Kirisun PT6800 Service Manual

PT6800 Service Manual

Dangerous!

Do not connect the AC power or DC power over 8.6V with

any connector or terminal of the radio. Otherwise it will cause

fire, electric shock or damage to the radio.

Warning!

Do not reverse power connection.

It may cause harm to the radio if signal input on the antenna

connector is larger than 20 dBm (100mW).

Do not turn on the radio before the antenna or load

connection is completed.

If the antenna has been damaged, do not use the radio.

Damaged antenna may cause light burning on skin.

Though the radio is waterproof, it's better to avoid putting it

in rain or snow, or any other liquid to ensure its life and

performance.

Statement!

Kirisun Electronics (Shenzhen) Co., Ltd owns the copyright

of KSP6800 software.

Unauthorized duplication of KSP6800 software is strictly

prohibited.

Kirisun Electronics (Shenzhen) Co., Ltd owns the copyright

of the MCU software.

Kirisun Electronics (Shenzhen) Co., Ltd owns the copyright

of the radio outward appearance/structure/circuit design.

Kirisun Electronics (Shenzhen) Co., Ltd owns the copyright

of this service manual. Unauthorized publication is prohibited.

Kirisun Electronics (Shenzhen) Co., Ltd owns the

trademarks “KIRISUN”, “

”, and “科立讯”.

Contents

Chapter 1 Overview .......................................................................................... 1

Chapter 2 External View and Functional Keys ................................................ 1

Chapter 3 Mode Introduction ........................................................................... 2

Chapter 4 Circuit Description........................................................................... 3

Chapter 5 Function Description and Parameter Setting................................... 8

Chapter 6 Disassembly for Repair.................................................................. 10

Chapter 7 Adjustment ..................................................................................... 12

Chapter 8 Specifications ................................................................................. 16

Chapter 9 Servicing and Testing Equipment.................................................. 16

Chapter 10 Troubleshooting ........................................................................... 16

Appendix 1 Abbreviations .............................................................................. 17

Appendix 2 Electronic Parts List.................................................................... 17

Appendix 3 Structural Parts List .................................................................... 23

Appendix 4 Accessories.................................................................................. 24

Figure 1 PT6800 Block Diagram ................................................................... 25

Figure 2 PT6800 Main Board Schematic Circuit Diagram ............................ 26

Figure 3 PT6800 Main Board Top Layer Position Mark Diagram ................27

Figure 4 PT6800 Main Board Bottom Layer Position Mark Diagram ..........28

Figure 5 PT6800 Main Board Top Layer Position Value Diagram................ 29

Figure 6 PT6800 Main Board Bottom Layer Position Value Diagram.......... 30

Figure 7 PT6800 Key Board Schematic Circuit Diagram.............................. 31

Figure 8 PT6800 Key Board Top Layer Position Mark Diagram .................. 32

Figure 9 PT6800 Key Board Bottom Layer Position Mark Diagram ............ 33

Figure 10 PT6800 Key Board Top Layer Position Value Diagram................ 34

Figure 11 PT6800 Key Board Bottom Layer Position Value Diagram.......... 35

Figure 12 PT6800 PTT Board Schematic Circuit Diagram ........................... 36

Figure 13 PT6800 PTT Board Top Layer Position Mark Diagram................ 37

Figure 14 PT6800 PTT Board Bottom Layer Position Mark Diagram.......... 37

Figure 15 KB-36C Schematic Circuit Diagram ............................................. 38

Figure 16 KBC-60Q Schematic Circuit Diagram .......................................... 39

Figure 17 PCB Layout 1................................................................................. 40

Figure 18 PCB Layout 2................................................................................. 41

PT6800 Service Manual

Chapter 1 Overview

1.1 Introduction

This manual applies to the service and maintenance of

PT6800 trunking portable radios, and is intended for use by

engineers and professional technicians that have been trained

by Kirisun. It contains all required service information for the

equipment. Kirisun reserves the right to modify the product

structure and specifications without notice in order to enhance

product performance and quality. You can also log on our

website www.kirisun.com

manual or contact your local dealer or us.

Please read this manual before repairing the product.

1.2 Safety Precautions
* Electromagnetic Energy Radiation

Radios will generate and radiate electromagnetic energy

during transmit mode.

The safety design of Kirisun radios complies with national

and international standards.

In order to obtain best performance, and to guarantee that

the electromagnetic radiation does no harm to you, always keep

the radio vertical to the ground and make sure that the

microphone is 2-5cm from your mouth while using the radio.

* Explosive Atmosphere

It’s prohibited to use or repair the radio in the following

places:

Hospital, health center, airport, or where “TURN OFF

TWO-WAY RADIO” signs have been posted.

Any area with a potentially explosive atmosphere (e.g.

orlop deck of the ship, storage and transportation equipment for

fuel and chemical etc.)

Any place near blasting sites or area with electrical blasting

cap.

It is also prohibited to change or charge the battery in any

area with a potentially explosive atmosphere.

* Antenna

If the antenna has been damaged, do not use the radio.

Damaged antenna may cause light burning on skin.

* Replacement Parts

All components used for repair should be supplied by

Kirisun.

Components of the same type available on the market are

to download the latest service

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 application form as below.

e.g.

Component Application Form

Radio

Model

Component

PT6800-01 FET Q3 RD01MUS1 105-RD01MU-R01 1

PT6800-01 Triode Q49 2SC5108（Y） 104-SC5108-001 1

Position

Mark

Model/

Specifications

Parts No. Qty

1.3 Service

All the Kirisun products are subject to the service warranty.

After-sales service will be provided, and the length of

warranty is stated by Kirisun. The radio and its accessories are

all in the warranty. However, in one of the following cases,

charge free service will not be available.

* No valid warranty card or original invoice.

* Malfunction caused by disassembling, repairing or

reconstructing the radio by users without permission.

* Wear and tear or any man-made damage such as mechanical

damage, burning or water leaking.

* Product’s serial number has been damaged or the product

trademark is difficult to identify.

After the warranty expires, lifetime service is still available.

We also provide service components to service stations and

staffs.

Chapter 2 External View and Functional

Keys

2.1 External View and Functional Keys

See Figure 2.1.

Figure 2.1

A. LED Indicator

Lights red while transmitting; lights green while receiving;

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PT6800 Service Manual

flashes red while in low battery power.

B. On/Off/Volume Control Knob

Rotate clockwise till a sound of click is produced to turn on

the radio; and rotate anticlockwise till a sound of click is

produced to turn off the radio. Rotate this knob to adjust the

volume while the radio is on.

C. Rotary Encoder

Rotate this knob to select your desired call address or

features for setting.

D. Antenna

E. Emergency Button

Press it to enable the “Emergency Call” function.

F. Clear Button

Press to return to Trunking Mode while in Conventional

Mode, or to end a call.

G. PTT (Push-To-Talk) Button

Press to call or transmit voice.

H. Redial/Monitor Button

Press to redial a number or monitor the channel.

I. “

” Key

Press to enter the Menu Mode.

J. “

” Key

Scroll upwards to view the previous page.

K. “ ” Key

Scroll downwards to view the next page.

L. “

” Key

Press to view status messages or data messages.

M. Numeric Keypad

Press to input the call address or dial a number.

N. Universal Connector

Connect to earphone or optional speaker/microphone.

2.2 Display Screen

Icon Description

Indicates the signal strength.

SVC

MON

Appears when a control channel is found. Flashes while

the radio is hunting for a control channel. (Trunking

Mode only)

Appears while you are monitoring a channel by pressing

the Monitor button. (Conventional Mode only)

SCN

Appears while you are scanning. (Conventional Mode

only)

Lo

Appears when the transmitting power is low.

Appears when you are in home system, and disappears

when in roaming. (Trunking Mode only)

Appears when there is new data received, including

voice message, digital data message and missed calls.

(Trunking Mode only)

Appears when you are in roaming. (Trunking Mode

only)

Appears when the keypad is locked.

Appears when the Rotary Encoder is locked.

Appears when the setting is not All Mute, and the ring

alert function is active.

Indicates the current battery power level, and flashes

when the battery power is low.

Chapter 3 Mode Introduction

3.1 Mode Introduction

Mode Function How to Enter

Trunking

Mode

User

Mode

Conventional

Mode

Panel Test Mode

Panel Tuning Mode

Version Information

Mode

PC Test Mode

3.2 Panel Test Mode

Please refer to Chapter 7 Adjustment.

3.3 Panel Tuning Mode

Please refer to Chapter 7 Adjustment.

3.4 PC Test Mode

2

For normal use.

Used by the

dealer to check

the fundamental

characteristics.

Used by the

dealer to tune the

radio.

Used to check

the version.

Used to tune the

radio by PC.

Press the Clear Button to return to

Trunking Mode while in

Conventional Mode.
Press “ ” key to enter

Conventional Mode while in

Trunking Mode. Or press the

combination keys set in PC

software to switch between the

two modes.
Press and hold “ ” key while

turning the radio power ON.

Press and hold “ ” key while

turning the radio power ON.

Press and hold “ ” key while

turning the radio power ON.

Run KSP6800 programming

software. Click “Program” in the

main menu, and then click “Test

Mode” in the pull-down menu.

PT6800 Service Manual

Please refer to Chapter 7 Adjustment.

Chapter 4 Circuit Description

4.1 Preface

This portable radio is FM trunking portable equipment.

4.2 Frequency Configuration

Figure 4.1 Frequency Configuration

The receiver adopts double mixing. The first IF is

51.65MHz and the second IF is 450KHz.

The first local oscillator signal of the receiver is generated

by the frequency synthesizer. The second local oscillator signal

is generated by quadrupler X1.

The transmitter signal is directly produced by the frequency

synthesizer.

The reference frequency of the frequency synthesizer is

provided by TCXO.

4.3 Principle of Receiver (RX)

Figure 4.2 Principle of Receiver

Front End

The signal coming from the antenna passes through the

RX/TX switch circuit (D1, D39, D7, and D8), and passes

through a BPF consists of two LCs to remove unwanted

out-of-band signal, and then is routed to the low noise amplifier

(LNA) consists of Q18 and its peripheral components where it

is amplified.

Output signal from the LNA passes through a BPF consists

of three LCs to further remove unwanted out-of-band signal,

and then goes to the first mixer (Q19).

AGC Circuit

AGC circuit, which consists of Q17 and its peripheral

circuit, will work to reduce the gain of Q18 only when the input

signal is oversize.

First Mixer

The receiving signal from LNA is mixed with the first local

oscillator signal from the frequency synthesizer to produce the

first IF signal (51.65MHz).

IF Circuit

The first IF signal passes through crystal filter (XF1) to

remove the adjacent channel signal and signal outside the

adjacent channel. Then the filtered signal is amplified by the

first IF amplifier (Q20), and is routed to the IF processing IC

(IC4, TA31136).

IF IC consists of the second mixer, IF amplifier, limiter,

discriminator, noise amplifier, and audio low pass filter.

Signal (12.8MHz) from X1 is multiple-amplified by Q15

and its peripheral circuit to produce the second local oscillator

signal (51.2MHz). Then the second local oscillator signal

(51.2MHz) is mixed with the first IF signal (51.65MHz) in IC4

to generate the second IF (450KHz). And then the second IF

signal is amplified and limited in IC4, filtered in the ceramic

filter (CF1 or CF2, 450KHz), and demodulated in IC4. After

that, the demodulated signal is routed to the audio circuit to

output audio signal.

The selection circuit of the second IF filter consists of CF1,

CF2, D18, D19 and the peripheral circuit. When the radio is set

to wideband, CF2 is put through and takes effect, while CF1 is

cut off; when the radio is set to narrowband, CF1 is put through

and takes effect, while CF2 is cut off.

Squelch Circuit

The demodulated signal from IC4 is sent to the internal

noise amplifier in IC4. Then the resulting signal is further

amplified in Q21 and demodulated in D22, and then the

resulting DC level is routed to the MCU squelch control circuit.

This voltage is in inverse proportion to the input signal.

4.4 Principle of Transmitter (TX)
TX Power Amplification

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PT6800 Service Manual

Figure 4.3 Principle of Power Amplifier and Antenna Switch

The modulated RF signal from VCO is amplified in Q2, Q4,

Q59, Q5, and Q3, and is routed to Q1 for power amplification.

Grid bias of Q1 and Q3 is controlled by the APC circuit.

Through changing the grid bias voltage, the Tx output power

can be controlled conveniently.

APC (Automatic Power Control) Circuit

R57, R65, and R66 are used to test the power amplification

current. IC3A is the sampling amplifier for the power

amplification current. IC3B is the power comparator amplifier.

If the Tx output power is too high, the power amplification

current and IC3A output will increase; IC3B output voltage will

decrease, so the bias voltage of Q1 and Q3 will also decrease,

which causes the Tx output power to be lowered, and vice versa.

Thus the output power of Tx can keep stable under different

working conditions.

MCU can set the power through changing the voltage input

to IC3B.

4.5 Principle of Frequency Synthesizer

The oscillation frequency from VCO goes to IC2 where it is

divided by the programmable divider and is then compared

with the reference frequency to obtain the error signal. The

signal is then filtered by a low pass filter, and is routed to VCO

to change the oscillation frequency of the VCO, enabling the

frequency to reach the set value. Then the VCO is locked.

Unlock detection: When PLL is unlocked, Pin 14 of IC2

will output the low level signal to MCU. Then MCU prohibits

the Tx from transmitting and makes an alert tone.

Q13 and other relevant circuits are used to switch the low

pass filters.

4.6 Audio Processing Circuit

Figure 4.4 Frequency Synthesizer

The radio adopts PLL type frequency synthesizer.

The frequency synthesizer consists of reference oscillator,

voltage control oscillator (VCO), programmable divider, phase

comparator, and low pass filter.

Tx VCO unit consists of Q6, D2, D4, D5, and D6. D9 is the

modulation circuit of Tx VCO.

Rx VCO unit consists of Q11, D11, D12, D13, and D14.

IC2 (ADF4111) is the PLL integrated circuit, which consists

of programmable reference divider, programmable divider,

phase comparator, and charge pump.

The low pass filter consists of R43 and C96.

The reference frequency is provided by X1 (TCXO,

12.8MHz).

The reference frequency from TCXO (Temperature

Controlled Crystal Oscillator) is divided by the programmable

reference divider in IC2 to produce reference frequency of

5KHz or 6.25KHz (determined by the preset channel frequency

and is controlled by MCU).

Figure 4.5 Audio Processing

IC6 (AK2346) is a special voice processing chip, which is

provided with functions of amplification, filtering,

pre-emphasis, de-emphasis, scrambling, companding, MSK

MODEM, etc. Most of the radio’s voice processing is done by

IC6.

MIC Signal Processing

The voice signal coming from the MIC passes through the

AGC circuit, and goes to IC24. One branch of the signal is

routed to IC24B (VOX circuit) for amplification, and then goes

to D35, where it is processed and turned into DC voltage, and

then sent to MCU for processing. The other branch of the signal

is routed to IC24A for amplification, and then goes to pin3 of

IC6, where it is amplified, filtered, companded (optional),

pre-emphasized, scrambled (optional), and limited, and then is

output from pin7 of IC6. After that, the resulting signal is sent

to VCO for modulation together with CTCSS/DCS. The 2T/5T

signal is input to pin6 of IC6. After being limited and amplified,

it is then output from pin7 of IC6, and is routed to VCO for

modulation.

RX Audio Signal Processing

Voice signal output from IC4 is divided into two parts. One

branch of the signal is routed to the low pass circuit consists of

IC5 and other components, where it is amplified and filtered (to

remove the voice signal) to obtain more purified CTCSS/DCS

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PT6800 Service Manual

signal, which is then sent to MCU for processing. The other

branch of the signal is routed to pin23 of IC6. After being

amplified and filtered, the signal is divided into two branches.

One branch (DTMF/2T/5T signals) is output from pin21 of IC6.

The DTMF/2T/5T signals passes through the high pass circuit

consists of Q30, Q31, and other components to remove the

subaudio signal. The DTMF signal goes to IC10 (HT9172

special DTMF decoding chip) to be decoded, and then is sent to

MCU for processing. The 2T/5T signal goes to IC1, where it is

filtered and reshaped, and then is routed to MCU for processing.

The other branch (voice signal) is scrambled, de-emphasized,

and companded, and is output from pin18 of IC6. Then the

resulting signal is input to pin19 of IC6. After being buffered

and amplified, it is then output from pin20 of IC6.

IC13 is a voice memory chip, which is stored with voices of

channel indication etc. Once the rotary encoder is switched, the

speaker will announce the current channel number. User can

press the preprogrammed “Voice Alert” key to repeat the

current channel number.

After the RX audio signal, voice alert signal, 2T/5T/DTMF

signal, alert tone signal, and emergency alarm signal join

together, they are amplified by audio power amplification IC9,

and then drive the speaker.

Impedance of the speaker: 16

Note:

* None of the terminals of the speaker should be grounded.

* The emergency alarm sound has no volume limit.

4.7 Power Supply

The radio adopts 7.2V battery as power supply. The Tx

power amplification circuit (Q1 and Q3) and the Rx audio

power amplifier (IC9) directly adopts the battery as power

supply. Power of other circuits is supplied by the regulated

voltage (5V).

Q40 and Q45: 5V low dropout, micro-power regulator.

Q43: 5T switch, controlled by MCU.

5T: Supplies power for front end of Tx.

Q39: 5R switch, controlled by MCU.

5R: Supplies power for RF amplifier, mixer, IF processing

unit, and audio signal processing unit etc. of Rx.

Q44: 5C switch, controlled by MCU.

5C: 5V power supply under SAVE control. Supplies power

for frequency synthesizer.

4.8 MCU Unit

MCU unit controls the operation of each unit of the radio so

that all functions can be realized.

Communicate with external PC.

Access the status data of the radio.

Control the PLL to generate Rx and Tx local oscillator

frequencies.

Obtain status parameters of current channel.

Control status of LED indicator.

Control power supply for each unit.

Check the actions of each functional key.

Generate CTCSS signal.

Generate DCS signal.

Generate power control signal.

Perform CTCSS decoding.

Perform DCS decoding.

Test and control the squelch.

Control content of voice alert.

Memory (E

2

PROM, A T24C256):

The memory is stored with channel data, CTCSS/DCS data,

other data for function setting, and parameter adjusting data of

the radio.

CTCSS/DCS Signal Encoding and Decoding

The CTCSS/DCS signal (output from pin24 and pin28,

PWM wave) generated by MCU is routed to VCO and TCXO

respectively for modulation.

The CTCSS/DCS signal from the receiver is decoded by

MCU. MCU checks if the CTCSS/DCS signal in the receiving

signal matches the preset CTCSS/DCS of the radio, and

determines whether to open the speaker or not.

CTCSS Signal

CTCSS (Continuous Tone Control Squelch System) is a

squelch control system which is modulated on carrier and is

guided by a continuous subaudio signal. If CTCSS is set, the

communication between the transmitting and receiving radios

can be realized only when the two radios has set the same

CTCSS. In doing this, disturbance from other signals can be

avoided.

PT6800 has 39 groups of standard CTCSS frequencies for

your selection. See table 4.1.

CTCSS signal is generated by MCU (PWM waveform), and

is passed through low pass filter consists of RC to remove high

frequency component (above 300Hz). Then the resulting signal

is routed to VCO for modulation.

Table 4.1 CTCSS Frequencies

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PT6800 Service Manual

No. Frequency

1 67.0 11 94.8 21 131.8 31 186.2

2 69.3 12 97.4 22 136.5 32 192.8

3 71.9 13 100.0 23 141.3 33 203.5

4 74.4 14 103.5 24 146.2 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 Signal

DCS (Digital Code Squelch), which is used to control the

squelch, is a series of continuous digital codes modulated on

carrier together with voice signal. If DCS is set, the speaker can

be opened only when the radio receives signal with the same

DCS, so disturbance of unwanted signals can be avoided.

PT6800 has 83 standard codes (inverted and non-inverted)

for your selection. See table 4.2.

DCS signal is generated by MCU (PWM waveform). It

passes through the low pass filter consists of RC to remove the

high frequency components (above 300Hz). Then the resulting

signal is routed to VCO and TCXO for modulation, with HF

components of the DCS signal being modulated by VCO, and

the LF components of the DCS signal being modulated by

TCXO.

The DCS signal coming from the receiver is routed MCU

for decoding. MCU checks if the DCS code in the received

signal matches the preset DCS of the radio, and determines

whether to open the speaker or not.

Table 4.2 DCS codes

023 114 174 315 445 631

025 115 205 331 464 632

026 116 223 343 465 654

031 125 226 346 466 662

032 131 243 351 503 664

043 132 244 364 506 703

047 134 245 365 516 712

051 143 251 371 532 723

054 152 261 411 546 731

065 155 263 412 565 732

071 156 265 413 606 734

072 162 271 423 612 743

[Hz]

No. Frequency

[Hz]

No. Frequency

[Hz]

No. Frequency

[Hz]

073 165 306 431 624 754

074 172 311 432 627

4.9 Semiconductor Data
MCU Description

Table 4.3 Description for Ports of Microprocessor (M30620)

No. I/O Port Name Function

1 O VCCN PLL reference frequency adjust

2 O TONEO 2T/5T/DTMF/BEEP signal output

3 I TONEI 2T/5T signal input

4 O E-SDA E2PROM data line

5 O E-SCL E2PROM clock line

6 - C-BYTE GND

7 - C-CNVSS GND

8 O SHIFT Clock beat shift H: Clock beat shift

9 O E-TEST E2PROM write protect pin H: Not writable L: Writable

10 I RESET Reset pin

11 O XOUT Clock output pin

12 - VSS GND

13 I XIN Clock input pin

14 - VCC 5V power supply

15 - CMMI GND

16 I INTO Power down detect pin

17 O A-RDT AK2346 control pin

18 O A-TCLK AK2346 control pin

19 O A-SCLK AK2346 control pin

20 O A-DI/O AK2346 control pin

21 O A-TDATA AK2346 control pin

22 O A-DIR AK2346 control pin

23 - NC -

24 O CTCSS VCO CTCSS/DCS output pin (to VCO for modulation)

25 O PLL-LP

26 O PC/TV Power control or Rx pass band tuning voltage control

27 - NC -

28 O

29 O C-TXD1 Serial data output, communicate with PC

30 O C-RXD1 Serial data input, communicate with PC

31 - C-CLK1 GND

32 - NC -

33 - ICA -

34 O PABC Power control for final power amplifier H: Transmitting

35 O APC2 SW Power amplifier control switch H: Transmitting

36 O APC1 SW Power amplifier control switch L: Transmitting

37 O RX SW Rx VCO power switch L: Receiving

38 O TX SW Tx VCO power switch L: Transmitting

39 - C-HOLD GND

40 I PLL-UL PLL unlock detect pin

41 O PLL-STB PLL enable pin

42 O PLL-DATA PLL data pin

43 O PLL-CLK PLL clock pin

44 - C-VCC Connect to power supply

45 O

46 O GREEN Green LED H: ON

47 O RED Red LED H: ON

48 O 5TC 5T control switch L: 5T is 5V

49 O 5RC 5R control switch L: 5R is 5V

50 O 5CC Battery save control switch L: 5C is 5V

51 O W/N N Wideband/Narrowband-Narrowband H: Narrowband

52 O W/N W Wideband/Narrowband-Wideband H: Wideband

53 O AFCO AF power amplifier control H: Amplifier works

54 O RX MUTE Rx mute control L: Mute

55 I W-BUSY Voice announcing chip busy signal detect H: Busy

CTCSS

MAX AF

PLL - low pass filter toggle switch

H: Switch above center frequency point

CTCSS/DCS output pin (to TCXO for modulation)

TCXO

Max. volume control L: Max. volume

SW

6

PT6800 Service Manual

56 O W-DATA Voice announcing data signal

57 O W-SCLK Voice announcing clock signal

58 O W-MUTE Voice announcing mute control L: Mute

59 O S-SCK -

60 - ACC 5V power supply

61 O S-SI -

62 - VSS GND

63 O S-SO -

64 O S-CS -

65 - - -

66 I PTT PTT key input L: Transmitting

67 I H-D3 DTMF data input

68 I H-D2 DTMF data input

69 I H-D1 DTMF data input

70 I H-D0 DTMF data input

71 I H-DV DTMF data input

72 I DN Encoder switch signal

73 I UP Encoder switch signal

74 O L-AO LCD control signal

75 O L-AO LCD control signal

76 O L-AO LCD control signal

77 O L-AO LCD control signal

78 O L-AO LCD control signal

79 I/O K1 Keyboard signal

80 I/O K1 Keyboard signal

81 I/O K1 Keyboard signal

82 I/O K1 Keyboard signal

83 I/O K1 Keyboard signal

84 I/O K1 Keyboard signal

85 I/O K1 Keyboard signal

86 I/O K1 Keyboard signal

87 O LAMP Backlight control signal H: ON

88 I BATT Battery voltage detect

89 I RSSI Received signal strength indication detect

90 I BUSY Noise level detect

91 I VOX Voice control level detect

CTCSS/DCS

92 I

93 I PF Programmable button input

94 - AVSS GND

95 I MANDOWN MANDOWN signal input L: Valid

96 - VREF Connect to power supply

97 - AVCC Connect to power supply

98 O VOX SW VOX power control L: VOX enabled H: VOX disabled

99 O MIC MUTE MIC mute switch L: Mute

100 O HPF PC

Table 4.4 Function Description of Semiconductor Components

Position

Mark

IC11 PST9140NR MCU reset circuit

IC14 TC75W51FU MIC amplification, limitation, and filtering

IC2 ADF4111 Frequency synthesizer

IC3 NJM2904 APC, voltage comparison, driving

IC4 TA31136

IC5 NJM2902

IC6 AK2346 Audio processing chip

IC7 M30620 MCU

IC8 AT24C256

IC9 TDA8541 Rx audio power amplifier

RD07L RQA0002 Tx final power amplifier

CTCSS/DCS signal input

IN

High pass power control L: Scramble enabled H:

Scramble disabled

Model Function Description

Rx second local oscillator, second IF
amplification, limitation, demodulation, and
noise amplification

Rx demodulation signal amplification and
filtering

E2PROM, stores channel frequency data,
function setting parameters, and adjusting status
parameters

Q10 DTC144EUA APC control switch

Q11 2SK508NV Rx VCO oscillator circuit

Q12 DTA144EE APC output switch

Q12 DTA144EE APC control switch

Q13 2SC4116 PLL low pass switch

Q14 2SC4617 VCO power supply filter

Q15 2SC5108 Rx second oscillator frequency multiplier circuit

Q16 DTC144EE APC control switch

Q17 2SK1829 Rx high power amplifier gain control switch

Q18 3SK318 Rx high power amplifier

Q19 3SK318 First mixer

Q2 2SC5108 VCO buffer amplifier

Q20 2SC5108 First IF amplifier

Q21 2SC4617 Rx noise amplifier

Q22 DTC144EE Red LED drive

Q23 DTC144EE Wideband-Narrowband noise toggle switch

Q24 DTC144EE Green LED drive

Q25 DTA144EE

Wideband-Narrowband discriminator toggle
switch

Q26 DTA123JE 2T high pass filter control switch

Q29 2SK1824 2T high pass filter control switch

Q3 RD01MUS1 Tx power amplifier drive

Q30 2SC4617 2T high pass filter circuit

Q31 2SC4617 2T high pass filter circuit

Q32 DTC144EE Beat control switch

Q33 2SK1824 Rx audio mute switch

Q34 2SK1824

Rx audio output switch, disconnect when
emergency alarm ON.

Q35 DTC144EE Audio power amplifier control switch

Q36 DTA144EE MIC amplification unit power switch

Q37 2SK1824 Voice alert switch

Q38 2SA1586 External PTT detect switch

Q39 ST2301 5R switch

Q4 2SC5108 VCO buffer amplifier

Q40 XC6024B502MR 5V regulated voltage output

Q41 2SC4116 MIC AGC control switch

Q42 DTC144EE External PTT detect switch

Q43 ST2301 5T switch

Q44 DTA123JE 5C switch

Q45 XC6024B502MR 5V regulated voltage output

Q47 2SA1586 MIC AGC control switch

Q48 ST2302 External speaker control switch

Q49 2SC5108 Tx first amplifier

Q5 2SC3356 Tx second amplifier

Q51 2SK1824

Rx audio output switch, connect when
emergency alarm ON.

Q6 2SK508NV Tx VCO oscillator circuit

Q7 DTA143TE Tx VCO control switch

Q8 2SC5108 VCO buffer amplifier

Q9 DTA143TE Rx VCO control switch

Table 4.5 Function Description of Diodes

Position

Mark

D1 HVC131 Tx antenna switch diode

D10 MA2S111

D11 HVC376

D12 HVC376 Rx VCO oscillation varactor diode

D13 HVC376 Rx VCO oscillation varactor diode

D14 HVC376

D15 HZU5ALL APC output voltage limiting diode

D16 MA2S111 VCO power filtering acceleration diode

D17 HSC277 VCO output switch

D18 DAN222

D19 DAN222

Model Function Description

Unlock detect diode

Rx VCO oscillation varactor diode

Rx VCO oscillation varactor diode

Rx second IF filter wideband-narrowband toggle
switch

Rx second IF filter wideband-narrowband toggle
switch

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PT6800 Service Manual

D2 HVC376

D21 HVC355B

D22 MA742

D23 HVC355B

D26 LED green

D27 HVC376B Rx bandpass filter varactor diode

D28 LED red

D28 HVC376B Rx bandpass filter varactor diode

D29 HVC376B Rx bandpass filter varactor diode

D3 HSC277 VCO output switch

D30 HVC376B Rx bandpass filter varactor diode

D31 LED green Receiving indication

D35 MA742 VOX detect diode

D36 MA742 MIC AGC detect diode

D37 MA742 MIC AGC detect diode

D39 HVC131 Tx antenna switch diode

D4 HVC376 Tx VCO oscillation varactor diode

D40 HVC376B Rx bandpass filter varactor diode

D5 HVC376 Tx VCO oscillation varactor diode

D6 HVC376 Tx VCO oscillation varactor diode

D7 HSC277 Antenna toggle switch

D9 1SV278 Tx VCO modulation diode

Table 4.6 Features of Crystal Filter XF1

Item Rated Value

Nominal center frequency 51.65MHz

Pass bandwidth ±7.5kHz or higher

40dB stop bandwidth ±20.0kHz or lower

Pulse 1.0dB or lower

Insertion loss 3.0dB or lower

Guarantee attenuation 80dB or higher

Terminal impedance 330

Table 4.7 Performances and Features of CF1 LTWC450H

Item Rated Value

Nominal center frequency 450kHz

6dB bandwidth ±3.0kHz or higher

50dB bandwidth ±9.5kHz or lower

Pulse 2.0dB or lower

Insertion loss 6.0dB or lower

Guarantee attenuation 47.0dB or higher

Terminal impedance 1.5k

Table 4.8 Performances and Features of CF1 LTWC450F

Item Rated Value

Nominal center frequency 450kHz

6dB bandwidth ±6.0kHz or higher

50dB bandwidth ±12.5kHz or lower

Pulse 2.0dB or lower

Insertion loss 6.0dB or lower

Guarantee attenuation 47.0dB or higher

Terminal impedance 1.5k

Tx VCO oscillation varactor diode

Rx bandpass filter varactor diode

Noise demodulation

Rx bandpass filter varactor diode

Receiving indication

Transmitting indication

Chapter 5 Function Description and

Parameter Setting

5.1 Characteristics

1) The radio conforms to the MPT1327 signaling protocol

standard, applies to a variety of base station systems including:

Tait, TaiHe, WanGe, QiaoHang etc., and supports various call

methods.

2) The radio conforms to the MPT1343 standard.

3) The radio is provided with special functions of remote killing,

reactivating, and dynamic grouping.

4) 32 conventional channels, standard CTCSS/DCS signaling,

BCL, TOT, and scan function.

5) 16 test frequencies and parameter indications, which are

convenient for the dealer to test the radio.

6) Power, deviation, sensitivity and other parameters are

programmed at the factory.

5.2 Trunked Features

1) Trunking signaling

The radio conforms to MPT1327 trunking signaling and

MPT1343 standard.

2) Hunt

64 control channels can be programmed for the radio, and

the radio will hunt for a control channel automatically.

3) Trunking calls

The following calls can be performed by the radio:

inter-prefix individual call, inter-prefix group call, inter-fleet

individual call, inter-fleet group call, voice call, status message

call, short data message call, conference call, broadcast call,

priority call, emergency call, PABX call, PSTN call, NPD

transfer, own call diversion, third party call diversion, include

call, ALLI call, network operator service call, technician call,

don’t disturb facility, queue incoming call, etc.

4) Emergency call

Press the orange “Emergency Button” to send an emergency

call in case of emergency.

5) Dynamic grouping

Dynamic grouping function allows the base station to group

units as a new team by remote control.

6) Remote killing

The base station can give remote killing order to the lost or

stolen radio to prohibit its operation.

7) Reactivating

The base station can give reactivating order to the remote

killed radio so that it can return to normal operation.

8) Missed calls

Missed calls can be displayed, and the status of the missed

calls can be stored.

9) Contact list

Large memory of 200 contacts.

10) Status message

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PT6800 Service Manual

Content of status messages can be programmed by PC

software. Alert tone sounds while messages are received, and

the status message can be checked by the user.

11) Redialing

10 groups of dialed number can be stored in the radio. Press

the Redial Button, the dialed number can be displayed on LCD,

select the number you want and press PTT or “#” key to call.

12) Don’t disturb

This function allows the radio to refuse voice calls, status

message calls, and short data calls.

5.3 Conventional Features

1) CTCSS/DCS

The dealer may have set CTCSS/DCS on channels of the

radio. In doing this, other irrelevant calls using the same

channel can be ignored. If a channel has set CTCSS/DCS, the

squelch can be opened only when the received signal has the

same CTCSS/DCS.

2) DTMF dialing

Input the number while pressing the PTT key. Then you can

hear DTMF sound from the speaker.

3) Busy channel lockout (BCL)

This function can prevent other radios on the same channel

from being interfered. When the channel is occupied, the radio

will prohibit transmitting signals.

4) Time-Out Timer (TOT, TOT pre-alarm, TOT-rekey, TOT

reset)

TOT is used to prevent any person from using a channel to

transmit for an extended period of time. If the continuous

transmission time is longer than the preset time limit, the radio

will make alarm tone and stop transmitting.

5) Channel scan

32 conventional channels can be set through PC

programming software, and the parameters on each channel can

be set, such as CTCSS/DCS encoding and decoding,

wideband/narrowband, BCL, high power/low power,

compander, channel name, etc. If signals are detected while in

channel scanning, the scanning will pause and the information

of the paused channel will be displayed.

5.4 General Features

1) Channel spacing

The channel spacing can be selected (12.5kHz/25kHz)

through PC programming software.

2) Signal strength display

The real time signal strength can be displayed on the screen.

3) Battery power display and low battery warning

The battery power can be displayed on the screen and when

the battery power is low, the battery indicator will flash to

warn.

5.5 Functional Parameter Setting

The radio’s functional parameters have been set before

leaving the factory. However, due to different requirements of

users, the radio’s trunked features, operating frequency,

channels, CTCSS/DCS, scan, and other function parameters

should be reset. Therefore, the company has specially designed

a set of Chinese/English programming software KSP6800 with

friendly interface, convenient operation and visualized display

for setting functional parameters of the radio.

Steps for setting the functional parameters of the radio by

computer are as follows:

A. Install KSP6800 on the computer.

B. Connect the radio to the COM port of the computer with

the special programming cable. Refer to the figure below.

Note: While connecting, make sure that the power of the

computer and the radio are both turned off.

Computer

Programming cable

for PT6800

Radio

C. Turn the computer power ON.

D. Turn the radio power ON.

E. Run the KSP6800 programming software by double

clicking its executive program.

F. Click “Program” in the main menu of KSP6800, and

click “Read from radio” in the pull-down menu to read

parameters of the radio to the computer; click “Write to radio”

in the pull-down menu to write parameters in the computer to

the radio.

G. The following parameters can be set by using KSP6800

according to requirements of the user:

1) Basic parameters of the system

2) System code

3) Channel parameters

4) Frequencies

5) Hunt option of control channel

6) Personalization

7) Call facilities

8) Call scope limit

9) Call address

10) Default call address

11) Contact list and relevant options

12) 5 digit dialed string

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PT6800 Service Manual

13) Security feature

14) Function menu

15) Trunked features

16) Conventional features

17) Conventional channels

18) Power ON message

Please refer to the “Help” document of KSP6800 and

Instruction Manual of PT6800 for details.

Chapter 6 Disassembly for Repair

The radio is a kind of sophisticated communication

equipment with precise structure and small size. You should

disassemble it carefully during the maintenance. The

instructions for the disassembly are as follows.

6.1 Installing/Removing the Battery

6.1.1 Installing the battery

1) Insert the three bulges at the lower end of the battery into the

holes at the lower end of the shell of the radio.

2) Press down the battery to lock it in place until a click is

heard. (See Figure 6.1)

Figure 6.1

6.1.2 Removing the battery

Use your thumb to press the belt clip, and one side of your

index finger to press the release button (See Figure 6.2), the

battery will bounce out automatically. And then pull the battery

away from the radio.

Figure 6.3

6.3 Installing/Removing the Belt Clip

Slide the guide rails on the belt clip along the grooves on

the rear of the battery until the belt clip is hooked. When

removing the belt clip, lift the sheet metal on the top of the belt

clip with your finger nail or a tool while pushing the belt clip

upward. (Refer to Figure 6.4)

Figure 6.4

6.4 Removing the Front Cabinet from the Chassis

1) Pull out the knobs and screw off the antenna;

2) Remove the two nuts of the knobs and nut of the antenna

with a special tool;

3) Remove the two fixing screws at the lower part of the Al

chassis by a hexagonal screwdriver;

4) Insert a flat-blade screwdriver into the slot at the lower part

of the Al chassis, and prize up it. Then pull the chassis to

remove it from the front cabinet.

5) Take off the flat cable connecting the main PCB and the key

board PCB from the main PCB.

See Figure 6.5.

Figure 6.2

6.2 Installing the Antenna

Hold the bottom of the antenna and turn it (clockwise) into

the connector on the top of the radio until secure. See Figure

6.3.

Figure 6.5

6.5 Removing the Main Board from the Al Chassis

1) Remove the top waterproof material;

2) Remove the screw on the PTT board, and then take off the

PTT board;

10

PT6800 Service Manual

3) Remove the screws on the PCB;

4) Remove the solder of the antenna terminal with a soldering

iron. Then take off the main board.

See Figure 6.6.

Figure 6.6

6.6 Removing the Key Board from the Front Cabinet

Remove the screws on the key board, and then you can

separate the key board from the front cabinet. (Refer to Figure

6.7)

Figure 6.7

6.7 Exploded View

No. Part No. Description PCS

1 201-006500-R02 PTT Cover 1

2 201-006500-R05 PTT Key 1

3 202-006500-R01 Rubber PTT Key 1

4 204-006800-R01 LCD Protective Film 1

5 LOGO 1

6 201-006500-R09 Light Guide 1

7 203-000558-R11 Nut for Antenna 1

8 Antenna 1

9 201-006500-R04 Rotary Encoder 1

10 201-006500-R03 Volume Knob 1

11 203-006800-R26 Circlip for Knob 2

12 305-108020-R01 Nut for Knob 2

13 201-006500-R01 Front Cabinet 1

14 204-007200-R02 Tape for Universal Connector PCB 1

15

16 204-006500-R03 Tape for Universal Connector 1

17 204-006800-R22 Universal Connector Cover 1

18 304-30030G-R02

19 204-003208-R02 Waterproof Net for Speaker 1

20 121-100000-R17 Speaker 1

21 Keypad PCB 1

22 302-20060G-R01 Self-tapping Screw ST2.0*6.0 1

23 301-20040G-R01 Machine Screw M2.0*4.0 13

24 Main PCB 1

25 202-003208-R07

26 203-006500-R06 Metal Dome for PTT Key 1

27 PTT Key PCB 1

28 203-000558-R07 Antenna Connector 1

29 202-006500-R03 Top Waterproof 1

30 203-006500-R01 Al Chassis 1

31 202-006500-R02 Main Waterproof 1

32 202-006500-R05 Waterproof for Anode Bracket 1

33 301-20030G-R01 Machine Screw M2.0*3.0 1

34 203-006500-R04

35 202-000558-R08

36 301-20080G-R02 Machine Screw M2.0*8.0 2

37 302-17040G-R01 Self-tapping Screw ST1.7*4.0 1

38 203-006500-R02 Anode Connecting Sheet 1

11

Universal Connector PCB &

FPCB

Screw for Universal Connector

Cover

Heat-conductive Silicone Rubber

Washe r

Battery Contact Sheet

(Anode/Cathode)

Rubber Washer for Battery Contact

Sheet

1

1

1

2

2

PT6800 Service Manual

39 201-006500-R06 Anode Bracket 1

40 204-006200-R04 Sponge Cushion 1

41 120-400000-R13 Flat Cable 1

42 301-20020G-R01 Machine Screw M2.0*2.0 4

43 203-006500-R07 Grounded Sheet 2

44 102-6800CN-R01 LCD Display Module 1

45 203-006500-R03 Keypad Metal Dome 1

46 202-006500-R06 Numeric Keypad 1

47 202-000558-R09 Waterproof MIC Cover 1

48 204-006800-R06 MIC Washer 1

49 204-006500-R01 Dustproof Washer for LCD Lens 1

50 201-006500-R08 LCD Lens 1

Chapter 7 Adjustment

7.1 Adjustment Method

After changing components during the maintenance, it is

necessary to test the radio and adjust its technical parameters.

7.1.1 Components required during adjustment

1) Antenna connector converter

2) Universal connector

7.1.2 Manual tuning method

1) Five frequency points of the radio need to be adjusted.

The following table is the frequencies corresponding to the

numeric keys.

Radio Model Key 1 Key 2 Key 3 Key 4 Key 5

PT6800 (2) 350.05MHz 370.05MHz 389.95MHz 360.05MHz 380.05MHz

PT6800 (4) 400.05MHz 435.05MHz 469.95MHz 417.05MHz 452.05MHz

2) Panel tuning mode (Manual)

Press and hold “

to enter the panel tuning mode.

Press “

” key or “ ” key to select the item you want to

adjust.

Press “

” key to save the adjusted parameters.

Press the “Redial Button” to switch between wideband and

narrowband.

Press key “7” to switch between “Emphasis” and

“De-emphasis”.

Press key “8” to enable or disable “Compander” function.

Press key “9” to enable or disable “Beat Shift” function.

Turn the rotary encoder to adjust the parameters of the radio.

Press key “1”, “2”, “3”, “4”, and “5” to choose the five

frequency points of the radio.

Items need to be adjusted and the tuning points under tuning

mode are listed in the following table:

” key while turning the radio power ON

Item Display Tuning Method Tuning Point Tx/Rx

Frequency FREQUENCY Rotary Encoder Center freq point Tx

High power HIGH POWER Rotary Encoder Five freq points Tx

Low power LOW POWER Rotar y Encoder Five freq points Tx

DQT balance DQT BALANCE Rotary Encoder Five freq points Tx

Max deviation MAX DEV Rotary Encoder Five freq points Tx

QT deviation QT DEV Rotary Encoder Five freq points Tx

DQT deviation DQT DEV Rotary Encoder Five freq points Tx

DTMF deviation DTMF DEV Rotary Encoder Center freq point Tx

FFSK deviation FFSK DEV Rotary Encoder Center freq point Tx

Tone deviation TONE DEV Rotary Encoder Center freq point Tx

Battery detect BATT Rotary Encoder Center freq point Tx

Sensitivity SENS Rotary Encoder Five freq points Rx

Squelch SQL Rotary Encoder Five freq points Rx

RSSI (low) LOW RSSI Rotary Encoder Five freq points Rx

RSSI (high) HIGH RSSI Rotary Encoder Five freq points Rx

3) Parameter adjustment

Rx Part

Set the general test set and the radio, and make sure that the

test set is in its Rx interface, and the radio is in the Tuning

Mode.

1. Sensitivity: SENS

a) Set the signal strength of the general test set to be -119dBm

(wideband/narrowband), set its modulation signal to be 1kHz,

and the deviation to be ±3kHz (wideband), ±1.5kHz

(narrowband). Set the filter of the general test set to be in the

bandpass status.

b) Press “

” key or “ ” key to select SENS in the radio.

Then turn the volume knob of the radio to make the output

audio power indicated in the general test set to be 500mW.

Then adjust the five frequency points.

c) Press key “1”, “2”, “3”, “4”, “5” respectively (corresponding

to the five frequency points of the radio), turn the rotary

encoder to make the SINAD indicated in the general test set to

be  12dB. Then press “

” key to save.

2. Squelch: SQL CLOSE, SQL OPEN

a) Set the signal strength of the general test set to be -121dBm

(SQL OPEN)/-123dBm (SQL CLOSE), set its modulation

signal to be 1kHz, and the deviation to be ±3kHz (wideband),

±1.5kHz (narrowband). Set the filter of the general test set to be

in the bandpass status.

b) Press “

” key or “ ” key to select SQL OPEN/SQL

CLOSE in the radio. Then turn the volume knob of the radio to

make the output audio power indicated in the general test set to

be 500mW.

c) Turn the rotary encoder. When the value displayed keeps

stable, press “

” key to save. (Press key “1”, “2”, “3”, “4”,

“5” respectively to adjust the five frequency points of “Low”,

“Lower”, “Mid”, “Higher”, and “High”)

Note: Press the “Redial Button” to switch between

wideband and narrowband.

12

PT6800 Service Manual

3. RSSI: LOW RSSI/HIGH RSSI

a) Set the signal strength of the general test set to be -120dBm

(LOW RSSI)/-70dBm (HIGH RSSI), set the modulation signal

of the audio signal generator to be 1kHz, and the deviation to

be ±3kHz (wideband), ±1.5kHz (narrowband). Set the filter of

the general test set to be in the bandpass status.

b) Press “

turn the volume knob of the radio to make the output audio

power indicated in the general test set to be 500mW.

c) After the signal source transmit the signal, turn the rotary

encoder of the radio, and then press “

key “1”, “2”, “3”, “4”, “5” respectively to adjust the five

frequency points of “Low”, “Lower”, “Mid”, “Higher”, and

“High”)

Note: Press the “Redial Button” to switch between

wideband and narrowband.

Tx Part

Set the general test set and the radio, and make sure that the

test set is in its Tx interface, and the radio is in the Tuning

Mode.

1. Tx frequency: FREQUENCY

a) Press “

radio.

b) Turn the rotary encoder to make the Tx frequency to be

within ±100Hz.

2. Tx power: HIGH POWER/LOW POWER

a) Press “

POWER in the radio.

b) Turn the rotary encoder to make the Tx power to be

3.5~5.0W (HIGH POWER)/0.3~0.7W (LOW POWER). (Press

key “1”, “2”, “3”, “4”, “5” respectively to adjust the Tx power

of the five frequency points.)

3. Max. deviation: MAX DEV

a) Set the modulation signal of the general test set to be

1kHz/320mV. And set the filter to be in the low pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the max. deviation to be

1.8-2.5kHz (narrowband)/3.8-4.8kHz (wideband). (Press key

“1”, “2”, “3”, “4”, “5” respectively to adjust the max. deviation

of the five frequency points of “Low”, “Lower”, “Mid”,

“Higher”, and “High”)(Pre-emphasis is disabled, and no SVC is

displayed.)

Note: Press the “Redial Button” to switch between

wideband and narrowband.

” key or “ ” key to select RSSI in the radio. Then

” key to save. (Press

” key or “ ” key to select FREQUENCY in the

” key or “ ” key to select HIGH POWER/LOW

” key or “ ” key to select MAX DEV in the

4. DQT balance: DQT BALANCE

a) Set the filter to be in the low pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the waveform of DQT to be

flat square wave. (Press key “1”, “2”, “3”, “4”, “5” respectively

to adjust the DQT balance of the five frequency points of

“Low”, “Lower”, “Mid”, “Higher”, and “High”)

5. QT/DQT deviation: QT DEV/DQT DEV

a) Set the filter to be in the low pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the QT/DQT deviation to be

0.3-0.5kHz (narrowband)/0.5-0.85kHz (wideband). (Press key

“1”, “2”, “3”, “4”, “5” respectively to adjust the QT/DQT

deviation of the five frequency points of “Low”, “Lower”,

“Mid”, “Higher”, and “High”)

Note: Press the “Redial Button” to switch between

wideband and narrowband.

6. FFSK deviation: FFSK DEV

a) Set the filter to be in the band pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the FFSK deviation to be

1.5kHz (narrowband)/3.4kHz (wideband).

Note: Press the “Redial Button” to switch between

wideband and narrowband. Only the center frequency point

needs to be adjusted.

7. DTMF deviation: DTMF DEV

a) Set the filter to be in the band pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the DTMF deviation to be

1.5kHz (narrowband)/3.4kHz (wideband).

Note: Press the “Redial Button” to switch between

wideband and narrowband. Only the center frequency point

needs to be adjusted.

8. Tone deviation: TONE DEV

a) Set the filter to be in the band pass status.

b) Press “

radio.

c) Turn the rotary encoder to make the tone deviation to be

1.5kHz (narrowband)/3.4kHz (wideband).

Note: Press the “Redial Button” to switch between

wideband and narrowband. Only the center frequency point

needs to be adjusted.

13

” key or “ ” key to select DQT BALANCE in the

” key or “ ” key to select QT/DQT DEV in the

” key or “ ” key to select FFSK DEV in the

” key or “ ” key to select DTMF DEV in the

” key or “ ” key to select TONE DEV in the

PT6800 Service Manual

9. Battery detect: BATT

Set the voltage of the power supply to be 6.8V. Press “

key or “

value keeps stable, press “ ” key to save the data.

Note: After the above mentioned items are adjusted to the

target value, you need to press “

7.1.3 PC test mode

1. VCO

In the receiving status:

a) Set the Rx frequency to the high frequency point, and tune

C117 to make the voltage of T1 to be 3.6 ± 0.1V.

b) Set the Rx frequency to the low frequency point, and make

the voltage of T1 to be ＞0.6V.

In the transmitting status:

c) Set the Tx frequency to the high frequency point, and tune

C52 to make the voltage of T1 to be 3.6 ± 0.1V.

d) Set the Tx frequency to the low frequency point, and make

the voltage of T1 to be ＞0.6V.

Run the PT 6800 programming software. Click

“Program” in the main menu, and click “Test Mode” in

the pull-down menu. Then the PC tuning interface will pop up.

The adjusting items will be listed on the left of the interface.

Double click the item you want to adjust, and then the

following parameters can be tuned.

2. Tx part

1) Tx frequency

Tune the value of “Frequency Stability” to adjust the Tx

frequency to be within nominal frequency ± 100Hz.

2) Power

a) Tune the value of “High Power” (five frequency points) to

make the Tx high power to be 3.5-5.0W.

b) Tune the value of “Low Power” (five frequency points) to

make the Tx low power to be 0.3-0.7W.

3) Max. deviation (the modulation signal is set to

1kHz/320mV)

Tune the value of “Max. Deviation” (five frequency points

for wideband and one frequency point for narrowband) to make

the Tx max. deviation to be 3.8-4.8kHz (W)/1.8-2.5kHz (N).

4) DTMF deviation

Tune the value of “DTMF Deviation” (one frequency point

for wideband and one frequency point for narrowband) to make

the DTMF deviation to be 3-4.0kHz (W)/1.5-2kHz (N).

5) DQT balance

Tune the value of “DQT Balance” (five frequency points for

” key to select BATTERY in the radio, when the

” key to save the data.

”

wideband and one frequency point for narrowband) to make the

waveform of the demodulated DQT to be flat square wave.

6) DQT deviation (DQT: 023N)

Tune the value of “DQT Deviation” (five frequency points

for wideband and one frequency point for narrowband) to make

the DQT deviation to be:

W: 0.5-0.85kHz (Note: Adjust the DQT to be 0.9kHz when

using HP8920/8921)

N: 0.3-0.5kHz (Note: Adjust the DQT to be 0.4kHz when

using HP8920/8921)

7) QT deviation (QT: 67.0Hz, 136.5Hz, 250.4Hz)

Tune the value of “QT Deviation (67Hz, 136.5Hz,

250.4Hz)” to make the QT deviation to be 0.5-0.85kHz

(W)/0.3-0.5kHz (N).

8) Tx battery low voltage

Set the voltage of the power supply to be 6.8V, double click

“Battery” in the test mode. When the value keeps stable, click

“OK” to save.

3. Rx part

1) Rx passband

a) Set the spectrum analyzer, and use high frequency probe to

test the Rx passband of T2.

b) Tune the value of “Sensitivity” (five frequency points) to

make the Rx passband to be the corresponding center

frequency.

2) Max. volume

Set the RF frequency of the general test set to be the center

frequency, the signal strength to be 1mV, the modulation

deviation to be 3.0kHz/1.5kHz (wideband/narrowband). Tune

the value of “Max. Volume” (wideband/narrowband) to make

the audio power to be 1.5-1.8W.

3) Squelch

a) Set the RF signal of the general test set to be -121dBm, the

modulation deviation to be 3.0kHz/1.5kHz

(wideband/narrowband). Double click “SQL Open (wide,

narrow)” (five frequency points) in the PC test mode. When the

value keeps stable, click “OK” to save.

b) Set the RF signal of the general test set to be -123dBm, the

modulation deviation to be 3.0kHz/1.5kHz

(wideband/narrowband). Double click “SQL Close (wide,

narrow)” (five frequency points) in the PC test mode. When the

value keeps stable, click “OK” to save.

4) Field strength

a) Set the RF signal of the general test set to be -120dBm, the

modulation deviation to be 3.0kHz/1.5kHz

(wideband/narrowband). Double click “RSSI Low (wide,

14

PT6800 Service Manual

narrow)” (five frequency points) in the PC test mode. When the

value keeps stable, click “OK” to save.

b) Set the RF signal of the general test set to be -70dBm, the

modulation deviation to be 3.0kHz/1.5kHz

(wideband/narrowband). Double click “RSSI High (wide,

narrow)” (five frequency points) in the PC test mode. When the

value keeps stable, click “OK” to save.

7.2 Panel Test Mode

Press and hold “

to enter the Panel Test Mode.

The radio will display Rxxx.xxx or Txxx.xxxx

R indicates the receiving frequency, T indicates the

transmitting frequency.

The operations and corresponding displays under the panel

test mode are as follows:

Key

PTT

Clear

Redial

Rotary Encoder

Press to transmit,
release to receive

Enable/Disable
monitor

Switch between
wideband and
narrowband

Enable/Disable

8

compander

Enable/Disable beat

9

shift

Switch between high
power and low power

Select the signaling 67, 100, 151.4, 210.7,

Select the channel Channel frequency

Note:

1) The following tests are performed under the voltage of 7.5V

± 0.1V in room temperature.

2) Frequency range

PT6800(4): 400MHz – 470MHz

PT6800(2): 350MHz – 390MHz

3) When testing the following parameters, pre-emphasis

function should be enabled (“SVC” icon is displayed in LCD).

Refer to the following tables for channel frequencies.

a) 400 – 470 MHz

Channel NO. Rx Tx

1 400.15000 400.15000

2 435.15000 435.15000

3 469.975000 469.975000

4 417.15000 417.15000

5 452.15000 452.15000

6

7

” key while turning the radio power ON

Corresponding

function

Display

Receiving: R
Transmitting: T

Enabled: MON

Wideband: W
Narrowband: N

Enabled:

Enabled:

Low: LO

250.3, DQT023N,
DQT754I, DTMF9,
FFSK 1200, FFSK 1800

8

9

10

350 -390MHz:

Channel NO. Rx Tx

1 350.15000 350.15000

2 370.15000 370.15000

3 389.97500 389.97500

4 360.15000 360.15000

5 380.15000 380.15000

6

7

8

9

10

Note: The above frequencies can be edited by PC programming

software.

Operating method:

a) Run the PC programming software.

b) Click “Edit” in the main menu, and click “Test Frequency”

in the pull-down menu, or click “Test Frequency” in the tree

menu (or click the shortcut key “

”).

c) The test frequency table will pop up, and you can edit the

frequencies.

The following parameters need to be tested under the panel

test mode:

1. Rx part

1) Sensitivity:  -116dBm (0.35V) (wideband, narrowband)

12dB SINAD

2) Distortion: 10%

3) Current: Static current 100mA

Rx operating current 500mA

4) QT/DQT decoding: Correct decoding for signal strength

-116dBm (0.35V) (wideband, narrowband)

5) Squelch close sensitivity: Squelch should be closed when RF

input  -124dBm.

6) Squelch open sensitivity: Squelch should be opened when

RF input  -119dBm.

2. Tx part

1) Output power: High (3.5W – 5W), Low (0.3W – 0.7W)

2) Tx current: High power transmission  0.8A, Low power

transmission  1.0A

3) Max. deviation: 3.8kHz – 4.8kHz (wideband)/1.8kHz –

2.5kHz (narrowband)

4) Tx distortion:  5%

5) QT/DQT deviation: 0.5 – 0.85kHz (wideband), 0.3 – 0.5kHz

(narrowband), and with good waveform.

15

PT6800 Service Manual

6) Tx deviation: nominal frequency ± 500Hz

7) DTMF deviation: 3 – 4kHz (wideband)/1.5 – 2.0kHz

(narrowband)

8) FFSK deviation: 3 – 4kHz (wideband)/1.5 – 2.0kHz

(narrowband)

9) Battery low voltage indication: When the voltage is 6.6V, the

LED blinks red while pressing PTT button, and the radio has no

Tx power.

Chapter 8 Specifications

8.1 General Specifications

Product Model PT6800

Frequency

Type of Modulation 16KF3E/11KF3E

Number of Control Channel 6*64

Channel Spacing 25kHz/12.5kHz

Intermediate Frequency 1st IF: 51.65MHz, 2nd IF: 450kHz

Operating Voltage 7.5V, cathode grounded

Operating Temperature -25℃~ +55℃

Antenna Impedance 50

MIC Impedance 2.2k 

Battery (Standard

Configuration)

Dimension (W×H×D) 56mm × 120mm × 35mm

Weight 413g (with battery and antenna)

8.2 Rx Part

Usable Sensitivity (12dB

SINAD)

Squelch ON Sensitivity 0.185V

Rx Residual Output -40dB/-35dB

Rx Modulation Bandwidth ±7kHz/±3.5kHz

Adjacent Channel

Selectivity

Intermodulation Rejection 60dB

Spurious Response

Rejection

Audio Output Power 1.5W, balanced @ distortion  10%,

Rx Current Consumption 400mA

8.3 Tx Part

Tx Power 4.0W/0.5W @ 7.5V DC

Frequency Stability ±2.5ppm

Max. Modulation Deviation ±5kHz/±2.5kHz

Modulation Distortion (300 3%

(136 ~ 174) MHz (400 ~ 470) MHz

(470~ 520) MHz (350 ~ 390) MHz

Model: KB-36C, Li-ion Battery: DC

7.4V, 1750mAh, using time: 8h (cycle:

5: 5: 90)

0.25V

70dB/60dB

70dB

16

~ 3000Hz)

Adjacent Channel Tx Power 70dB/60dB

Spurious Emission 70dB

Residual FM 45dB

Tx Current Consumption 1.7A @ 7.5V DC

Chapter 9 Servicing and Testing Equipment

Equipment and apparatus listed below are required for

servicing and test of PT6800.

No. Name Major Specifications

Standard signal

1

generator

Power meter Input impedance: 50 

2

3 Deviation meter Frequency range: 350 ~ 390MHz

Digital voltmeter Measuring range: DC 10mV ~ 10V

4

5 Oscilloscope DC ~ 30MHz

High sensitivity

6

frequency counter

7 Ammeter 5A

Audio frequency

8

voltmeter

Audio frequency

9

generator

Distortion tester Capacity: 3% or lower @ 1kHz

10

11 Spectrum analyzer Measuring range: DC ~ 1GHz or higher

Path generator Center frequency: 50kHz ~ 600MHz

12

13 16  dummy load Around 16 , 3W

Adjustable power

14

supply

Frequency range: 350 ~ 390MHz

Modulation: FM and external modulation

Output: -127dBm/0.1V ~ > -47dBm/1mV

Operating frequency: 350 ~ 390MHz

Measuring range: around 10W

Input impedance: High input impedance of

min. circuit load

Frequency range: 50Hz ~ 10kHz

Frequency stability: 0.2ppm or lower

Frequency range: 50Hz ~ 10kHz

Voltage range: 1mV ~ 10V

Frequency range: 50Hz ~ 5kHz or higher

Output: 0 ~ 1V

Input level: 50mV ~ 10vms

Output voltage: 100mV or higher

5V ~ 10V, around 5A

Chapter 10 Troubleshooting

No. Problem Causes and Solutions

16

Power ON

failure

1

PLL unlocked

(Beeping)

2

A. The battery pack may be out of power. Please charge

it or change a new one.

B. Power switch in failure; please change it.

C. CPU is broken, please change the IC.

D. Zener diode Q45 is broken; please change the IC.

A. The PLL crystal oscillator X1 is broken. Please

change it.

B. The oscillator transistor is broken. Please change it.

C. The PLL IC2 is broken. Please change it.

PT6800 Service Manual

b

p

Cannot talk to

or hear other

radios

3

No signal A. The antenna is in poor contact. Please fasten it.

4

The indicator

lights red while

transmitting,

5

ut no voice is

heard by the

recipient.

The indicator

lights green

while

6

receiving, but

no sound is

heard.

The

rogramming is

abnormal

7

A. The frequency of the radio’s current channel is not

the same with that of the other radio. Please reselect a

channel.

B. The CTCSS/DCS is not the same. Please reset it.

C. The radio is out of the effective communication

range.

B. The sensitivity is too low. Please adjust it under “PC

Test Mode”.

C. The HF amplifying tube Q18 is broken. Please

change it.

D. The squelch level is too high, so the squelch cannot

be opened. Please adjust the squelch level.

E. The mixing tube Q19 is broken. Please change it.

F. The FM processing chip IC4 is broken. Please

change it.

A. The power amplifying tube is broken, so there is no

power output. Please change it.

B. The MIC is broken. Please change it.

C. The operational amplifier IC14 is broken. Please

change it.

A. The speaker is broken. Please change it.

B. The audio power amplifier IC9 is broken. Please

change it.

C. The switch diode Q48 is broken. Please change it.

D. The operational amplifier IC6 is broken. Please

change it.

A. The programming cable connection is wrong. Please

check the cable connection.

B. The Computer’s RS-232 serial port output is

abnormal. Please check the computer.

C. The universal connector of the radio is in poor

contact. Please check the universal connector. If it is

abnormal, please change it.

Appendix 1 Abbreviations

AMP: Amplify, amplifier

ANT: Antenna

APC: Automatic Power Control

BPF: Band Pass Filter

CTCSS: Continuous Tone Control Squelch System

DCS: Digital Code Squelch

DEMOD: Demodulation

2

E

PROM: Electrical Erasable Programmable Read Only

Memory

HPF: High Pass Filter

IDC: Instantaneous Deviation Control

IF: Intermediate Frequency

LED: Light-Emitting Diode

LNA: Low Noise Amplifier

LPF: Low Pass Filter

MCU: Micro Control Unit

MIC: Microphone

MOD: Modulation

MONI: Monitor

PLL: Phase Lock Loop

PTT: Push-to-talk

RX: Receiver

SPK: Speaker

TCXO: Temperature Controlled Crystal Oscillators

TX: Transmitter

UL: Un-lock

VCO: Voltage Control Oscillator

Appendix 2 Electronic Parts List

Key Board

No. Part No. Description Qty. Position Mark

1 101-06500K-R03 PT6500PCB / PT6500KEY-070928.PCB, RoHS 1

2 103-Y2CANQ-R01 Surface Mounted LED / 0603, Orange, 19-213/Y2C-ANQB/3T, RoHS 6 D2, D3, D4, D5, D6, D7

3 104-C144EE-R01 Surface Mounted Triode / DTC144EE(ROHM), RoHS 1 Q2

4 104-T591TA-R01 Surface Mounted Triode / FMMT591TA, SOT-23, PNP( ZETEX), RoHS 1 Q1

5 105-SK1824-R01 Surface Mounted FET / 2SK1824, RoHS 1 Q3

6 109-040000-R01 Surface Mounted Resistor / 0402, 0R±5%, RoHS 3 R4, R28, R29

7 109-040101-R01 Surface Mounted Resistor / 0402, 100R±5%, RoHS 3 R17, R18, R19

8 109-040102-R01 Surface Mounted Resistor / 0402,1K±5%, RoHS 8 R9, R10, R11, R12, R13, R14, R15, R16

9 109-040104-R01 Surface Mounted Resistor / 0402,100K±5%, RoHS 1 R21

10 109-040182-R01 Surface Mounted Resistor / 0402, 1.8K±5%, RoHS 2 R22, R26

11 109-040272-R01 Surface Mounted Resistor / 0402, 2.7K±5%, RoHS 6 R1, R2, R3, R5, R6, R7

12 109-040363-R01 Surface Mounted Resistor / 0402, 36K±5%, RoHS 1 R31

17

PT6800 Service Manual

13 109-040471-R01 Surface Mounted Resistor / 0402, 470R±5%, RoHS 2 R20, R25

14 109-060000-R01 Surface Mounted Resistor / 0603, 0R±5%, RoHS 1 R24

15 112-042214-R01 Surface Mounted Network Capacitor / 220P*4, 0402, RoHS 3 C6, C7, C11

16 112-043102-R01 Surface Mounted Capacitor / 0402,1000P±10%,50V,X7R,RoHS 6 C12, C14, C18, C19, C21, C22

17 112-043103-R01 Surface Mounted Capacitor / 0402, 0.01uF±10%, 50V, X7R, RoHS 2 C13, C15

18 112-043104-R02 Surface Mounted Capacitor / 0402, 0.1uF±10%, 10V, X5R, RoHS 3 C17, C41, C42

19 112-043105-R01 Surface Mounted Capacitor / 0402,1uF±10%,6.3V,X5R,RoHS 1 C20

20 112-043221-R01 Surface Mounted Capacitor / 0402,220P±5%,50V,C0G,RoHS 12

21 112-043471-R01 Surface Mounted Capacitor / 0402,470P±10%,50V,X7R,RoHS 2 C38, C39

22 112-072475-R01 Surface Mounted Tantalum Capacitor / TP type, SIZE P, 4.7uF±20%, 10V, RoHS 2 C16, C40

23 117-000000-R04 Surface Mounted Bead / EMI,FILTER, SMT,BLM11A221S,0603,RoHS 5 L1, L2, L3, L4, L5

24 121-200000-R01 MIC / B6027AP402-88 (Old type: B6027AP402-65), RoHS 1 MIC1

25 124-020000-R03 Surface Mounted Connector / BL112-10RL,10PIN,RoHS 1 CN2

26 124-020000-R04 Surface Mounted Connector / BL112-14RL,14PIN,RoHS 1 CN1

27 124-020000-R15 Surface Mounted Connector / BL112-38RU,38PIN，RoHS 1 CN3

28 201-003208-R29 PT3208PVC MIC Gasket / transparent PVC, 0.5MM thickness, RoHS 1

RF Board

No. Part No. Description Qty. Position Mark

1 101-06500U-R04 PT6500PCB / PT6500U-070928.PCB, RoHS 1

2 102-24C256-R02 Memory IC / 24LC256I/SN, RoHS 1 IC8

3 102-9140NR-R01 Reset IC / PST9140NR,RoHS 1 IC11

4 102-A31136-R01 Modulator IC / TA31136FN,SSOP,RoHS 1 IC4

5 102-AK2346-R01 IC / AK2346，RoHS 1 IC6

6 102-B502MR-R01 Memory IC / XC6204B502MR，RoHS 2 Q40, Q45

7 102-C75W51-R01 Operational Amplifier / TC75W51FU, SSOP8-P-0.65, RoHS 2 IC1, IC14

8 102-DA8541-R01 Audio Amplifier / TDA8541,SO8,RoHS 1 IC9

9 102-DF4111-R01 PLL IC / ADF4111,TSSOP，RoHS 1 IC2

10 102-DS2431-001 Memory IC / DS2431P, TSOC 1 IC17

11 102-FP3502-R01 Regulator IC / XC62FP3502PR,SOT-89,RoHS 1 IC16

12 102-M2902V-R01 Operational Amplifier / NJM2902V, OP-AMP, RoHS 1 IC5

13 102-M2904V-R01 Operational Amplifier / NJM2904V, OP-AMP, RoHS 1 IC3

14 102-W25X40-R01 Memory IC / W25X40VSNIG,RoHS 1 IC15

15 103-0MA742-R01 Surface Mounted Switch Diode / MA742(PANASONIC), RoHS 4 D22, D35, D36, D37

16 103-1SR154-R01 Surface Mounted Rectifier Diode / 1SR154-400(ROHM), RoHS 1 D33

17 103-1SV278-R01 Surface Mounted Varactor diode / 1SV278, RoHS 1 D9

18 103-A2S111-R01 Surface Mounted Switch Diode / 0603, MA2S111(PANASONIC), RoHS 4 D10, D16, D20, D38

19 103-DAN222-R01 Surface Mounted Switch Diode / DAN222, (ROHM), RoHS 2 D18, D19

20 103-HSC277-R01 Surface Mounted Diode / Wave Band Switch, HSC277(HITACHI), RoHS 3 D3, D7, D17

21 103-HVC131-R01 Surface Mounted PIN Diode / 0603, HVC131(HITACHI), RoHS 2 D1, D39

22 103-HVC355-R02 Surface Mounted Varactor diode / 0603, HVC355B(HITACHI), RoHS 7 D21, D23, D27, D28, D29, D30, D40

23 103-HVC376-R01 Surface Mounted Varactor diode / HVC376B,RoHS 8 D2, D4, D5, D6, D11, D12, D13, D14

24 103-HZU5AL-R01 Surface Mounted Zener Diode / HZU5ALL(HITACHI), RoHS 1 D15

25 103-L190YG-R01 Surface Mounted LED / 0603, Green, H19-213SYGC, RoHS 2 D26, D31

26 103-MHC190-R02 Surface Mounted LED / 0603, Red, 19-21SURC/S530-A2/TR8, RoHS 1 D25

27 104-A123JE-R01 Surface Mounted Triode / DTA123JE(ROHM), RoHS 2 Q26, Q44

28 104-A143TE-R01 Surface Mounted Triode / DTA143TE,RoHS 2 Q7, Q9

29 104-A144EE-R01 Surface Mounted Triode / DTA144EE(ROHM), RoHS 4 Q12, Q25, Q36, Q50

30 104-C144EE-R01 Surface Mounted Triode / DTC144EE(ROHM), RoHS 8 Q13, Q16, Q22, Q23, Q24, Q32, Q35, Q52

31 104-C144EU-R01 Surface Mounted Triode / DTC144EUA(ROHM), RoHS 1 Q10

32 104-SA1586-R01 Surface Mounted Triode / 2SA1586,RoHS 1 Q47

33 104-SC3356-R01 Surface Mounted Triode / 2SC3356,R24,RoHS 1 Q5

34 104-SC4116-R01 Surface Mounted Triode / 2SC4116-GR, RoHS 1 Q41

35 104-SC4617-R01 Surface Mounted Triode / 2SC4617(S)(ROHM), RoHS 5 Q14, Q21, Q30, Q31, Q53

36 104-SC5108-R01 Surface Mounted Triode / 2SC5108Y(TOSHIBA), RoHS 6 Q2, Q4, Q8, Q15, Q20, Q49

C1, C2, C8, C9, C23, C24, C25, C26,

C27, C28, C36, C37

18

PT6800 Service Manual

37 105-2SK508-R01 Surface Mounted FET / 2SK508NV(K52),RoHS 2 Q6, Q11

38 105-3SK318-R01 Surface Mounted FET / 3SK318,RoHS 2 Q18, Q19

39 105-RD01MU-R01 Surface Mounted FET / RD01MUS2,RoHS 1 Q3

40 105-RD07MV-R01 Surface Mounted FET / RD07MVS1,RoHS 1 Q1

41 105-SK1824-R01 Surface Mounted FET / 2SK1824,RoHS 6 Q29, Q33, Q34, Q46, Q51, Q54

42 105-SK1829-R01 Surface Mounted FET / 2SK1829,RoHS 1 Q17

43 105-ST2301-R01 Surface Mounted FET / ST2301,RoHS 2 Q39, Q43

44 105-ST2302-R01 Surface Mounted FET / ST2302,RoHS 1 Q48

45 106-LBE010-R01 Surface Mounted Touch Switch / SKRTLBE010, RoHS 1 SW3

46 106-RY6472-R01 Encode Switch / RY-6472, RoHS 1 SW2

47 108-450C24-R02 Surface Mounted Discriminator / JTBM450CX24, RoHS 1 CD1

48 108-CF450F-R02 Surface Mounted Ceramic Filter / LTWC450F, 450kHz±7kHz, RoHS 1 CF2

49 108-CF450H-R02 Surface Mounted Ceramic Filter / LTWC450H, 450kHz±3kHz, RoHS 1 CF1

50 108-XF5165-R01

51 109-040000-R01 Surface Mounted Resistor / 0402,0R±5%,RoHS 20

52 109-040100-R01 Surface Mounted Resistor / 0402,10R±5%,RoHS 5 R2, R47, R49, R69, R77

53 109-040101-R01 Surface Mounted Resistor / 0402, 100R±5%, RoHS 3 R20, R22, R108

54 109-040102-R01 Surface Mounted Resistor / 0402,1K±5%,RoHS 52

55 109-040103-R01 Surface Mounted Resistor / 0402,10K±5%,RoHS 11

56 109-040104-R01 Surface Mounted Resistor / 0402, 100K±5%, RoHS 5 R186, R213, R279, R300, R304

57 109-040105-R01 Surface Mounted Resistor / 0402,1M±5%,RoHS 13

58 109-040123-R01 Surface Mounted Resistor / 0402,12K±5%,RoHS 4 R140, R191, R209, R231

59 109-040124-R01 Surface Mounted Resistor / 0402, 120K±5%, RoHS 2 R193, R204

60 109-040151-R01 Surface Mounted Resistor / 0402, 150R±5%, RoHS 1 R100

61 109-040152-R01 Surface Mounted Resistor / 0402, 1.5K±5%, RoHS 3 R13, R28, R180

62 109-040153-R01 Surface Mounted Resistor / 0402,15K±5%,RoHS 5 R50, R80, R141, R233, R281

63 109-040154-R01 Surface Mounted Resistor / 0402, 150K±5%, RoHS 8 R6, R25, R42, R121, R157, R159, R179, R182

64 109-040181-R01 Surface Mounted Resistor / 0402, 180R±5%, RoHS 1 R52

65 109-040183-R01 Surface Mounted Resistor / 0402,18K±5%,RoHS 3 R184, R185, R278

66 109-040184-R01 Surface Mounted Resistor / 0402, 180K±1%, RoHS 4 R174, R194, R196, R210

67 109-040202-R01 Surface Mounted Resistor / 0402,2K±5%,RoHS 1 R257

68 109-040204-R01 Surface Mounted Resistor / 0402, 200K±5%, RoHS 1 R61

69 109-040220-R01 Surface Mounted Resistor / 0402,22R±5%,RoHS 4 R31, R36, R92, R230

70 109-040222-R01 Surface Mounted Resistor / 0402, 2.2K±5%, RoHS 2 R135, R189

71 109-040223-R01 Surface Mounted Resistor / 0402,22K±5%,RoHS 9

72 109-040224-R01 Surface Mounted Resistor / 0402, 220K±5%, RoHS 2 R161, R203

73 109-040271-R01 Surface Mounted Resistor / 0402, 270R±5%, RoHS 2 C164, R19

74 109-040272-R01 Surface Mounted Resistor / 0402, 2.7K±5%, RoHS 8 R24, R45, R46, R133, R181, R212, R254, R295

75 109-040273-R01 Surface Mounted Resistor / 0402,27K±5%,RoHS 7 R101, R125, R147, R153, R195, R275, R280

76 109-040274-R01 Surface Mounted Resistor / 0402, 270K±5%, RoHS 3 R34, R38, R146

77 109-040331-R01 Surface Mounted Resistor / 0402, 330R±5%, RoHS 3 R14, R107, R119

78 109-040332-R01 Surface Mounted Resistor / 0402, 3.3K±5%, RoHS 4 R112, R123, R128, R177

79 109-040333-R01 Surface Mounted Resistor / 0402,33K±5%,RoHS 4 R171, R215, R248, R311

80 109-040334-R01 Surface Mounted Resistor / 0402, 330K±5%, RoHS 2 R97, R232

81 109-040363-R01 Surface Mounted Resistor / 0402,36K±5%,RoHS 1 R87

82 109-040393-R01 Surface Mounted Resistor / 0402,39K±5%,RoHS 1 R35

Surface Mounted Crystal Filter / DSF753SBF, 51.65MHz±4kHz/3dB,

(7.0x5.0x1.3)mm, RoHS

1 XF1

C135, C136, C255, C330, R54, R94, R152,

R175, R178, R187, R227, R240, R258, R262,

R264, R269, R291, R298, R307, R308

R11, R12, R40, R51, R68, R76, R118, R129,

R130, R131, R148, R154, R160, R162, R163,

R164, R165, R167, R192, R198, R202, R205,

R208, R217, R221, R225, R226, R238, R245,

R251, R253, R277, R297, R299, R301, R310,

R316, R3

R21, R59, R126, R144, R172, R199, R211,

R252, R284, R287, R288

R8, R60, R109, R113, R114, R115, R116, R120,

R127, R234, R237, R261, R270

R79, R82, R83, R86, R102, R103, R139, R166,

R244

19

PT6800 Service Manual

83 109-040433-R01 Surface Mounted Resistor / 0402,43K±5%,RoHS 1 R142

R4, R16, R37, R48, R62, R73, R74, R75, R89,

84 109-040472-R01 Surface Mounted Resistor / 0402, 4.7K±5%, RoHS 17

85 109-040473-R01 Surface Mounted Resistor / 0402,47K±5%,RoHS 12

86 109-040474-R01 Surface Mounted Resistor / 0402, 470K±5%, RoHS 7 R29, R85, R156, R265, R271, R342, R343

87 109-040513-R01 Surface Mounted Resistor / 0402,51K±5%,RoHS 1 R151

88 109-040560-R01 Surface Mounted Resistor / 0402,56R±5%,RoHS 1 R117

89 109-040561-R01 Surface Mounted Resistor / 0402, 560R±5%, RoHS 3 R41, R43, R44

90 109-040562-R01 Surface Mounted Resistor / 0402, 5.6K±5%, RoHS 3 R10, R176, R303

91 109-040563-R01 Surface Mounted Resistor / 0402,56K±5%,RoHS 2 R71, R220

92 109-040564-R01 Surface Mounted Resistor / 0402, 560K±5%, RoHS 3 R88, R218, R219

93 109-040682-R01 Surface Mounted Resistor / 0402, 6.8K±5%, RoHS 2 R98, R99

94 109-040683-R01 Surface Mounted Resistor / 0402,68K±5%,RoHS 2 R246, R313

95 109-040753-R01 Surface Mounted Resistor / 0402,75K±5%,RoHS 1 R283

96 109-040823-R01 Surface Mounted Resistor / 0402,82K±5%,RoHS 2 R15, R169

97 109-040824-R01 Surface Mounted Resistor / 0402, 820K±5%, RoHS 1 R285

98 109-060000-R01 Surface Mounted Resistor / 0603,0R±5%,RoHS 11

99 109-060100-R01 Surface Mounted Resistor / 0603,10R±5%,RoHS 1 L61

100 109-060101-R01 Surface Mounted Resistor / 0603, 100R±5%, RoHS 1 R39

101 109-060102-R01 Surface Mounted Resistor / 0603,1K±5%,RoHS 1 R18

102 109-060104-R01 Surface Mounted Resistor / 0603, 100K±5%, RoHS 4 R78, R105, R110, R250

103 109-060150-R01 Surface Mounted Resistor / 0603,15R±5%,RoHS 1 R5

104 109-060151-R01 Surface Mounted Resistor / 0603, 150R±5%, RoHS 1 R9

105 109-060154-R02 Surface Mounted Resistor / 0603, 150K±1%, RoHS 6 R53, R55, R58, R63, R67, R72

106 109-060184-R01 Surface Mounted Resistor / 0603, 180K±5%, RoHS 1 R124

107 109-060220-R01 Surface Mounted Resistor / 0603,22R±5%,RoHS 1 R27

108 109-060221-R01 Surface Mounted Resistor / 0603, 220R±5%, RoHS 1 R104

109 109-060222-R01 Surface Mounted Resistor / 0603, 2.2K±5%, RoHS 1 R1

110 109-060271-R01 Surface Mounted Resistor / 0603, 270R±5%, RoHS 3 C165, R17, R23

111 109-060273-R01 Surface Mounted Resistor / 0603,27K±5%,RoHS 1 R70

112 109-060274-R01 Surface Mounted Resistor / 0603,270K±5%,RoHS 1 R122

113 109-060330-R01 Surface Mounted Resistor / 0603,33R±5%,RoHS 1 R33

114 109-060472-R01 Surface Mounted Resistor / 0603, 4.7K±5%, RoHS 1 R138

115 109-060560-R01 Surface Mounted Resistor / 0603,56R±5%,RoHS 1 L59

116 109-060563-R01 Surface Mounted Resistor / 0603,56K±5%,RoHS 2 R84, R111

117 109-060683-R01 Surface Mounted Resistor / 0603,68K±5%,RoHS 1 R106

118 109-070000-R01 Surface Mounted Resistor / 0805,0R±5%,RoHS 2 L22, L54

119 109-100R47-R01 Surface Mounted Resistor / 1206, 0.47R±5%, RoHS 3 R57, R65, R66

120 110-220103-R01 Volume Control Switch / 10K,RY-6473,RoHS 1 SW1

121 111-030000-R01

122 112-043100-R01 Surface Mounted Capacitor / 0402, 10P±0.5P, 50V, C0G, RoHS 6 C11, C59, C70, C108, C142, C143

123 112-043101-R01 Surface Mounted Capacitor / 0402, 100P±5%, 50V, C0G, RoHS 6 C84, C104, C105, C106, C121, C296

124 112-043102-R01 Surface Mounted Capacitor / 0402, 1000P±10%, 50V, X7R, RoHS 9

125 112-043103-R01 Surface Mounted Capacitor / 0402, 0.01uF±10%, 50V, X7R, RoHS 18

126 112-043104-002 Surface Mounted Capacitor / 0402, 0.1uF±10%, 10V, X5R, Stop using 1 C167

127 112-043104-R02 Surface Mounted Capacitor / 0402, 0.1uF±10%, 10V, X5R, RoHS 24

128 112-043105-R01 Surface Mounted Capacitor / 0402, 1uF±10%, 6.3V, X5R, RoHS 18 C45, C87, C217, C218, C237, C263, C271,

Surface Mounted Self Resume Fuse / 433003, 3A/32V, 1206(former 429003),

RoHS

R134, R136, R137, R145, R173, R197, R207,

R216

R7, R30, R32, R183, R206, R214, R228, R242,

R274, R276, R286, R292

C139, L16, L52, L56, L77, R95, R170, R201,

R222, R282, R305

1 F1

C179, C180, C192, C198, C204, C211, C212,

C283, C363

C44, C54, C91, C95, C115, C134, C152, C181,

C196, C207, C232, C234, C256, C268, C275,

C352, C362, R90

C33, C83, C99, C114, C151, C166, C177, C178,

C199, C209, C216, C231, C233, C251, C257,

C274, C280, C293, C303, C319, C328, C331,

C351, C359

20

PT6800 Service Manual

C289, C299, C304, C315, C339, C353, C354,

C371, C372, C380, C381

129 112-043123-R01 Surface Mounted Capacitor / 0402, 0.012uF±10%, 50V, X7R, RoHS 1 C249

130 112-043150-R01 Surface Mounted Capacitor / 0402, 15P±5%, 50V, C0G, RoHS 1 C22

131 112-043151-R01 Surface Mounted Capacitor / 0402, 150P±5%, 50V, C0G, RoHS 1 C264

132 112-043153-R01 Surface Mounted Capacitor / 0402, 0.015uF±10%, 50V, X7R, RoHS 1 C159

133 112-043180-R01 Surface Mounted Capacitor / 0402, 18P±5%, 50V, C0G, RoHS 2 C38, C176

134 112-043182-R01 Surface Mounted Capacitor / 0402, 1800P±10%, 50V, X7R, RoHS 2 C201, C267

135 112-043183-R01 Surface Mounted Capacitor / 0402, 0.018uF±10%, 25V, X7R, RoHS 1 C158

136 112-0431R0-R01 Surface Mounted Capacitor / 0402, 1P±0.25P, 50V, C0G, RoHS 3 C68, C69, C88

137 112-0431R5-R01 Surface Mounted Capacitor / 0402, 1.5P±0.25P, 50V, C0G, RoHS 2 C169, C170

138 112-043200-R01 Surface Mounted Capacitor / 0402, 20P±5%, 50V, C0G, RoHS 1 C250

139 112-043220-R01 Surface Mounted Capacitor / 0402, 22P±5%, 50V, C0G, RoHS 4 C101, C242, C297, C298

140 112-043221-R01 Surface Mounted Capacitor / 0402, 220P±5%, 50V, C0G, RoHS 12

141 112-043222-R01 Surface Mounted Capacitor / 0402, 2200P±10%, 50V, X7R, RoHS 2 C241, C246

142 112-043223-R01 Surface Mounted Capacitor / 0402, 0.022uF±10%, 50V, X7R, RoHS 6 C140, C161, C214, C226, C325, C220

143 112-043224-R02 Surface Mounted Capacitor / 0402, 0.22uF±10%, 16V, X7R, RoHS 1 C313

144 112-043270-R01 Surface Mounted Capacitor / 0402, 27P±5%, 50V, C0G, RoHS 5 C190, C194, C260, C342, C347

145 112-0432R5-R01 Surface Mounted Capacitor / 0402, 2.4P/2.5P±0.1P, 50V, C0G, RoHS 1 C195

146 112-043330-R01 Surface Mounted Capacitor / 0402, 33P±5%, 50V, C0G, RoHS 4 C10, C129, C154, C258

147 112-043331-R01 Surface Mounted Capacitor / 0402, 330P±10%, 50V, X7R, RoHS 1 C144

148 112-043332-R01 Surface Mounted Capacitor / 0402, 3300P±10%, 50V, X7R, RoHS 1 C286

149 112-043333-R01 Surface Mounted Capacitor / 0402, 0.033uF±10%, 16V, X7R, RoHS 4 C157, C219, C240, C265

150 112-043393-R01 Surface Mounted Capacitor / 0402, 0.039uF±10%, 50V, X7R, RoHS 3 C239, C243, C277

151 112-0433R0-R01 Surface Mounted Capacitor / 0402, 3P±0.25P, 50V, C0G, RoHS 2 C48, C334

152 112-043470-R01 Surface Mounted Capacitor / 0402, 47P±5%, 50V, C0G, RoHS 3 C128, C252, C309

153 112-043471-R01 Surface Mounted Capacitor / 0402, 470P±10%, 50V, X7R, RoHS 86

154 112-043473-R01 Surface Mounted Capacitor / 0402, 0.047uF±10%, 16V, X7R, RoHS 1 C238

155 112-0434R0-R01 Surface Mounted Capacitor / 0402, 4P±0.25P, 50V, C0G, RoHS 1 C123

156 112-043561-R01 Surface Mounted Capacitor / 0402, 560P±10%, 16V, X7R, RoHS 1 C245

157 112-0435R0-R01 Surface Mounted Capacitor / 0402, 5P±0.25P, 50V, C0G, RoHS 3 C74, C75, C254

158 112-043682-R01 Surface Mounted Capacitor / 0402, 6800P±10%, 16V, X7R, RoHS 1 C287

159 112-043683-R01 Surface Mounted Capacitor / 0402, 0.068uF±10%, 16V, X7R, RoHS 1 C269

160 112-043820-R01 Surface Mounted Capacitor / 0402, 82P±5%, 50V, C0G, RoHS 1 C215

161 112-0438R0-R01 Surface Mounted Capacitor / 0402, 8P±0.5P, 50V, C0G, RoHS 3 C103, C124, C186

162 112-063100-R01 Surface Mounted Capacitor / 0603, 10P±5%, 50V, C0G, RoHS 1 C19

163 112-063101-R01 Surface Mounted Capacitor / 0603, 100P±5%, 50V, C0G, RoHS 3 C30, C32, C111

164 112-063102-R01 Surface Mounted Capacitor / 0603, 1000P±10%, 50V, X7R, RoHS 8 C12, C13, C39, C132, C160, C183, C184, C200

165 112-063103-R01 Surface Mounted Capacitor / 0603, 0.01uF±10%, 50V, X7R, RoHS 1 R91

166 112-063130-R01 Surface Mounted Capacitor / 0603, 13P±5%, 50V, C0G, RoHS 1 C8

167 112-063150-R01 Surface Mounted Capacitor / 0603, 15P±5%, 50V, C0G, RoHS 1 C25

168 112-0631R0-R01 Surface Mounted Capacitor / 0603, 1P±0.25P, 50V, C0G, RoHS 3 C9, C55, C90

169 112-063270-R01 Surface Mounted Capacitor / 0603, 27P±5%, 50V, C0G, RoHS 4 C4, C29, C188, C191

170 112-0632R5-R01 Surface Mounted Capacitor / 0603, 2.4P/2.5P±0.1P, 50V, C0G, RoHS 3 C1, C3, C185

171 112-063330-R01 Surface Mounted Capacitor / 0603, 33P±5%, 50V, C0G, RoHS 1 C213

172 112-063360-R01 Surface Mounted Capacitor / 0603, 36P±5%, 50V, C0G, RoHS 1 C27

173 112-0633R0-R01 Surface Mounted Capacitor / 0603, 3P±0.25P, 50V, C0G, RoHS 1 C41

174 112-0633R5-R01 Surface Mounted Capacitor / 0603, 3.5P±0.25P, 50V, C0G, RoHS 1 C2

175 112-063470-R01 Surface Mounted Capacitor / 0603, 47P±5%, 50V, C0G, RoHS 1 C36

176 112-063471-R01 Surface Mounted Capacitor / 0603, 470P±10%, 50V, X7R, RoHS 5 C5, C72, C168, C171, C206

177 112-063474-R01 Surface Mounted Capacitor / 0603, 0.47uF+80%-20%, 16V, Y5V, RoHS 2 C320, C337

C66, C162, C230, C288, C340, C345, C346,

C364, C375, C377, C378, C379

C6, C7, C21, C23, C31, C34, C43, C46, C49,

C56, C57, C58, C62, C63, C65, C67, C71,

C73, C76, C77, C78, C79, C80, C81, C82,

C85, C86, C92, C94, C97, C98, C100, C109,

C110, C113, C119, C125, C126, C127, C131,

C133, C

21

PT6800 Service Manual

178 112-0634R0-R01 Surface Mounted Capacitor / 0603, 4P±0.25P, 50V, C0G, RoHS 1 C17

179 112-0635R0-R01 Surface Mounted Capacitor / 0603, 5P±0.25P, 50V, C0G, RoHS 7 C16, C18, C28, C60, C156, C174, C189

180 112-0636R0-R01 Surface Mounted Capacitor / 0603, 6P±0.5P, 50V, C0G, RoHS 3 C14, C42, C50

181 112-0638R0-R01 Surface Mounted Capacitor / 0603, 8P±0.5P, 50V, C0G, RoHS 2 C24, C182

182 112-0639R0-R01 Surface Mounted Capacitor / 0603, 9P±0.5P, 50V, C0G, RoHS 1 C147

183 112-063R50-R01 Surface Mounted Capacitor / 0603, 0.5P±0.1P, 50V, C0G, RoHS 2 C40, C107

184 112-072105-R01 Surface Mounted Tantalum Capacitor / TP type, SIZE P, 1uF±20%,10V,RoHS 4 C229, C236, C322, C355

C20, C89, C93, C120, C122, C130, C163, C197,

185 112-072475-R01 Surface Mounted Tantalum Capacitor / TP type, SIZE P, 4.7uF±20%,10V,RoHS 21

186 112-073105-R01 Surface Mounted Capacitor / 0805, 1uF+80%-20%, 16V, Y5V, RoHS 1 C227

187 112-073334-R01 Surface Mounted Capacitor / 0805, 0.33uF+80%-20%, 10V,Y5V,RoHS 1 C172

188 112-102104-R01 Surface Mounted Tantalum Capacitor / TS type, SIZE A,0.1uF±20%,35V,RoHS 2 C96, C102

189 112-102105-R01 Surface Mounted Tantalum Capacitor / TS type, SIZE A,1uF±20%,16V,RoHS 2 C112, C118

190 112-102156-R01 Surface Mounted Tantalum Capacitor / TS type, SIZE A,15uF±20%,6.3V,RoHS 1 C141

191 112-112476-R02 Surface Mounted Tantalum Capacitor / TS type, SIZE B,47uF±20%,10V,RoHS 1 C294

192 113-010100-R01 Surface Mounted Trimming Capacitor / TZV2Z100A110, 3~10p+100, RoHS 2 C52, C117

193 114-06E180-R01

194 114-06E560-R01

195 114-06E680-R01

196 114-06G101-R03 Surface Mounted Inductor / MLG1608BR10J, 100nH±5%, 0603, RoHS 1 L35

197 114-06G102-R01 Surface Mounted Inductor / MLF1608A1R0K, 1uH±5%, 0603, RoHS 1 L48

198 114-06G120-R01 Surface Mounted Inductor / MLG1608B12NJT, 12nH±5%, 0603, RoHS 1 L23

199 114-06G180-R01 Surface Mounted Inductor / MLG1608B18NJT, 18nH±5%, 0603, RoHS 1 L21

200 114-06G181-001

201 114-06G220-R01 Surface Mounted Inductor / MLG1608B22NJT, 22nH±5%, 0603, RoHS 2 L15, L17

202 114-06G221-R02

203 114-06G270-R01 Surface Mounted Inductor / MLG1608B27NJ, 27nH±5%, 0603, RoHS 1 L26

204 114-06G2R2-R01 Surface Mounted Inductor / MLG1608B2N2S, 2.2nH±0.3nH, 0603, RoHS 1 R314

205 114-06G332-R01 Surface Mounted Inductor / MLF1608A3R3K, 3.3uH±5%, 0603, RoHS 2 L10, L37

206 114-06G471-R01 Surface Mounted Inductor / MLF1608DR47K, 470nH±10%, 0603, RoHS 1 L43

207 114-06G561-R01 Surface Mounted Inductor / MLF1608DR56K, 560nH±10%, 0603, RoHS 1 L44

208 114-07E221-R01

209 114-07E330-R01

210 114-07E390-R01 Surface Mounted Wire Wound Inductor / C2012C-39NJ,39nH±5%,0805,RoHS 2 L36, L47

211 114-08E103-R01 Surface Mounted Inductor / FSLM2520-100J, 10uH±5%,1008,RoHS 1 L42

212 114-08E821-R01 Surface Mounted Inductor / FSLM2520-R82K, 820nH±10%,1008,RoHS 2 L50, L51

213 115-1R53R0-R04 Surface Mounted Air-cored Coil / 0.4*1.5*3TL, negative, high pin, RoHS 6 L1, L2, L3, L55, L57, L58

214 115-1R54R0-R04 Surface Mounted Air-cored Coil / 0.4*1.5*4TL, negative, high pin, RoHS 4 L4, L5, L6, L12

215 115-1R55R0-R01 Surface Mounted Air-cored Coil / 0.5*1.5*5T, positive, high pin, RoHS 1 L19

216 115-1R58R0-R02 Surface Mounted Air-cored Coil / 0.4*1.5*8TL, negative, high pin, RoHS 1 L18

217 117-000000-R04 Surface Mounted Bead / EMI,FILTER, SMT, BLM11A221S, 0603, RoHS 21

218 117-000000-R05 Surface Mounted Bead / EMI, FILTER, SMT, BLM21P300S, 0805, RoHS 6 L27, L28, L32, L65, L67, R143

219 119-060104-R01 Heat Sensitive Resistor / NTH5G16P42B104K07TH, 100K, 0603, RoHS 1 R188

220 122-112M80-R01

221 122-19M830-R01 Surface Mounted Crystal / 9.8304MHZ-NX5032GA, RoHS 1 X2

222 122-23M686-R01 Dip Crystal / 3.6864MHz，RoHS 1 X3

Surface Mounted Wire Wound Inductor / C1608CB-18NJ, Ceramic

chip18NH±5%, 0603, RoHS

Surface Mounted Wire Wound Inductor / C1608CB-56NJ, Ceramic chip

56nH±5%, 0603, RoHS

Surface Mounted Wire Wound Inductor / C1608CB-68NJ, Ceramic chip

68nH±5%, 0603, RoHS

Surface Mounted Multilayer Inductor / LGHK1608R18J-T, 180nH±5%, 0603,

Stop using

Surface Mounted Multilayer Inductor / LGHK1608R22J-T, 220nH±5%, 0603,

RoHS

Surface Mounted Wire Wound Inductor / LQW2BHNR22NJ03L /

LQN21AR22J, 220nH±5%, 0805, RoHS

Surface Mounted Wire Wound Inductor / C2012C-33NJ, 33nH±5%, 0805,

RoHS

Surface Mounted Temperature Compensated Crystal / NT5032SC,

12.8±2.5PPM, 5.0*3.2*1.6mm, RoHS

C208, C225, C261, C262, C273, C284, C305,

C307, C317, C336, C344, C350, C361

2 L24, L39

1 L78

1 L53

1 L7

5 L20, L25, L31, L38, L46

1 L14

1 L8

L9, L29, L30, L33, L34, L41, L49, L60, L62,

L63, L64, L66, L68, L69, L71, L72, L73, L74,

L75, L76, L79

1 X1

22

PT6800 Service Manual

223 124-020000-R15 Surface Mounted Connector / BL112-38RU, 38PIN, RoHS 1 CN3

224 124-030000-R01 Surface Mounted Connector / 532680670, 6PIN, RoHS 1 CN2

225 204-006500-R04A PT6500 Potentiometer Gasket / PVC,White , 0.3mm thickness, RoHS 1

226 603-06500M-R01 Programming IC / CPU, M16C-M3062LFGPGP, RoHS 1 IC7

227 102-M3062L-R01 CPU / M16C-M3062LFGPGP, FLASH, 100P6Q-A, RoHS 1

Appendix 3 Structural Parts List

No. Part No. Description Qty.

1 101-650051-R02 PT6500PCB / Universal Connector PCB, Double-sided, PT6500BA-070928. PCB, RoHS 1

2 101-650052-R04 PT6500PCB / FPCB, Double-sided, 0.1MM, PT6500BC-080515.PCB, RoHS 1

3 102-6800CN-R01B Display Module / FSTN, COB, RoHS 1

4 120-100000-R07 Plastic-packaged Wire / L=70mm,D=0.7mm, Red, AWG22, RoHS 1

5 120-100000-R08 Plastic-packaged Wire / L=70mm,D=0.7mm, Black, AWG22, RoHS 1

6 120-400000-R13 Flat Cable / 0.5*38P*90mm, RoHS 1

7 121-100000-R17 Speaker / MM3660-1601, 16, 1W, 36, RoHS 1

8 201-006500-R02B PT6500 PTT Cover / PC+ABS, Black, RoHS (Improved) 1

9 201-006500-R03 PT6500 VR Knob / ABS, Black, RoHS 1

10 201-006500-R04 PT6500 Rotary Encoder / ABS, Black, RoHS 1

11 201-006500-R05 PT6500 PTT Key / PC+ABS, Black, RoHS 1

12 201-006500-R06B PT6500 Anode Bracket / PC+ABS, Black, RoHS (The screw hole is changed to 1.4) 1

13 201-006500-R08B PT6500 LCD Lens / PMMA, Transparent, RoHS 1

14 201-006500-R09 PT6500 Light Guide / PMMA, RoHS 1

15 201-006500-R10C PT6500 Front Cabinet / PC+ABS, Black, RoHS 1

16 201-006800-R22 PT6800 Universal Connector Cover / ABS, Black, TPE, RoHS 1

17 202-000558-R08 PT558 Rubber Washer for Anode/Cathode Contact Sheet / Black, Silicone Rubber, Rigidity 40, RoHS 2

18 202-000558-R09 PT558 Waterproof MIC Cover / Orange Silicone Rubber, Rigidity 40, RoHS 1

19 202-003208-R07 PT3208 Heat-conductive Silicone Rubber Washer / Heat-conductive rubber, 2*6*9, Blue, RoHS 1

20 202-006500-R01 PT6500 Rubber PTT Key / Silicone Rubber, RoHS 1

21 202-006500-R02 PT6500 Main Waterproof / Silicone Rubber, RoHS 1

22 202-006500-R03 PT6500 Top Waterproof / Silicone Rubber, RoHS 1

23 202-006500-R05 PT6500 Waterproof for Anode Bracket / Silicone Rubber, Orange, 45°, RoHS 1

24 202-006500-R06A PT6500 Numeric Keypad / Silicone Rubber, Oil Spray, Laser Carving, RoHS 1

25 203-000558-R07B PT558 Antenna Connector, Nickel-plated Brass, RoHS 1

26 203-000558-R11 PT558 Nut for Antenna, Brass, Black Passivated, RoHS 1

27 203-006500-R01 PT6500 Al Chassis / ADC12, Nickel-electroplated, RoHS 1

28 203-006500-R02 PT6500 Anode Connecting Sheet / Nickel-plated P-Bronze, RoHS 1

29 203-006500-R03 PT6500 Keypad Metal Dome / METAL DOME, RoHS 1

30 203-006500-R04 PT6500 Anode/Cathode Contact Sheet / Gold-plated P-Bronze, RoHS 2

31 203-006500-R06 PT6500 PTT Key Metal Dome / METAL DOME, RoHS 1

32 203-006500-R07A PT6500 Grounded Sheet / P-Bronze, Nickel-plated, 0.15mm thickness, RoHS 2

33 203-006800-R26 PT6800 Circlip for Knob / Stainless Steel SUS304-1/2H, Heat Hardening Processed, RoHS 2

34 203-007200-R08 PT7200 Nut for Knob / Brass, Black Zn-plated, RoHS 2

35 204-006500-R01 PT6500 Dustproof Washer for LCD Lens / PORON, one side sticky, RoHS 1

36 204-006500-R03A PT6500 Tape for Universal Connector / PVC, one side sticky, Black, RoHS 1

37 204-006800-R01 PT6800 LCD Protective Film / THK‘S=0.15, PE, RoHS 1

38 204-006800-R05 PT6800 Waterproof Net for Speaker / Black, Waterproof Fabric, RoHS 1

39 204-006800-R06 PT6800 MIC Washer / Dustproof Net, Black, RoHS 1

40 204-007200-R02 PT7200 Tape for Universal Connector PCB / Sticky on both sides, RoHS 1

41 204-0KB36L-R03 KB-36L Sponge Cushion / Sponge, one side sticky, RoHS 1

42 301-20020G-R01 Machine Screw / M2.0*2.0 Pan Plus Ni-plated, RoHS 4

43 301-20030G-R03 Machine Screw / M2.0*3.0 Pan Plus Ni-plated, Outer Diameter 3.2,RoHS 1

44 301-20040G-R01 Machine Screw / M2.0*4.0 Pan Plus Ni-plated, RoHS 13

45 301-20080G-R02 Machine Screw / M2.0*8.0 Pan Torx Ni-plated, RoHS 2

46 301-30035D-R01 Machine Screw / M3.0*3.5 Pan Plus Black Zn-plated, RoHS 1

23

PT6800 Service Manual

47 302-17040G-R01 Self-tapping Screw / M1.7*4.0 Pan Plus Ni-plated, RoHS 1

48 302-20060G-R01 Self-tapping Screw / M2.0*6.0 Round Plus Black Ni-plated, RoHS 1

49 304-30030G-R02 Nonstandard Screw / M3.0*3.0 Thick Head Black Ni-plated, RoHS 1

Appendix 4 Accessories

Name Model Specification External View

Battery KB-36C 7.4V, 1750mAH, Li-ion Battery

Hand Strap KGS-03

KME-68B

Earphone

KME-68D

Charger KBC-60Q 7-hour standard charger

Power Adapter KTC-50D1

KA Whip Antenna

Antenna

KA Stubby Antenna

24

PT6800 Service Manual

Figure 1 PT6800 Block Diagram

D D

C-RXD1

VCCN

TONEO

E-SCL

SHIFT

E-TEST

A-SCLK

A-TDATA

A-DIR

QTVCO

PLL-LP

PC/TV

QT TCXO

C-TXD1

PABC

APC2 SW

APC1 SW

RX SW

RSSI

VOX SW

MIC MUTE

TX SW

PLL-STB

PLL-DATA

PLL-CLK

MAX AF SW

GREEN

RED

5TC

5RC

5CC

W/N N

W/N W

AFCO

RX MUTE

W-DATA

1

5M

EEPROM

24C256

IC8

2

123

456

789

0*#

MIC MIC

3

W-SCLK

W-MUTE

LAMP

HPC PC

M30620

PF1

PF2

PF3

PTT

KEY

KEY BOARD

5M

SCLK

SDATA

BUSY1

C C

A-DI/O

E-SDA

TONEI

RESET

PLL-UL

W-BUSY

A-TCLK

A-RDT

H-D0

H-D1

H-D2

H-D3

H-DV

BATT

BUSY

VOX

QT/DQT IN

MANDOWN

CPU

IC7

X2

9.8304MHz

PTT BOARD

SW

LCD

ENCODER

SW2

MOD

pin 23

pin 7

W588A08 0

IC13

AK2346

IC6

B B

Q15

5C

BUSY

D22

DET

NOISE

AMP

Q21

5R

AF OUT

IF DEMODULATOR

450KHz

450KHz

CF2

IC4

CF1

QT TCXO

12.8MHz
TCXO

X1

*4 2ND LOCAL AMP

5C

5C

RIPPLE

FILTER

Q14

VCO

RX

5R

A A

PLL-CLK

PLL-DA

PLL-UL

PLL-LE

PLL IC

ADF4111

IC2

LOOP FILTER

5C

VCO

Q11

Q6

TX

MOD

BUFF

Q5 Q4

RF AMP

5C

TX/RX SW

1

BUFF

Q8

2

3

5T 5R

W588C

Q37

SW

pin 19

5T

pin 20

pin 3

5TC

Q43

SW

VOX

XC6204B502MR

Q40

MIC RXD

MIC AMP

IC14A

IC14B

AMP

MUTE

SW1

POW&VOL

MUTE

Q46

SW

pin 7

AMP LP LP AMP

Q30

HP

Q31

HP

HT9172

IC10

IC1A

HP AMP

IC1B

DTMF

2T

Q33

SW

AF POWER AMP

TDA8541

IC9

TXD

SPEAKER

5R

IC5A IC5BIC5CIC5D

5R

5R

CTCSS/DCS

5RC

BATTARY

5R

Q39

SW

5M

4

5

Title

Date: 2007-7-26 Sheet of

File: X:\PT6500\..\PT6500 BLOCK DEAGRAM.SchDocDrawn By:

A3

Number RevisionSize

6

5C

SAVE

Q44

SW

XC6204B502MR

Q45

7.5V

DET COLL

450KHZ

CD1

IF AMP

Q20

51.65MHz
XF1

Q19

MIX

BPF

APC

Q12

RF AMP

Q18

BPF

SW

APC CONTROL

IC3

APC

RF AMP

Q4

5T

DRIVE

Q5 Q3

PRE

5T

4

DRIVE

RF POWER

Q1

5T

ANT SW

5

LPF

TO ANT

6

25

PT6800 Service Manual

Figure 2 PT6800 Main Board Schematic Circuit Diagram

CNCSS

RXD

TXD5VPF

C329 471

5

VIN

1

*

471

0R

C330

R283

C331

Q46

R284

104

L73 BLM11A221S

J2

C332

471

C333

471

R258

0R

ST2301

Q44

DTA123JE

Q45

C326

16
15
14
13
12
11
10

9

356810

C327

471

R282

TC75W51FU

1
2
3
4 5

C325

223

C328

PTT

1234567891011121314151617181920212223

CN3

CN38

CNVSS
13 RXD
12 TXD
35 PF
38 PTT

R330 1K
R331 1K
R332 1K
R333 1K

UP

46 BATT

SW2ENCODER

47 RSSI
48 BUSY

GND

R274

47K

47K

35 PF

38 PTT

SW3 PF3

C323

471

471

4.7uF/10V
C317

ST2301

Q43

XC6204B502M R

NC4OUT

VSS

CE

3

C315

105

IC13
*

VSS1

RST

SPK

NC

VDD1

NC

PWM-

NC

VSS

BUSY1

SCLK

OSC

NC

VDD

SDATA8NC

11121612

C320

392

C316 471

D36

MA742

C324

C322

1uF/10V

R277

1K

C321

471

C313 224

IC14

*

8
7

­+

6

­+

R278

18K

R281

15K

C319

104

R280

27K

Q42

*

49 VOX
50 QT IN

DN

R276

45 UP

MANDOWN

BLM11A221S

44 DN

C366 471

C367 471

C368 471

C369 471

C370 471

54 VOX SW
51 MIC MUTE
52 HPF PC

CNVSS

46 BATT

MANDOWN

*

C376

471

R315

*

L76

BLM11A221S

MANDOWN

J3

1

2

7

CN2 CN6

6
5

C301

471

4
3
2
1

C311

4.7uF/10V

Q39

471

4.7uF/10V

5

VIN

2

1

1
2
3
4
5
6
7

Q41

2SC4116

C314

105

C310

*

*

*

3

*

OUT1VDD2GND

NC4NC

R264

0R

C303

104

R265

470K

R271

470K

55 MICOUT

2 TO

C305

C306

C307

R250 100K

Q40

30 RX MUTE

58 RX AF OUT
50 QT IN

33 W-SCLK

32 W-DATA

31 W-BUSY

R267

*

R268

*

C302

*

Q37

*

42 H-D0
41 H-D1
40 H-D2
39 H-D3

57 W588

43 H-DV

R272 *

34 W-MUTE

56 AGC

57 W588
2 TO
3 TI

R316 1K

14 PABC
58 RX AF OUT

26 MAXAF

R279 100K

55 MICOUT

R269

0R
MA742

D35

29 AFCO

Q36

DTA144EE

L72 BLM11A221S

C304

R270 1M

C309 47P

R263 *

C308
*

R266 *

Q38

*

R273

SP­SP+
EXT SW

12 TXD

R236

R249

IC12

5

5 A-TCLK
8 A-TDATA
7 A-DI/O
4 A-RDT

6 A-SCLK

9 A-DIR

*

*

DTC144EE

101

*

R167 1K

R326

1K
R3271K
R3281K
R3291K

L71

C299 105

C297 22P

C298 22P

X4

47K

471

C C

C247

471

38 PTT

39 H-D3

40 H-D2

41 H-D1

42 H-D0

43 H-DV

44 DN

45 UP

S-CS

R322 1K

R323 1K

R324 1K

R325 1K

R217 1K

R221 1K

R226

R192

R242

47K

1K

1K

75

76

L-SLD

77

L-SLK

78

L-CS

79

K1

80

K2

81

K3

82

K4

83

K5

84

K6

85

K7

86

K8

87

LAMP

88

BATT

89

RSSI

90

BUSY

91

VOX

92

QT/DQT IN

R2451K35 PF

93

PF

94

AVSS

95

MANDOWN

96

VREF

97

AVCC

98

VOX SW

99

MIC MUTE

C-CNVSS

100

HPF PC

C-BYTE

TONEO

E-TEST

TONEI

RESET

E-SDA

SHIFT

E-SCL

XOUT

VCCN

C365

471

332

682

3

PST9140NR

NC1VEE12VEE2

OUT

VCC

4

C293

C290

471

104

*

12

XOUT

SCLK

DIR

15

14

13

3.6MHz

X3

R237 1M

4.7uF/10V

C295

*

C291 *

R243

*

9

DV

OE

D011D112D213D3

10

14

R239 *

R247

*

R206

47K

Q52

R2400RC283

C289

105

R238

1K

R246 68K

C296

OUT-

R262

0R

C318

C312

471

R241 *

C292

*

SPK1

VSS12XIN

6

7

8

5

11

2

9

1

4

3

10

R222 0R

R227 0R

R216 4.7K

R201 0R

R207

R233

15K

4.7K

C286

R223

R231 12K

C253

471

C287

*

R198
1K

R170 0R

C254

5P

IC11

Q32 DTC 144EE

5

R232330K

5

GND4SDA

R228 47K

R224 *

6

R21110 K

A2

SCL

7

A1

TEST

8

C270 471

A0

VCC

1 VCCN

2 TO

3 TI

24LC256

C265

333

R306

100K

R215 33K

R203

220K

0R

R210

180K

C260

27P

EXFOUT

RXLPFO

RXAFIN

RXINO

RXAF

VDD

XIN

21

16

18

22

19

17

20

C258

33P

C271

105

C264 15 1

R220

56K

R195

27K

R209

12K

C274

104

C275

103

C263 105

C251 104

R169

82K

BLM11A221S

L69

C284

180K

R218

C279

471

Q33 2SK1824

560K

100K

R213

R225

1K

C281

*

R144

10K

R235 *

R229

*

C239

393

C238

473

R177

3.3K

IC10

R179

150K

VP1VN2GS3VREF4INH5PWDN6X17X28VSS

RT/GT

VDD

EST

R180

1.5K

C243

393

17

15

16

18

R181

2.7K

333

C285*

R189 2.2K

R182

150K

C276 *

Q31
2SC4617

R244

22K

C248

*

C259

*

*

C372

105

C278

L70*

R292

Q51

2SK1824

R190

*

Q35

DTC144EE

Q34

2SK1824

102

C255

0R

C273 4.7uF/10V

R214

47K

4

IC9 TDA8541

MODE1SVR2IN+3IN-

R178

0R

BLM11A300S

OUT+

GND

VCC

5

6

7

8

L67

C256

103

C257

104

R230

22R

C280

104

C261

4.7uF/10V

C272

471

C282

471

R317*

Q48 ST2302

R261

1M

R259

*

C294

*

R260

L56

0R

47UF/10V

J1 *

27 W/N N

28 W/N W

29 AFCO

30 RX MUTE

31 W-BUSY

32 W-DATA

33 W-SCLK

34 W-MUTE

S-SCK

S-SI

S-SO

L63

BLM11A221S

R165 1K

R163 1K

R162 1K

W/N-N51W/N-W52AFCO53RX MUTE54W-BUSY55W-DATA56W-SCLK57W-MUTE58S-SCK59ACC60S-SI61VSS62S-SO63S-CS64NC65PTT66H-D367H-D268H-D169H-D070H-DV71DN72UP73L-AO74L-RES

50

5CC

49

5RC

48

5TC

47

RED

46

GREEN

45

MAX AF SW

44

C-VCC

43

PLL-CLK

17

R3211K

C242 22P

4 A-RDT

18K

9

103

470K

R304

102

R303

C353

R305

D33

A-TC LK

A-SCLK

19

18

R3201K

R3181K

5 A-TCLK

6 A-SCLK

C236

1uF/10V

AK2346

105

18K

R184

C+in

10

R204 120K

120K

C352

104

R197

R342

*

C354

105

C363

SW1

10K

104

103

471

F1 3A

104

103

DC

+

A-TDATA

A-DI / O

A-DI R

21

22

20

R160 1K

R154 1K

R1641K

7 A-DI/O

8 A-TDAT A

9 A-DIR

27K

IC6

R155

*

C237

L68 BLM11A221S

33K

R185

GND

11

C267 182

R193

R219

560K

R148

1K

TC75W51FU

C351

1
2

­+

3
4 5

R302

R301

1K

100K

Q53

2SC4617

C233

C234

C235

C231

C232

NC

*

R171

D+in

IC1

470K

23

10 PLL T/R

0R

105

220K

12

R300

1K

PLL-DATA

PLL-STB

C-HOLD

APC1 SW
APC2 SW

C-RXD1

QT TCXO

QT VCO

PLL T/R25PC/TV

24

R153

C229 1uF/10V

C228

R152

C227

47P

R161

D-in

L62

BLM11A221S

­+

10K

R156

R299

*

*

C225

4.7uF/10V

42
41
40

PLL-UL

39

R137 4.7K

38

TX SW

37

RX SW

36
35
34

PABC

33

NC

32

R1384.7K

NC

31

C-CLK1

30
29

C-TXD1

28
27

NC

26

4.7K

R145

4.7K

R136

4.7K

C89

4.7uF/10V

R141

15K

C93

4.7uF/10V

C219

333

R139

22K

C220

223

*

C217

105

R256

R146

270K

R140

12K

C221

*

C218

105

R147

27K

R275

R288

10K

27K

DTA144EE

28 W/N W

R142 43K

Q50

R255

NC

11 PC/TV

47 RSSI

52 HPF PC

R151 51K

Q25

DTA144EE

R135

2.2K

CD1

C24450

104

C252

C269

683

R174 18 0K

R166

22K

IC5 NJM2902V

Aout1A-in2A+in3V+4B+in5B-in6Bout

Dout

R194 180K

13

14

C249

123

D34 *

C241222

Q26

DTA123JE

C244

471

8

L79BLM11A221S

7

R199 10K

6

R234

1M

R172

R29

470K

C350 4.7uF/10V

C224

*

Q27

*

R150

R248

33K

C214

223

R311

33K

C226

223

R149

*

C222

*

Q28

R143 BLM21P 300S

C223

471

IC7

M30620

A-RDT

C-NMI

INTO

VCC

15

13

14

16

L66 BLM11A221S

4.7K

R173

L64 BLM11A221S

9.8304MHz

C250 20P

X2

3

2

1

IC8

R186

C246

222

R187

AGNDI N1AGND2TXIN3TXINO4LIMLV5EXIT6MOD7VSS8TCLK9TDATA10DI/O11RDF/FD

RXIN23TEST

24

R175

0R

C245

561

R176

5.6K

C266

471

4.7uF/10V

C262

C230 221

7

R196

Cout

C-in

8

C268 103

C277 393

Q29

2SK1824

R157

150K

2SC4617

Q30

R307 0R

C240

R159 150K

4.7K

R191

12K

C371

105

R343

470K

R95

0R

100K

5.6K

105

0R

BLM21P300S

L65

1SR154-400

7.5V

-

B B

6

IC17

DS2431

A34A45A5

GND

A12A2

1

3

R257

2K

R129 1K
R130 1K
R131 1K

DTC144 EE

R134

471

2.7K

2.7K

C216

Q24

IC16 XC62FP 3502

GND

OUTIN

BLM11A221S

L49

R2122.7K

R252

10K

C34

8

SO

CS

2

1

R253 1K

R254

R2511K

C212

102

R128

3.3K

R133

9
10
11
12

C215

82P

13
14
15
16

C213

33P

D25 RED

D26 GREEN

D31 GREEN

330R

R119

330R

1K

R202

R2081K

R200*

IC15W25X40

SI5SCK6HOLDB7VCC

WPD

GND

4

3

R205

1K

R183

47K

R188 100K

T

C199

104

C192

102

R117

56R

C205

471

R112

3.3K

C210471

C209 104

C207

103

C197

4.7uF/10V
L61

Q23

DTC144EE

1K

R118

10R

R125

27K

R123

C211

3.3K
C198 102

C204 102

R126 10K

102

FILI8AF

7

FILO

QUAD

R121150K

6

DEC

IFO

5

IFI

RSSI

4

VCC

NDET

3

MIXOUT

NREC

2

XOUT

GND

1

XIN

MIXI

C201

182

IC4

TA31136

C196

103

C176

18P

C202

471

103

L59

56R

*

C193

471

R84

56K

D40
HVC355B

1M

R8

D30
HVC355B

1M

R114

R113 1M

R115

1M

C190 27P

D27

HVC355B

L60BLM 11A221S
C200

102

C208

4.7uF/10V

180K

R124

R122

270K

C206

471

D29
HVC355B

R116 1M

C203

471

C195 2.5P

R127

1M

R120 1M

C191 27P

D28

HVC355B

ICA

25 SAVE
24 5RC
23 5TC

26 MAXAF

22 P-CLK
21 P-DT
20 P-STB
19 P-UL

18 TX SW
17 RX SW
16 APC1
15 APC2
14 PABC
ICA

13 RXD
12 TXD

11 PC/TV

Q22

DTC144EE

R107

R108 100R

100K

C347

27P

C334 3P

C194

27P

C189 5P

C186 8P

C183

102

C184

102

R11010 0K

68K

C188

27P

L58 3T

R109
1M

C187 *

L573T

C185 2.5P

C161 223

R313

68K

C163

4.7uF/10V

22K

22K

15K

D24 *

S-SCK
S-SI

S-SO
S-CS

R101

27K

27 W/N N

28 W/N W

48 BUSY

C172

334

C180

D22

MA742

102

C178

104

Q21

2SC4617

R97

330K

C179

102

C166

104

C380

105

R98 6 .8K R99 6.8K

D18

DAN222

R10222K R103 22K

R82 2 2K R83 22K

CF1 450H

CF2 450 F

DAN222

D19

C167

104

C381

105

4.7K

L48 1uH

C173

471

R89

Q20

2SC5108

560K

R88

R90

103

C300

*

270R

C164

XF1 51.65MHz

C349

*

C165

270R

R91

103

C175

471

C181

L51

0.82uH

C1828PR96

*

0.82uH
L50

100K

C373

R100

150R

R111

56K

Q19

3SK318

104

C177

102

C171

471

R78

39nH

R94

0R

L1

3T

D20

MA2S 11 1

*

R85

470K

C88

1P

2SK1829

R87

36K

L55

3T

HVC355B

D23

C169

1.5P

L2

3T

C78

471

L53
68nH

R93

*

R92

22R

R104

220R

Q18

3SK318

R106

L52

0R

C168

471

HVC355B

D21

C170

1.5P

L54 0R

C174

5P

10 PLL T/R

1 VCCN

C133

471

L41

BLM11A221S

R74

4.7K
C150

471

R69

10R

C151

104

C157

333

R76 1KR754.7 K

C152

103

4.7uF/10V

C130

1

4

VC

VCC

2

3

GND

OUT

R86

X1

12.8MHz

C158

183
R79

C142

10P

C159

153

L42

10uH

R80

R68

1K

0R

C143

10P

C128

47P

C155

*

R61

200K

Q15

2SC5108

560nH

L44

C146

R77 10R

471

R59

10K

C134103

L43

470nH

C144

331
C153 *

C1350RL45

*

C154 33P

C129

33P

L46

220nH

C136

0R

C145

*

C116

*

C137

471

D16

MA2S111

C141

15uF/6.3V

R62

2SC4617(S)

4.7K

C127 47 1

18 TX SW
17 RX SW

D17HSC277

R73

4.7K
C149

*

C138

*

L39

18nH

R105

C147

9P

C139

0R

L40

*

C148

C160

*

C156

5P

L47

R81

Q17

47 RSSI

15 APC2

Q16

DTC144EE

0.47R

R65

0.47R

R66

R56
*
R57 0.47R

150K

R58

150K

R67

R72

150K

471

150K

150K

C125

R63

4

B+in

Bout

B-in

5

7

6

R70

27K

C126

471

C131

471

R71

56K

R60

1M

C132

102

R64

*

Q54

2SK1824

R312

*

R310

1K

R3080R

R309

*

C140

223

4.7uF/10V

R54

DTC144EE

HVC376B

4P

8P

Q14

D15
HZU5ALL

150K

R55

Aout1A-in2A+in3GND

V+

A A

19 P-UL

20 P-STB

21 P-DT

22 P-CLK

C104

101

C105

101

C106

101

C95

103

C110

L34

BLM11A221S

471

C113

471

R49

10R

C114

104

R40 1K

R47 10R

R42 15 0K

C115

103

C122

MA2S111

D10

C109

471

16

CPGND

AGND

RFinB

Rset

CP

1

5

4

3

2

C119

471

R48

4.7K

101

R43

560R

C96

0.1uF/35V

R44

560R

R45

2.7K

C112

1uF/16V

R36

C121 101

HVC376B

L38220nH

10P

2SK508NV(K52)

C120

R53

DTA144EE

C118
1uF/16V

Q11

DTC144 EUA

IC3 NJM2904

Q12

D14
HVC376B

C117

22R

R46

2.7K
R41

560R

C102

0.1uF/35V

C86

471

BLM11A221S

L33

BLM11A221S

L35

100nH

L30

HVC376B

D12

D11

R37

4.7K

C101

22P

R38

270K

R34

270K

C108

10P

39nH

L36

C85

471

L31

220nH

C103

8P

104

C99

104

R39100R

L37

3.3uH

R52

C97

471

C107 0.5P

180R

DTA143T E

C100

471

C98

471

L29

BLM11A221S

471

BLM21P300S
L32

C92 47 1

R35
39K

Q10

471

C91

103

105

C94

471

C111

101

R50 15K

R51

1K

Q13

D13

C123

C124

16 APC1

4.7uF/10V

8

2.7K

RFinA

6

C84

C74 5P

C75 5P

Q8

2SC5108

10P

1SV278

1P

1P

C76

471

C83

471

Q9

471

C82

22R

C79

471

47K

C81

L27
BLM21P300S

C87

C77 471

R3247K

C80

471

L28 B LM21P300S

56nH

C6

471

BLM11A221S

L9

1

C21

471

R2 10R

R24

C33

104

C61

*

C20

4.7uF/10V

IC2 ADF4111

DGND9CE10CLK11DATA12LE13MUXOUT14DVDD15Vp

AVDD

REFin

7

8

C58

471

C48 3P

L24

18nH

C59

10P

L21

18nH

C49 471

R25

150K

C70

D5

HVC376B

C40 0.5P

D9

C68

L20220nH

C69

C5210P

3P

2SK508NV( K52)

L25

220nH

R20 100R

C73

Q7

DTA143T E

C62

471

C65

R22

100R

R31

R21 10K

R14
330R

C56

471
471

C57

R16

4.7K

C23

471

R12

1K

C7

471

R33

33R

L26

27nH

*

R26

18P

5.6K

C72
471

R27

22R

R18
1K

12nH

L23

C67

471

R23 2 70R

R17
270R

C51

*

C53

R28

*

1.5K
R30

C47 *

103

C54

R15

82K
C71
471

471
103
105

R19
270R

C63

471

C46

471

C55

1P

HSC277

*

0R

C64

*

L22

C50

6P

L78

C60

5P

1K

HVC376B

Q6

C42 6P

R131.5K

C43
C44
C45

D7

D8

D6
HVC376B

D4

C41

150K

22nH

L19
5T

*

2

R11

C30

101

L7

180nH

HVC376B

D2

3

C8

13P

C24

8P

33nH

L8

C14 6P

L10

3.3uH

R9
150R

C9

1P

C90

1P

Q2

2SC5108

R6

L17

4

C10

33P

C22 1 5P

2SC5108

Q4

R1

2.2K

L15

22nH

C11 1 0P

R4

HSC277

4.7K
D3

C31

471

R7

47K

Q49

2SC5108(Y)

5

C38

R10

Q5

2SC3356

C374

NC

C39 10 2

R5

15R

C32

100P

L16

0R

6

Q3

RD01M US1

R3

*

C12

102

R314

2.2nH

C36

47P

C13

102

Q1

RD07

C35

C29
27P

C37 *

C348

L18

8T

C25 15P

*

C26 *

7

C27 36P

L3

3T

5P

C28

C4

27P

L14

HVC131

D1

D39 HVC131

220nH

C19
10P

L12

4T

C5

471

C16

5P

C1

2.5P

L4

4T

C17

4P

C2

3.5P

L5

4T

C18

5P

C3

2.5P

L6

4T

C15

*

L13

*

CN1

TO ANT

8

MIC

SP-

SP+

SP SW

D D

38

C162 221
C288 221
C345 221
C346 221

1

C66 221
C340 221

C375 221
C377 221
C378 221

C379 221

SP-

2

3

4

5

文件号

设计

批准

6

主板电原理图名称

7

机型

版本

审核

第张 张共

1

/

1

8

243925262728293031323334353637

EXT SW

SP+

C362 103

L75

BLM11A221S

C364

221

C359 104

C361

4.7uF/10V

BLM11A221S

L74

C360

471

R286

47K

R287

10K

C335

471

C336

4.7uF/10V

23 5TC

24 5RC

25 SAVE

C344

4.7uF/10V

XC6204B502M R

NC4OUT

VSS

CE

2

3

D38

MA2S111

C339

105

R289

*

R293

*

C358 *

R290

*

C341

*

56 AGC

C337

392

C356 471

D37

MA742

C355

1uF/10V

R295

2.7K

C338

471

Q47

2SA1586

54 VOX SW
49 VOX

0R

R291

0R

R298

0R

C342

27P

R285

820K

75K

R296

*

104

2SK1824

51 MIC MUTE

R297

1K

10K

38 PTT

L77

0R

13 RXD

R294

*

C357

*

*

26

PT6800 Service Manual

Figure 3 PT6800 Main Board Top Layer Position Mark Diagram

27

PT6800 Service Manual

Figure 4 PT6800 Main Board Bottom Layer Position Mark Diagram

28

PT6800 Service Manual

Figure 5 PT6800 Main Board Top Layer Position Value Diagram

29

PT6800 Service Manual

Figure 6 PT6800 Main Board Bottom Layer Position Value Diagram

30

PT6800 Service Manual

Figure 7 PT6800 Key Board Schematic Circuit Diagram

D D

1

2

3

文件号

设计

批准

4

按键板电原理图名称

5

6

机型

版本

审核

第张 张共

YELLOW

D2

YELLOW

D6

YELLOW

D7

MIC

102

102

R27 *

2SK1824

R31

36K

R17

100R

D3

YELLOW

R18

100R

D4

YELLOW

YELLOW

D5

R19

100R

C17

104

D1

*

FMMT591

BLM11A221S

L4

Q2

DTC144EE

C18

102

C16

4.7uF/10V

MIC1

R22

1.8K
R20

470R

C22

C20 105

C19

102

L3

BLM11A221S

C21

R23

*

R21

100K

Q3

C41

104

C42

104

C C

R24

0R

Q1

R13 1K

R14 1K

R15 1K

R16 1K

BLM11A221S

L5

C38

470P

R25

470R

C39

470P

4.7uF/10V
C40

R26

1.8k

R29

NC

C13

103

R28

0R

C12

102

R30

*

C14

102

L1 BLM11A221S

C15

103

L2 BLM11A221S

R9

1K

R10

1K

R11

1K

R12

1K

B B

KEY14

*

KEY15

0

KEY16

#

CN2

CN10

R8

*

CN1

CN14

12345678910111213

GND

RXD

TXD5VGNDCNPF

4

KEY11

7

5

KEY12

8

6

KEY13

9

123456789

R4 0R

R7 2.7K

R6 2.7K

R5 2.7K

PTTMEMIC

1

KEY8

2

KEY9

3

KEY10

10

R3 2.7K

R2 2.7K

R1 2.7K

15

14

M SW

SP-

SP+

GND

1

/

7

1

A A

1

KEY1

F1

KEY5

KEY2

F2

KEY6

KEY3

F3

KEY7

KEY4

F4

C1

221

C2

221

C23

221

C24

221

C25

221

C26

221

C27

221

C28

221

C6

221

C7

221

C8

221

C9

221

C10

*

C29

*

C30

*

C31

*

C32

*

C33

*

C34

*

C35

*

C36

221

C37

221

2

LCD

3

4

5

6

7

C11

221

CN3

8

CN38

1011121314151617181920212223243925262728293031323334353637

123456789

5V

MIC

SP-

SP+

SP SW

38

CNCSS

RXD

TXD

PF

PTT

8

31

PT6800 Service Manual

Figure 8 PT6800 Key Board Top Layer Position Mark Diagram

32

PT6800 Service Manual

Figure 9 PT6800 Key Board Bottom Layer Position Mark Diagram

33

PT6800 Service Manual

Figure 10 PT6800 Key Board Top Layer Position Value Diagram

34

PT6800 Service Manual

Figure 11 PT6800 Key Board Bottom Layer Position Value Diagram

35

PT6800 Service Manual

Figure 12 PT6800 PTT Board Schematic Circuit Diagram

1

2

批准

设计

D D

文件号

C C

CN6

SW1

*

B B

CN1

12345

6

7

A A

1

2

SW2

*

R1

20K

PTT

SW3

*

R2

4.7K

板原理图名称

3

机型

版本

审核

第张 张共

3

11/

4

4

36

PT6800 Service Manual

Figure 13 PT6800 PTT Board Top Layer Position Mark Diagram

Figure 14 PT6800 PTT Board Bottom Layer Position Mark Diagram

37

PT6800 Service Manual

Figure 15 KB-36C Schematic Circuit Diagram

L1

D1

1N5819

Charger +

CN1

T

1uH

L3

0140-05

C1

TH1

1000p

10k

t

BAT +

LTP190

BAT -

Charger -

2.2k

L2
1uH

38

PT6800 Service Manual

Figure 16 KBC-60Q Schematic Circuit Diagram

39

PT6800 Service Manual

Figure 17 PCB Layout 1

40

PT6800 Service Manual

Figure 18 PCB Layout 2

41