DOC AIRBUS | TSM A320FLCD Monitor Failure
TASK 23-72-00-810-808-A
LCD Monitor Failure
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 23-72-00-740-052-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-72-00-810-073-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:25:48 UTC
LCD Monitor Failure
1. Possible Causes
- MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA]
- CAMERA- COCKPIT DOOR [12RA]
- CAMERA- DR 1, LH [13RA]
- CAMERA- DR 1, RH [14RA]
- wiring
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 23-72-00-740-001 | BITE Test of the Anti-Hijack Camera-Monitoring-System |
| ASM 237201 | |
| AMM 23-72-22-000-001 | Removal of the Cockpit-Door Surveillance-System Monitor |
| AMM 23-72-22-400-001 | Installation of the Cockpit-Door Surveillance-System Monitor |
| AMM 23-72-51-000-001 | Removal of the Anti-Hijack-System Cameras |
| AMM 23-72-51-400-001 | Installation of the Anti-Hijack-System Cameras |
Subtask 23-72-00-740-052-A ** ON A/C NOT FOR ALL 4. Fault Isolation
Subtask 23-72-00-810-073-A ** ON A/C NOT FOR ALL
A. If the LED flashes and the message "Display/Controller Failure" shows on the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] :
Subtask 23-72-00-810-074-A ** ON A/C NOT FOR ALL - replace the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] , AMM 23-72-22-000-001 and AMM 23-72-22-400-001.
B. If the LED flashes and the message "Display/Pin Programming Fail" shows on the LCD monitor:
Subtask 23-72-00-810-075-A ** ON A/C NOT FOR ALL - replace the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] , AMM 23-72-22-000-001 and AMM 23-72-22-400-001.
- replace the CAMERA- COCKPIT DOOR [12RA] , the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , AMM 23-72-51-000-001 AMM 23-72-51-400-001.
- do a check and if necessary repair the wiring between the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] and the CAMERA- COCKPIT DOOR [12RA] , and the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , ASM 237201.
C. If the LED flashes and the message "Pin Programming Changed" shows on the LCD monitor:
Subtask 23-72-00-810-076-A ** ON A/C NOT FOR ALL - replace the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] , AMM 23-72-22-000-001 and AMM 23-72-22-400-001.
- replace the CAMERA- COCKPIT DOOR [12RA] , the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , AMM 23-72-51-000-001 and AMM 23-72-51-400-001.
- do a check and if necessary repair the wiring between the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] and the CAMERA- COCKPIT DOOR [12RA] , and the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , ASM 237201.
D. If the LED flashes and no message shows on the LCD monitor:
Subtask 23-72-00-700-056-A ** ON A/C NOT FOR ALL - replace the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] , AMM 23-72-22-000-001 and AMM 23-72-22-400-001.
- replace the CAMERA- COCKPIT DOOR [12RA] , the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , AMM 23-72-51-000-001 and AMM 23-72-51-400-001.
- do a check and if necessary repair the wiring between the MONITOR- COCKPIT DOOR SURVEILLANCE SYSTEM [10RA] and the CAMERA- COCKPIT DOOR [12RA] , and the CAMERA- DR 1, LH [13RA] and the CAMERA- DR 1, RH [14RA] , ASM 237201.
E. Do the test given in Para. 3.