W DOC AIRBUS | TSM A320F

Printing of the CFDIU Data not possible from the MCDU1

TASK 31-35-00-810-810-A
Printing of the CFDIU Data not possible from the MCDU1

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
ASM 228604
AMM 31-32-34-000-001
Removal of the CFDIU
AMM 31-32-34-400-001
Installation of the CFDIU
ASM 313501
AMM 31-35-22-000-001
Removal of the Printer
AMM 31-35-22-400-001
Installation of the Printer
3. Fault Confirmation
Subtask 31-35-00-865-059-A
A. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUAUTO FLT/MCDU/111CA1B01
121VUPTR/SPLY6TWJ21
121VUCFDS/CFDIU/SPLY2TWJ18
121VUCFDS/CFDIU/BACK/UP8TWJ17
Subtask 31-35-00-710-068-A
B. Test
On the MCDU1:
  • get the CFDS page on the MCDU MENU and then push the line key adjacent to the PRINT indication.
4. Fault Isolation
Subtask 31-35-00-810-059-A
A. If it is not possible to print the CFDIU data on the printer (4TW):
   (1) If the fault continues:
     (a) If the fault continues:
  • do a check of the wiring from CFDIU (1TW) pins AA/2B, 2C to printer (4TW) pins A/h, i ASM 313501.
       1 If there is no continuity:
  • repair the wiring.
       2 If there is continuity:
  • do a check of the wiring from MCDU1 (3CA1) pins A/27, 28 to CFDIU (1TW) pins AA/3H, 3J ASM 228604.
         a If there is no continuity:
  • repair the wiring.
         b If there is continuity:
Subtask 31-35-00-710-069-A
B. Do the action given in Para. 3.B.
[Rev.8 from Aug 2018] 2026.04.04 04:30:01 UTC
"WTRUIB" 2025