- Sunpentown Intl. Inc. Telephone User Manual

8. 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.
EPFS 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.
6.5 Parts Location
Transceiver unit FM-8800D/8800S
PWR pcb
05P0776
TX/RX pcb
05P0774
DUPLEXER
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