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6. MAINTENANCE & TROUBLESHOOTING
6-3
6.4 Error Message
The table below shows all the error messages which may appear.
Error message Meaning
PLL1 Unlock PLL circuit on the TX/RX pcb 05P0774 has unlocked.
PLL2 Unlock PLL circuit on the DUP RX pcb 05P0777 has unlocked (only
FM-8800D).
ANT ERROR The antenna is abnormal. In this condition, if the
transmission continues more than five seconds, the output
power is reduced to approximately 10W.
GPS ERROR There is no L/L input from a positioning sensor for more than
one minute.
System Error The DSP (digital signal processor) is abnormally.
Printer PE Printer is disconnected or paper runs out.
Note: If the CPU is abnormal, the beep sounds continuously until turning off the
power.
6.5 Parts Location
Transceiver unit FM-8800D/8800S
DUPLEXER
PWR pcb
05P0776
TX/RX pcb
05P0774
FM-8800D
FM-8800S
Top cover removed
PANEL pcb
05P0772
DUP RX pcb
05P0777
CH70 RX pcb
05P0775
CPU pcb
05P0773
FM-8800S/D
Bottom cover removed