Blank screen on the MCDU 2

TASK 22-82-00-810-829-A
Blank screen on the MCDU 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-82-12-000-001	Removal of the MCDU
AMM 22-82-12-400-002	Installation of the MCDU

3. Fault Confirmation
Subtask 22-82-00-865-065-A

A. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	AUTO FLT/MCDU/2	11CA2	N20

Subtask 22-82-00-710-105-A

B. Test
On the MCDU 2, make sure that the BRT knob is in the middle position.

4. Fault Isolation
Subtask 22-82-00-810-086-A

A. If the screen of the MCDU 2 is blank:

do a C/B reset (11CA2) of the MCDU 2
if the screen stays blank, replace the MCDU-2 [3CA2] , AMM 22-82-12-000-001 and AMM 22-82-12-400-002.

[Rev.8 from Aug 2018] 2026.04.04 04:25:28 UTC