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                                         PT3600 Service Manual

 

 

13

Middle 

frequency 

 

Frequency 

counter/General test set

PC Test Mode

Error within 

±200Hz 

 

Power  

Power meter/General test 

set, Ammeter 

PC Test Mode

Adjust to 4W 

Error within 

±0.2W 

Low battery 

warning 

Battery terminal

6.8V  

Antenna 

PC Test Mode

Indicator flashes 

after adjustment 

 

 

 

Chapter 7 Specifications

 

 

7.1

 

General Specifications   

Product Model 

PT3600 

Frequency 

400 ~ 470MHz 

136 ~ 174MHz 

Modulation Type 

16K0F3E 

Number of Channels 

16 (15 + S) 

Channel Spacing 

25 kHz (W) / 12.5kHz (N) 

Intermediate Frequency None 
Operating Voltage 

7.5V Negative grounded 

Operating Temperature 

-25

~ +55

 

Antenna Impedance 

50

 

MIC Impedance 

1.8k 

 

Battery (Standard 
Configuration) 

Model: KB-31A, Li-Poly Battery, DC 
7.4V 1300mAh 

Dimension (W×H×D) 

56mm × 102mm × 29mm 

Weight 

235g (with battery and antenna) 

 

7.2 Receiver Section 

Usable Sensitivity (12dB SINAD) 

 0.25

μ

Open Squelch Sensitivity 

 0.18

μ

V@ squelch level 3 

Residual Output 

 -45dB 

Modulation Receiving Bandwidth  ± 7kHz 
Adjacent Channel Selectivity 

 65dB 

Intermodulation Rejection 

 60dB 

Spurious Response Rejection 

 60dB 

Audio Output Power 

Internal speaker: 1W, balance 
@ distortion 

 5%, 16

     

External speaker: 125mW, 
unbalance @ distortion 

 5%, 

16

 

Receiving Consumption Current 

 250mA 

Standby Current (Average) 

 20mA 

 

7.3 Transmitter Section 

Tx Power 

4.5W @7.4V DC 

Frequency Stability 

 ±2.5×10

-6

 

Max. Modulation Deviation 

±5kHz 

Modulation Sensitivity 

12mV 

Modulation Distortion (300-3000Hz

 

 3% 

Adjacent Channel Tx power 

 -70dB 

Spurious Tx 

 -70 dB 

Residual FM 

 -45 dB 

Tx Power Consumption Current 

 1.8A @ 7.5V DC 

 

 

Chapter 8 Troubleshooting 

 

No.

Problem 

Causes and Solutions 

1  No display after 

switching on 
the radio 

A. Battery power may be insufficient, please recharge 

or change the battery pack. 

B. The power switch is broken, please change it. 
C. The CPU is broken, please change the IC. 
D. The regulator tube is broken, please change the IC. 

Cannot talk to 
or hear other 
group members

A. The frequencies of both users are not the same, 

select the same frequency channel.   

B. The CTCSS/DCS of both users are not the same. 

Please reset it with PC. 

C. The radio is out of the effective communication 

range. 

3 Cannot 

receive 

signals 

A. The antenna is in poor contact. Please fasten the 

antenna until secure.   

B. The HF amplifier is broken. Please change it. 
C. The squelch level is so high that the squelch cannot be 

opened. Please reset the squelch level with PC.   

4 The 

transmitting red 
light is on, but 
no voice is 
heard by the 
recipient. 

A. The power amplifier tube Q11 is broken, so there 

is no power output, please change it. 

B. The microphone is broken, please change it. 

5 The 

receiving 

green light is 
on, but no voice 
is heard. 

A. The speaker is broken. Please change it. 
B. The audio power amplifier is broken. Please 

change the IC.   

6 Cannot 

program 

the radio 
parameters 
normally 

A. The cable connection is wrong, please check the 

cable connection.   

B. The computer RS232 serial port output is 

abnormal, please check the computer.   

C. The external MIC/Speaker jack is in poor contact, 

please change the jack.   

 

 

Chapter 9 KBC-31A Charger   

 

9.1 Working Conditions and General Specifications 

a) Applicable battery: Li-poly (2*3.7v) and Ni-MH (6*1.2) battery 

(battery capacity: 1 – 2.4AH). 

b) Applicable power adapter: DC 11V-16V, 500 - 1500mA. 

Voltage of standard power adapter: 12V. 

c) Idling input current:

 

 15mA. 

d) Pre-charge current: 75mA

 

± 10mA. 

Summary of Contents for PT3600

Page 1: ......

Page 2: ...copyright of the radio outward appearance structure circuit design Shenzhen Kirisun Electronics Co Ltd owns the copyright of this service manual Unauthorized publication is prohibited Shenzhen Kirisun Electronics Co Ltd owns the trademarks KIRISUN and 科立讯 Contents Chapter 1 Overview 2 Chapter 2 External View and Functional Keys 2 Chapter 3 Circuit Description 3 Chapter 4 Function Description and P...

Page 3: ... the radio wave might interfere the auto engine and cause it to stop working Replacement Parts All components used for repair should be supplied by Kirisun Components of the same type available on the market are not surely able to be used in this product and we do not guarantee the quality of the product using such components If you want to apply for any component from Kirisun please fill in an ap...

Page 4: ...re 3 1 Receiver Diagram Front end The signal coming from the antenna passes through the RX TX switch circuit D511 D515 D508 and D517 and is sent to pin 15 of U8 RDA1846 to be demodulated and to output audio signal Audio signal processing The demodulated audio signal output from U8 RDA1846 passes through the volume potentiometer to be adjusted and then goes to the audio power amplifier U1 TDA2822 S...

Page 5: ...l number You can press the preprogrammed Channel Annunciation button to repeat the current channel number If Channel Annunciation function is enabled the speaker will annunciate the current channel number once the Channel Annunciation button is pressed under standby mode You can switch the voice type by pressing and holding the Channel Annunciation button while restarting the radio Do it repeatedl...

Page 6: ...4 146 2 34 210 7 5 77 0 15 107 2 25 151 4 35 218 1 6 79 7 16 110 9 26 156 7 36 225 7 7 82 5 17 114 8 27 162 2 37 233 6 8 85 4 18 118 8 28 167 9 38 241 8 9 88 5 19 123 0 29 173 8 39 250 3 10 91 5 20 127 3 30 179 9 DCS DCS Digital Code Squelch which is used to control squelch is a series of continuous digital codes modulated on carrier together with voice signal If DCS is set the speaker can be open...

Page 7: ...C MCU power supply 63 64 Chapter 4 Function Description and Parameter Setting 4 1 Main Functions 4 1 1 Programmable Buttons Long Press Duration Amount of time that the radio user is required to press and hold down a button for the press to be interpreted by the radio as a long press A short press is defined as any button press that is shorter than the duration The dealer can assign one of the foll...

Page 8: ...g the radio will transmit from the priority channel in the scan list 4 Last Tx channel When pressing the PTT button during scanning the radio will transmit from the last channel that transmits signals 5 Selected channel When pressing the PTT button during scanning the radio will transmit from the channel selected by the channel selector knob You can choose to set one of the following 3 operations ...

Page 9: ...closed The function of selecting a squelch level is to determine the signal strength for open and close squelch If the signal strength is stronger than the set level the squelch will be opened and if the signal strength is weaker than the set level the squelch will be closed If the squelch level is set too high weak signals will not be received effectively if the squelch level is set too low you w...

Page 10: ... Monitor button of the master radio to start cloning The LED on the master radio will light red when data of the master is sent to the slave d While the slave is receiving the data the LED lights green Note The data being cloned includes all the data in 4 2 Functional Parameter Setting but the adjustment parameters in 4 3 PC Test Mode Chapter 5 Disassembly for Repair The radio is a piece of precis...

Page 11: ...he top cover 4 Remove the two torx head fixing screws at the lower part of the Al alloy chassis 5 Insert a flat blade screwdriver into the slot at the bottom of the Al alloy chassis and prize it up 6 Pull the Al alloy chassis backwards to remove it from the front casing 5 6 Removing the mainboard from the Al alloy chassis 1 Remove the screws on the PCB 2 Remove the main waterproof for the Al alloy...

Page 12: ... 7MJS 7128 01A N KBJ 10 Belt clip bolt 1 Carbon steel Ni plated ROHS 19 7MJP 7128 01A W0 Belt clip 1 PC ABS black ROHS 20 7MJS 3851 02A W KBJ 01 Spring 1 Stainless steel ROHS 21 7SMF 025050M MHYB Z2 M2 5 5 Pan torx black Zn plated machine screws 2 For fixing the top cover 22 7MHP 7123 08A W0 Battery latch 1 PC ABS black ROHS 23 7MHS 1727 02A N Battery latch spring 1 Carbon Spring Wire 0 35 Ni plat...

Page 13: ...0MHz 1000MHz Output level 0 1uV 32mV 127dBm 17dBm 13 Oscilloscope Frequency range DC 20MHz Measurement range 10mV 20V 14 Audio frequency voltmeter Measurement range 10mV 10V Recommendation Item 6 7 8 10 11 and 12 listed in the table can be replaced by HP8920 general test set 6 2 Adjustment Items During the course of maintenance it is necessary to test the radio and adjust its technical parameters ...

Page 14: ...oblem Causes and Solutions 1 No display after switching on the radio A Battery power may be insufficient please recharge or change the battery pack B The power switch is broken please change it C The CPU is broken please change the IC D The regulator tube is broken please change the IC 2 Cannot talk to or hear other group members A The frequencies of both users are not the same select the same fre...

Page 15: ...not charge if the voltage is lower than 8 25V the charger will charge the battery again 6 Temperature protection For Li poly battery when the temperature is higher than 55 the charger will stop charging and the yellow LED will light when the temperature comes back to 45 the charger will start charging again For Ni MH battery when the temperature is higher than 60 the charger will stop charging and...

Page 16: ...red 19 21SUR S530 A2 TR8 PCS 1 LED304 18 3ST1 SKRTLBE010 Chip Touch Switch SKRTLBE010 4 5 3 55 3 3mm ALPS PCS 1 SW304 19 2RS1 32 R47J Chip Resistor 3216 0 47Ω 5 PCS 3 R523 R524 R525 20 2RS1 16 473J Chip Resistor 1608 47K 5 PCS 1 R288 21 2RS1 16 224J Chip Resistor 1608 220K 5 PCS 1 R448 22 2RS1 16 221J Chip Resistor 1608 220Ω 5 PCS 1 R511 23 2RS1 16 153J Chip Resistor 1608 15K 5 PCS 1 R532 24 2RS1 ...

Page 17: ...r cored Inductor φ0 30 φ1 5 6TL negative high pin PCS 2 L501 L502 72 2LH1 R301R5 L05 05 Chip Air cored Inductor φ0 30 φ1 5 5TL negative high pin PCS 2 L516 L503 73 2CT1 TS35 100 470M Chip Ta Capacitor 3528 47μF 20 10V TS model size B PCS 1 C725 74 2CT1 TP20 100 4R7M Chip Ta Capacitor 2012 4 7μF 20 10V TP model size P PCS 8 C454 C457 C459 C465 C562 C571 C715 C717 75 2CT1 TP20 100 100M Chip Ta Capac...

Page 18: ...PCS 1 Q627 113 1TT1 DTC144EE Chip Triode Digital triode DTC144EE 26 SOT323 PCS 6 Q301 Q304 Q305 Q621 Q623 Q626 114 1TT1 DTA144EE Chip Triode Digital triode DTA144EE SMD PCS 1 Q515 115 1TT1 2SC5108 Y Chip Triode 2SC5108 Y MC NPN PCS 1 Q506 116 1TT1 2SC3356 R24 Chip Triode 2SC3356 R24 SOT23 NPN PCS 1 Q507 117 1TF1 ST2302 Chip FET ST2302 SOT 23 PCS 2 Q632 Q634 118 1TF1 ST2301 Chip FET ST2301A SOT 23 ...

Page 19: ...102 R444 C533 C582 L639 R449 28 2RS1 10 823J Chip Resistor 1005 82K 5 PCS 1 R509 29 2RS1 10 822J Chip Resistor 1005 8 2K 5 PCS 3 R346 R366 R522 30 2RS1 10 683J Chip Resistor 1005 68K 5 PCS 4 R270 R286 R301 R513 31 2RS1 10 563J Chip Resistor 1005 56K 5 PCS 5 R373 R377 R379 R381 R534 32 2RS1 10 562J Chip Resistor 1005 5 6K 5 PCS 1 R546 33 2RS1 10 474J Chip Resistor 1005 470K 5 PCS 1 R300 34 2RS1 10 ...

Page 20: ...25P 50V C0G PCS 1 C505 79 2CC1 16 C0G500 5R0C Chip Multilayer Capacitor 1608 5P 0 25P 50V C0G PCS 3 C509 C510 C519 80 2CC1 16 C0G500 471J Chip Multilayer Capacitor 1608 470P 5 50V C0G PCS 2 C518 C584 81 2CC1 16 C0G500 470J Chip Multilayer Capacitor 1608 47P 5 50V C0G PCS 1 C506 82 2CC1 16 C0G500 3R5C Chip Multilayer Capacitor 1608 3 5P 3 6 0 25P 50V C0G PCS 1 C503 83 2CC1 16 C0G500 2R0C Chip Multi...

Page 21: ... SOT 23 PCS 2 Q632 Q634 113 1TF1 ST2301 Chip FET ST2301A SOT 23 PCS 1 Q637 114 1TF1 RD07MUS2B Chip FET RD07MUS2B ROHS PCS 1 Q501 115 1TF1 2SK3475 Chip FET 2SK3475 SOT 89 6200 silk screen must be WB PCS 1 Q502 116 1TF1 2SK1824 Chip FET 2SK1824 B1 PCS 3 Q508 Q624 Q625 117 1IS1 XC6204B332MR Chip Voltage Regulator IC Voltage regulation integration 3 3V SOT 23 5 PCS 2 Q636 Q639 118 1IS1 TDA2822 Chip Sp...

Page 22: ...0 7ML 1826 01A L0 7MJS 1826 01A W KBJ 05 Belt Clip Bracket metal bracket PCS 1 18 7MJS 7128 01A N KBJ 10 Belt Clip Bolt PCS 1 19 7MJP 7128 01A W0 Belt Clip PCS 1 20 7MJS 3851 02A W KBJ 01 Spring PCS 1 21 7SMF 025050M MHYB Z2 M2 5 5 Pan Torx Black Zn plated Machine Screw PCS 2 22 7MHP 7123 08A W0 Battery Latch PCS 1 23 7MHS 1727 02A N Battery Latch Spring PCS 1 24 7MHP 7123 06A W0 Top Cover PCS 1 2...

Page 23: ... Model Specifications External View Battery KB 31A 7 4V 1300mAH Li poly Battery Hand Strap KGS 01 KME 008 Earphone KME 010 Charger KBC 31A 4 Hours Standard Charger Power Adapter KTC 24 DC OUT 12V 500mA Long Antenna Antenna Short Antenna Belt Clip KBJ 10 ...

Page 24: ...60 47K R260 47K Q636 XC6204B332MR Q636 XC6204B332MR VIN 1 VSS 2 CE 3 OUT 5 NC 4 C220 471 C220 471 R448 220K R448 220K R302 NC R302 NC Q632 ST2302 Q632 ST2302 G S D R202 1K R202 1K R293 1 8K R293 1 8K C244 105 C244 105 R262 150K R262 150K C238 102 C238 102 R289 2 2K R289 2 2K C452 104 C452 104 C455 102 C455 102 R288 47K R288 47K R441 102 R441 102 R286 68K R286 68K SW403 POWER VOL SW403 POWER VOL 1 ...

Page 25: ... VREF 61 VCC AVCC 62 P3_7 SSO 63 P3_5 SCL SSCK 64 R661 1K R661 1K C333 471 C333 471 R347 220R R347 220R SW304 TOPKEY SW304 TOPKEY C729 104 C729 104 C321 471 C321 471 T5 3M T5 3M R324 R324 SW404 ENCORDER SW404 ENCORDER ECN0 1 ECN0 9 ECN2 2 ECN2 10 ECN3 3 ECN3 11 ECN1 4 ECN1 12 GND0 5 GND1 6 GND2 7 GND3 8 R380 2 7K R380 2 7K C724 105 C724 105 R656 100R R656 100R C433 471 C433 471 R367 10R R367 10R R...

Page 26: ...528 150K C584 0R C584 0R C520 150P C520 150P C522 12P C522 12P R509 82K R509 82K R507 270R R507 270R L529 NC L529 NC C571 4 7uF 10V C571 4 7uF 10V L508 0 4 1 5 3T L508 0 4 1 5 3T C583 NC C583 NC R521 22R R521 22R L528 470P L528 470P H8 Hole H8 Hole 1 2 3 4 5 6 7 8 9 Q507 2SC3356 Q507 2SC3356 E B C Q506 2SC5108 Q506 2SC5108 E B C R508 47K R508 47K C574 NC C574 NC H4 Hole H4 Hole 1 2 3 4 5 6 7 8 9 C...

Page 27: ... R260 47K R260 47K Q636 XC6204B332MR Q636 XC6204B332MR VIN 1 VSS 2 CE 3 OUT 5 NC 4 C220 471 C220 471 R448 220K R448 220K R302 NC R302 NC Q632 ST2302 Q632 ST2302 G S D R202 1K R202 1K R293 1 8K R293 1 8K C244 105 C244 105 R262 150K R262 150K C238 102 C238 102 R289 2 2K R289 2 2K C452 104 C452 104 C455 102 C455 102 R441 102 R441 102 R288 47K R288 47K R286 68K R286 68K SW403 POWER VOL SW403 POWER VOL...

Page 28: ...6 47K R663 R663 R427 47K R427 47K C309 22P C309 22P R324 R324 SW404 ENCORDER SW404 ENCORDER ECN0 1 ECN0 9 ECN2 2 ECN2 10 ECN3 3 ECN3 11 ECN1 4 ECN1 12 GND0 5 GND1 6 GND2 7 GND3 8 T5 3M T5 3M C321 471 C321 471 C729 104 C729 104 SW304 TOPKEY SW304 TOPKEY R347 220R R347 220R C333 471 C333 471 R661 1K R661 1K C734 NC C734 NC C433 471 C433 471 R367 10R R367 10R R656 100R R656 100R C724 105 C724 105 R38...

Page 29: ...514 NC 0R L102 0R L102 C511 NC C511 NC D517 HVC131 D517 HVC131 1 2 C585 7P C585 7P C509 5P C509 5P C535 27P C535 27P C533 120P C533 120P R512 39K R512 39K C583 22P C583 22P C571 4 7uF 10V C571 4 7uF 10V R507 270R R507 270R R509 82K R509 82K R550 1 5K R550 1 5K C580 18P C580 18P R528 150K R528 150K L505 NC L505 NC R508 47K R508 47K Q506 2SC5108 Q506 2SC5108 E B C Q507 2SC3356 Q507 2SC3356 E B C H8 ...

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