DOC AIRBUS | TSM A320FLoss of the DU Brightness Control
TASK 31-63-82-810-849-A
Loss of the DU Brightness Control
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 31-63-82-740-078-A ** ON A/C NOT FOR ALL
Subtask 31-63-82-810-134-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:31:17 UTC
Loss of the DU Brightness Control
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 31-60-00-710-003 | PFD/ND/Upper and Lower ECAM Display Units (DU) - Brightness |
| AMM 31-60-00-740-010 | Operational Check of Brightness Control Through MCDU |
Subtask 31-63-82-740-078-A ** ON A/C NOT FOR ALL
A. Do the operational check of brightness control of the PFD/ND/Upper and Lower ECAM Display Units (DU) AMM 31-60-00-710-003.
Subtask 31-63-82-740-078-B ** ON A/C NOT FOR ALL 4. Fault IsolationSubtask 31-63-82-810-134-A ** ON A/C NOT FOR ALL
A. If you cannot do the operational test:
Subtask 31-63-82-810-134-B ** ON A/C NOT FOR ALL - refer to the log book for crew observations related to DU brightness control.
- do a check for maintenance messages related to DUs.
- no maintenance action is required.
A. If you cannot do the operational test:
- refer to the log book for crew observations related to DU brightness control.
- do a check for maintenance messages related to DUs.
NOTE: You can find the related trouble shooting procedure(s) in the applicable P.Block 201.
(2) If the log book does not give crew observations related to DU brightness control: - no maintenance action is required.