Kirisun PT8000, Service Manual

Page: 18 / 32

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
E
2
PROM: Electrical Erasable Programmable Read Only Memory
HPF: High Pass Filter
IDC: Instantaneous Deviation Control
IF: Intermediate Frequency
LED: Light-Emitting Diode
LNA: Low Noise Amplifier
LPF: Low Pass Filter
MCU: Micro Control Unit
MIC: Microphone
MOD: Modulation
MONI: Monitor
PLL: Phase Lock Loop
PTT: Push-to-talk
RX: Receiver
SPK: Speaker
TCXO: Temperature Controlled Crystal Oscillators
TX: Transmitter
UL: Un-lock
VCO: Voltage Control Oscillator
Appendix 2 Electronic Parts List
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