Kirisun PT6500 Service Manual

PROFESSIONAL TWO-WAY RADIO

PT6500

FM PORTABLE RADIO SERVICE MANUAL

V071208

Welcome

PT6500 SERVICE MANUAL

DANGEROUS!!

Do not connect the AC power or DC power over 7.4V with any connector or terminals 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 bigger than 20 dBm (100mW).

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

If the antenna has been damaged, do not use the radio. Damaged antenna may cause lightly 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.

CONTENTS

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

Chapter 2 Radio Overview and Function Keys.................................2

Chapter 3 Electrocircuit.....................................................................3

Chapter 4 Function Description and Parameter Setting....................7

Chapter 5 Service Assemble and Disassemble..............................12

Chapter 6 Radio Debugging............................................................14

Chapter 7 Major Specifications.......................................................18

Chapter 8 Trouble Shooting............................................................18

Appendix 1 Abbreviations................................................................19

Appendix 2 Spare List.....................................................................19

Appendix 3 Electronic Component List...........................................20

Appendix 4 Framework Component List.........................................20

Appendix5 Accessory List...............................................................31

Figure 1 PT6500 Top Main Board Position Number Diagram.........32

Figure2 PT6500 Bottom Main Board Position Number Diagram....33

Figure 3 PT6500 Top Main Board Position Number Diagram.........34

Figure4 PT6500 Bottom Main Board Position Number Diagram....35

Figure 5 .........36

PT6500 PTT Top Board Position Number Diagram

STATEMENT

Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of KSP6500 software.

Unauthorized Duplication of KSP6500 software is strictly prohibited. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the MCU software. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of the radio outward/structure/circuit design. Kirisun Electronic (Shenzhen) Co., Ltd owns the copyright of this service manual. Unauthorized publication is prohibited. Kirisun Electronic (Shenzhen) Co., Ltd owns the trademarks

KIRISUN , , .

Figure 6 ....37

Figure 7 38

Figure 8 ....38

Figure 9 PT6500 Schematic Circuit Diagram(136-174MHZ) .........39

Figure 10 PT6500 Schematic Circuit Diagram(400-470MHZ) ...... 40

Figure 11 PT6500 Main Board Schematic Circuit Diagram ...........41

Figure 12 PT6500 Keyboard Schematic Circuit Diagram...............42

Figure 13 PT6500 PTT Board Schematic Circuit Diagram.............43

PT6500 PTT Bottom Board Position Number Diagram

PT6500 Top Keyboard Schematic Circuit Diagram..........

PT6500 Bottom Keyboard Schematic Circuit Diagram

PT6500 SERVICE MANUAL

Chapter 1 Introduction

1.1 Introduction

This manual applies to the service and maintenance of PT6500 series of FM portable radios, and is designed for the engineers and professional technicians that have been trained by Kirisun. In this manual you can find all the information of product service. Kirisun reserves the rights to modify the product structure and specification without notice in order to enhance product performance and quality. You can also log on our website www.kirisun.com to download the latest service manual or contact your local dealer or us. Read this manual before repairing the product.

1.2 Service Precautions Safety

Avoid skin contacting with the antenna connector and PCB. Do not reverse the power polarities. If signal input at antenna connector is bigger than 20dBm(100mW), it may cause damage to the radio. Do not turn on the power before the antenna and load connection is completed. Do not use the radio if the antenna has been damaged. Contacting the damaged antenna will cause slightly burning on the skin.

Electromagnetism Interference

It's prohibited to use or repair the radio in the following places: Hospital, health center, air port Any area with a potentially explosive atmosphere (where the air contains gas, dust and smog, etc.), such as the storage or transportation facilities of fuel or chemicals. Any area of dynamite or exploder. It's recommended to avoid using or repairing the radio in the following places: It's recommended to avoid using the radio in a car that is moving. The radio wave might interfere the auto engine and cause it to stop working.

Component Replacement

All the components used in repair service should be supplied by Kirisun. Other components of the same models available on the market are not surely able to use in this product and we do not guarantee the quality of the product using such components. Please fill in a component application forms if you want to apply for any components from Kirisun. The following is one sample form that might be used to apply for any components from Kirisun. Component Application

Parts and Spare Parts Requisition

Radio Model

PT-6500(400

-470MHz)

PT-6500(400

-470MHz)

Comp onent

Field eff-

-ect tube

Triode

Position Mark

Q49

Model/ Specifications

RD01MUS1

2SC5108(Y)

Material Serial number

105-RD01MU-R01

104-SC5108-R01

Qty

1.3 Service

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

Chapter 2 Radio Overview and Function Keys

2.1 Radio Overview

123 456 789 *0#

The functions of the components are as follows: A. LED Indicator Lights red while transmitting; Lights green while receiving. B. Power/Volume Switch Knob Turn clockwise till a click is heard to switch on the radio. Turn counterclockwise till a click is heard to switch off the radio. Rotate to adjust the volume after turning on the radio. C. Channel Selector Rotate to select the channel 1-128. D. Antenna E. Top Button (programmable button) It is recommended to be set as the emergency warning Button. F. Side button 1 (programmable button) G. PTT PUSH-TO-TALK : To make a call, press and hold the PTT button, then speak into the microphone with normal voice. Release the PTT button to receive signals. H. Side button 2 (programmable button) I. Button Return and delete button in the menu. J. Button Select Button. K. Button Select Button. L. Button Enter and Confirm Button. M. Numeric keypad N. Microphone/speaker jacks

PLL-LE

PLL-CLK

PLL-DA

PLL-UL

PLL IC

IC2

QT TCXO

LOOP FILTER

RIPPLE FILTER

VCO

BUFF

Q5 Q4

RF AMP

Q14

ADF4111

MOD

12.8MHz

TCXO

VCO

Q11 RX

BUFF

MCF

51.65MHz

IF SY STEM

CF1

450KHz H

CF2

450KHz F

X3 multiply

AF AMP

TCXO

12.8MHz

AK2346

BPF

RF AMP

BPF

ANT SW

ANT

IC7

MCU

1st Local OSC

D1 D39 D7 D8

Q18

Q19

IC4

IC6

IC9 TDA8541

ANT

ANT SW RF AMP

MCF

51.65MHz

IF SYSTEM

CF1

450KHz H

CF2

450KHz F

X3 multi ply

AK2346

AF AMP

TCXO

12.8MHz

MIC AMPPLL VCOTX AMPPA AMP

RX TX

Chapter 3 Electrocircuit

RF AMP

5T 5R

Q5 Q3

DRIVE

PRE

APC

Q12

ANT SW

LPF

APC CONTROL

IC3

TX/RX SW

RF POWER

APC

BATTARY

7.5V

VCO

ANT

3.1 Frequency Configuration

Figure 3.1 Frequency Structure

This radio adopts the 2nd Mixer, the 1st IF 51.65MHz, the 2nd IF

450kHz. The receiver's first local oscillation is generated by the frequency synthesizer. The second local oscillation adopts the 4th harmonic

51.2MHZ of TCXO. The transmitter signals are generated by frequency synthesizer. The reference frequency of frequency synthesizer is generated by TCXO.

3.2 Receiver (RX) Illustration

PT6500 SERVICE MANUAL

(51.2 MHz) and the 1 IF signal (51.65 MHz) are mixed at IC5 to generate the 2nd IF (450 kHz). After the 2nd IF signal is amplified and its amplitude is limited at IC4, and then filtered at porcelain filter (CF1 or CF2, 450 kHz), IC5 demodulates and sends out audio signals.

The 2 IF filter selector circuit consists of CF1, CF2, D18, D19 and peripheral circuits, when the radio is set to broad band, CF2 is open, CF1 is closed and CF2 functions; when the radio is set to narrow band, CF1 is open, CF2 is closed and CF1 functions.

Squelch Circuit

Demodulation output from IC4 is sent to the noise amplifier in Ic4. After being amplified, noise signal is sent to D21 for further amplification and to D22 for wave checking and then sent to MCU, which determines the noise volume to control the squelch. This voltage is inversely proportional to the input signals.

3.3Transmitter (TX) Illustration Transmitter Power Amplifier

Figure 3.2 Receiver Illustration

The Receiver Front Terminal

Signals from the antenna pass through the RX/TX switch (D1, D39, D7, D8); and then undesirable out-of-band signals will be filtered out at the band pass filter (BPF) consisting of two-stage LC; then signals are amplified at the low noise amplifier (LNA) consisting of Q18 and its peripheral components. The output from the LNA passes the BPF consisting of three-stage LC for filtering and then is sent to the first grade frequency mixer (Q19).

AGC Circuit

The AGC circuit consists of Q17 and its peripheral components. Only when the input signal is too large can the AGC functions to reduce the Q18 plus.

The First Frequency Mixer

After mixing the receiving signals for LNA and the first local oscillation signals from the frequency synthesizer, the 1 IF signals (51.65MHz) are generated.

IF Circuit

Signals of adjacent channel and those out of band of the 1 IF signals are filtered via the crystal filter (XF1).

The 1 IF signals from the crystal filter are amplified at the first IF amplifier (Q20), and then are sent to the IF processing IC (IC4, TA31136). The IF IC consists of the 2 frequency mixer, the 2 local oscillator, IF amplifier, limiter, phase frequency detector, and noise amplifier. The 2 local oscillation is obtained after 12.8MHz signals from X1 are amplified via Q15 and external circuit. The 2nd local oscillation

nd nd

Figure 3.3 Power amplifier and antenna switch schematic diagram

The modulated signals from VCO are amplified at Q2, Q4, Q59, Q5, Q3, and then sent to Q1 for power amplification. Q1 output power: 4W. The Q1 and Q3 gate offset is controlled by APC circuit. Transmitter output power can be controlled conveniently by changing the gateoffset.

APC (Auto Power Control) Circuit

R57, R65 and R66 are the amplifier current checker, IC3A is the sample amplifier of the amplification current; .IC3B is the power comparison amplifier. If the transmitter output power is too big, the amplifier current will increase, IC3A output will mount, IC3B output voltage decrease, the offset voltage added to Q1 and Q3 will decrease, and then the transmitter output power will decrease. Vice versa, such can ensure steady transmitter output power in different working circumstances. MCU changes the input power to IC3B to set the power.

3.4 Frequency Combiner Illustration

Figure 3.4 Frequency Combiner Illustrations

This radio adopts phase locked loop (PLL) type frequency combiner. The frequency combiner consists of the reference oscillator, voltage controlled oscillator (VCO), programmable frequency divider, phase

PT6500 SERVICE MANUAL

pin 7

Q30 HP

Q31

IC1A

HP AMP

IC1B

IC10

HT9172

IC5A IC5BIC5CIC5D AMP LP LP AMP

CTCSS/ DCS

DTMF

AK2346

IC6

IC4 pi n 9

AF AMP

IC9 TDA 8541

pin 20

MIC AMP

MCU

IC7

pin 23

pin6

pin 3

MIC

comparator, and the upper limiting filter. Q6, D2, D4, D5 and D6 constitute the transmitting VCO unit. D9 is the modulating circuit of the transmitting VCO. Q11, D11, D12, D13 and D14 etc. constitute the receiving VCO unit.

IC2 (ADF4111) is the PLL integrated circuit, which can comprise

I the programmable reference frequency divider, programmable frequency divider, phase comparator and charge pump, etc. The upper limiting filter consists of R43 and C96 etc. The frequency reference is provided by X1 (TCXO, 12.8MHz). The frequency reference from TCXO (temperature control crystal oscillator) receives frequency division by the programmable reference frequency divider in IC2 to generate the frequency reference of 5kHz or 6.25kHz (according to the frequency of the channel, controlled by MCU). The oscillation frequency from VCO is sent to IC2, after frequency division by the programmable frequency divider, it is compared with the frequency reference to get the error signal, which is, after wave filtering by the upper limiting filter, sent to VCO to change the oscillation frequency of VCO, which allows the VCO frequency to achieve the set value and the VCO to be locked.Detection of loss of lock: if PLL loses lock, IC2 pin14 outputs low level signal to MCU, which prevents the transmitter from transmitting and generates alert. Q13 and related circuits are used for switching the upper limiting filter.

3.5 Audio Processing Circuit:

pure CTCSS/DCS signals, which are then sent to MCU for processing; the other comes to IC6 pin23, after amplification and wave filtering, one channel is exported from IC6 pin21 (DTMF/2T/5T signals etc.), DTMF/2T/5T signals etc. come through the high pass circuit (sub-audio signals filtered) consisting of Q30 and Q31 etc., DTMF signals come to IC10 (special chip for HT9172 DTMF decoding) for decoding and then sent to MCU for processing, 2T/5T signals are sent to MCU for processing after wave filtering and waveform modification by IC1; the other channel of signals (voice signals) are exported form IC6 pin18 after scrambling, preemphasis, deemphasis and companding and then imported from IC6 pin19 for amortizing and amplification before being exported form IC6 pin20. IC13 is a voice storage chip, which stores voices including channel prompt etc., each time the channel is changed, the speaker will prompt the current channel number by voice. Press the voice prompt key to prompt the current channel number again. Receiver audio signals, voice prompt signals, 2T/5T/DTMF signals, prompt voice signals, emergent alert signals are gathered to be amplified by the audio frequency amplifier IC9 to drive the speaker.

Speaker impedance: 16Ù.

Note: None of the terminals of the speaker can be grounded! The volume of emergent alerts cannot be controlled.

3.6 Power Supply:

The radio is equipped with 7.4V battery as power supply, which directly supply power to transmitter power amplifier circuits (Q1, Q3) and receiver audio power amplifier (IC9), other circuits adopts regulated 5V power supply.

Q40, Q45: 5V low voltage difference, micro power regulator. Q43: 5T switch, controlled by MCU. 5T: Supplies power for the front terminal of the transmitter. Q39: 5R switch, controlled by MCU. 5R: Supplies power for the receiver RF amplification, mixing, IF processing, audio signal processing.. Q44: 5C switch, controlled by MCU. 5C: The 5V power controlled by power saving supplies power for the frequency synthesizer.

Figure 3.5 Audio Processing Diagram

C6 (AK2346) is a special voice processing chip provided with functions like amplification, wave filtering, preemphasis, deemphasis, scrambling, companding and MSK MODEM etc. Most voice processing tasks of the radio are completed by it.

MIC Signal Processing:

Voice signals from MIC are controlled by AGC circuit, and then reach IC24, one group of signals are amplified at IC24B (VOX circuit) and are processed into direct current by D35 and sent to MCU for processing; the other group of circuits are amplified at IC24A and then receive amplification, wave filtering, companding (optional), preemphasis, scrambling and amplitude limit at IC6 pin3, after that, they are exported from IC6 pin7 and sent along with CTCSS/DCS to VCO for modulation. 2T/5T signals are imported from IC6 pin6, and after amplitude limit and amplification, they are exported form IC6 pin7 and sent to VCO for modulation.

Receiver Audio Signal Processing:

Voice signals exported from IC4 are divided into two channels, one comes to the low pass circuit (voice signals filtered) consisting of IC5, etc for amplification and wave filtering to get comparatively

3.7 MCU:

MCU controls the working of each unit of the radio to realize all the radio functions. Connects with the PC Accesses the current channel status data

Controls the PLL to generate receiver and transmitting local

oscillation frequency

Acquires current channel status Controls the LED status indication

Controls the power supply of each location Checks the action of each function key Generates CTCSS signals Generates DCS signals Generates power control signals CTCSS decoding DCS decoding Squelch check and control Controls the content of voice indication

Memorier (E PROM, AT24C256)

Memorizes the radio channel data, CTCSS/DCS data, and other data of function setting and parameter adjustment.

CTCSS/DCS Encoding and Decoding:

PT6500 SERVICE MANUAL

CTCSS/DCS signals generated by MCU (output form pin24 and pin28, PWM wave), are respectively sent to VCO and TCXO for modulation. CTCSS/DCS signals from the receiver are sent to MCU (pin1) for demodulation. MCU determines whether the signals contain the same CTCSS/DCS as that set on the radio and decides whether to turn on the speaker. CTCSS CTCSS(continuous tone control squelch system, sub-audio for abbr.) is a squelch control system modulated on carrier wave with continuous sub-audio frequency as pilot frequency. If a channel is set with CTCSS, only when both the CTCSS of the receiver and that of the transmitter are identical, communication is available, which avoids interference of other signals. This radio is equipped with 39 groups of standard sub-audio frequencies for your selection as shown in Table 1 CTCSS signals are generated by MCU (PWM waveform) and are sent to VCO for modulation via upper limiting filter consisting of RC, which filters high-frequency components over 300Hz. Table 3.1 CTCSS Frequencies

No. Fr q [Hz] No. Frq [Hz] No. Frq [Hz] No. Frq[Hz]

1 67.0 11 94.8 21 131.8 31 2 69.3 12 97.4 22 136.5 32 3 71.9 13 100.0 23 141.3 33 4 74.4 14 103.5 24 146.2 34 5 77.0 15 107.2 25 151.4 35 6 79.7 16 110.9 26 156.7 36 7 82.5 17 114.8 27 162.2 37 8 85.4 18 118.8 28 167.9 38 9 88.5 19 123.0 29 173.8 39

186.2

192.8

203.5

210.7

218.1

225.7

233.6

241.8

250.3

10 91.5 20 127.3 30 179.9

DCS signaling: DCS (Digital code squelch) is a kind of continuous digital code modulated with voice signals on carrier wave to control squelch. If DCS function is enabled, only in case the same DCS code is received can the speaker be turned on so as to avoid interference from useless signals. 83 groups of standard codes (positive and inverse code) are available. See table 2. DCS signals generated by MCU (PWM wave shape) pass the low pass filter to be filtered off the high frequency over 300Hz and then are sent to VCO and TCXO for modulation. VCO modulates the high frequency of DCS signals; TCXO modulates the low frequency of DCS signals. CTCSS/DCS signals from the receiver are sent to MCU for modulation. MCU determines whether the DCS encoding of the receiving signals is identical with that set on the radio and decides whether to turn on the speaker.

Table 3.2 DCS Encoding List

023 1 1 4 1 7 4 315 445 631 025 115 2 0 5 331 464 632 026 1 1 6 2 2 3 343 465 654 031 1 2 5 2 2 6 346 466 662 032 1 3 1 2 4 3 351 503 664 043 1 3 2 2 4 4 364 506 703

047 134 245 365 516 712 051 143 251 371 532 723 054 152 261 411 546 731 065 155 263 412 565 732 071 156 265 413 606 734 072 162 271 423 612 743 073 165 306 431 624 754 074 172 311 432 627

3.8 Semiconductor Components

MCU Description Table 3.3 Microprocessor (M30620) Port Description

I/O

PIN 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

27 28 29 30 31 32 33 34

36 37 38 39 40

Port Name VCCN TONEO TONEI E-SDA E-SCL C-BYTE C-CNVSS SHIFT E-TEST

RESET XOUT VSS XIN VCC CMMI INTO A-RDT A-TCLK A-SCLK A-DI/O A-TDATA A-DIR NC QT VCO PLL-LP

PC/TV

NC QT TCXO C-TXD1 C-RXD1 C-CLK1 NC ICA PABC

APC2 SW

APC1 SW RX SW TX SW C-HOLD PLL-UL

Function

PLL frequency reference adjustment

2T/5T/DTMF/BEEP signals inout

2T/5 signals input

EEPROM data cable

EEPROM clock cable

Grounding

Clock offset H: Clock offset

EEPROM write-protection pin H: Unwriteable L: Writeable

Reset pin

Clock output pin

Grounding

Clock input pin

Connects to 5V power supply

I O O O O O O

O O

O O O

Grounding AC dump detecting pin AK2346 control pin AK2346 control pin AK2346 control pin AK2346 control pin AK2346 control pin AK2346 control pin Blank CTCSS/DCS output pin (to VCO modulation) Phase locked loop upper limiting filter switch H: switching over medium frequency points Power control or receiver band pass tuning voltage control Blank CTCSS/DCS output pin (to TCXO modulation) Serial data output, communicates with PC Serial data input, communicates with PC Grounding Blank

Upstage power amplifier power supply control H: Transmitting power amplifier control switch H:transmission power amplifier control switch L:transmission Receiver VCO power switch L: Receiving Transmission VCO power switch L:transmitting Grounding Phase locked loop unlocked detection pin

PT6500 SERVICE MANUAL

41 42 43 44 45 46 47 48 49 50 51 52 53

54 55

56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

PLL-STB PLL-DATA PLL-CLK C-VCC MAX AF SW GREEN RED 5TC 5RC 5CC W/N N W/N W AFCO

RX MUTE W-BUSY

W-DATA W-SCLK W-MUTE S-SCK ACC S-SI VSS S-SO S-CS

PTT H-D3 H-D2 H-D1 H-D0 H-DV DN UP L-AO L-AO L-AO L-AO L-AO K1 K1 K1 K1 K1 K1 K1 K1 LAMP BATT RSSI BUSY VOX QT/DQT IN PF AVSS MANDOWN VREF AVCC VOX SW MIC MUTE HPF PC

Phase locked loop enabled pin

Phase locked loop data pin

Phase locked loop clock pin

Connects the power supply

Max volume control L: Max. volume

Green indicator H: Lights on

Red indicator H: Lights on

5T control switch L: 5V for 5T

5R control switch L: 5V for 5R

Power-saving control switch L: 5V for 5C

Band selection-Narrow band H: narrow band

Band selection-Wide band H: wide band

Audio power amplifier control H: power amplifier operates

Receives mute control L: mute

Voice reporting chip busy, signal detection H: reporting

Voice reporting data signals

Voice reporting clock signals

Voice reporting mute control L: mute

Connects 5V power supply

Grounding

PTT key input L: transmitting

DTMF data input

Encoding switch signals

LCD control signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

I/O

Keypad signals

Backlight control signals H: lights on

Battery voltage detection

Receives field strength indication detection

Noise level detection

Acoustic control level detection

CTCSS/DCS signal input

Customized keypad input

Grounding

MANDOWN signal input L: valid

Connects to the power supply

VOX power control L: VOX set H: VOX not set

MIC mute switch L: Mute

High pass power control L: Scrambling set H: Scrambling not set

3.4Semiconductor Function Description

Type

Position IC10 IC11 IC14 IC2 IC3 IC4

IC5 IC6 IC7 IC8

IC9 Q1 Q10

Q11 Q12 Q12 Q13 Q14 Q15 Q16 Q17 Q18 Q19 Q2 Q20 Q21 Q22 Q23 Q24 Q25 Q26 Q29 Q3 Q30 Q31 Q32 Q33 Q34 Q35 Q36 Q37 Q38 Q39 Q4 Q40 Q41 Q42 Q43 Q44 Q45 Q47 Q48 Q49 Q5 Q51 Q6 Q7 Q8 Q9

Ht9172 PST9140NR TC75W51FU ADF4111 NJM2904 Ta31136

NJM2902 AK2346 M30620 AT24C256

TDA8541 RQA0002 DTC144EUA

2SK508NV DTA144EE DTA144EE 2SC4116 2SC4617 2SC5108 DTC144EE 2SK1829 3SK318 3SK318 2SC5108 2SC5108 2SC4617 DTC144EE DTC144EE DTC144EE DTA144EE DTA123JE 2SK1824 RD01MUS1 2SC4617 2SC4617 DTC144EE 2SK1824 2SK1824 DTC144EE DTA144EE 2SK1824 2SA1586 ST2301 2SC5108 XC6024B502MR 2SC4116 DTC144EE ST2301 DTA123JE XC6024B502MR 2SA1586 ST2302 2SC5108 2SC3356 2SK1824 2SK508NV DTA143TE 2SC5108 DTA143TE

Function Description DTMF decoding chip MCU reset circuit MIC amplification, amplitude limit and filtering Frequency combiner APC, voltage comparison, driving Receiver 2 local oscillation, 2 IF amplification,

nd nd

Amplitude limit, demodulation, noise amplification Receiver demodulation signal amplification, filtering Audio processing chip MCU

E PROM, storage channel frequency data, function setting parameters, debugging status parameters

Receiver's audio power amplifier Remitter's upstage power amplifier APC control switch Receives VCO oscillation circuit APC output switch APC control switch PLL low pass switch VCO power filter Receiver's 2 local oscillation doubling circuit

APC control switch Receiver's HF amplification gain control switch Receiver's HF amplification

1 frequency mixer VCO buffer amplifier

1 IF amplifier Receiver's noise amplifier Red LED drive Wide and narrow band noise switch Green LED drive Wide and narrow band frequency discrimination switch 2T high pass filter control switch 2T high pass filter control switch Transmitter power amplifier pushing 2T high pass filter circuit 2T high pass filter circuit Beat frequency control switch Receiver's mute switch Receiver's audio output switch, off upon emergent alert. Audio power amplifier control switch MIC amplification unit power switch Voice prompt switch External PTT detection switch 5R switch VCO buffer amplifier 5V regulated voltage output MIC AGC control switch External PTT detection switch 5T switch 5C switch 5V regulated voltage output MIC AGC control switch External horn control switch Transmitter's 1st amplification Transmitter's 2 amplification

Receiver's audio output switch, on upon emergent alert. Remitter's VCO oscillation circuit Remitter's VCO control switch VCO buffer amplifier Receiver's VCO control switch

PT6500 SERVICE MANUAL

Table 3.5 Diode Function Description

Position D1 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D2 D21 D22 D23 D26 D27 D28 D28 D29 D3 D30 D31 D35 D36 D37 D39 D4 D40 D5 D6 D7 D9

Type HVC131 MA2S111 HVC376 HVC376 HVC376 HVC376 HZU5ALL MA2S111 HSC277 DAN222 DAN222 HVC376 HVC355B MA742 HVC355B LED green HVC376B LED red HVC376B HVC376B HSC277 HVC376B LED green MA742 MA742 MA742 HVC131 HVC376 HVC376B HVC376 HVC376 HSC277 1SV278

Function Description Transmitter antenna switch diode Loss of lock detection diode Receiver's VCO oscillation variode Receiver's VCO oscillation variode Receiver's VCO oscillation variode Receiver's VCO oscillation variode APC output voltage limiting diode VCO power filtering acceleration diode VCO output switch Receiver's 2 IF filter band switch Receiver's 2 IF filter band switch Remitter's VCO oscillation variode Receiver's band pass filter oscillation variode Noise demodulation Receiver band pass filter oscillation variode Receiving indication Receiver band pass filter variode Transmitting indication Receiver band pass filter variode Receiver band pass filter variode VCO output switch Receiver band pass filter variode Receiving indication VOX detection diode MIC AGC detection diode MIC AGC detection diode Transmitter's antenna switch diode Transmitter's VCO oscillation variode Receiver's band pass filter variode Transmitter's VCO oscillation variode Transmitter's VCO oscillation variode Antenna switch Remitter's VCO modulation diode

Table 3.6: Features of XF1 Crystal Filter

Item Nominal center frequency Transmitting bandwidth 40dB Barrage bandwidth Pulse Insertion loss Guarantee attenuation Terminal resistance

Specified Value

51.65MHz

7.5kHz or bigger within 3dB

20.0kHz or smaller

1.0dB or smaller

3.0dB or smaller 80dB or bigger within fo-910kHz 330

Table 3.7 CF1 LTWC450H Features

Item Nominal center frequency 6dB bandwidth

50dB bandwidth Pulse Insertion loss

Guarantee attenuation Terminal resistance

Specified Value 450kHz

3.0kHz or bigger

9.5kHz or smaller

2.0dB or smaller within f0 4kHz

6.0dB or smaller

47.0dB or bigger within f0 100kHz

1.5k

Table 3.8 CF1 LTWC450F Features

Item Nominal center frequency 6dB bandwidth

50dB bandwidth Pulse Insertion loss

Guarantee attenuation Terminal resistance

Specified Value 450kHz

6.0kHz or bigger

12.5kHz or smaller

2.0dB or smaller within f0 4kHz

6.0dB or smaller

47.0dB or bigger within f0 100kHz

1.5k

Chapter 4 Function Description and Parameter Setting

4.1

Major Functions

4.1.1 128 channels

The radio stores 128 channels and can allocate there channels in 8 different zones Zone 0 cannot be programmed and includes all channels

4.1.2

There are 8 zones numbered from Except Zone0

8 Zones

0~7.

all other zones can be freely allocated with up to 16 channels.

Zone0 includes all channels and cannot be programmed. Only when the previous zone is allocated with at least 1 channel can the following zone be allocated.

4.1.3 Channel scanning (this feature can be disabled by programming software)

There are 16 scanning lists, each of which can be allocated with up to 16 channels, which can be from the same or different channels. In channel setting, you can select a scanning list for the channel. If the channel is chosen by using the channel selection key, the chosen scanning list for the channel can be started by the programmable key set to scanning or Manu operation. a. Activate the scanning function by pressing the key set as the

Scan function or Manu operation to scan the specified scanning list. When scanning, the radio will search signals of each channel till signals are found, if the time delay between the disappearance of signals and the resumption of scanning is set, if any signal is received during the time delay, the radio will still stay in this channel. Note: The current channel must be provided with a scanning list or it cannot be activated. Scanning is available only when there're at least 2 channels programmed in the scanning list and the scanning is valid. b. Revert channel (the transmitting channel when scanning) during the scanning set by the dealer has the following options: In the Scan mode, the radio can be set as to return to a specified channel when pressing the [PTT] key. With this function, the radio can be customized so as to meet the requirements of the user when using the scanning function. Revert channel has the following types: Fixed channel ,

Selected channel , Selected+Current Channel , Priority 1+ Current Channel , Priority 2 + Current Channel , Priority 1 and Priority channel 2 . In all cases, the user can manually select one channel for transmitting. (This will resume the revert channel to the selected channel) Fixed channel: The channel specified for programming. Selected channel: The channel selected by the scanning selector

PT6500 SERVICE MANUAL

knob. Selected + current channel: The channel for holding call when receiving signals or the channel selected by the channel selection knob.

Priority 1 + current channel: The channel for Priority channel 1 or for holding call when receiving signals. Priority 2 + current channel: The channel for Priority channel 2 or for holding call when receiving signals..

Priority channel 1 Priority channel 2 Priority channels can be set at Fixed or Selected .

4.1.4 Sub-audio (QT) and Digital Sub-Audio (DQT)

The dealer may have programmed QT or DQT signals in channels of the radio, which may ignore calls from other irrelevant stations in the same channel. If a certain channel is provided with QT or DQT signals, only when the correct QT or DQT signals are received can the squelch be activated. Similarly, only when the QT/DQT signals are in accordance with your radio can the signals you transmitted by heard.

4.1.5 TOT Transmitting Time Limit

TOT timer:

1. Time-out timer can prevent any caller from occupying one certain channel for an extended period of the time.

2. The radio is set with a continuously transmitting limit. If the radio is continuously transmitting longer than the time preset by the dealer, the radio will stop transmitting and warning b. TOT forbidden period:

1. A period in which the radio is forbidden to transmit after its overtime activity.

2. During the period, if the PTT key is pressed, there will be a

warning tone, and

c. TOT pre-warning:

1. The pre-warning will sound before the TOT action.

2. After the sound of the warning, the timer will take action when the transmitting time has gone beyond the limit. d. TOT reset:

1. The time delay from releasing the PTT key to the resetting of the timer is limited.

countdown will go on if the time after releasing the PTT key

2. The is shorter than the reset time.

4.1.6 Auto Power Saving

The dealer can set the power-saving mode of the battery by programming. If this function is enabled, 10 seconds after no signal is received or no operation is carried out, the radio will be in the power-saving mode. When any signal is received or any operation is carried out, the radio can automatically quit this mode. Power-saving modes: 1: 1, 1: 2, 1: 4 and off. Setting the power-saving function of a battery can reduce the power consumption of the battery.

4.1.7 Low Power Warning

When the battery power appears low, the indicator flashes. If the battery power is lower than the preset value during transmitting, the status indicator flashes red. When the speaker sounds warning tone,

transmitting is forbidden.

the radio will stop transmitting.

4.1.8 Monitoring When receiving a signal which doesn't matches the signaling, the mute circuit will prevent the speaker from producing any sound. Press the MONI key to cut off the squelch control circuit, and you will hear noise from speaker (no mater whether there are signals). Such operation is very useful when you want to adjust voice volume or receive weak signals (to avoid voice intermittence when in weak signals). When you press the MONI key, the green indicator lights, and the radio is in the state of monitoring.

4.1.9 Busy Channel Lockout

If busy channel lockout has been activated, transmitting signals is prohibited on the busy channel. If you press the PTT to transmit on the busy channel, the speaker will sound busy channel lockout tone, and you cannot transmit signals. Options:

Carrier wave: If there's carrier wave in the channel, transmitting

is prohibited.

Carrier wave + QT/DQT: If there's carrier wave in the channel

while the QT/DQT matches, transmitting is allowed.

4.1.10 2TONE Signaling

The dealer may set this function at enabled or disabled by programming.

2 Tone Decoding

When the radio receives correct 2-tone signals, it will operate according to the decoding call response set by the dealer, when the orange LED will flash and sound the decoding tone you selected.

2 Tone Encoding

When you press the programmable keys programmed at Call1 ,

Call2 , Call3 or Call4 , and the keys are provided with

corresponding 2 tone signaling sequence, 2-tone signaling will be transmitted. This function should be set by the dealer by programming. Or you can select the 2-tone signaling sequence you want to call from the call list and press PTT twice to transmit 2-tone sequences.

4.1.11 DTMF Signaling

The dealer may set this function at enabled or disabled by programming.

DTMF Decoding

After the radio receives the correct DTMF signaling, it will operate the according to the decoding call response set by the dealer. The orange LED will flash and transmit the decoding tone you selected.

DTMF Encoding

When you press the programmable keys programmed at Call1 ,

Call2 , Call3 or Call4 , and the keys are provided with

corresponding DTMF signaling sequence, DTMF signaling will be transmitted. This function should be set by the dealer by programming. Or you can select the DTMF signaling sequence you want to call from the call list and press PTT twice to transmit DTMF sequences.

4.1.12 Call list

The 2-tone list and DTMF list being set will be automatically added to the call list. Enter the Call list menu by menu operation and select the sequence you want to call and press PTT for calling.

4.1.13 PC Programming

You can program the radio functions and adjust some parameters by PC programming software KSP6500.

PT6500 SERVICE MANUAL

3. Press / , and Companding is shown,

4. Press to select Companding ,

5. Select On or OFF by / , press to confirm.

4.1.14 Wired Clone The radio can transfer the stored data to another radio of the same mode by a specified cable.

4.1.15 Squelch Level Selection

The purpose of the squelch is to mute the speaker noise when no signals are received or the signals are weak. When the squelch is activated, you can hear noise from the speaker; when the squelch is inactivated, you will not hear noise form the speaker. Selecting the squelch level is to select which the signal strength level is strong enough to enable the squelch or weak enough to disable the squelch. Over high squelch level will make the radio unable to receive signals efficiently when signals are weak; over low squelch level will make the radio communication affected by noise or other irrelevant signals. The squelch level has 0-9 options.

4.1.16 Beep Tone

This option controls power on tone, channel busy tone and TOT tone.

4.2The operations are as follows: Set scanning:

1. As shown: in CH 1 , press , then Utilities

is shown;

2. Press , then Scan is shown;

3. Press , then enter selecting Scan ;

4. Select Scan On or Scan OFF with / , then press to

confirm it.

If can not enter that way, you have to set in PC communications;

Set back light:

1. As shown: in CH 1 , press , Utilities is shown.

2. Press to enter select mode,

3. Press / , and Back Light is shown,

4. Press to select On or OFF ,

5. Select On or OFF with / , press to confirm.

Set the squelch level:

1. As shown: in CH 1 , press , Utilities is shown.

2. Press to enter select mode,

3. Press / , then Squelch Level is shown,

4. Press to select squelch level, e.g., Level 0

5. Change the squelch level with / , then press to

confirm.

Set power level (high/middle/low):

1. As shown: in CH 1 , press , utilities is shown.

2. Press to enter select mode,

3. Press / , then Power Level is shown,

4. Press to select, e.g., Power Low ,

5. Change the power level with / , then press to

confirm.

Set Companding

1 As shown: in CH 1 , press , Utilities is shown.

2. Press to enter select mode,

Set saving

1 As shown: in CH 1 , press , Utilities is shown.

2. Press to enter select mode,

3. Press / , and Save is shown,

4. Press to select Save 1 4 ,

5. Chang the save percentage with / , press to

confirm.

Set scrambler

1 As shown: in CH 1 , press , Utilities is

shown.

2. Press to enter select mode,

3. Press / , and Scrambler is shown,

4. Press to select, e.g., Scrambler OFF ,

5. Select On or OFF by / , press to confirm.

Set key tone

1 As shown: in CH 1 , press , Utilities is shown.

2. Press to enter select mode,

3. Press / , and Key Tone is shown,

4. Press to select OFF or On ,

5. Select On or OFF with / , press to confirm.

Set Rptr/Talkarnd

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Rptr/Talkarnd is shown,

3. Press to select the mode,

4. Select Repeater Mode or Talkarnd mode with / ,

Press to confirm.

Set speak On mode

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Speak Mode is shown,

3. Press to select the speak on mode,

4. Select with / , press to confirm.

Set zone mode

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Zone Edit is shown,

3. Press to select the zone mode,

4. Select Zone No with / , press to confirm.

Set call list

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Call is shown,

3. Press to select the call list,

4. Select with / , press PTT to transmit.

Set Rx FRQ

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Ch Edit is shown,

3. Press to select

4. Press , is shown, enter the set of Rx FRQ,

Ch alias CHANNEL 1

Rx FRQ

401.660000

PT6500 SERVICE MANUAL

5 Set the Rx FRQ value with the keypad,

6. Press to delete, and press to confirm.

Set Tx FRQ

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Ch Edit is shown,

3. Press to select

4. Press , is shown, enter the set of Tx FRQ,

Ch alias CHANNEL 1

Tx FRQ

401.660000

5 Set the Tx FRQ value with the keypad,

6. Press to delete, and press to confirm.

Set Rx CTCSS/DCS

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Ch Edit is shown,

3. Press to select

Ch alias

CHANNEL 1

4. Press , is shown, enter the set of Rx

Rx CTCSS

401.660000

CTCSS/DCS FRQ 5 Set the Rx FRQ value with the keypad,

6. Press to delete, and press to confirm.

7. Stands for the radix point, press to convert among CTCSS DCS and reverse DCS.

Set Tx CTCSS/DCS

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Ch Edit is shown,

3. Press to select

4. Press , is shown, enter the set of Tx

Ch alias CHANNEL 1

Tx CTCSS XXXX

CTCSS/DCS FRQ,

5. Set the Tx FRQ value with the keypad,

6. Press to delete, and press to confirm.

7. Stands for the radix point, press to convert among CTCSS DCS and reverse DCS.

Set contact list

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Contact List is shown,

3. Press to select,

4. Select the address cable of the call to be made with / ,

5 Check the alias or address code by turning the knob,

6. Key in the address code of the person you are calling,

7. Press to transmit the current contact list.

Set status:

1 As shown: in CH 1 , press to enter select mode,

2. Press / , and Status is shown,

3. Press to select,

4.Select the needed status with / ,

5. Check the alias or address code of the status by turning the knob,

6. Press to select the current status.

PROGRAMMABLE BUTTON FUNCTIONS

The dealer can program the 2 Side Buttons and 1 top Button with one of the following auxiliary functions. None OFF ( do not set the functions ) Scan lone working Contact list Power selector Show or hide the channel alias Busy Channel Lockout (BCL) Key lock Squelch level selector Companding Scrambler Battery power Zone Monitoring Cancel Squelch Emergency Alert Back light Rptr/Talkarnd Express select channel 1 Express select channel 2 Call 1, 2, 3 or 4 Channel lock Adjust display contrast

Notes:

Programmable key can be set as short press or long press. The following functions can be programmed by the dealer:

None

Set of None

Scan

Press the button set as Scan to start scanning. When carrier wave scan is enabled. While in scanning, the radio checks every channel (any channel in any zone) and stops on the channel on which a signal is detected until that signal disappears. If interval between signal disappearing and continuing scanning has been preset, the radio will remain on that channel. Only when there are two channels added in the scan list and the scan function has been activated, the radio can start scanning. start scanning. It can be set as: short press: scan, long press OFF.

1. Press the programmable key once to start scanning (it should be effective in the channel scan list).

2. Press once to quit.

Notes: there are 8 zones from 0 (default zone) to 7; and there can be as

many as 128 channels in each zone. There are totally 16 scan lists; you can select any scan list. Every scan list can scan any channels in different zones (16 channels to the most).

Lone working

Press the button set as lone working to start lone working. This mode is to ensure the safety of the user while using the transceiver separately.

It can be set as: short press : personal working, long press OFF.

1. Press the programmable key once to start personal working;

PT6500 SERVICE MANUAL

start scanning. It can be set as: short press: scan, long press OFF.

1. Press the programmable key once to start scanning (it should be effective in the channel scan list).

2. Press once to quit.

Notes: there are 8 zones from 0 (default zone) to 7; and there can be as

many as 128 channels in each zone. There are totally 16 scan lists;

You can set the programmable keys with the key set in PC software, as follows:

It can be set as: short press: display channel frequency, channel alias and channel No., long press OFF.

1. Press the key once, display the channel alias, e.g.: CHANNEL 1 ,

2. Press it again, the channel frequency will be shown, e.g.:

401.66500

you can select any scan list. Every scan list can scan any channels in different zones (16 channels to the most).

3. Press it a third time the channel alias will be shown, e.g.: CH 1

Lone working

Press the button set as lone working to start lone working. This mode is to ensure the safety of the user while using the transceiver separately.

It can be set as: short press : personal working, long press OFF.

It can be set as: short press: Zone, long press OFF.

1. Press the key once, Zone No will be shown,

2. Select zone No. with / ,

3. Press to confirm.

1. Press the programmable key once to start personal working;

2. Press once again to quit.

Notes:

It can be set as: short press: channel lock, long press OFF.

1. Press the key once to perform channel lock, then you can not

The lone working is connected with the automotive checking in the programming software, and will be effective when both are set.

Contact list

Enter the Contact list quickly:

choose the channel, CHANNEL 1 will be shown.

2. Press it again to cancel channel lock, CHANNEL 1 will be shown.

It can be set as: short press: contact list, long press OFF.

1. Press the programmable key once to enter the contact list Call

2. Press again to enter the content interface of the contact list,

3. Select the options in the contact list with /

4. Press PTT to transmit

5. Press to quit.

It can be set as: short press: instantly select channel 1, long

4.3 Parameter Setting (PC Mode)

The radio parameters have been programmed in the factory. The user can program the radio parameters such as working frequency, channels, QT/ DQT, auto scanning. We designed a user-friendly and convenient Chinese/English programming software KSP6500 for users to set parameters on the radio. The programming steps are as follows:

press OFF.

1. Press the key once to instantaneously select the channel, e.g. CHANNEL 15

2. Press again to return.

a Install the programming software KSP6500. b Connect the radio to the computer serial port with the specified programming cable (KSPL-09), See Figure 4.1.

Call 1, 2, 3, or 4

Press the side button programmed as Call 1, 2, 3, or 4 to transmit the specified code stored in the contact list. Release Call button, and speak to the microphone to call with the PTT button still pressed.

It can be set as: short press: Call 1, long press OFF.

1. Press the key once to make a call (within the current channel), and will quit automatically after the call.

Channel Annunciation

Select or delete the voice annunciation function.

Adjust display contrast

You can adjust the display contrast as per your need.

It can be set as: short press: display contrast, long press OFF.

1. Press the key once, Contrast will be shown,

2. Press / to select the character you need,

3. Press to confirm.

Manual programming

The dealer can open the manual programming rights of channel frequency set, CTCSS DCS. Basic operations of programmable keys:

RS232serial port

Programming cable

KSPL09

Figure4-1

c Turn on the computer power. d Turn on the radio power. e Click the KSP65000 program to run the programming software. f Click on Read in the KSP65000 main menu to read the radio parameters into the computer; click on Write to transfer the PC programming parameters into the radio. g You can program the following parameters with the KSP6500 software:

1) The RX and TX frequency of each channel;

2) The receiving and transmitting signaling of each channel;

3) Busy channel lockout option;

4) TOT;

5) Squelch level option;

6) Power saving option;

7) 2-tone setting;

8) DTMF setting;

9) Beep tone option;

PT6500 SERVICE MANUAL

10) Monitor mode option;

11) Scan mode option;

12) Scan the reverting channel option;

13) Scan the priority channel selection;

14) Call list setting;

15) Customized tones;

For more details, please refer to the Help document of KSP6500 software. Note: 1. Turn off the radio before connection.

2. When the radio is being read data, the indicator lights orange and it's prohibited to press the PTT button; when the radio is being written data, the indicator lights orange.

3. Before the first time editing, you should read data form the radio and backup the data. 4 If the radio cannot work normally after being written in with the editing data, open the data backup and rewrite the backup into the radio. 5 Model information is important radio data and is prohibited to modify.

4.4 Computer Test Mode:

Connect the radio to the radio communication port with the specified programming cable (KSPL-09). See Figure 4.1.

Warning: Before enter the computer test mode, connect a HF load of 50Ù to the radio antenna connector or connect the radio to a comprehensive test device.

Under the computer test mode, you can modify the following parameters with KSP6500 programming

software:

1) Frequency stability

2) Transmitting H/I/L power;

3) Max audio frequency deviation;

4) DTMF frequency deviation;

5) MSK frequency deviation;

6) QT frequency deviation;

7) DQT balancing;

8) DQT frequency deviation;

9) TX low voltage;

10) Receiving sensitivity;

11) SQL 1/9(OPEN/SQUELCH) ;

12) Max RX volume

13) VOX plus

14) RX low voltage

Chapter 5 Service Assemble and Disassemble

The radio is precision communication equipment. Please be careful when assemble or disassemble the radio during service.

5.1 Installing/Removing the battery pack

To install the battery pack:

Match the 3 bulges of the battery pack with the corresponding at the rear

of the transceiver.

bottom

slots

Figure 5.1-1

Removing the Battery Pack

To remove the battery pack, use your thumb to press the belt clip, one side of your index finger to press the release button and then pull the battery away from the radio.

5.2 INSTALLING THE ANTENNA Screw the antenna into the connector at the top of the transceiver by holding the Button of the antenna and turn it clockwise until secure.

5. 3 INSTALLING THE BELT CLIP Match the grooves of the belt clip with those on the rear of the battery. Then press belt clip downwards to lock it in place. Push the card by inserting your nail or tool into the groove at the upper part of the clip to remove the belt clip.

5. 4 Removing the Casing from the

Chassis

1 Remove the antenna and two knobs; 2 Remove the two knob screws and a antenna head screw; 3 Remove the two inner hexangular aluminum alloy socket head screw fixed at the bottom; 4 Insert the slotted screwdriver into the groove at the bottom of the chassis and apply force upwards to release the aluminum alloy frame; and then hold the aluminum alloy frame and draw it out properly to remove it out of the casing; 5 Plug the PCB winding displacement connecting the main PCB and the keyboard from the main PCB. As shown in Figure 5.4-1

5. 5 Removing the main board from the aluminum alloy frame

1 Remove the waterproof washer at the top; 2 Remove the screws of the PTT keypad and then remove the PTT keypad; 3 Remove the screws on the PCB; 4 Melt the solder at the antenna point with an electric soldering iron and take off the main board. As shown in Figure 5.4-1

5.6 Removing the keypad from the surface casing

Remove the screws of the keypad to detach the keypad from the surface casing. As shown in Figure 5.6-1

Figure 5.1-2

Figure 5.2-1

Figure 5.3-1

Figure 5.4-1

Figure 5.5-1

Figure 5.6-1

5.7 Exploded View

PT6500 SERVICE MANUAL

ITEM

PART NUMBER

201-006500-R02

201-006500-R05

202-006500-R01

204-006800-R01

4 5

201-006500-R09

203-000558-R11

7 8 9

201-006500-R04

201-006500-R03

203-006800-R26

305-108020-R01

13 14

201-006500-R07

204-003208-R02

204-003208-R07

121-100000-R17 SPEAKER

18 19

302-20060G-R01

301-20040G-R01

202-003208-R07 SPACE TRASCALENT

203-006500-R06

COVER PTT KEY KEY PTT

RUBBER KEY PTT

LABEL LCD LENS LABEL LOGO

LENS LED NUT ANTENNA ANTENNA

KNOB CHANNEL

KNOB VOLUME

SPRING PLATE KNOB

NUT KNOB

CASE FRONT201-006500-R01

COVER EARPHONE SCREW EARPHONE COVER304-30040G-R01

WATERPROOF NET SPEAKER CUSHION SPEAKER

CUSHION SPACE SPEAKER204-006200-R09 PCB ASSEBIED FUNCTION KEY

SCREW

.. SCREW,M2X4

PCB ASSEBIED FUNCTION KEY

DESCRIPTION

6 0

M20X

PTT KEYMETALDOME

QTY.

1 1 1

1 1

2 2 1

1 1 1

1 1

ITEM

204-006500-R02

27 28

203-000558-R07

202-006500-R03 203-006500-R01

30 31

204-006800-R11

202-006500-R02 202-006500-R05

301-20030G-R01

203-006500-R04 202-000558-R08

301-20080G-R02

302-17040G-R01

203-006500-R02

201-006500-R06

204-006200-R04

120-400000-R13

102-6800CN-R01

203-006500-R03

202-006500-R04

204-006800-R12

202-000558-R09

204-006800-R06

204-006500-R01

201-006500-R08

PART NUMBER

DESCRIPTION

SPACE EARPHONE PCB ASSEMBIEDPTT BASE ANTENNA WATERPROOF PART TOP CASE AL

LABEL

WATERPROOF LOOP MAIN WATERPROOF PART POSITIVE BKT

SCREW M2X3.0

SPRING PLATE POSIT.AND NEGAT. RUBBER CUSHION SCREW,M2X8

SCREW, 1.7x4.0

PLATE POSITIVE

BKT POSITIVE

CUSHION LINE

LCM

METAL DOME FUNCTION KEY RUBBER KEY FUNCTION

LABBEL CASE FRONT BOTTOM COVER MIC

CUSHION MIC CUSHION LCD LENS

LENS LCD

QTY.

1 1

1 1 1

1 1

+ 30 hidden pages

Kirisun PT6500 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual