Kirisun PT8200 Service Manual

PT8200

VHF /UHF MOBILE RADIO

SERVICE MANUAL

V070828

PT8200 SERVICE MANUAL

DANGEROUS!!

Do not connect AC power or the DC power that exceeds the specified input value with any connector or terminals of the radio. Otherwise it will cause fire or electric shock.

WARNING

Do not reverse power connection.

It may cause harm to the radio if signal input on the antenna connector is bigger than 20 dBm (100mW).

Do not turn on the power before the antenna or load connection is completed.

If the antenna has been damaged, do not use the radio. Damaged antenna may cause tightly burning on skin.

CONTENTS

Chapter 1 Introduction ......................................................2

Chapter 2 Radio ................................................3

Chapter 3 ...................4

Chapter 4 Disassembly For Repair ..........................................5

Chapter 5 ..................7

Chapter 6 ..............................................9

Chapter 7 .............................10

Chapter 8 ...........................................................22

Chapter 9 ...........................................24

Chapter 10 ................................37

Chapter 11 ...............................37

Chapter 12 ................................... 38

Chapter 13 .....................38

Chapter 14 Appendix...................... .................. .....39

Mode Combinations.................................

Circuit Description.....................................

Semiconductor Data..

Description of Components........

Adjustment

PCB Diagram..............

Interface Functions................

Packing...................................

Troubleshooting................

Specifications Parameters................

.......

Overview.......

................

It's better to avoid putting it in rain or snow, or any other liquid to ensure its life and performance.

STATEMENT

Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of KSP8200 software. Unauthorized Duplication of KSP8200 software is strictly prohibited. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the MCU software. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the radio outward/structure/circuit design. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of this service manual. Unauthorized publication is prohibited. Kirisun Electronic (Shenzhen) Co., Ltd owns the trademarks KIRISUN , , .

PT8200 SERVICE MANUAL

Chapter 1 Introduction

1.1 Introduction

This manual applies to the service and maintenance of PT8200 series of FM mobile radio, and is designed for the engineers and professional technicians that have been trained by our company. In this manual you can find all the information of product service. Kirisun reserves the rights to modify the product construction and specification without notice in order to enhance product performance and quality. You can also log on our website www.kirisun.com to download the latest service manual or contact your local dealer or us. Read this manual before repair the product.

1.2 Service Precautions

Safety

Avoid skin contacting with the antenna connector and PCB. Do not reverse the power polarities. If signal input is bigger than 20dBm (100mW) it may cause damage to the radio. Do not turn on the power before the antenna and load connection is completed. Do not use the radio if the antenna has been damaged. Contact the damaged antenna will cause lightly burning on the skin. Repair service can only conducted by professional technicians.

Electromagnetism Interference

It's prohibited to use or repair the radio in the following places: Hospital, health center, air port Any area with a potentially explosive atmosphere (where the air contains gas, dust and smog, etc.), such as the storage or transportation facilities. Any area of dynamite or exploder.

Change Components

All the components use in repair service should be supplied by Kirisun. Other components of the same models available on the market are not surely able to use in this product and we do not guarantee the quality of the product using such components. Please fill in the following forms if you want to apply for any components from Kirisun.

Component Application

Radio M o del/ Model

Compo nent

No.

pecifications

Mat e r i a l Serial

No.

Qua

ntity

Installation Condition

1.Unpack

Please check the host in the package and the supplied accessories in the following table before using. Any articles are found lost or damaged, please contact the distributor without delay.

Accessories Fixed bracket Power Cable Hand Microphone Microphone Hanger M4*10 Combination Screw M4*16 Self-tapping Screw M5*16 Self-tapping Screw Instruction Manual

Microphone Hanger

Hand Microphone

2. Licenses

Rules require that the radio installation point (mobile station or base station) needs permission license. The license carrier guarantees that the RF power, frequency and frequency deviation comply with the license requirements. The radio assembling or operation must be conducted by the license-authorized technicians.

3. Installation Preparation

3.1 Description

Every radio has been adjusted and checked before the shipment. Before installation it's better to check if the radio transmitting or receiving is normal to make sure its proper operation.

3.2 Test

Connect all the cables and accessories to test the radio. Transmitter frequency, deviation, and power output should be checked, as should receiver sensitivity, squelch operation, and audio output. Signlling operation should be verified.

Power Cable

M4*10 Combination Screw

Quantity

Fixed bracket

M5*16 / M4*16 Self-tapping Screw

1.3 Service

All the Kirisun products are subject to the service warranty. The main unit of the radio is guaranteed for free service of 24 months. Accessories (such as battery pack, power adapter, antenna or charger) are guaranteed for free service of 6 months. Earphones are wearing parts and out of warranty. In one of the following situations, charge free service will not be available. No valid service warranty or original invoice. Malfunction caused by disassembling, repairing or reconstructing the radio by the users without permission. Wearing and tearing or any man-made damage such as mechanical damage, burning or water leaking. Product serial number has been damaged or the product trademark is difficult to identify. After the warranty expires, lifetime service is still available. And we also provide service components to service stations and service staff.

4. Installation Steps

4.1 Introduction

Check the car and decide how and where to install the radio antenna and accessories. Allocate the cable in a proper place to avoid pressing or squeezing it. And pay attention to the heat scattering of the radio equipments.

4.2 Antenna The most ideal place for antenna is the center of an open and flat

conduction region. It usually at the center of the car top or at the top of the luggage cabinet. Stick the ground wire at the top of the luggage cabinet and the car outer shell and make sure to connect the luggage cabinet with the ground.

4.3 Connection of Power Cable First of all, please check whether there is a hole for the power

cable on the insulating board. If no, please bore the board with the suitable drill bit and fix a rubber grommet on it.

Afterwards, please have the cable pass through the insulating

board and lead from the car into the car engine. Connect the red

PT8200 SERVICE MANUAL

conductor to the positive terminal of the accumulator and the black con-

-ductor to the negative terminal. At last, ring the remained conductor and fix it.

Note: Please maintain the sufficient relaxation of the power cable to make it convenient to dismantle the radio in the state of power connection.

4.4 Radio Installing

Warning: For passengers' safety, please fix the radio firmly on the fixed bracket so that the radio will not be loosened in case of collision.

The fixed bracket is taken as an example. Draw the position and drill a hole on the instrument panel first, and then install the fixed bracket with 4 M5*16 self-tapping screws. (Note: please fix the radio at the position con-

-venient for operation and control, and leave an enough space for fixation and connection of the cable.)

Slide the radio into the fixed bracket and fix it with 4 M4*10 combination screws (plus plain washer and spring washer). (Different combinations of fixing holes are selectable to adjust the radio to the proper height and visual angle.)

Connect the antenna and the power cable to the radio.

Install the microphone hanger at the position easy to use, with 2 M4*16 self-tapping screws. (The microphone and its cable should be fixed at the position not affecting safe driving.)

Connect the microphone to the microphone jack on the front

panel of the radio and put it on the hanger.

Note: When replacing the protective tube for the power cable, please use the one of the same specification without fail. It is not allowed to change it into the tube of higher capacity.

4.5 If you do not intend to use the external speaker, fit the supplied speaker

-jack cap to stop dust and sand getting in.

Chapter 2 Radio Overview

2.2 Display Screen

P1 P2 P3

Display Description

It means the receiving signal strength. 4 lines means the strongest signal. Transmission power level

L means the transmission of signal for the

radio at the lower power;

M means the transmission of signal for the

radio at the medium power;

H means the transmission of signal for the

radio at the high power;

Call Received indicator. The radio receives a selective call/call alert.

Monitor State Indicator.

Scan Indicator.

Companding Indicator.

Talkaround Indicator.

Scrambler Indicator.

OST Indicator.

2.3 Rear Panel

2.1 Description of External View

1 Antenna Interface 2 Power Interface 3 15-Pin Connector for accessories.

1 power button Press this button for a long time (more than 1.5 seconds) to swith the radio on/off.

2 LED indicator The red indicator will light while transmitting;the green indicator will light when it receives the carrier. The led flashes orange on received correct DTMF/2Tonesignalling. The red indicator flashes in the scanning process.

3 / button (programmable button) 4 LCD display screen

For details, see LCD Display .

5 Volume Control knob

To be used to adjust volume.

6 Microphone/Programming Interface 7 button (programmable button) 8 button (programmable button) 9 button (programmable button) 10 button (programmable button)

11 PTT button (on the hand microphone) Press the PTT button first, and then speak to the microphone to transmit the voice to the other. Release to receive.

4 External Speaker Interface

2.4 Programmable Button Function

/ can be programmed as

one of the following functions.

Buttons Function Description

0. None No function

1.Channel Up Select the next channel

2.Channel Down Select the previous channel

3.Zone Up Select the next zone

4.Zone Down Select the previous zone

5.Display Channel Frequency

6.Display Channel Name

7.Display Mode Switch

8.OST Change the setup of preset CTCSS/DCS for the current channel.

Press this button and the LCD will show the frequency of the current channel. Press this button and the LCD will show the name of the current channel.

Press this button and the LCD will show

Channel Number , Channel Name , Zone Number, Zone Name and Channel

Frequency alternately.

PT8200 SERVICE MANUAL

Buttons Function Description

Press this button to make selection among the

9.Power level

high, medium and low transmission power, and

Selection

H , M and L will be shown on the LCD to represent the current transmission power.

Press this button to enter the Squelch Level

10.Squelch Level Selection

Adjustment Mode first, and then press the / button to adjust the level. Press the button to save the selected squelch level and quit this mode.

11.Key lock To toggle between locking/unlocking your radio

keypad.

12.Scan Start/end the scanning function of system.

13.Nuisance Delete

When one channel continually generated unwanted noise,this allow you temporary remove the channel from the current active scan.

14. Voice Companding

Start/end the voice compression/expansion function.

Start/end the public address function.

15. Public Address

Press this button and the function will be actived. Press the PTT button and speak to the micro-

-phone so that you can hear your voice through the external speaker . Press this button once again and return to the normal user mode.

16.Scrambler Enable or Disable voice scrambler function.

Buttons Function Description

26.Call Button 1 Sends the DTMF/2Tone code assigned to call 1 key.

27.Call Button 2 Sends the DTMF/2Tone code assigned to call 2 key.

28.Call Button 3 Sends the DTMF/2Tone code assigned to call

29.Call Button 4

30.Menu Select /Enter

31.Horn Alert

3 key.

Sends the DTMF/2Tone code assigned to call 4 key.

To enter the menu mode or make menu selections.

Enables the horn alert

32.Tenancy

33.Lone worker

34.Scan List Edit

35.GPS Information View

36.VOX Level Selection

Press this button to view tenancy remained time.

Enables lone worker function

Press this button and the radio will enter the fast menu mode for scan list edit. For details, see Menu Operation .

Press this button and the radio will enter the menu mode of GPS Information Menu.

Press this button to enter the VOX Level Adju-

-stment Mode . Press / button to adjust VOX level. Press button to save the selected VOX level and quit this mode.

17. Home Channel

18.Talkaround

19.VOX Selection

20. Monitor momentary/ Call Cancel

21.Monitor/ Call Cancel

22.Squelch off monmentary/ Call Cancel

23.Squelch off /Call Cancel

24.Emergency Alarm

25.Radio Call

Changes to the home channels.

Switch the radio between talkaround and repeater mode.

Enable or disable the VOX function.

Hold this button to close CTCSS, DCS, 2Tone /DTMF signalling according to the set data. Loosen this button to return to the normal operation. Press this button in the selective call

state to quit such a state.

Press this button to trigger this function and the CTCSS, DCS, 2Tone/DTMF signalling will be closed, so you can receive the signal that can't be heard in the normal operation. Press this button again to return to the normal operation. Press this button in the selective call state to quit such a state.

Hold this button to open the squelch. loosen this button to return to the normal operation. Press this button in the selective call state to quit such a state.

Press this button to open squelch, press it again to returm to normal operation.Press the button in the selective call state to quit such a state

Enables the emergeney mode.

Press this button and to enter the shortcut menu mode of Radio Call .For detailed operation, see Menu Operation .

Chapter 3 Mode Combinations

Mode combinations

Mode Function How to access User Mode For normal use Power on

Data Progra-

-mming mode

Mode

Test Mode

Firmware Pro-

-gramming Mode

Wired Clone mode

Firmware Version Information Display Mode

Data programming mode: Before leaving the factory, the radio has been set in factory. However, due to different requirements of users, functional parameters of the radio like working frequency, channels, CTCSS/DCS and auto scanning, etc. should be reset. Therefore, the company has specially designed a set of Chinese/English programming software KSP8200 with friendly interface, convenient operation and visualized display for setting functional parameters of the radio.

Reading and writing frequency data and other functions

Used to tune the radio using the PC.

Upgrades the software when new features are added

Used to transfer programming data from one radio to another.

Displays the firmware version information

Receive instructions from the PC

Receive instructions from the PC Receive instructions from the PC

Hold buttons and , and connect the power at the same time

Hold while connecting the power, release to enter the user mode.

PT8200 SERVICE MANUAL

Steps for setting the functional parameters of the radio by PC are as follows: A.Install KSP8200 on the PC. B.As shown in the figure below, connect the radio and the serial port of the PC with the special programming cable KSPL-05

(RS232 serial

port)

Programming

cable

KSPL-05

Radio

(MIC/Program

port)

Figure 5-1

C.Turn on the power of the PC. D.Turn on the power of the radio. E.Click on KSP8200 to perform the program and run KSP8200. F.In the main menu of KSP8200, click on [Read] to read the paramete rs of the radio into the PC; click on [Write] to write the parameters set in the PC into the radio. G.As required by the user, the following parameter settings can be made with KSP8200: 1 Programmable key functions 2 Alert tone 3 Optional functions 4 2-tone/DTMF/MDC/5-tone signaling setup 5TOT 6 Emergency alarm 7 Personality template 8 Scanning function 9 Channel data Please refer to the Help document of KSP8200 for details.

Caution:

1 Turn off the power of the radio before connection. 2 When reading data from the radio, the indicator of the radio is green, do not press the PTT during programming; when writing data to the radio, the indicator of the radio is red. 3 Before editing for the first time, the data should be read from the radio and properly backed up. 4 If the edited data cannot work normally after being written into the radio, please open the backup data and rewrite them. 5 Model Information is important information of the radio and should not be altered. 6 Upon completion of the programming, the radio will be automatically restarted and return to the User Mode.

Test Mode According to Figure 5-1, connect the radio and the serial port of the PC with the special programming cable. Warning: Before entering the Test Mode, please first connect a highfrequency load of 50 ohm to the antenna port of the radio or connect the radio to a comprehensive tester. With the KSP8200 software, enter the adjustment status in the Comp-

-uter Test Mode, you can adjust the following parameters of the radio:

1)Frequency

2)Low/Med/High Power;

3)Max deviation

4)Tone deviation

5)DTMF deviation

6)MSK deviation

7)DCS balancing

8)DCS deviation

9)VOX1-level/10-level

10)CTCSS(67Hz) deviation

11)CTCSS(254.1Hz) deviation

12)Receiving sensitivity

13)9-levle/1-level Squelch open

14)9-levle/1-level Squelch close

15)RSSI

Firmware Programming Mode

The radio is equipped with FLASH ROM internally, when new fea-

-tures are announced, it can be upgraded.

1).Connect the power and enter the User Mode.

2).Run PC software KMU.

3).Connect the radio and the PC with the programming cable.

4).Select the correct serial port, select suitable baud rate according to the actual situation, 19200 is recommended, and then click on

E.P or E.P.R for downloading. The LCD displays FIRM-

-WARE

5).Press OK to quit after the communication is successful.

6).Just repeat steps 1-5 if you want to program more radios.

Chapter 4 Disassembly For Repair

Exploded view of the radio

6800 knot circlip

PT7200 coding switch nut

PT8200 static protection film

PT8200 dustproof screen for horn

Horn

B/W twisted-pair

PT8200 horn gasket

Flat cable

M3.0x25.0 machine screw

PT8200 aluminum alloy lower cover

PT8200 power module screen

M3.0x6.0 machine screw

Electric cable

PT8200 e-material of main board

M2.5x5.0 machine screw

PT8200 metal baffle

PT8200 plastic buckle

PT8200 horn hole plug

M3.0x10.0 sems screw

PT8200 antenna head

Silver-coated jumper cable

PT8200 upper/lower cover gaskets

PT8200 Aluminum alloy upper cover

PT617A VCO screen

PT8200 L/R gaskets of panel

PT8200 Lower gasket of panel

PT8200 Upper gasket of panel

M2.6x6.0 tapping screw

PT8200 E-material of keyboard

PT8200 LCD

PT8200 silicon key

PT8200 light guide

PT8200 lens

PT8200 plastic panel

PT8200 volume knob

Name

203-006800-R26 203-007200-R08 204-008200-R08A 204-008200-R07A 121-100000-R19 120-400000-R04 204-008200-R06A 120-400000-R05 301-30250D-R01 203-008200-R02A 203-008200-R05A 301-30060G-R01 120-100000-R15 602-082001-H01 301-25050J-R01 203-008200-R04A 201-008200-R03A 202-008200-R02A 303-30100G-R01 203-008200-R03A 120-500000-R08 204-008200-R04A 203-008200-R01A 203-00617A-R01 204-008200-R03A 204-008200-R02A 204-008200-R01A 302-26060D-R01 602-08200K-H01 107-008200-R01 202-008200-R01A 201-008200-R05A 201-008200-R04A 201-008200-R01A 201-008200-R02A Material Code

1 1 1 1 1 1 1 1 9 1 1 8 1 1 6 1 1 1 7 1 1 2 1 1 2 1 1 6 1 1 1 1 1 1 1 Quty.

PT8200 SERVICE MANUAL

. Instruction for disassembly of the station for maintenance

1 RF-PCB Disassembly

.Release the 9 screws (M3x25) for the upper and lower covers, open

the aluminum alloy lower cover (see the left figure below).

PT8200 SERVICE MANUAL

ANT SW D31 D30

RF AMP

Q26

IF SYSTEM

TA31136

MCF

XF1 XF2

RF MAP RA601317

MIC AMP

MB15E03 PLL/VCO

CIRCUIT

AF AMP

TDA1519

1st MIX Q21

AUDIO

CONVERTER

AK2346

450KHZ CF1 CF2

MIC

AUTO

AGC

TCXO

16.8MHZ

RX/TX SWD19½UPB1509

DIVIDE R AMP Q23/Q25

16.8MHZ*3

APC

CONTROL

MCU

LCD DRIVER

ALL I/O

ANT SW D31 D30

RF AMP

Q26

IF SYSTEM

TA31136

MCF

XF1 XF2

MB15E03 PLL/VCO

CIRCUIT

AF AMP

TDA1519

1st MIX Q21

AUDIO

CONVERTER

AK2346

450KHZ CF1 CF2

TCXO

16.8MHZ

RX/TX SWD19½UPB1509

16.8MHZ*3

.Release the 4 (M2.5x5) screws of the baffle and the 2 fixing screws of the 15PIN DB socket, remove the metal baffle, the plastic buckle and the horn hole plug (see the right figure above).

.Remove the power module screen, release the fixing screws of RF

-PCB and audio power amplifier, DC regulating IC, unplug the flat cable and the h orn cable, welder the antenna head and the power module to separate t hem from the RF-PCB with the electric iron, carefully remove the RF-PCB from the aluminum ally upper cover (see the left figure below)

After the disassembly above, you can carry out corresponding repara-

-tion and adjustment according to the actual malfunction.

Chapter 5 Circuit Description

Circuit composition

The receiving circuit adopts double conversion super-heterodyne mode. The first IF is 49.95MHz; the second IF is 450kHz. The first local frequ-

-ency signal is provided by the phase-locked loop by controlling the V CO circuit. The 2nd local frequency signal is provided by the 16.8MHZ crystal triple frequency.

2 Instruction for disassembly of KEY-PCB

.Unplug the volume knob, remove the knob circlip and the switch nub, release the 2 M2.5x5 screws for the panel to separate the panel from the station, separate the horn cable and the horn with an electric iron, plug out the flat cable to separate the panel with the entire station thor-

-oughly (see the right figure above)

.Release the 6 (M2.6x6) fixing screws for KEY-PCB to take out the KEY-PCB from the plastic panel (see the figure below)

The transmission frequency is generated by the phase-locked loop by controlling VCO circuit via the frequency dividing circuit for further frequenc y division. The composition of the circuit is shown in the figure above.

Transmission Protection

The power module is provided with overheating protection when transmitti ng. When the temperature of the power module is higher than the reference value, the communicator will switch the TX power from high powe r to low power. Subsequently, if the temperature keeps rising, the transmission will be stopped

Over-voltage and over-current protection of the power

When the voltage is higher than the reference value of 18V, the communicator will automatically switch the power control and turn on or off the power. When the receiving current is higher than the reference value and when the polarity of the power is reverse, the F841 on the PCB of the station will automatically cut the power supply.

Receiving System

IF demodulation TA31136

CF1

Wide

CF2

Narrow

D13

D15

Narrow

U401 PIN52

Wide

U401 PIN51

R74

R78

R73

R77

PIN 5

PIN3

1st High frequency amplifier

Signals entering the antenna enters RF amplifier (Q26) via the trans-

-mitting/receiving switching circuit (D30/D31) and the band-pass filter (L48, L38 and variodes: D50, D26). After being amplified, the signals are filtered by the band-pass filters (L30, L51 and the variodes: D21, D22) before entering the 1st mixer (Q21).

1st mixer Signals from RF amplifier and the 1st local frequency from VCO are synthesized to generate the 1st IF of 49.95MHz. And then the 1st IF enters the 2 single-chip crystal filter (XF1 XF2) for further elimination of parasitic signals and then sent to the IF amplifier

IF amplifier After being amplified by Q19, the 1st IF signal enters U102 (Ta31136). When the signal is mixed with the 2nd local signal in U102 again, the 2nd IF signal of 450kHz is generated. Before being amplified, the 2nd IF enters the 450kHz ceramic filter (broad: CF1, narrow: CF2) for further elimination of unnecessary signals as well as modulation and demo-

-dulation in U102.

Parameters of the receiving components

Item Rated Value Rated central frequency 49.95MHz Pass band width 5.0kHz or higher at 3dB 35dB stop band width 20.0kHz or lower Pulse 1.0 dB or lower Insertion loss 5.0 dB or lower Guaranteed attenuation 80 dB or higher at fo 1MHz Parasitic signal: 40 dB or higher within fo 1MHz Terminal impedance 350 /5.5 pF

Table 1 Crystal filterXF1/XF2

Item Rated central frequency Pass band width 35dB stop band width Pulse Insertion loss Guaranteed attenuation Terminal impedance

Table 2 Ceramic filterCF1

Item Rated central frequency Pass band width 35dB stop band width Pulse Insertion loss Guaranteed attenuation Terminal impedance

Table 3 Ceramic filter Cf2

Broad/Narrow switching circuit

The broadband control port (pin 51) and narrowband control port (pin

52) of the CPU are used for switching between ceramic filters. When the broadband control port is at high level, the ceramic filter SW diode (D13, D15) allows the CF1 to receive broadband signals. When the narrowband control port is at high level, the ceramic filter SW diode (D13, D15) will allows CF2 to receive narrowband signals (The circuit is shown in the figure below).

Rated Value 450kHz

6.0kHz or higher

12.5 kHz or lower

2.0 dB or lower

6.0 dB or lower

35.0 dB or higher within fo 100kHz

2.0k

Rated Value 450kHz

4.5kHz or higher

10.0 kHz or lower

2.0 dB or lower

6.0 dB or lower

60.0 dB or higher within fo 100kHz

2.0k

PT8200 SERVICE MANUAL

Audio signal system Detection s ignals from the IF IC (U102) enters the amplifier (U601) for adjusting the gain and be outputted to AK2346(U404) for baseband signal processing, the output signals are inputted to the audio power amplifier (U11) for amplification and then be outputted from the speaker.

Squelch circuit Noise signals outputted from FM IF chip (U102) output are amplified by the voice amplifier (Q78), the DC voltage corresponding to the noise level is regulated and outputted, the DC voltage is then sent to the analog port of the CPU. U102 also outputs the DC level RSSI corres-

-ponding to the IF amplifier input signals.

Phase-locked loop frequency combiner

The phase-locked loop and the voltage controlled oscillator circuit produce the 1st local oscillation signal of the receiver and the transm-

-itting signals of the transmitter.

Phase-locked loop circuit

The frequency step of the phase-locked loop circuit is 2.5/5.0/6.25kHz. The reference oscillator signal of 16.8MHz is divided in the chip U101 through a mixer counter to produce reference frequency of 2.5/5.0 /6.25kHz. Signals outputted from the voltage controlled oscillator(VCO) are buffer ed and amplified via Q15 and then divided by the dual-mode programmable counter in chip U405. Signals amplified by Q15 are compared with phase comparators carrying reference signals with

2.5/5.0/6.25kHz in chip U101. Signals output from the phase compar-

-ator controls the voltage to enter a low-pass filter and to control the oscillation frequency through the voltage controlled oscillator.

Voltage controlled oscillator

The RF rate is generated via Q11 in the transmission mode, the recei-

-ving frequency is generated via Q10 in the receiving mode. The control signals ge nerate voltage via the phase comparator to the variode (D10 and D12 in the transmission mode, D9 and D11 in the receiving mode). In the receiving mode, Q12 is cut and Q7 is connected, in the transm-

-ission mode, Q12 is connected and Q7 is disconnected. Output signals from Q10 and Q11 are amplified by Q15 and sent to U405 frequency divider.

PT8200 SERVICE MANUAL

ANT SW D31 D30

RF MAP

RA601317

MIC

AMP

MB15E03 PLL/VCO

CIRCUIT

AUDIO

CONVERTER

AK2346

MIC

AUTO

AGC

TCXO

16.8MHZ

RX/TX SWD19½UPB1509

DIVIDE

R AMP

Q23/Q25

APC

CONTROL

ANT

switch

D31 D30

Power

amplifier

RA601317

RX/TX

switch

D19

Drive amplifier Q23/Q25

Low-pass

filter

Transmitting system

Block diagram

he transmitting circuit directly produces and amplifies the required frequency and conducts frequency modulation for carrier signals via the variode.

Transmitting driving power amplifier circuit

Transmitting signals from the voltage controlled oscillator are amplified through the frequency division and transmission/receiving selector diode(D19) and the driving amp lifier(Q23 and Q25), thus providing the power moduleRA601317M/(RA554047M) with a special level. The amplified signals then enter a low-pass filter. The low-pass filter eliminates unnecessary high-frequency harmonics and the acquired signals enter the antenna terminal.

Auto power control circuit The auto transmitting power control (APC) circuit adopts the diodes (D34, D36) to detect part of the power module outputs and provide control voltage for U202. Through comparison with the reference voltage outputted from MCU input, U202 generates the error voltage and outputs from pin 7 of U202 to control the power amplifier Ra6013 17M and transmits output power stable. The composition of the auto power cont rol circuit is for preventing over current of the power module due to the fluctuation of the load of the antenna terminal and stabilizing the output voltage and temperature change of transmission.

Control circuit

The CPU is provided with the following tasks:

1)Embedded Flash Rom, including the control program

2)Controlling the receiving circuit

3)Controlling the transmitting circuit

4)Controlling the display circuit

5)Various function control circuits

6)Communicating data with external devices

Storage circuit

The radio is provided with a 256k-bit EEPROM (U402) for storing pro-

-gramming or testing data.

Display circuit The display circuit consists of the CPU (U401), the LCD component, LED and other components. When the communicator is busy and the LEDG cable is at high level, Q4 is connected and the green LED (D11) is on. When transmitting, the LEDR cable is at high level, Q8 is conne-

-cted and the red LED (D12) is on, Led D1 to D4 provide the LCD back-

-light, which is on when operating the radio. The LCD is in the * shape and can display up to 8 digits or letters.

Encoding

CTCSS/DCS: Outputting CTCSS/DCS signals from the CPU(U401); one channel is outputted from PIN24 via the low-pass filter and mixed with audio signals and the external pin DI line, then inputted to the VCO for mod-

-ulation; the other channel is outputted from PIN28 output to TCXO(XI) for modulation.

2-TONE/5-TONE/DTMF: PIN2 of the CPU outputs 2-TONE/5-TONE/DTMF coding signals, which are inputted to the baseband processing IC (U404) via low-pass CR filter for filtration and deviation control and then sent to the VCO for modulation.

MSK: MSK signal is generated by U404, through filtration and frequency deviation control, it is outputted from PIN7 and sent to VCO for modulation.

Decoding

CTCSS/DCS CTCSS/DCS signals are processed and amplified by U403 filter and sent to PIN92 of MCU for filtration and decoding.

2-TONE/5-TONE 2-TONE/5-TONE signals are filtered and amplified by U503 and receive waveform transformation via U801 (sine wave into square wave) and then sent to PIN3 of MCU for filtration and decoding.

DTMF DTMF signals are filtered and amplified by U503 and sent to PIN2 of U803 (HT9172) for decoding.

MSK MSK signal s are filtered, amplified and decoded by U404 and then s ent to MCU for MSK signal processing and control.

Power circuit When the POWER switch on the front panel is pressed, the port connecting the POWER on the display board and the terminal pins of the CPU is at low level, Pin 80 (SBC) of the CPU is as high level, Q34 is connected, SB SW (Q42) is connected and supplying power to the communicator (SB). This circuit is provided with the over-voltage prot-

-ection circuit. If 17V or higher voltage is provided to the power cable, D839 will be connected and supply voltage to the base of Q38. This voltage makes Q38 connected and Q34 and SB disconnected.

Chapter 6 Semiconductor Data

Processor: M30620

Pin 1

Port Name PC/TV

In/Out O

Function Transmit power and receive sensitivity adjusting voltage output

2 3 4 5 6 7

DTMF HSDI EEP DAT EEP CLK BYTE CNVSS

O I I/O O I I

DTMF/2Tone/5Tone/Beep output Hi-speed data input EEPROM data input/ output EEPROM clock output GND GND

PT8200 SERVICE MANUAL

Pin Port Name In/Out Function

BSHIFT

EXT SPK

RESET

XOUT

VSS

XIN

VCC

NMI

DTMF DV

RDT

TCLK

SCLK

FreqStab

TDATA

SideToneVol

DI/O

CTCSSVCO

DIR

HNC

CTCSS TCXO

TXD1

RXD1

CLK1

RTS1

TXD0

RXD0

RX W/N

TX W/N

RX SW

TX SW

HOLD

PLL UL

PLL STD

PLL DAT

PLL CLK

PLL T/R

Au2

Aux1

PTT C

W/N R1

W/N R2

AFCON

RX MUTE

PSW

LCD RST

LCD BLC

LCD DAT

LCD WR

VCC

LCD RD

VSS

LCD CS

Clock selection control

External SPK conversion

CPU reset input

CPU clock output

GND

CPU clock input

+5v

DTMF decoding detection

AK2346 MSK signal receiving symbol

and frame detection input AK2346 MSK data transmission clock

input AK2346 serial clock output

Frequency control output

AK2346 MSK data output

Side tone volume control output

AK2346 serial data input output

I/O

CTCSS/DCS output to the VCO

AK2346 serial data input/ output control

Speaker alarm control output

CTCSS/DCS output TCXO (PWM)

PC serial data output

PC serial data input

GPS serial data output

GPS serial data input

Receive broad/narrow band switch

Transmit broad/narrow band switch

Receiving VCO switch

Transmitting VCO switch

GND

PLL loss of lock detection input

PLL enabling control output

PLL serial data output

PLL clock output

PLL transmitting/receiving switch output

Programmable auxiliary input/output

I/O

Programmable auxiliary input/output

I/O

Intermediate PTT control output

Receive IF broad/narrow band switch

Audio power amplifier control output

Receive mute switch

Power key input

LCD reset control

LCD backlight control output

LCD serial data input/ output

I/O

LCD writing clock output

+5v

LCD reading clock output

GND

LCD chip selection signal output

Pin Port Name In/Out Function

KEY BLC

Down Key

Up Key

R LED

G LED

SideToneFixed

MBLC

MIC DAT

HOOK

PTT

MinVol

Int Mic Mute

8T C

8R C

SBC

DTMF D3

DTMF D2

DTMF D1

DTMF D0

TEMP

RSSI

BUSY

VOX

DTMF IN

AVSS

PA C

VREF

AVCC

IGN

Ext Mic Mute

100

HPF PC

Front panel keypad backlight control

output P4 key

P3 key

P2 key

P1 key

Down key

Up key

Transmit LED control

Receive LED control

Fixed side tone volume control

MI keypad backlight control

MIC keypad serial data

I/O

Hangup signal input

PTT input

Min. Volume control

MIC mute switch

8T power control

8R power control

SB power control output

DTMF receiving signal input

Temperature detection input

Receiving field intensity signal input

Squelch level detection input

VOX voltage detection input

CTCSS/DCS decoding input

DTMF decoding input

GND

Speech speaker control output

+5v

Ignition sensor input

External MIC mute switch

High-pass filter switch

Chapter 7 Description of Components

Functional description of semiconductor device

Item U101 U202 U102 IC404 U501 U11 U402 U401 U305 Q23 Q25 Q16 Q20 Q14

Model MB15E03 TC75W51 TA31136 AK2346 TC75W51FU TDA1519C AT24C256 M3062LFGPGP PST9140NR 2SC3357 2SC3357 2SC4226 2SC4627 2SC4617

Function Description Phase-locked loop chip APC driver IF demodulation Baseband audio processor MIC amplifier AF Power AMP EEPROM MCU Voltage detector reset Transmitter1st amplifier Transmitter 2nd amplifier VCO buffering amplifier VCO buffering amplifier VCO power filter

PT8200 SERVICE MANUAL

3SK318 M: YB-

2SK18 24

Mark: B1

2SC5108

M: MC

M: R24

2SC3356

2SC4617

2SC473 8

KTC4082

2SC1623

M: L6

KTA1298

DTC144EE

M:16

GND

OUT

HT7150-1

RD01MUS1

RD07MVS1

RDA0002

DA221 M: K

2SK308NV

DTA144EE

FMMT591

GSD

Item Model Function Description

Q78 U201

2SC2412K RA601317M

Noise amplifier Transmitting final power

amplifier IC Q70 Q423

DTA144EE DTA144EEAPC output

Wide/narrow band switch

APC output switch

switch Q21 Q26 Q19 Q605 Q701 Q30/Q29 Q7 Q12

3SK3181st mixer

3SK318RF amplifier

2SC46271st IF amplifier

KRC102SAF Mute

2SC4617LED driver

RAC102S8T/8R switch

2SJ243TX switch

2SJ243RX switch

1st mixer RF amplifier 1st IF amplifier AF Mute LED driver 8T/8R switch TX switch RX switch

Diode functional description

Item D30 D19 D34/D36 D31/D32 D501/D68 D10 D12 D9 D11 D308 DD1/D902 D6 D16

Model MA4PH633 DAN235 MA742 MA4P1250 MA742 ISV325 ISV325 ISV278 ISV325 ISV325 HZU5ALL MA2S111 MA2S111

Function Description Transmitter antenna switch diode VCO output switch Power detection diode Receiver antenna switch diode AGC control diode Transmit VCO oscillation varicap Transmit VCO oscillation varicap VCO adjust diode Receive VCO oscillation varicap Receive VCO oscillation varicap Output voltage-limiting diode Loss of lock detection diode VCO power supply strain

accelerate diode D18 D70 D13/D15 D21/D22 D26/D50

Ma742 LED red and green DAN222 ISV305 ISV305

Noise demodulation

Transmit receive indication

Wide narrowband filter control diode

Receive band pass varicap

Characteristic of XF1/XF2 crystal filter

Item Nominal center frequency Transmission band width 40dbstop band width Ripple Insertion loss Ensure attenuation Terminal impedance

Rated Value

49.95mhz

7.5khz or higher, but within 3db

20.0khz or lower

1.0db or lower

3.0db or lower 80db or higher, but between fo-910khz

1.5k /6pf

Performance and parameter cf1 CF1 LTWC450F

Item Nominal center frequency 6db band width 50db band width Ripple Insertion loss Ensure attenuation

Rated value 450khz

5.0khz or higher

13.5khz or lower

3.0db or lower

7.0db or lower

45.0db or higher, but between f0 100khz

Performance and parameter CF2 LTWC450G

Item Nominal center frequency 6Db band width 50dB band width Ripple Insertion loss Guaranteed attenuation

Rated Value 450kHz

3.5kHz or higher 12kHz or lower

3.0dB or lower

7.0dB or lower

45.0dB or higher, between f0 100kHz

Semiconductor device packaging sketch

PT8200 mainboard BOM / 136-174MHz

No Material Serial No. Name/Spec. Quantity Installation Positon

6PM7-1943-HMB

1IS1-UPB1509GV

1IME-AT24C256N10SI27

1MR3-RA60H1317M

1IS3-L7808CV

5 6 7 8 9 10 11 12

1IS1-PST9140NR 1IS3-TDA1519C 1IS1-TA31136FN 1IS1-TA75W01FU 1IS1-AK2346 1IS1-MB15E03SL 1IS1-TC75W51FU

PT8200PCB ,PT8200V-080430.PCB,ROHS Frequency demultiplier/ UPB1509GV ROHS Memory IC / AT24CL256AN ROHS Power module / RA60H1317M ROHS In-line regulator IC / L7808CV,TO-220 ROHS Restoration IC / PST9140NR,ROHS Audio power amplifier / TDA1519C,SIL9,ROHS IF(FM)demodulationIC / TA31136FN,SSOP ROHS Operational amplifier / TA75W01FU,ROHS IC / AK2346 ROHS PLL IC / MB15E03SL,PLL,16-PIN,SSOP,ROHS Operational amplifier / TC75W51FU,SSOP8-P-0.65,ROHS

1 1 1 1 1 1 1 1 1 1 1 5

U405 U402 U201 U302 U305 U11 U102 U202 U404 U101 U601, U403, U501, U503, U801

PT8200 SERVICE MANUAL

No Material Serial No. Name/Spec. Quty Installation Positon

1IS1-XC62FP3502PR

1IS1-HT9172

1IP1-M16CM3062LFGPGP

1IS1-NJM78L05UA

1DZ1-02DZ18-X

103-00MA77-R01

1DS1-DA221

1DS1-MA742

1DS1-1SS355

1DV1-1SV278

1DV1-1SV305

1DV1-1SV325

1DS1-MA4PH633

1DS1-MA2S111

103-AP1250-R01

1DS1-DAN222

1DS1-DAN235E

1DZ1-HZU5ALL

1DZ1-HZU5CLL

1DG1-DSM3MA1

1TT1-DTA123JE

1TT1-DTA144EE

1TT1-DTC114EE

1TT1-DTC144EE

1TT1-KRC102S

1TT1-KRC404RTK

1TT1-2SA1641-S

1TT1-2SA1745-6

1TT1-2SA1774-R

1TT1-2SA1832-GR

1TT1-2SC2412K-Q

1TT1-2SC3357

1TT1-2SC4116-GR

1TT1-2SC4226-R24

1TT1-2SC4617-S

1TT1-2SC4649-N

1TT1-2SC4738-GR

1TT1-KTA1664-Y

1TF1-2SJ243

1TF1-2SK508NV-K52

1TF1-3SK318

1TF1-2SK1824

3SJ3-OVR-SH-209L

5FT3-LTM450FW

5FT3-LTM450GW

5FC3-S49M95-UM5

2RS1-16-000O

2RS1-16-100J

Regulator IC / XC62FP3502PR,SOT-89,ROHS DTMF decode IC/ HT9172,sop, ROHS CPU / M16C-M3062LFGPGP,FLASH,100P6Q-A,ROHS Regulator IC / NJM78L05UA ROHS Chip regulator diode / 02DZ18(X.Y),ROHS Chip HF on-off diode / MA77,0805,ROHS Chip array diode / DA221(ROHM) Chip on-off diode / MA742(PANASONIC),ROHS Chipdiode / 1SS355B,ROHS Chip variable capacitor diode / 1SV278,ROHS Chip variable capacitor diode / 1SV305,ROHS Chip variable capacitor diode / 1SV325,ROHS Chipdiode/ MA4PH633 ROHS Chip on-off diode / 0603,MA2S111(PANASONIC),ROHS Chipdiode / MA4P1250-1072T,ROHS Chip on-off diode / DAN222,(ROHM),ROHS Chipdiode / DAN235E,ROHS Chip regulator diode / HZU5ALL(HITACHI),ROHS Chip regulator diode / HZU5CLL,ROHS Chipdiode / DSM3MA1,ROHS Chip triode / DTA123JE(ROHM),ROHS Chip triode / DTA144EE(ROHM),ROHS Chip triode / DTC114EE(ROHM),ROHS Chip triode / DTC144EE(ROHM),ROHS Chip triode / KRC102S,ROHS Chip triode / KRC404RTK,ROHS Chip triode / 2SA1641(S.T),ROHS Chip triode / 2SA1745(6,7),ROHS Chip triode / 2SA1774(Q R) ROHS Chip triode / 2SA1832(G R),ROHS Chip triode / 2SC2412K,ROHS Chip triode / 2SC3357 ROHS Chip triode / 2SC4116-GR ROHS Chip triode / 2SC4226(R24),ROHS Chip triode / 2SC4617(S)(ROHM),ROHS Chip triode / 2SC4649(N,P), 2SC4627 ROHS Chip triode / 2SC4738(GR),AF,AMPLIFIER(TOSHIBA),ROHS Chip triode / KTA1664(Y),ROHS Chip FET (field-effect transistor) / 2SJ243,ROHS Chip FET / 2SK508NV(K52),ROHS Chip FET / 3SK318,ROHS Chip FET / 2SK1824,ROHS Plug-in Relay / G5V-1,Work voltage 9V/DC,ROHS Plug-in porcelain filter / LTM450FW,450kHz 7kHz,ROHS Plug-in porcelain filter / LTM450GW,450kHz 5kHz,ROHS Plug-in IF filter / 49.95MHz 7.5KHz,U-5*2,ROHS Chip resistor / 0603,0R 5%,ROHS Chip resistor / 0603,10R 5%,ROHS

U304

U803

U401

U301, U303, U333

D839

DD2

D23

D65, D66, D18, D68, D34, D36, D501

D58, D558, D27, D518

D14

D21, D22, D26, D50

D9, D10, D11, D12

D30,

D16, D6

D31, D32

D13, D15

D19

D7, D921

DD1

D838

Q85

Q70

Q402, Q482, Q682, Q472

Q403, Q423

Q29, Q30, Q34, Q605

Q38

Q42

Q31

Q94

Q78

Q23, Q25

Q501, Q531

Q15

Q87, Q88, Q89, Q14

Q20, Q3, Q6, Q19

Q33

Q7, Q12

Q11, Q10

Q21, Q26

Q50, Q51, Q52, Q53, Q550, Q752, Q711

K101, K102

CF1

CF2

XF1, XF2

L50, R32, R44, R277, R316, R505, R347,

R352, R353, R354, R355, R563, R358, R413,

R559, R5, R315, R346, R887, R367,R15, R112, R288

2RS1-16-101J

2RS1-16-102J

Chip resistor / 0603,100R 5%,ROHS

Chip resistor / 0603,1K 5%,ROHS

R107, R133, R167, R289, R298, R88,

R239, R502, R616, R159, R160, R150, R236 R172, R181, R853, R815, R827, R809,

R814, R10, R281, R808, R689, R664, R682, R11, R13, R385, R386, R387, R388, R389, R667, R681, R683, R684, R685, R686, R687, R688, R970, R971, R984, R988, R989,] R663, R169, R275, R384, R412, R627, R4,

+ 29 hidden pages

Kirisun PT8200 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual