will enter the first
Page 3 of 65
TP660 Service Manual
ANT
LPF
RF AMP Q505
MCF
IF AMP Q507
GT3136
450K
AF AMP
AF PA
SPK
D501 D503
D504
XF501
49.95MHz
U102 NJM2902
IC101 TDA8547
TX/RX
SW
BPF
BPF
MIXER
CF501 450H
16.8MHz
TCXO
16.8MHz
To 50.4MHz
Q605
Q509 450_IF AMP
CODEC
Q506 3SK318
PLL
2SK72310
Loop Filter
RX VCO
U201 HR_C5000
U301
STM32F
300Hz
LPF
U101
CTCSS/DCS
level pre-drive amplifier (Q504) for preli minary amplification, and ge nerate a ce rt ain level isolation fro m the next level amplifier; the amplified signal will then enter the next level pre- drive amplifier (Q503 and drive amplifier (Q502 RD01)) for further power amplification so as to ensure that enough drive power sign al ca n be offered to the end-level power amplifier (Q501 RD07) for final power amplification. After being processed by the a set of amplifiers at several levels, the Tx signal will complete the output impedance match through a microstrip line at the output terminal of the end-level power amplifier, so the output power loss caused by impedance mismatch can be avoided. The Tx signal will enter the low pass filter through the Rx/Tx switch.
• Low Pass Filter Circuit for Harmoni c Su ppression Low pass filter which suppress harmonic is a high order low pass filt er consisting of lumped inductor and
capacitor. With this filter , the out-of-band harmonic wave and spurious s ignal can be further suppres sed on the condition that the certain in-band f luctuation is satisfied.
• Auto Power Control Circuit ( APC) The drain current from the drive power amplifier and end-level power amplifier passes the sampling
resistor (R559 R560 R561) where the drain current completes the conversion from current to voltage with the subtraction circuit composed of the first operational amplification. The voltage will be compared with the PAC control voltage value output by DAC (U301 pin 29) at the second operational amplifier, and the deviation voltage will change the Tx power strength by controlling the grid bias voltage of power amplifier tube(including drive lev el and end level).
• Audio Processing The microphone convert the speech signal to speech electric signal, and the signal will be amplified by
U103 before being input in to ADC of codec (U201 HR_C5000) for s a mpling; it w ill then b e outp ut int o D SP after audio being digitally processed, and sent to DAC for modulation signal conversion; the modulation signal will be separate d into path I and Q for modul ating VCO, TCXO.
3.1.2. Rx Circuit
Figure 3-3 Rx Circuit Diagram
Rx circuit mainly includes: RF band-pass filter, low noise amplifier, frequency mixer, IF filter, IF amplifier, IF processor and audio
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TP660 Service Manual
circuit.
• Rx Circuit RF Part The high frequency signal from low-pass filter passes the front stage electrically tunable band-pass filter
controlled by electric level and o utput by D AC (U301 PIN29 ) so as to filt er out t he out-of-band interfere nce signal, sending ef fec tive b and-p ass signa l into the low noise amplifier (Q 505) . The amplified signa l p ass es again the band-pass filter controlled by electric level and output by DAC so as to filter out the out-of-band interference signal caused by amplification, sending effective high frequency signal into frequency mixer (Q506).
The effective signal passes RF band-pass filter and low noise amplification and enters the frequency mixer Q506, meanwhile, the first local oscillation generated by VCO passes the low-pass filter and enters Q506 for making frequency difference with effective signal so as to generate the first IF signal. The signal passes th e frequenc y selector network which consists of LC; it further suppresses the other carrier waves other than the first IF, and increase the isolation between the frequency mixer and IF filter. The IF signal will be filtered by the XF501 crystal filter, and then sent to the first IF amplifier（Q507） for am pl ifi cation before being sent to the IC for IF processing (U501, GT3136).
The third harmonic frequency 50.4MHz produced by TCXO(X601 16.8MHz) is amplified by frequency selector and become the second local oscillation signal source. The second local oscillation (50.4MHz) mixes with the first IF signal in U501, generat in g t he s econd I F ( 450kHz). The second IF will be amplified, limiting am plitud e inside U 501, and filter ed by the ceram ic filter CF50 1 450 kHz before going back to U501 for demodulating and outputting the audio signa l.
• Rx Circuit Audio Section A. Digital Channel Audio Access: The second IF signal output from the eleventh pin of U501 is amplified
by Q509 and sent to U201 for ADC sampling and being converted to digita l signal; af ter t he digital audio signal is compressed, decompressed and decoded by U301, U201 will complete DA conversion and output audio signal from the 10th pin, and the audio signal will be amplified by U203 and sent to the audio power amplifier IC101.
B. Analog Channel Audio Access: The audio signal out put from the 9th pin of U501 is ampl i fi ed by U102
and its unit circuit. The high frequency and low frequency will be removed from the audio signal, keeping only the voice compone nt between 300 Hz to3000 Hz . The v oice compone nt will be ad juste d by volume potentiometer and sent to audio power amplifier IC101.
C. Analog Channel CTCSS/DCS Signaling Access: The audio signal output from the 9th pin of U501
may include CTCSS/DCS signal. The 300Hz low-pass filter circuit composed of U101 filters out the signals out of the CTCSS/DCS spect rum. After CTCSS/DCS is amplified, it will be sent to the 25th pin of U301.
D. Analog Channel Squelch Circuit: The modulated output from U501 is sent to the frequency selector
noise amplifier which is composed of U501 internal noise amplifier and C555，R525，R524，C554， C553，R527; the noise will be selected from the modulation si gnal and detected internally before being outputting by the 14th pin and transformed as direct electric level to reach MCU U301; MCU identifies the electric level strength and controls squelch.
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TP660 Service Manual
16.8MHz TCXO
U601
2SK72310
LPF
X601
Loop Filter
TX VCO
RX VCO
LD
CS DATA PS
MOD_Q
MOD_I
RF
3.1.3. Frequency Synthesizer Circuit
Figure 3-4 Frequency Sy nthesizer Circuit Diagram
Frequency synthesizer circuit is composed of VCO and PLL, and it is the kernel module of the whole TRx system. When transmitting, the circuit supplies accurate carrier frequency; when receiving, it supplies stable local oscillati on signal. The circu it directly influences som e of the important functions in the system.
• PLL Working Principle The 16.8MHz frequency generated by the reference crystal oscillator enters the frequency divider of PLL
chip, and becomes referenc e freque ncy (i.e. step freque ncy f1). The frequency generated by VCO passes LPF for filtering out the second harmonic wave and enters PLL chip for frequency division and gets frequency f2. The frequency f2 compared with f1 on phase difference in phase comparator, producing continuous pulse current. When the pulse current passes the loop filter, it starts to accumulate RC and converts to CV voltage. The CV voltage is sent to the VCO varactor, directly controlling and adjusting the VCO output frequency until CV becomes constant. PLL will be currently locked, and the stable frequency output from VCO pass es t wo buffer amplifiers before entering the TR x access.
• The Working Principle of Voltage Controlled Oscillator The voltage controlled oscillator applies oscillation mode of three point capacitor. It changes the control
voltage of varactor to get different output frequency. Rx VCO is composed of oscillator circuit and Q603. Tx VCO is composed of osci llat or c ircuit and Q601, supplying car r ier w ave of TX signal.
3.2. Power Section
Figure 3-5 Power Structure Diagram
Page 6 of 65
TP660 Service Manual
Battery
SW401
POW_DET
POW_HOLD
RF PA
AF PA
U404
LDO
U403
LDO
U402
LDO
U401
DC-DC
5C
5R
5T
3.3V
Q401
Q402
U301
STM32F
SAVE
5RC
5TC
This radio applies 7.4V，2000mAh lithium battery, RF power amplification (Q501, Q502), AF power amplification (IC101) , and direct battery power supply.
The power circuit is composed of power-on/off circuit, 5C, 5R, 5T, and 3.3V DC-DC voltage stabilizing circuit.
Power-on Circuit: When SW 401 is closed, the B level of Q402 becomes high electrical level, and the switch tube Q401 becomes conductive. The power supplies electricity for every power module through Q401, when MCU is powered on, POW_HOLD will output high electric level to keep Q401 constantly conductive so as to turn on t he r adio.
Power-off Circuit: When SW401 is cut off, POW_DET test pin becomes low electric level, and POW_HOLD pin of MCU will first st ays on high e lectric level for a w hile before out putting low elect ric level. The Q402 B level thus becomes low electric level, cutting off the switch tube Q401 and the power to turn off the radio.
5C voltage stabilizing circuit: U404 applies 5V LDO voltage stabilizer and supply 5v power for PLL circuit. Meanwhile, the 67th pin of U301 outputs high and low electric level to control the enable pin of U404, making the voltage stabilizer switches between 5V and 0V so as to realize the functions such as energy saving and Tx/Rx switch.
5R voltage stabilizing circuit: U403 applies 5V LDO volt age sta bilizer, and supplies 5V power for Rx circuit. Meanwhile, the 66th pin of U301 outputs high and low electric level to control the enable pin of U403, making the voltage stabilizer switches between 5V and 0V so as to realize the functions such as energy saving and Tx/Rx switch.
5T volt age st abil izing c ircuit : U402 applies 5V LDO voltage stabilizer, and supplies 5V power for Tx circuit. Meanwhile, the 34th pin of U301 outputs high and low electric level to control the enable pin of U402,
Page 7 of 65
TP660 Service Manual
making the voltage stabilizer switches between 5V and 0V so as to realize the functions such as energy saving and Tx/Rx switch.
voltage stabiliz ing circuit:U401 applies 3.3V DC-DC voltage stabilizer，and supplies 3.3V power for U201、 U301、U302、U307.
4. Function Description and Parameter Settings
4.1. Conventional Functions
• Supports private call, group cal l, al l cal l i n dig ital mode
• Supports end-to-end voice encryption, data encryption
• Supports short message
• Supports radio check, remot e monitor, radio disable and radio enable dig it al si gnalin g in DMR st an dard.
• Supports CTCSS/CDCSS on ana log mode
• Supports DTMF system on ana log mode
• Supports emergency alarm feat ur e
• Supports digital channel sc anning, analog channel scanning, and digital/an alog mix scanning.
• Supports a maximum of 1000 channels
• Supports a maximum 250 regio ns with each region contai ning 128 channels.
• Supports a maximum of 512 contacts.
• Supports LED, and alert tone which indicates option
• Supports programmable selection between 12.5 kHz and 25 kHz channel spa cing.
• Strength indicat ion for r eal time signal
• Battery power indication
4.2. Function Parameter Settings
The radios are set with default value when t hey are o ut of the factor y. But due to the different requ irement s by the users, the rad io ma y be reset with operational frequency, channel parameter, scanning, encryption, etc. Therefore, Kirisun specially designs a user programmable software which is interface-friendly, operation-easily and display-visually to complet e t he parameter sett ings for the radio.
• Steps for p ar am eter settings are as below: Step 1. Confirm that the right ver sion o f TP 660 us er progra m mabl e sof tw are is installed on the computer. Step 2. Confirm that the right version o f TP660 USB driver software is instal le d on t he computer. Step 3. Use TP660 programmable lead supp lied by Kirisu n to connec t the r adio w ith c omputer US B port. Step 4. Confirm that the radio is powered on.
Page 8 of 65
TP660 Service Manual
Step 5. Operate TP660 user programming software.
• Steps for installing TP660 user pr ogrammable software are as below: Step 1. Double click the installat ion file, and the interface in Fig ur e 4-1 pops up.
Figure 4-1
Step 2. Click “Next” to enter the next interface for selecting software installation path.
Figure 4-2
Page 9 of 65
TP660 Service Manual
Step 3. As shown in figure 4-2, the user can click “Browse” to select the s oftware inst all at ion path or the
default installation path. Click “Next ” t o ent er t he installation confirmation interface. Figure 4--3
Step 4. Click “Next” to enter the installation completion interface.
Figure 4-4
Step 5. Click “Finish” to complete the software installation.
Page 10 of 65
TP660 Service Manual
Figure 4-5
Step 6. After the installation, double click T P660 user programmable software. See figur e 4-6.
Figure 4-6
The user can read the current parameter settings from the radio through TP660 user programmable software, and the parameter can also be res et .
Note:
1. Wrong parameter sett in gs may cause malfunction. Normally, rewrite the correct parameter settings can solve the problem.
2. Before rewriting the parameter settings, reading th e parameter settings out of the radio for bac k-up is strongly recommended i n case t hat the recovery is neede d once the radio becomes faulty.
5. Assemble and Disassemble Instructions
This radio is sophisticated communication equipment with compact, precise mechanism. Please be careful during the att ac hing and detaching.
The attaching and detaching instruct ions are as below:
Page 11 of 65
TP660 Service Manual
5.1. Attaching and Detaching the Batter y

Attaching the battery

Press the belt clip and push the battery pack forwards in the arrow direction until a click is heard, which indicates that the battery pack is properly fixed. (see figure 5-1)
Figure 5-1

Detaching the battery

When detaching the battery, press the latch in the direction shown in figure 5-2, and use other hand to push the battery backwar ds unt i l it is separated from the rad io.
Figure 5-2
5.2. Att aching the Antenna
Hold the antenna base, turn the antenna clockwise into the interface on the radio top until it is fastened.
Page 12 of 65
TP660 Service Manual
(see figure 5-3) Figure 5-3
5.3. Attaching the Belt Clip
Step 1. Press the belt clip and align the two screw holes with those on the back aluminum shell. (See
figure 5-4)
Step 2. Fasten the two screws. Figure 5-4
5.4. Separating the Shell from the Chassis
Step 1. Detaching the antenn a. (see figure5-5 and 5-6)
Page 13 of 65
TP660 Service Manual
Step 2. Remove the knob and snap ring. Step 3. Remove the two knob nut and antenna nut. Step 4. Remove the four screws a s show n in the figure below. Step 5. Insert a flat screw driver int o t he seal groove of the aluminum bracket, and push it upwards to
remove the zinc cover; push t he a luminu m brac ket bac kwards to make it out o f t he she ll, and t a ke out the flex cable from the socket.
Figure 5-5 Figure 5-6
5.5. Disassemble the Main Board f r om the Chassis
Step 1. Remove the main board screw s and PTT, PCB screws.(see figure 5-7) Step 2. Remove the top waterproof ring and use a soldering iron to solder of f the antenna, then the mai n
board can be separat ed from the aluminum bracket .
Figure 5-7
Page 14 of 65
TP660 Service Manual
5.6. Separating the Keyboard from the Front Cover
Remove the four front cover sc r ew s to separate the keyboar d from the front cover.(see figure 5-8) Figure 5-8
After the detachment above, the mainte nance and adjustment can be do ne accordingly.
Page 15 of 65
TP660 Service Manual
1
2 3 4 5 6 7 8 9 10 11 12 13
14
15 16
23
24
16
25
26
27
28
17
18
19
20
21
22
2930313233343536
37
38
39
40
27
41
42
44
45
46
47 48
16
43
15
49
1
PT7800 PTT cover(cover die) PC+ABS, black, 2010B, pb-free
1
3
PT7800 lens double-si ded adhesive NITTO57120,43.4*28.2MM, supplier:
1 pb-free
5.7. Exploded View
No. Part Name, Specif i cat i on and Model Number Unit
2 PT7800PTT keypad silica gel, black, hardness 60 degrees, supplier:
Mingkun, pb-free
Xinlongda, pb-free
4 PT7800 TP660 lens PC, transparent, screen printing KIRISUN+ black,
1
1
Page 16 of 65
TP660 Service Manual
5
TP660 shell PC+ABS, black, 2008B, #4-40 nut，pb-free
1
7
PT3208 spring material: spring st eel, nikle-plated, wire diameter 0.2,D
2 flexible board, ;27.5X24.3MM;2 layers, pb-free
12
TP660-02 interface board, TP660-02_IO_140818, 2.0MM thick;
1
13
PT7800 earphone cov er (cover die) PC+ABS, black, 2008B,1405mode
1 IP black、pb-free
pb-free
19
spacer，φ3.0*5.0*0.3mm
2
21
TP660 keyboard jacking, pb-free
1
22
KB-78B battery, lithium polymer battery, 7.4V，2000mAh, pb-free
1
23
PT7800top cover (cover die) PC+ABS, black,s 2008B, pb-free
1
24
KBJ-09 belt clip, 568 belt clip (end item),PC+ABS, black, pb-free
1
26
PT7800 roof cover 0.5MM,SUS304,pb-free
1
6 PT7800 horn net material: black 250+nitto57120b,diameter φ36mm*
1
0.3mm thickness, with two-sided adhesive
external diameter 2,H length 9.5,circling 11 8 PT7800 1.2MM,IP vacumm plating, supplier: Junyu, pb-free 1 9 PT7800 battery latch (cover die) PC+ABS, embedded latch baffle, black,
1
2008B, pb-free 10
TP660-02 accessory FPC TP660-02_ACC_FPC_140819; 0.1MM thick；
11 TP660 earphone PCB board, double-sided adhesiv e 0.4mm thick,
1
1
NITTO 57120B double-sided adhesive
FR4,12.5X25MM； four layers，pb-free
changing，pb-free 14
R M3*4 earphone cover screws 、SUS303、＃ 4-40 thread、
vacuum plating,
1
15 O-type ring, D2.4X1.0MM, pb-free 2 16 M2.5*8 cross round flat machine screw. material: hardened
4 iron,Φ2.5mm*8mm. Cross round flat black zinc-plated machine thread, metric coarse thread.
17 PT7800 mic-head waterproof p ad. Material: DY-E002A; breathable film,
1 φ6.6xφ4.4, pb-free
18 PT7800 digital keypad. METAL DOME sixteen D6 square metal dome,
1
20 R 558 mic cover; material: silica gel, hardness 40,orange, no surface
1 processing
25 PT7800 roof waterproof ring, silica gel, orange, hardness 60 degrees,
1 pb-free
27 M2*4 cross round flat machine screw. material: hardened iron,
19 Φ2mm*4mm cross round flat nickel-pl ated mac hine thread, metric coarse thread
28 PT7800 big w aterpro of ring, silica gel, black, hardness 40 degrees, pb-free 1
29 PT7800pedesta l w at er pr oof pad, silica gel, black, hardness 60 degrees,
1 pb-free
30 M2*8 plum-type thick-headed machine screw. material: hardened iron,
2 Φ2mm*8mm plum-type thick-headed nickel-plated m achine threa d, metric
Page 17 of 65
TP660 Service Manual
coarse thread
32
PT7800aluminum alloy bracket; aluminum alloy (ADC12),grinding,
1 pb-free
40
Antenna. R antenna 400-470MHZ，length：140mm.` SMA-K,TPEE black
1
41
PT7800 channel knob ABS, black , 2012B, pb-free
1
φ10mm, 3.5mm thick, black passivation
47
PT7800 guide beam PC, transparent, pb-free
1
49
PT7800 PTT side cover PC+ABS, black, 2008B/2010B, pb-free
1
31 RF coaxial connector an al og r adio SMA-J, flange plate (558,hole14mm,
chip length10.5mm)
polishing, pb-free
33 PT7800top waterproo f pad silica gel, black, hardness 60 degrees, pb-free 1 34 TP660 mainboard jackin g, pb-free 1 35
36 PT7800 PTT button metal dome. three D6 square metal dome,pb-free 1 37 R 6500LCDdust-proof pad. material: black foam 1 38 PT7800 keypad black +637C + white(laser carving), hardness 60 degrees,
39 7800 horn PT7800-05 Φ40,H=17±0.1mm,impedance16Ω, power 1.5W.
42 PT7800 volume knob ABS, black, 2012B, pb-free 1 43 R 3118/3208 knob s nap r ing. material: spring st eel 1 44 PT7800 programming knob snap ring. 0.3MM,stainless steel, pb-free 1 45 Switch nut. material: brass, internal diameter M6mm, external diam eter
TP660 PTT board TP660-02_PTT_131127.PCB；9.6X46.6MM；0.6MM； FR-4, two layers, pb-free
pb-free
1
1
1
1
2
46 Antenna nut. internal d iameter M8.7mm, e xternal diameterφ12mm,
3.6mm thick, black zinc plated,
48 PT7800emergency keypad silica gel,orange, hardness 60 degrees,
pb-free
1
1
6. Adjustment
During the maintenance, it is necessary to test and adjust the radio’s technical parameters after changing components.
6.1. Component s for A djustment
(1) Antenna connector conver t er (2) Universal connector
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