Error Message; Parts Location - Furuno FM-8800D Operator's Manual

6.4

Error Message

The table below shows all the error messages which may appear.
Error message
PLL1 Unlock
PLL2 Unlock
ANT ERROR
GPS ERROR
System Error
Printer PE
Note: If the CPU is abnormal, the beep sounds continuously until turning off the
power.
6.5

Parts Location

Transceiver unit FM-8800D/8800S
PWR pcb
05P0776
DUPLEXER
PLL circuit on the TX/RX pcb 05P0774 has unlocked.
PLL circuit on the DUP RX pcb 05P0777 has unlocked (only
FM-8800D).
The antenna is abnormal. In this condition, if the
transmission continues more than five seconds, the output
power is reduced to approximately 10W.
There is no L/L input from a positioning sensor for more than
one minute.
The DSP (digital signal processor) is abnormally.
Printer is disconnected or paper runs out.
FM-8800D
Top cover removed
PANEL pcb
05P0772
DUP RX pcb
05P0777
CH70 RX pcb
05P0775
Bottom cover removed
6. MAINTENANCE & TROUBLESHOOTING
Meaning
FM-8800S
CPU pcb
05P0773
FM-8800S/D
TX/RX pcb
05P0774
6-3