Kirisun PT8000 User manual

PT8000 Service Manual
Dangerous!
Do not connect the AC power or DC power over 18V
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 mobile
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 KSP8000 software.
Unauthorized Duplication of KSP8000 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 Unpacking, Checking and Installation....................................... 1
Chapter 3 External View and Functional Keys........................................... 2
Chapter 4 Circuit Description .................................................................... 3
Chapter 5 Mode Introduction ..................................................................... 8
Chapter 6 Disassembly for Maintenance.................................................. 10
Chapter 7 Adjustment............................................................................... 11
Chapter 8 Specifications .......................................................................... 15
Chapter 9 Troubleshooting....................................................................... 15
Appendix 1 Abbreviations........................................................................ 16
Appendix 2 Electronic Parts List.............................................................. 16
Appendix 3 Structural Parts List .............................................................. 20
Appendix 4 Accessories ........................................................................... 23
Figure 1 PT8000 Block Diagram ............................................................. 24
Figure 2 PT8000 Main Board Schematic Circuit Diagram ...................... 25
Figure 3 PT8000 Main Board Top Layer Position Mark Diagram ........... 26
Figure 4 PT8000 Main Board Bottom Layer Position Mark Diagram ..... 27
Figure 5 PT8000 Keyboard Schematic Circuit Diagram.......................... 28
Figure 6 PT8000 Keyboard Top Layer Position Mark Diagram .............. 29
Figure 7 PT8000 Keyboard Bottom Layer Position Mark Diagram......... 30

PT8000 Service Manual
1
Chapter 1 Overview
1.1 Introduction
This manual applies to the service and maintenance of PT8000
series of mobile 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 to download the latest service manual or contact
your local dealer or us.
Please read this manual carefully before repairing the product.
1.2 Service Attentions
* Safety
Do not contact the antenna connector or PCB with your skin
directly.
Do not reverse the battery polarity.
It may cause harm to the radio if signal input on the antenna
connector is larger than 20dBm (100mW).
Do not turn on the radio before the antenna or load connection
is completed.
Do not touch the antenna while the mobile radio is
transmitting, otherwise, it may cause light burning on skin.
* Explosive Atmosphere
It’s prohibited to use or repair the radio in the following
places:
Hospital, health center, airport
Any area with a potentially explosive atmosphere (e.g. orlop
deck of the ship, storage or transportation equipment for fuel and
chemical etc.)
Any place near blasting sites or area with electrical blasting
cap.
* Replacement Parts
All components used for repair should be supplied by Kirisun.
Components of the same type available on the market are not
surely able to be used in this product and we do not guarantee the
quality of the product using such components.
If you want to apply for any component from Kirisun, please
fill in an application form as below.
Component Application Form
Radio
Model Component Position Mark
Model/
Specifications Part No. Qty
PT8000-02 FET Q3 RD01MUS1 105-RD01MU-R01 1
PT8000-02 Triode Q49 2SC5108（Y）104-SC5108-001 1
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 be not available.
* No valid warranty card or original invoice.
* Malfunction caused by disassembling, repairing or
reconstructing the radio by the 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 Unpacking, Checking and
Installation
2.1 Unpacking and Checking
Please carefully check the radio in the package and the
supplied accessories listed in the following table before using. If
any article is found lost or damaged, please contact the distributor
without delay.
No. Accessories Qty
1 Mounting Bracket 1
2 Power Cable 1
3 Hand Microphone 1
4 Microphone Hanger 1
5 M4*10 SEMS Screw 4
6 M4*16 Self-tapping Screw 2
7 M5*16 Self-tapping Screw 4
8 Instruction Manual 1
Mounting Bracket
DC Power Cable
Hand Microphone
Microphone Hanger
M4*10 SEMS Screw
M4*16 / M5*16
Self-tapping Screw

PT8000 Service Manual
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2.2 Licenses
It is requested by rules that each radio installation site (for
mobile station or base station) should be provided with a license.
The license carrier should guarantee that the Tx power, frequency
and deviation comply with the license requirements. Transmission
adjustment can only be conducted by license-authorized
technicians. Installation or operation of the radio does not need a
license.
2.3 Check before Installation
Every radio has been adjusted and checked before shipment.
Before installation, it’s better to check if the radio’s
transmission and receiving are normal to make sure its proper
operation.
The test should be performed with all cables and accessories
correctly connected.
Tx frequency, deviation, power output, Rx sensitivity, squelch,
audio output, and signaling operation should be checked.
2.4 Installation
1) Preparation
Check the vehicle and decide how and where to install the
radio antenna and accessories. Make sure that the cable will not be
extruded. And pay attention to the heat dissipation of the radio to
avoid overheating.
2) Antenna
The best position for the antenna is in the center of an open
and flat conduction region, usually the center of the vehicle roof
or the cover of the luggage trunk. Connect one end of the earth
wire to the cover of the luggage trunk and the other end to the car
outer shell so that the cover of the luggage trunk is grounded.
3) Connection of Power Cable
* First of all, please check whether there is a hole for the
power cable on the insulating board. If no, please bore the board
with a suitable drill bit and fix a rubber grommet on it to protect
the cable from abrasion.
* Afterwards, please pass the cable through the insulating
board and lead from the car into the engine room. Connect the red
conductor to the positive terminal of the accumulator and the
black conductor to the negative terminal.
* At last, ring the remained conductor and fix it.
Note: Please guarantee sufficient relaxation of the power cable in
the car so that the radio can be conveniently disassembled,
assembled, and repaired in the state of power connection.
4) Installation
Warning: For passenger safety, please install the radio securely
using the supplied mounting bracket so that the radio will not be
loosened in case of collision.
* Take the mounting bracket as the sample to draw the
position of the four holes for screws. Then drill the holes on the
instrument panel, and then install the mounting bracket with 4
M5*16 self-tapping screws. (Note: Please install the radio at a
position convenient for operation, and leave enough space for
connection of the cable.)
* Slide the radio into the mounting bracket and fix it to the
bracket with 4 M4*10 SEMS screws (with flat washer and spring
washer). (Set an appropriate height and angle for the radio by
using different screw holes of the bracket.)
* Connect the antenna and the power cable to the radio.
* Install the microphone hanger at an appropriate position
using 2 M4*16 self-tapping screws. (It should be made sure that
the microphone and its cable will not affect safe driving.)
* Connect the microphone to the MIC jack on the front panel
of the radio and put the microphone on the hanger.
Note: When replacing the fuse of the power cable, only use fuses
of the same type and rating; otherwise the radio could be
damaged.
5) Attention
If you have no plan to use external speaker, please cover the
speaker jack with the supplied rubber plug to prevent dust and
sand getting in.
Chapter 3 External View and Functional Keys
3.1 External View
①②
③④⑤
⑥⑦⑧⑨
P1 P2 P3
⑩
1) Power Button
Press and hold this button (1.5 seconds or longer) to turn the
radio power ON or OFF.
2) LED Indicator
Lights red while the radio is transmitting; lights green while
the radio is receiving.
3) / Button (Programmable Button)
4) LCD Display Screen
Refer to “LCD Display Screen” for details.

PT8000 Service Manual
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5) Volume Knob
Rotate to adjust the volume of the radio.
6) MIC Jack/Programming Interface
7) P1Button (Programmable Button)
8) P2 Button (Programmable Button)
9) P3 Button (Programmable Button)
10) PTT Button (on the hand microphone)
Press and hold the PTT button, then speak into the microphone,
your voice can be transmitted to the recipient. Release PTT to
receive.
3.2 LCD Display Screen
Display Description
SCAN
Indicator
Scan function indication: ON when scan function is enabled.
LOW
Indicator
Tx power level indication: ON when the radio is in low power.
Indicates the current channel number when in normal use, ranging
from 1~8.
Indicates the current squelch level when Squelch Level Selection
function is enabled, ranging from 0~9.
Displays “b” when Public Address function is enabled.
Displays “-” when channel information has not been programmed.
Displays “u” when the radio is stunned.
Displays “h” when the radio is killed.
Displays “P” when the radio is in the PC Programming Mode.
Displays “t” when the radio is in the PC Tuning Mode.
Displays “C” when the radio is in the Wired Clone Mode.
3.3 Rear Panel
①②③
1) Antenna Connector
2) Power Terminal
3) External Speaker Jack
Chapter 4 Circuit Description
4.1 Frequency Configuration
ANT
ANT SW RF AMP
MCF
49.95MHz
IF SYSTEM
CF1
450KHz H
CF2
450KHz F
X3 multiply
AF AMP
TCXO
16.8MHz
MIC AMPPLL VCOTX AMPPA AMP
RX
TX
Figure 4.1 Frequency Configuration
The receiver adopts double mixing. The first IF is 49.95MHz
and the second IF is 450kHz.
The first local oscillator signal of the receiver is generated by
the frequency synthesizer and the second local oscillator signal is
generated by the frequency tripler X1.
The transmitter signal is produced by the frequency
synthesizer.
The reference frequency of the frequency synthesizer is
provided by TCXO.
4.2 Principle of Receiver（RX）
Figure 4.2 Principle of Receiver
Front end
The signal coming from the antenna passes through the
RX/TX switch (D3 and D11), and passes through a BPF consists
of two LCs to remove unwanted out-of-band signals, 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 Q16 and its peripheral circuit,
will work to reduce the gain of Q18 only when the input signal is
too large.
First mixer
The Rx signal from LNA is mixed with the first local
oscillator signal from the frequency synthesizer to produce the
first IF signal (49.95MHz).
IF circuit
MCF
49.95MHz
IF SYSTEM
CF1
450KHz H
CF2
450KHz F
X3 mu ltip ly
AF AMP
TCXO
16.8MHz
NJM2902
BPF
RF AMP
BPF
ANT SW
ANT
IC11
MCU 1st Local OSC
D3 D11 Q18 Q19
IC4
IC9
IC9 TDA1519C

PT8000 Service Manual
4
The first IF signal passes through the 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 sent to the IF processing IC (IC6,
TA31136).
IF IC consists of the second mixer, IF amplifier, limiter,
discriminator, noise amplifier, and audio low pass filter.
Signal (16.8MHz) from X1 is amplified and multiplied by Q11
and its peripheral circuit to produce the second local oscillator
signal. Then the second local oscillator signal (50.4MHz) is mixed
with the first IF signal (49.95MHz) in IC6 to generate the second
IF signal (450kHz). And then the second IF signal is amplified
and limited in IC6, filtered by the ceramic filter (CF1 or CF2,
450kHz), and then demodulated in IC6. After that, the
demodulated signal is routed to the audio circuit to output audio
signal.
The second IF filter selection circuit consists of CF1, CF2,
D20, D21, and the peripheral circuit. When the mobile radio is set
to wideband, CF2 is put through and takes effect, while CF1 is cut
off; when the mobile radio is set to narrowband, CF1 is put
through and takes effect, while CF2 is cut off.
Squelch circuit
The demodulated signal from IC6 is sent to the internal noise
amplifier in IC6. Then the resulting signal is further amplified in
Q21 and demodulated in D25, and then the resulting DC level is
sent to the MCU to control the squelch circuit. This voltage is in
inverse proportion to the input signal.
4.3 Principle of Transmitter (TX)
TX power amplification
Figure 4.3 Principle of Power Amplifier and Antenna Switch
The modulated RF signal from VCO is amplified in Q1, Q2,
Q4, and Q5, and is sent to IC1 for power amplification. Output
power of IC1: 25W.
Grid bias of IC1 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
D9 and D10 are RF detector diodes. The output power of the
RF amplifier is detected by RF detector diodes and converted into
DC level. Then the DC level is compared with the signal from
MCU and amplified in IC4, and is sent to grid in IC1 to control
the power output.
If the Tx output power is too high, the voltage detected by the
detector diodes will increase; IC4 output voltage will decrease, so
the bias voltage imposed on IC1 will also decrease, which causes
the Tx output power to be lowered, and vice versa. Thus, the Tx
output power can keep stable under different working conditions.
MCU can set the power through changing the voltage input to
IC4.
4.4 Principle of Frequency Synthesizer
Figure 4.4 Frequency Synthesizer
PT8000 adopts PLL type frequency synthesizer.
The frequency synthesizer consists of reference oscillator,
voltage control oscillator (VCO), programmable divider, phase
comparator, and low pass filter (LPF).
Tx VCO unit consists of Q6, D1, D4, D5, and D6 etc. D8 is
the modulation circuit of Tx VCO.
Rx VCO unit consists of Q12, D14, D16, D17 and D18 etc.
IC3 (MB15E03SL) is the PLL integrated circuit, which
consists of programmable reference divider, programmable
divider, phase comparator, and charge pump etc.
The low pass filter consists of R54 and C113 etc.
The reference frequency is provided by X1 (TCXO,
16.8MHz).
Reference frequency from TCXO (Temperature-Controlled
Crystal Oscillator) is divided by the programmable reference
divider in IC3 to produce reference frequency of 5kHz or 6.25kHz
(determined by the preset channel frequency and is controlled by
MCU).
The oscillation frequency from VCO goes to IC3, 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 sent 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, pin14 of IC3 will
output low level signal to MCU. Then MCU prohibits the Tx from
transmitting and makes an alert tone.
VCO RF AMP
8T 8R
Q4 Q5
DRIVE
PRE
8T 8T
ANT SW LP F
APC CONTROL
IC4
TX/R X SW
TO ANT
IC1
RA30H
APC
8T
13.8V
UL
CK
DT
UL
PLL IC
IC3
QT TCXO
5V
LOOP F ILTER
RIPPLE
FILTER
VCO
Q6
BUFF
Q1 Q2
RF AMP VCO OUT
5V
Q14
2ND LOCAL
MB15E03SL
MOD
16.8MHz
X1
TCXO
3.5V
TX
VCO
Q14
RX
8R
Q11
*3 2ND LOCAL AMP
Q7
BUFF
5V

PT8000 Service Manual
5
4.5 Audio Processing Circuit
Figure 4.5 Audio Processing
MIC signal processing:
Voice signal from MIC is sent to IC13A for amplification
(IC13A, D32, Q32 and other components form the AGC circuit to
improve the dynamic range of the circuit). Then the resulting
signal is pre-emphasized by C322 and R267 and goes to the IDC
circuit consists of IC13B. After being limited, the signal is
switched into wideband or narrowband in Q30 and then passes
through two low pass circuits of IC13C and IC13D to remove
signals above 3000Hz. Then the filtered signal is sent to VR2 to
adjust the deviation, and is modulated by D8, and then is sent to
Tx VCO.
Rx audio signal processing:
Voice signal from IC6 is divided into two parts. One branch of
the signal is routed to the low pass circuit consists of IC8, where it
is amplified and filtered (to remove the voice signal) to obtain
more purified CTCSS/DCS signal, which is then sent to MCU for
processing. The other branch of the signal goes to IC9. After being
amplified by IC9C (Q29 is the gain switching circuit which is
used to switch volume between wideband and narrowband), the
signal is divided into two branches again. One branch is sent to
the 2-tone shaping circuit consists of IC10, where it is shaped into
better square wave signal, and then is sent to MCU to judge the
2-tone signal; the other branch passes through the high pass circuit
consists of IC6D to remove the sub-audio signal and passes
through the de-emphasis circuit consists of R173 and C245. Then
the de-emphasized signal is passed through the low pass circuit
consists of IC9A and IC9D and the high pass circuit consists of
Q26. After that, the resulting signal goes to the volume switch
where the signal volume will be adjusted. After being amplified in
IC7, the signal will be output to drive the speaker.
Impedance of the speaker: 16
Note:
* Any terminal of the speaker should not be grounded.
* The emergency alarm sound has no volume limit.
4.6 Power Supply:
The radio uses 13.8V battery, and the Tx power amplification
circuit (IC1) and Rx audio power amplifier (IC7) directly adopt
the battery for power supply.
IC17: 5V, LDO, micropower regulator, which supplies power for
MCU, IF processing unit and frequency synthesizer etc.
IC16: 8V, LDO, micropower regulator.
Q38: 8T switch, which is controlled by MCU.
8T: Supplies power for front end of transmitter.
Q40: 8R switch, which is controlled by MCU.
8R: Supplies power for RF amplifier and mixer of the receiver.
4.7 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 (E2PROM, AT24C08)
The memory is stored with channel data, CTCSS/DCS data,
other data for function setting, and parameter adjusting data.
CTCSS/DCS signal encoding and decoding:
CTCSS/DCS signal (output from pin12, PWM wave)
generated by MCU is balanced and adjusted by VR1. Then the
resulting signal is sent to VCO and TCXO respectively for
modulation.
CTCSS/DCS signal from the receiver is sent to MCU for
decoding. MCU checks if the received CTCSS/DCS signal
matches the preset value of the radio, and determines whether to
open the speaker or not.
SPEAKER
IC6
Q33
SW
AF POWE R AMP
IC7
AF OUT
MUTE
TDA1519C
IC8A IC8BIC8CIC8D
AMP LP LP AMP CTCSS/DCS
MIC
IC9C IC9BIC9AIC9 D
AMP HP LP LP
HP
Q26 8R
IC10BIC10A
HP AMP 2T
IC5
DTMF
DECODER
D0
D1
D2
D3
DV
J1 SPK
IC13D IC13AIC1 3BIC13C
LP LP IDC AMP
MOD
VR1
10K

PT8000 Service Manual
6
CTCSS
CTCSS (Continuous Tone Control Squelch System) is a
squelch control system which is modulated on carrier and is
guided by a continuous sub-audio signal. If CTCSS is set, the
communication between the transmitting and receiving radios can
be realized only when the two radios have set the same CTCSS
frequency. In doing this, disturbance from other signals can be
avoided.
PT8000 has 39 groups of standard CTCSS frequencies for
your selection. See Table 4.1.
CTCSS signal (PWM wave) is generated by MCU, and is
passed through low pass filter consists of RC to remove the high
frequency components (above 300Hz). Then the resulting signal is
routed to VCO for modulation.
Table 4.1 CTCSS Frequencies
No. Frequency
[Hz]
No. Frequency
[Hz]
No. Frequency
[Hz]
No. Frequency
[Hz]
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
DCS (Digital Code Squelch), which is used to control squelch,
is a series of continuous digital codes modulated on carrier
together with voice signal. If DCS is set, the speaker can be
opened only when the radio receives signal with the same DCS to
avoid disturbance of unwanted signals.
PT8000 has 83 standard codes (inverted and non-inverted) for
your selection. See Table 4.2.
DCS signal (PWM wave) is produced by MCU. It passes
through the low pass filter consists of RC to remove the high
frequency components (above 300Hz). Then the resulting signal is
sent 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 to 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
073 165 306 431 624 754
074 172 311 432 627
4.8 Semiconductor Data
MCU Description
Table 4.3 MCU (R5F212A8) Port Description
No. Port name Pin Name I/O Function
1 IGN P33 I Reserved
2 EXT-ALARM P34 I External Alarm Input
3 MODE I Connect the 4.7K resistor with VCC
4 SCL P43 O E2PROM Clock Line
5 SDA P44 I/O E2PROM Data Line
6 RST I Reset Input
7 XOUT O
8 VSS - GND
9 XIN I Oscillator（7.3MHz）
10 VCC - CPU Power Input 5V
11 SHIFT P54 O Clock Beat Shift. H: On
12 TO0 P53 O(PWM) QT/DQT Output
13 TO1 P52 O(PWM) QT/DQT Output
14 DEV1 P51 O
15 DEV2 P50 O
Max. Deviation Compensation
(frequency band is divided into four parts)
16 SCNLED P27 O Scanning Indicator H: on
17 LOWLED P26 O Low-power Indicator H: on
18 GLED P25 O Rx Green Indicator H: on
19 RLED P24 O Tx Red Indicator H: on
20 UL P23 I
PLL Unlock Detect Pin
H: Locked L: Unlocked
21 CK P22 O PLL Clock Output
22 LE P21 O PLL IC Enable Pin H: Locked
23 DT P20 O PLL Data Output
24 DTMFD0 P17 I DTMF Detect Input
25 DTMFD1 P16 I DTMF Detect Input
26 DTMFD2 P15 I DTMF Detect Input
27 DTMFD3 P14 I DTMF Detect Input
28 DTMFDV P86 I DTMF Decode Valid Input
29 RX P85 O TX/RX VCO Select H: Tx; L: Rx
30 MICDAT P84 I
Reserved: Hand MIC Digital Keypad Data
Input
31 T2IN P83 I(TRFI) Reserved: 2TONE Detect Input
32 HOOK P82 I Hook Signal Input, connect R0 with RXD
33 LEDC P81 O LED Display Control H: Valid
34 DATA P80 O LED Display Control Data
35 CLK P60 O LED Display Control Clock

PT8000 Service Manual
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36 INT P45 I Power Detect Input
37 TXD P66 O RS-232C Output
38 RXD P67 I RS-232C Input
39 BLC P65 O Reserved
40 8TC P64 O Transmitting Power Control H: on
41 8RC P63 O Receiving Power Control H: on
42 APC/TV P31 O(PWM)
TX: Automatic Power Control Output
RX: BPF Tuning Output
43 SBC P30 O Main Power Switch Control H: on
44 TXGSW P36 O Tx Valve Control L: Tx
45 PA P32 O Public Address Control H: PA
46 AF_MUTE P13 O Mute Control L: AF Mute
47 MIC_MUTE P12 O Mute Control H: MIC Mute
48 AFCO P11 O
AF Power Amplifier Control
L: Power Amplifier On
49 TI P10 I(A/D8) QT/DQT Signal Input
50 RSSI P00 I(A/D7) Signal Strength Input
51 BUSY P01 I(A/D6) Busy Signal Input
52 TEMP P02 I(A/D5)
Power Amplifier Temperature Protection
Input
53 KEY2 P03 I(A/D4) Keypad Input
54 KEY1 P04 I(A/D3) Keypad Input
55 PTT P62 I
Press [PTT] to input, Connect R0 with
TXD
56 NC Connect Pull-down Resistor with VSS
57 NC Connect Pull-down Resistor with VSS
58 VCCN P06 O(D/A0)
Frequency Voltage Regulation Output
VCCN
59 AVSS - Connect with VSS
60 DTMF P07 O(D/A1) D/A Output: DTMF/BEEP Output
61 VREF - Connect with AVCC
62 AVCC - CPU Power 5V Input
63 MAXAF P37 O
Max. Alarm Volume Control Switch
H: Controlled by Volume Switch
L: Max Volume at Emergency Alarm
64 WNTC P35 O
Wideband/Narrowband Control
H: Wideband L: Narrowband
Table 4.4 Function Description of Semiconductor Components
Position
Mark Model Function Description
IC5 HT9172 DTMF decoder chip
IC12 PST9140NR MCU reset circuit
IC13 NJM2902V MIC amplification, limitation, filtering
IC3 MB15E03SL Frequency synthesizer
IC4 NJM2904 APC, Voltage comparison, driving
IC6 TA31136
Rx 2nd local oscillation, 2nd IF amplification,
limitation, demodulation, and noise amplification
IC9 NJM2902 Rx demodulated signal amplification and filtering
IC8 NJM2902 Rx CTCSS/DCS signal amplification and filtering
IC11 R5F212A8 MCU
IC15 AT24C08
E2PROM, memorizes channel frequency data,
function setting parameters, and adjusting status
parameters
IC7 TDA1519C Rx AF power amplification
IC11 RA30H Tx final power amplification
IC17 NJM78L05 5V voltage regulation output
IC16 TA7808S 8V voltage regulation output
Q9 DTC144EE APC control switch
Q12 2SK508NV Rx VCO oscillation circuit
Q14 2SC4617 VCO power filter
Q11 2SC5108 Rx 2nd local oscillation frequency multiplier circuit
Q16 2SK1829 Rx high power amplifier gain control switch
Q18 3SK318 Rx high power amplifier
Q19 3SK318 First mixer
Q1 2SC5108 VCO buffer amplifier
Q20 2SC5108 1st IF amplifier
Q21 2SC4617 Rx noise amplifier
Q22 DTC144EE Wideband/narrowband noise toggle switch
Q23 DTA144EE Rx wideband/narrowband frequency discrimination
toggle switch
Q29 DTA144EE Rx wideband/narrowband toggle switch
Q30 2SK1824 Tx wideband/narrowband toggle switch
Q27 DTC144EE Beat shift control switch
Q33 2SK1824 Rx AF mute switch
Q45 2SK1824 Rx AF output switch, disconnect on emergency
Q28 DTC144EE AF power amplification control switch
Q35 DTA144EE Power switch of MIC amplification unit
Q40 KTA1298 8R switch
Q1 2SC5108 VCO buffer amplifier
Q38 KTA1298 8T switch
Q32 2SC4919 MIC AGC control switch
Q4 2SC3357 Tx 1st amplifier
Q5 2SC3357 Tx 2nd amplifier
Q46 2SK1824 Rx AF output switch, put through on emergency
Q6 2SK508NV Tx VCO oscillation circuit
Q3 2SC4116 Tx VCO control switch
Q7 2SC5108 VCO buffer amplifier
Q13 2SC4116 Rx VCO control switch
Table 4.5 Function Description of Diodes
Position Mark Model Function Description
D3, D11 L709CE Transmitter antenna switch diode
D12 MA2S111 Unlock detect diode
D14, D16, D17,
D18
HVC376 Rx VCO oscillation varactor diode
D16 HVC376 Rx VCO oscillation varactor diode
D17 HVC376 Rx VCO oscillation varactor diode
D18 HVC376 Rx VCO oscillation varactor diode
D7 HZU5ALL APC output voltage limiting diode
D2, D19 HSC277 VCO output switch
D20, D21 DAN222 Rx 2nd IF filter wideband/narrowband toggle
switch
D8 HVC376 Tx VCO oscillation varactor diode
D23 HVC355B Rx BPF varactor diode
D25 MA742 Noise demodulation
D27, D28, D26,
D30, D29
HVC376B Rx BPF varactor diode
D32 1SS372 MIC AGC detect diode
D1, D4, D5, D6 HVC376 Tx VCO oscillation varactor diode
D8 1SV278 Tx VCO modulation diode
Table 4.6：Features of Crystal Filter XF1
Item Rated Value
Nominal center frequency 49.95MHz
Passband width ±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 Features of CF1 LTWC450H

PT8000 Service Manual
8
Item Rated Value
Nominal center frequency 450kHz
6dB band width ±3.0kHz or higher
50dB band width ±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 Features of CF1 LTWC450F
Item Rated Value
Nominal center frequency 450kHz
6dB band width ±6.0kHz or higher
50dB band width ±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
Chapter 5 Mode Introduction
Mode Introduction
Mode Function How to enter
User Mode For normal use Power ON
Data
Programming
Mode
Used to read and write
frequency data and
other features to and
from the radio
Received commands
from PC. See below for
further information.
PC Test Mode Tune the radio
parameters by PC
Received commands
from PC. See below for
further information.
PC
Mode
Firmware
Programming
Mode
Upgrade the radio
when new features are
released
Press and hold P3 for
over 2 seconds while
turning the radio power
ON, and received
commands from PC
Wired Clone Mode
Used to transfer
programming data
from one radio to
another
Press and hold P1 for
over 2 seconds while
turning the radio power
ON
5.1 User Mode
You can enter User Mode (conventional communication mode)
by turning the radio power ON. Under this mode, users can use
the defined functions of the mobile radio.
5.2 Data Programming Mode
The radio has been set before leaving the factory. However,
due to different requirements of users, the radio’s operating
frequency, channels, CTCSS/DCS, scan, and other functional
parameters should be reprogrammed. Therefore, Kirisun has
specially designed a set of Chinese/English programming software
KSP8000 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 PC
are as follows:
A. Install KSP8000 on the PC.
B. Connect the radio to the serial port of the PC with the
special programming cable (KSPL05). Refer to the figure below.
Figure 5.1
C. Turn the computer power ON.
D. Turn the radio power ON.
E. Run the KSP8000 programming software by double
clicking on its executive program.
F. Click “Program” in the main menu of KSP8000, 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 KSP8000
according to requirements of the user:
Radio Information:
Radio Type, Frequency Range, Serial Number, Embedded
Information, MCU Version, Hardware Version, etc.
Radio Configuration:
(1) Key Assignment: P1, P2, P3, and can be set as
long/short key and the hold time can be defined.
(2) Miscellaneous
1. Wired Clone
2. TOT (Time Out Timer)
3. TOT Reset Timer
4. TOT Pre-Alert
5. TOT Rekey time
6. Squelch Level selection
7. Beep Tone
8. Read Data Password
9. Write Data Password
(3) Scan
Scan Function on/off, Priority Channel, Revert Channel, Tx
Dwell Time, Dropout Delay Time, Lookback Time.
(4) Emergency settings
Channel Information:
(1) Rx Frequency and Tx Frequency (Step:
2.5KHz/5KHz/6.25KHz)

PT8000 Service Manual
9
(2) Rx Signaling and Tx Signaling
a) None
b) CTCSS (60~260Hz @ 0.1Hz step)
c) DCS (-777~777@octal number)
(3) Busy Channel Lockout (BCL)
(4) Beat Shift
(5) Channel Spacing: 25KHz/12.5KHz (Wide/Narrow)
(6) Scan Add/Delete
(7) Tx Power (High/Low)
(8) Clear Tail Tone
(9) CALL1 and CALL2 encode
(10) PTT-ON Index, PTT-OFF Index
DTMF Setting
DTMF Encoder Template
DTMF Encoder Sequences (1~12)
DTMF Decoder Sequences (1~4)
DTMF Decoder Response
Please refer to the “Help” document of KSP8000 for details.
Note:
1. Please firstly read data of the radio and back up the data before
editing the parameters on KSP8000.
2. If the radio cannot function normally after being written in with
the edited data, please rewrite the backup data into the radio.
3. “Model Information” is important for the radio; users should
not modify it.
5.3 PC Test Mode
Connect the radio to the serial port of the computer with the
special programming cable. Refer to Figure 5.1.
Warning: Before entering the PC Test Mode, please firstly
connect a 50HF load to the antenna connector of the radio or
connect the radio to a general test set.
With the KSP8000 programming software, you can enter the
Tuning Mode under PC Test Mode to tune the following
parameters of the radio:
1) Frequency Stability
2) Five frequency points of Tx High Power
3) Five frequency points of Tx Low Power
4) Five frequency points for SQL9 On (Wideband)
5) Five frequency points for SQL9 Off (Wideband)
6) Five frequency points for SQL9 On (Narrowband)
7) Five frequency points for SQL9 Off (Narrowband)
8) Five frequency points for SQL1 On (Wideband)
9) Five frequency points for SQL1 Off (Wideband)
10) Five frequency points for SQL1 On (Narrowband)
11) Five frequency points for SQL1 Off (Narrowband)
12) Five frequency points for QT (67Hz) DEV (Wideband)
13) Center frequency point for QT (67Hz) DEV (Narrowband)
14) Five frequency points for QT (151.4Hz) DEV (Wideband)
15) Center frequency point for QT (151.4Hz) DEV (Narrowband)
16) Five frequency points for QT (254.1Hz) DEV (Wideband)
17) Center frequency point for QT (254.1Hz) DEV (Narrowband)
18) Five frequency points for DQT DEV (Wideband)
19) Center frequency point for DQT DEV (Narrowband)
20) Five frequency points for Rx Sensitivity
21) Center frequency of DTMF DEV (Wideband and
Narrowband)
22) Tx Low Voltage
23) Rx Low Voltage
5.4 Firmware Programming Mode
The radio is in possession with an internal Flash ROM which
can be upgraded when new features are released.
Procedure:
1. Press and hold P3 for over 2 seconds while turning the radio
power ON. The LED will light orange and the radio enters the
Firmware Programming Mode.
2. Run the firmware programming software KMU on PC.
3. Connect the radio to the computer by the programming cable.
4. Select a COM port and load the firmware upgrading file. Then
click on “E.P” to start downloading.
5. If the communication ends successfully, turn the radio power
OFF to exit.
6. If you want to continue programming other radios, repeat steps
1 to 5.
5.5 Wired Clone Mode
If the wired clone function is enabled, the radio can enter the
Wired Clone Mode. After entering this mode, the radio will not
exit automatically. The user needs to restart the radio if he wants
the radio to return to the User Mode.
The operation is as follows:
Figure 5.2

PT8000 Service Manual
10
1. Press and hold P1 while turning the radio power ON to enter
the Wired Clone Mode. The display will show “C”. If wired clone
function is disabled, the radio will enter User Mode.
2. Connect the slave radio to the master radio by the cloning cable
(KCL02) and turn on the power of the slave radio.
3. Press and hold P2 on the master radio to start cloning. Then the
LED on the master will light red. The data of the master is sent to
the slave. While the slave is receiving the data, the display shows
“P” and the LED lights green. When cloning of data is completed,
the red LED on the master will go out, and the slave radio will
restart automatically.
4. You can continue to clone the data according to step 3.
Note: The user can enable or disable the wired clone function
through PC programming software. Once the wired clone function
is disabled, the radio cannot enter the Wired Clone Mode.
Chapter 6 Disassembly for Maintenance
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 Exploded View
33
31
30
29
26
26
19
19
6
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
25
24
22
21
20
19 18
17
16
27
28
面壳组件装配
23
Figure 6.1
No. Part No. Description PCS
1 201-008000-R02 Volume Knob 1
2 203-006800-R26 Circlip for Knob 1
3 203-007200-R08 Nut for Knob 1
4 204-006800-R01 LCD Protective Film 1
5 LOGO 1
6 301-25050J-R01 Screw M2.5*5 6
7 201-008000-R01 Front Cabinet 1
8 204-008000-R01 Dustproof Net for Speaker 1
9 121-100000-R21 Speaker 1
10 120-400000-R14 Speaker Wire 1
11 120-400000-R15 Flat Cable 1
12 204-008000-R02 Upper Dustproof Strip for Front
Cabinet
1
13 204-008000-R03 Lower Dustproof Strip for Front
Cabinet
1
14 203-008000-R02 Al Top Case 1
15 120-100000-R15 Power Cable 1
16 201-008000-R06 Power Cable Fastener 1
17 203-008000-R03 Metal Baffle Plate 1
18 202-008200-R02 Rubber Plug for External Speaker
Jack
1
19 303-30100G-R01 Screw M3*10, with Spring Washer
20 203-008200-R03 Antenna Connector
21 102-304452-R01 Power Module 1
22 203-008200-R05 Shield for Power Module 1
23 204-008200-R10 Electric Conductive Cushion 1
24 Mainboard Assembly 1
25 301-30060G-R01 Screw M3*6 8
26 204-008000-R04 Dustproof Strip between Top and
Bottom Al Case
2
27 203-008000-R01 Al Bottom Case 1
28 301-30250D-R01 Screw M3*25 6
29 201-008000-R04 Light Guide 1
30 201-008000-R03 Lens 1
31 202-008000-R01 Rubber Key 1
32 PCB Assembly 1
33 302-26060D-R01 Screw M2.6*6 5
6.2 Instruction for Disassembly of the Radio for Maintenance
1) RF-PCB disassembly
①Screw off the six M3*25 screws on the Al bottom case, and
remove the Al bottom case (See Figure 6.2).
②Remove the shield for power module, and then remove the
solder of the power module on the PCB with a soldering iron (See
Figure 6.2).
③Screw off the four M2.5*5 screws on the baffle plate, and then
remove the metal baffle plate, the power cable fastener and the
Front Cabinet Assembly

PT8000 Service Manual
11
rubber plug for external speaker jack (See Figure 6.2).
Figure 6.2
④Remove the flat cable and the speaker wire, and then remove
the solder between the antenna connector and the RF-PCB with a
soldering iron. Screw off the screws, and take the RF-PCB out of
the top Al case carefully (See Figure 6.3).
Figure 6.3
2) Key-PCB disassembly
①Screw off the six M3*25 screws on the Al bottom case, and
remove the bottom case (See Figure 6.4).
②Remove the flat cable and speaker wire (See Figure 6.4).
③Screw off the two M2.5*5 screws on the front cabinet, and then
separate the front cabinet from the main machine (See Figure 6.4).
④Pull out the volume knob, and then remove the circlip and nut
for volume knob (See Figure 6.4).
⑤Screw off the five fixing screws (M2.6*6) for Key-PCB, and
then take the Key-PCB out of the plastic front cabinet (See Figure
6.4).
Figure 6.4
After the disassembly above, you can repair and adjust the
radio according its actual malfunction.
Chapter 7 Adjustment
Before test/adjustment, make sure all equipment has been
grounded!
Before test/adjustment, make sure the antenna output terminal
has been correctly connected to corresponding equipment or load!
The transmitter output terminal must be terminated with an RF
power attenuator and connected to a standard signal generator
(SSG)/frequency counter/deviation meter/spectrum analyzer!
Make sure no transmission operation is being conducted while
measuring the receiver!
During the adjustment/test/maintenance, make sure reliable
anti-static measures are taken for human body and equipment.
7.1 Equipment and Software Required for Test and
Adjustment
Equipment and software listed in Table 7.1 are required for
test and adjustment of PT8000.
Table 7.1 Equipment and Software Required for Test and
Adjustment
No. Name Specifications
1 Computer P2 or above, IBM compatible PC, WINDOWS
98/ME/2000/XP Operating System
2 Programming
software KSP8000
3 Programming
cable KSPL05
4 Clone cable KCL02
5 DC regulated
power supply
Output voltage: 13.8V
Output current: 20A
6 RF power
meter
Measurement range: 0.5-50W
Frequency range: 100MHz-500MHz
Impedance: 50
SWR 1.2
7 Frequency
counter
Frequency range: 0.1-600MHz
Frequency accuracy: better than ±1×10-6
Sensitivity: better than 100mV
8 Deviation
meter
Frequency range: DC600MHz
Measurement range: 0 - ±5kHz

PT8000 Service Manual
12
9 DMM Input impedance: above 10M/V DC, capable of
measuring voltage, current and resistance.
10 Audio signal
generator
Frequency range:2-3000Hz
Output level: 1-500mV
11 RF power
attenuator
Attenuation: 40dB or 50dB
Supporting power : higher than 50W
12 Standard signal
generator
Frequency range:10MHz-1000MHz
Output level: 0.1uV-32mV (-127dBm~-17dBm)
13 Oscilloscope Frequency range: DC~20MHz
Test range: 10mV-20V
14
Audio
frequency
voltmeter
Test range: 10mV-10V
Recommendation: Item 6, 7, 8, 10, 11, and 12 listed in the
table can be replaced by HP8920 general test set.
8
1
1
2
3
48
5
7
6
18
(PTT)
(MBL)
(PSB)
(GND)
(HOOK)
(ME)
(MIC)
(CM)
Figure 7.1 External Microphone Interface Definition
7.2 Adjustment
How to enter PC Tuning Mode:
* Firstly, enter PC Test Mode. Refer to Chapter 4.
* Click “Edit” in the main menu of KSP8000 programming
software, and then click “Entry Tuning” in the pull-down menu to
enter the Tuning Mode.
* Then the “Tuning Item List” screen will pop up. Double click
the item you want to adjust, and then you can adjust the
parameters.
* Exit the PC Test Mode after adjustment.
7.2.1 VCO
a. Adjust the channel to its high frequency point (See Table 7.2).
b. Under the receiving status, measure the voltage of PD by DMM.
Then adjust the PD voltage to be 3.5V ± 0.3V by tuning the
trimming capacitor C122.
c. Under the transmitting status, measure the voltage of PD by
DMM. Then adjust the PD voltage to be 3.5V ± 0.3V by tuning
the trimming capacitor C39.
d. Adjust the channel to its low frequency point (See Table 7.2).
e. Under the receiving status, measure the voltage of PD by DMM,
the value should be larger than 0.6V.
f. Under the transmitting status, measure the voltage of PD by
DMM, the value should be larger than 0.6V.
Table 7.2 High/Center/Low Frequency Point for PT8000
Low Freq Point Center Freq Point High Freq Point
PT8000(2) 400.125MHz 425.125MHz 449.975MHz
PT8000(3) 438.125MHz 464.125MHz 489.975MHz
7.2.2 Tx deviation (set the HP8920 to be in the Tx status, and set
the filter to be 50Hz~15kHz)
a. Input audio signal of 120mV, 1000Hz to the MIC jack of the
radio.
b. Set the channel to its low frequency point (See Table 7.2).
c. Press and hold the PTT key while adjusting VR2 to make the
deviation be 4.2kHz.
d. Observe the deviation of other channels, which should be larger
than 3.5kHz.
7.2.3 PLL frequency (set the HP8920 to be in the Tx status)
In the “Tuning Mode”, double click “Frequency Stability”,
and adjust the value within the range of 0~255 to make the Tx
frequency reach the rated value (within ±100Hz).
7.2.4 Tx power (set the HP8920 to be in the Tx status)
a. In the “Tuning Mode”, double click Tx “High Power”, and
adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively within the range of 0~255 to
make the Tx power be 22W. Meanwhile, observe the operating
current, which should be no larger than 7A.
b. In the “Tuning Mode”, double click Tx “Low Power”, and
adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively within the range of 0~255 to
make the Tx power be 5W.
7.2.5 DCS waveform balance (set the HP8920 to be in the Tx
status, and set the filter to be 20Hz ~ 300Hz)
In the “Tuning Mode”, double click “DCS DEV”, and adjust
VR1 to make the waveform into square wave.
7.2.6 DCS DEV (set the HP8920 to be in the Tx status, and set the
filter to be 20Hz ~ 300Hz)
a. In the “Tuning Mode”, double click “DCS DEV”, and select
“Wideband”. Adjust the five frequency points of “Lowest”, “Low”,
“Mid”, “High” and “Highest” respectively within the range of
0~255 to make the deviation be 0.75kHz.
b. In the “Tuning Mode”, double click “DCS DEV”, and select
“Narrowband”. Adjust the value within the range of 0~255 to
make the deviation be 0.35kHz.

PT8000 Service Manual
13
7.2.7 QT (67.0) DEV (set the HP8920 to be in the Tx status, and
set the filter to be 20Hz ~ 300Hz)
a. In the “Tuning Mode”, double click “QT(67.0) DEV”, and
select “Wideband”. Adjust the five frequency points of “Lowest”,
“Low”, “Mid”, “High” and “Highest” respectively within the
range of 0~255 to make the deviation be 0.75kHz.
b. In the “Tuning Mode”, double click “QT(67.0) DEV”, and
select “Narrowband”. Adjust the value within the range of 0~255
to make the deviation be 0.35kHz.
7.2.8 QT (151.4) DEV (set the HP8920 to be in the Tx status, and
set the filter to be 20Hz ~ 300Hz)
a. In the “Tuning Mode”, double click “QT(151.4) DEV”, and
select “Wideband”. Adjust the five frequency points of “Lowest”,
“Low”, “Mid”, “High” and “Highest” respectively within the
range of 0~255 to make the deviation be 0.75kHz.
b. In the “Tuning Mode”, double click “QT(151.4) DEV”, and
select “Narrowband”. Adjust the value within the range of 0~255
to make the deviation be 0.35kHz.
7.2.9 QT (254.1) DEV (set the HP8920 to be in the Tx status, and
set the filter to be 20Hz~300Hz)
a. In the “Tuning Mode”, double click “QT(254.1) DEV”, and
select “Wideband”. Adjust the five frequency points of “Lowest”,
“Low”, “Mid”, “High” and “Highest” respectively within the
range of 0~255 to make the deviation be 0.75kHz.
b. In the “Tuning Mode”, double click “QT(254.1) DEV”, and
select “Narrowband”. Adjust the value within the range of 0~255
to make the deviation be 0.35kHz.
7.2.10 Rx sensitivity (set the HP8920 to be in the Rx status)
In the “Tuning Mode”, double click “Sensitivity”, and adjust
the five frequency points of “Lowest”, “Low”, “Mid”, “High” and
“Highest” respectively within the range of 0~255 to make the
sensitivity of each frequency point be the highest.
See Table 7.4 for detailed parameters.
7.2.11 Rx squelch (set the HP8920 to be in the Rx status)
a. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-115dBm, audio frequency of 1kHz, and deviation of 3kHz to the
antenna connector of the mobile radio), double click “SQL9 On”,
and select “Wideband”. Choose a frequency point, and click
“Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
b. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-115dBm, audio frequency of 1kHz, and deviation of 1.5kHz to
the antenna connector of the mobile radio), double click “SQL9
On”, and select “Narrowband”. Choose a frequency point, and
click “Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
c. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-116dBm, audio frequency of 1kHz, and deviation of 3kHz to the
antenna connector of the mobile radio), double click “SQL9 Off”,
and select “Wideband”. Choose a frequency point, and click
“Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
d. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-116dBm, audio frequency of 1kHz, and deviation of 1.5kHz to
the antenna connector of the mobile radio), double click “SQL9
Off”, and select “Narrowband”. Choose a frequency point, and
click “Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
e. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-122dBm, audio frequency of 1kHz, and deviation of 3kHz to the
antenna connector of the mobile radio), double click “SQL1 On”,
and select “Wideband”. Choose a frequency point, and click
“Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
f. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-122dBm, audio frequency of 1kHz, and deviation of 1.5kHz to
the antenna connector of the mobile radio), double click “SQL1

PT8000 Service Manual
14
On”, and select “Narrowband”. Choose a frequency point, and
click “Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
g. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-123dBm, audio frequency of 1kHz, and deviation of 3kHz to the
antenna connector of the mobile radio), double click “SQL1 Off”,
and select “Wideband”. Choose a frequency point, and click
“Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
h. In the “Tuning Mode” (input RF signal with the same frequency
as the adjusted frequency point and with the signal level of
-123dBm, audio frequency of 1kHz, and deviation of 1.5kHz to
the antenna connector of the mobile radio), double click “SQL1
Off”, and select “Narrowband”. Choose a frequency point, and
click “Begin”, the programming software will adjust the value
automatically. When the value keeps stable, click “OK”, the
adjustment of that frequency point is completed. Use the method
to adjust the five frequency points of “Lowest”, “Low”, “Mid”,
“High” and “Highest” respectively.
7.2.12 DTMF DEV (set the HP8920 to be in the Tx status, and set
the filter to be 50Hz ~ 15kHz)
a. In the “Tuning Mode”, double click “DTMF DEV”, and select
“Wideband”. Adjust the five frequency points of “Lowest”, “Low”,
“Mid”, “High” and “Highest” respectively within the range of
0~255 to make the deviation be 3.5kHz.
b. In the “Tuning Mode”, double click “DTMF DEV”, and select
“Narrowband”. Adjust the value within the range of 0~255 to
make the deviation be 1.7kHz.
7.3 Adjustment Description
Refer to Table 7.3, 7.4, and 7.5 for the above mentioned
adjustment.
Table 7.3 VCO
Item Test Condition Test Equipment Measurement
Terminal Adjustment Parts Requirement Remark
Setting BATT terminal voltage: 13.8V DMM PD
CH: Rx high freq point C122 3.5V ± 0.3V Adjust
CH: Rx low freq point ﹥0.6V Observe
CH: Tx high freq point C39 3.5V ± 0.3V Adjust
VCO lock
voltage
CH: Tx low freq point ﹥0.6V Observe
Table 7.4 Receiver Section
Item Test Condition Test Equipment Measurement
Terminal
Adjustment
Parts Requirement Remark
BPF
Spectrum
analyzer /
General test set
Before mixing Tuning
mode Smooth wave
User
adjustment not
recommended
Audio
Power
Test freq: Mid freq point
Antenna connector input:
RF OUT: -47dBm (1V)
MOD: 1kHz
DEV: ± 3.0kHz/± 1.5kHz
Audio load: 8
Tuning
mode
(Turn the
volume knob
fully
clockwise)
Audio power
＞4W
Sensitivity
CH: Mid freq point
CH: Low freq point
CH: High freq point
RF OUT: -119dBm
(0.25V)
MOD: 1kHz
DEV: ± 3.0kHz/± 1.5kHz
Tuning
mode
SINAD: 12dB
or higher
Squelch CH: Rx mid freq point
RF signal
generator
Oscilloscope
Audio
frequency
voltmeter
Distortion
meter
General test set
Speaker
connector
Tuning Normal squelch

PT8000 Service Manual
15
SQL9
RF OUT: -114dBm
SQL1
RF OUT: -121dBm
mode on after
adjustment
Table 7.5 Transmitter Section
Item Test Condition Test Equipment Measurement
Terminal
Adjustment
Parts Requirement Remark
Tx frequency Frequency counter
/ General test set Tuning mode Within ± 100Hz
DCS waveform
(balance) Oscilloscope /
General test set VR1 Smooth and similar to
square wave
Power
Power meter /
General test set
Ammeter
Tuning mode Adjust to 22W/5W
Max. modulation
DEV
CH: Tx low freq
point
AG:
1kHz/120mV
VR2 Adjust to ±
4.2kHz/2.1kHz
DTMF DEV Tuning mode Adjust to
±3.5kHz/1.7kHz
± 200Hz
CTCSS DEV CTCSS: 67Hz
CTCSS DEV CTCSS:
151.4Hz
CTCSS DEV CTCSS:
254.1Hz
DCS DEV DCS: 023N
Deviation meter /
General test set
Antenna
Tuning mode Adjust to ±
0.75kHz/0.35kHz ± 50Hz
Chapter 8 Specifications
8.1 General Specifications
Product Model PT8000
(136-174)MHz (400-450)MHzFrequency
(438-490)MHz (350-400)MHz
Type of Modulation 16KF3E/11KF3E
Number of Channels 8
Channel Spacing 25kHz/12.5kHz
IF 1st IF: 49.95MHz; 2nd IF: 450kHz
Operating Voltage 13.8V, negative terminal grounded
Operating Temperature -25℃~ +55℃
Antenna Impedance 50
MIC Impedance 2.2k 
150mm*53mm*130mm (radio only)Dimension
165mm*62mm*130mm (with mounting bracket)
1030g (radio only)Weight
1310g (with mounting bracket)
8.2 Rx Part
Usable Sensitivity (12dB SINAD) -118dBm
Squelch On Sensitivity -121dBm @ SQL1
Rx Residual Output W: -45dB/N: -40dB
Modulation Rx Bandwidth W: ± 7kHz/N: ± 3.5kHz
Adjacent Channel Selectivity W: 70dB/N: 60dB
Intermodulation Rejection 65dB
Spurious Response Rejection 70dB
Audio Output Power 4W, balanced @ distortion 5%, 8 
Rx Current Consumption 1A
Standby Current 100mA
8.3 Tx Part
Tx Power 20W/5W @ 13.8V DC
Frequency Stability ± 2.5ppm
Max. Modulation Deviation ± 5kHz / ± 2.5kHz
Modulation Distortion (300-3000Hz) 3%
Adjacent Channel Tx Power W: 70dB/ N 60dB
Spurious Emission 70dB
Residual FM W: -45dB/N: -40dB
Tx Current Consumption 7A @ 13.8V DC
Chapter 9 Troubleshooting
No. Problem Causes and Solutions
1 Power on
Failure
A. The power cable is not reliably connected with the
accumulator or the radio, please reconnect it.
B. The fuse of the power cable is burnt out. Please
change it.
C. The power button is in poor contact. Please change
the rubber key or change the key PCB.
D. The accumulator is out of power. Please charge it
or change a new one.

PT8000 Service Manual
16
E. The CPU is broken, please change the IC.
2 PLL
unlocked
(Beeping)
A. Channel frequency goes beyond the limit, please
reset the channel data.
B. The PLL crystal oscillator X1 is broken. Please change
it.
C. The oscillator transistor is broken. Please change
it.
D. The PLL IC3 is broken. Please change it.
3 Cannot talk to
or hear other
radios
A. The frequency of the radio’s current channel is not
the same as 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.
4 No signal A. The antenna is in poor contact. Please fasten the
antenna until secure.
B. The high-frequency amplifying tube Q18 is
broken. Please change it.
C. The squelch level is too high and the squelch cannot be
opened. Please reset the squelch level.
D. The mixing tube Q19 is broken. Please change it.
E. The FM processing chip IC6 is broken. Please
change it.
5 LED lights red
while
transmitting,
but no voice is
heard by the
recipient.
A. Power module IC1 is broken, so there is no power
output, please change the module.
B. The microphone is broken, please change it.
6 LED lights
green while
receiving, but
no voice is
heard.
A. The speaker is broken. Please change it.
B. The audio power amplifier IC7 is broken. 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
E2PROM: 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
No. Part No. Description PCS Position Mark
1 101-08000U-R03 PT8000PCB / PT8000U-080403.PCB, ROHS 1
2 102-0R8C2A-R01 MCU/ R8C/2A, R5F212A8SNFP, PLQP-64, ROHS 1 IC11
3 102-304452-R01 Power module / RA30H4452M，ROHS 1 IC1
4 102-9140NR-R01 MOS IC / PST9140NR, ROHS 1 IC12
5 102-A1519C-R01 MOS IC / TDA1519C, SIL9, ROHS 1 IC7
6 102-A31136-R01 MOS IC / TA31136FN,SSOP,ROHS 1 IC6
7 102-AT2408-R01 MOS IC / AT24C08AN-SU27,ROHS 1 IC15
8 102-B15E03-R01 MOS IC / MB15E03SL,PLL,16-PIN,SSOP,ROHS 1 IC3
9 102-FP3502-R01 MOS IC / XC62FP3502PR,SOT-89,ROHS 1 IC2
10 102-HT9172-R01 MOS IC / HT9172,SOP,ROHS 1 IC5
11 102-M2902V-R01 MOS IC / NJM2902V,OP-AMP,ROHS 3 IC8, IC9, IC13
12 102-M2904V-R01 MOS IC / NJM2904V,OP-AMP,ROHS 1 IC4
13 102-M78L05-R01 MOS IC / NJM78L05UA, ROHS 1 IC17
14 102-TA7808-R01 MOS IC / TA7808S,TO-220, ROHS 1 IC16
15 103-0DA221-R01 Chip diode / DA221(ROHM), ROHS 1 D13
16 103-0MA742-R01 Chip diode / MA742(PANASONIC),ROHS 3 D9, D10, D25
17 103-1SS372-R01 Chip diode / 1SS372(TOSHIBA),ROHS 1 D32

PT8000 Service Manual
17
18 103-1SV278-R01 Chip variable capacitor diode/ 1SV278,ROHS 1 D8
19 103-A2S111-R01 Chip diode / 0603,MA2S111(PANASONIC),ROHS 3 D12, D15, D22
20 103-AP1250-R01 Chip diode / MA4P1250-1072T,ROHS 2 D3, D11
21 103-DAN222-R01 Chip diode / DAN222,(ROHM),ROHS 3 D20, D21, D33
22 103-HSC277-R01 Chip diode/wave band switch, HSC277(HITACHI), ROHS 2 D2, D19
23 103-HVC355-R02 Chip variable capacitor diode/0603, HVC355B(HITACHI), ROHS 1 D23
24 103-HVC376-R01 Chip variable capacitor diode/ HVC376B, ROHS 13 D1, D4, D5, D6, D14, D16, D17, D18, D26, D27, D28, D29, D30
25 103-HZU5AL-R01 Chip diode / HZU5ALL(HITACHI), ROHS 1 D7
26 103-SM3MA1-R01 Chip diode / DSM3MA1,ROHS 1 D34
27 104-A144EE-R01 Chip capacitor / DTA144EE(ROHM), ROHS 5 Q15, Q23, Q29, Q35, Q36
28 104-C144EE-R01 Chip capacitor / DTC144EE(ROHM), ROHS 12 Q9, Q10, Q17, Q22, Q24, Q25, Q28, Q37, Q42, Q43, Q44, Q47
29 104-MT717T-R01 Chip capacitor / FMMT717TA, ROHS 1 Q39
30 104-SC3357-R01 Chip capacitor / 2SC3357, ROHS 2 Q4, Q5
31 104-SC4116-R01 Chip capacitor / 2SC4116-GR, ROHS 2 Q3, Q13
32 104-SC4617-R01 Chip capacitor / 2SC4617(S)(ROHM), ROHS 4 Q14, Q21, Q26, Q31
33 104-SC4919-R01 Chip capacitor / 2SC4919, MUTING, CIRCUIT(SANYO), ROHS 1 Q32
34 104-SC5108-R01 Chip capacitor / 2SC5108Y(TOSHIBA), ROHS 5 Q1, Q2, Q7, Q11, Q20
35 104-TA1298-R01 Chip capacitor / KTA1298(Y), ROHS 2 Q38, Q40
36 105-2SK508-R01 FET / 2SK508NV(K52), ROHS 2 Q6, Q12
37 105-3SK318-R01 FET / 3SK318, ROHS 2 Q18, Q19
38 105-SK1824-R01 FET / 2SK1824, ROHS 5 Q30, Q33, Q34, Q45, Q46
39 105-SK1829-R01 FET / 2SK1829, ROHS 1 Q16
40 108-450C24-R02 450kHz Phase Frequency Detector/JTBM450CX24, ROHS 1 CD1
41 108-CF450F-R01 Plug-in porcelain filter/LTM450FW, 450kHz±7kHz, ROHS 1 CF2
42 108-CF450H-R01 Plug-in porcelain filter/LTM450HT, 450kHz±3kHz, ROHS 1 CF1
43 108-XF4995-R01 Plug-in IF filter / 49.95MHz±7.5KHz,U-5*2, ROHS 1 XF1, XF2
44 109-040000-R01 Chip resistor / 0402,0R±5%, ROHS 22 C134, C135, C162, C289, R66, R72, R145, R149, R172, R186, R196, R197,
R222, R223, R229, R238, R242, R252, R257, R268, R282, R287
45 109-040100-R01 Chip resistor / 0402,10R±5%, ROHS 6 R2, R3, R71, R82, R84, R219
46 109-040101-R01 Chip resistor / 0402,100R±5%, ROHS 5 R21, R26, R101, R121, R247
47 109-040102-R01 Chip resistor / 0402,1K±5%,ROHS 16 R9, R48, R70, R78, R83, R136, R188, R194, R201, R206, R231, R235, R254,
R266, R270, R292
48 109-040103-R01 Chip resistor / 0402,10K±5%, ROHS 23 R10, R12, R13, R15, R20, R24, R35, R62, R65, R68, R74, R79, R81, R112,
R174, R210, R228, R233, R237, R280, R283, R284, R285
49 109-040104-R01 Chip resistor / 0402,100K±5%, ROHS 18 R40, R52, R53, R60, R64, R67, R80, R92, R117, R123, R199, R208, R225,
R236, R239, R248, R269, R273
50 109-040105-R01 Chip resistor / 0402,1M±5%, ROHS 10 R128, R130, R131, R132, R133, R137, R139, R147, R192, R277
51 109-040122-R01 Chip resistor / 0402,1.2K±5%, ROHS 2 R152, R267
52 109-040123-R01 Chip resistor / 0402,12K±5%, ROHS 2 R88, R245
53 109-040124-R01 Chip resistor / 0402,120K±5%, ROHS 2 R150, R175
54 109-040151-R01 Chip resistor / 0402,150R±5%, ROHS 2 R63, R111
55 109-040153-R01 Chip resistor / 0402,15K±5%, ROHS 6 R49, R50, R56, R155, R162, R272
56 109-040154-R01 Chip resistor / 0402,150K±5%, ROHS 5 R6, R11, R27, R140, R216
57 109-040183-R01 Chip resistor / 0402,18K±5%, ROHS 4 R198, R207, R217, R259
58 109-040184-R01 Chip resistor / 0402,180K±1%, ROHS 3 R169, R170, R221
59 109-040184-R02 Chip resistor / 0402,180K±5%, ROHS 2 R93, R143
60 109-040204-R01 Chip resistor / 0402,200K±5%, ROHS 1 R69
61 109-040220-R01 Chip resistor / 0402,22R±5%, ROHS 3 R33, R37, R103
62 109-040221-R01 Chip resistor / 0402,220R±5%, ROHS 1 R115
63 109-040223-R01 Chip resistor / 0402,22K±5%, ROHS 8 R85, R86, R106, R109, R110, R153, R171, R215
64 109-040224-R01 Chip resistor / 0402,220K±5%, ROHS 2 R183, R213
65 109-040241-R01 Chip resistor / 0402,240R±5%, ROHS 1 R61
66 109-040272-R01 Chip resistor / 0402,2.7K±5%, ROHS 3 R1, R57, R148
67 109-040273-R01 Chip resistor / 0402,27K±5%, ROHS 4 R59, R161, R177, R205
68 109-040274-R01 Chip resistor / 0402,270K±5%, ROHS 3 R42, R141, R164
69 109-040331-R01 Chip resistor / 0402,330R±5%, ROHS 2 R14, R43
70 109-040332-R01 Chip resistor / 0402,3.3K±5%, ROHS 5 R124, R142, R146, R159, R173
71 109-040333-R01 Chip resistor / 0402,33K±5%, ROHS 5 R151, R156, R157, R185, R249
72 109-040334-R01 Chip resistor / 0402,330K±5%, ROHS 4 R73, R108, R134, R230
73 109-040363-R01 Chip resistor / 0402,36K±5%, ROHS 1 R98
74 109-040392-R01 Chip resistor / 0402,3.9K±5%, ROHS 2 R271, R279
75 109-040393-R01 Chip resistor / 0402,39K±5%, ROHS 1 R278

PT8000 Service Manual
18
76 109-040394-R01 Chip resistor / 0402,390K±5%, ROHS 2 R202, R220
77 109-040433-R01 Chip resistor / 0402,43K±5%, ROHS 2 R160, R163
78 109-040471-R01 Chip resistor / 0402,470R±5%, ROHS 1 R100
79 109-040472-R01 Chip resistor / 0402,4.7K±5%ROHS 13 R5, R16, R39, R76, R77, R91, R179, R187, R191, R195, R288, R289, R290
80 109-040473-R01 Chip resistor / 0402,47K±5%, ROHS 8 R75, R89, R105, R126, R127, R129, R293, R294
81 109-040474-R01 Chip resistor / 0402,470K±5%, ROHS 3 R96, R165, R204
82 109-040560-R01 Chip resistor / 0402,56R±5%,ROHS 1 R135
83 109-040561-R01 Chip resistor / 0402,560R±5%, ROHS 3 R51, R54, R55
84 109-040562-R01 Chip resistor / 0402,5.6K±5%, ROHS 6 R178, R184, R193, R212, R241, R260
85 109-040563-R01 Chip resistor / 0402,56K±5%, ROHS 6 R97, R125, R232, R258, R263, R275
86 109-040564-R01 Chip resistor / 0402,560K±5%,ROHS 2 R99, R243
87 109-040682-R01 Chip resistor / 0402,6.8K±5%, ROHS 5 R94, R95, R113, R114, R244
88 109-040683-R01 Chip resistor / 0402,68K±5%, ROHS 3 R118, R264, R274
89 109-040684-R01 Chip resistor / 0402,680K±5%, ROHS 1 R209
90 109-040821-R01 Chip resistor / 0402,820R±5%, ROHS 1 R255
91 109-040824-R01 Chip resistor / 0402,820K±5%, ROHS 1 R224
92 109-040913-R01 Chip resistor / 0402,91K±5%, ROHS 1 R190
93 109-060000-R01 Chip resistor / 0603,0R±5%, ROHS 2 L52, L62
94 109-060100-R01 Chip resistor / 0603,10R±5%, ROHS 2 R29, R30
95 109-060102-R01 Chip resistor / 0603,1K±5%, ROHS 2 R18, R19
96 109-060121-R01 Chip resistor / 0603,120R±5%, ROHS 1 R41
97 109-060151-R01 Chip resistor / 0603,150R±5%, ROHS 1 R4
98 109-060221-R01 Chip resistor / 0603,220R±5%, ROHS 1 R45
99 109-060271-R01 Chip resistor / 0603,270R±5%, ROHS 1 R44
100 109-060272-R01 Chip resistor / 0603,2.7K±5%, ROHS 1 R34
101 109-060274-R01 Chip resistor / 0603,270K±5%, ROHS 1 R36
102 109-060471-R01 Chip resistor / 0603,470R±5%, ROHS 1 R32
103 109-0605R6-R01 Chip resistor / 0603,5.6R±5%, ROHS 1 R8
104 109-060681-R01 Chip resistor / 0603,680R±5%, ROHS 1 R58
105 109-060821-R01 Chip resistor / 0603,820R±5%, ROHS 2 R22, R23
106 109-070000-R01 Chip resistor / 0805,0R±5%, ROHS 1 L29
107 109-070220-001 Chip resistor / 0805,22R±5% 1 L30
108 109-070470-001 Chip resistor / 0805,47R±5% 1 L31
109 109-100221-R01 Chip resistor / 1206,220R±5%, ROHS 2 R46, R47
110 110-110473-R01 Chip trimming resistor / MVR22HXBRN473, 47K±25%, B Linear,
ROHS
1 VR2
111 110-110683-R01 Chip trimming resistor / MVR22HXBRN683, 68K±25%, B Linear,
ROHS
1 VR1
112 111-010000-R01 Plug-in voltage-dependent resistor / 10D220，ROHS 1 R281
113 111-030000-R01 Chip Fuse / 433003,3A/32V,1206(former 429003)，ROHS 1 F1
114 112-043100-R01 Chip capacitor / 0402,10P±0.5P, 50V, C0G, ROHS 6 C7, C53, C80, C138, C139, C307
115 112-043101-R01 Chip capacitor / 0402, 100P±5%, 50V, C0G, ROHS 24 C36, C37, C81, C90, C91, C99, C103, C105, C108, C112, C114, C115, C349,
C350, C351, C352, C353, C354, C356, C359, C360, C361, C362, C363
116 112-043102-R01 Chip capacitor / 0402,1000P±10%,50V,X7R,ROHS 17 C58, C167, C170, C171, C188, C189, C195, C196, C206, C212, C214, C221,
C231, C266, C311, C321, C370
117 112-043103-R01 Chip capacitor / 0402,0.01uF±10%,50V,X7R,ROHS 13 C33, C102, C121, C133, C145, C153, C191, C242, C256, C284, C297, C330,
C333
118 112-043104-002 Chip capacitor / 0402,0.1uF±10%,10V,X5R 1 C173
119 112-043104-R02 Chip capacitor / 0402,0.1uF±10%,10V,X5R,ROHS 27 C17, C83, C144, C172, C183, C184, C186, C187, C210, C211, C213, C235,
C253, C259, C261, C268, C270, C271, C295, C300, C308, C319, C325, C329,
C334, C337, C338
120 112-043105-R01 Chip capacitor / 0402,1uF±10%,6.3V,X5R,ROHS 13 C56, C120, C267, C278, C280, C291, C298, C303, C304, C312, C323, C335,
C336
121 112-043110-R01 Chip capacitor / 0402,11P±5%,50V,C0G,ROHS 1 C197
122 112-043120-R01 Chip capacitor / 0402,12P±5%,50V,C0G,ROHS 5 C2, C16, C106, C118, C194
123 112-043123-R01 Chip capacitor / 0402,0.012uF±10%,50V,X7R,ROHS 5 C249, C252, C258, C263, C273
124 112-043150-R01 Chip capacitor / 0402,15P±5%,50V,C0G,ROHS 3 C13, C190, C198
125 112-043180-R01 Chip capacitor / 0402,18P±5%,50V,C0G,ROHS 1 C204
126 112-043182-R01 Chip capacitor / 0402,1800P±10%,50V,X7R,ROHS 1 C217
127 112-0431R0-R01 Chip capacitor / 0402,1P±0.25P,50V,C0G,ROHS 3 C69, C70, C175
128 112-0431R5-R01 Chip capacitor / 0402,1.5P±0.25P,50V,C0G,ROHS 1 C203
129 112-043220-R01 Chip capacitor / 0402,22P±5%,50V,C0G,ROHS 8 C27, C28, C82, C97, C98, C168, C272, C281