3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU PTR/SPLY 6TW J21 121VU CFDS/CFDIU/SPLY 2TW J18 R 121VU AUTO FLT/MCDU/2 11CA2 N20
R **ON A/C ALL
R Post SB 31-1163 For A/C 155-156,208-209,
R 121VU CFDS/CFDIU/BACK/UP 8TW J17
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-35-00∞∞∞∞∞∞∞∞∞∞Page 230
Feb 01/05 CES
R **ON A/C ALL
B. Test
On the MCDU2:
- get the CFDS page on the MCDU MENU and then push the line key adjacent to the PRINT indication.
4. Fault Isolation
_______________
A. If it is not possible to print the CFDIU data on the printer (4TW):
- replace the PRINTER (4TW) (Ref. AMM TASK 31-35-22-000-001) and (Ref. AMM TASK 31-35-22-400-001).
(1) If the fault continues:
- replace the CFDIU (1TW) (Ref. AMM TASK 31-32-34-000-001) and (Ref. AMM TASK 31-32-34-400-001).
(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 (Ref. ASM 31-35/01).
1 If there is no continuity:
_ - repair the wiring.
2 If there is continuity:
_
- do a check of the wiring from MCDU2 (3CA2) pins A/27, 28 to CFDIU (1TW) pins AB/3B, 2C (Ref. ASM 22-86/04).
a If there is no continuity:
_ - repair the wiring.
b If there is continuity:
_
- replace the MCDU-2 (3CA2) (Ref. AMM TASK 22-82-12-000-001) and (Ref. AMM TASK 22-82-12-400-002).
B. Do the action given in Para. 3.B.
Failure of the Printer
1. Possible Causes
_______________
- PRINTER (4TW)
- wiring
- C/B-PRINTER/SPLY
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-35-22-000-001 Removal of the Printer (4TW)
AMM 31-35-22-400-001 Installation of the Printer (4TW)
ASM 31-35/01
3. Fault Confirmation
__________________
A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
121VU PTR/SPLY 6TW J21
B. Test
Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. Do a check of the status of the circuit breaker (6TW).
(1) If the circuit breaker (6TW) is closed:
- replace the PRINTER (4TW) (Ref. AMM TASK 31-35-22-000-001) and (Ref. AMM TASK 31-35-22-400-001).
(a) If the fault continues:
- do a check of the wiring from printer (4TW) pin A/R to the circuit breaker (6TW) (Ref. ASM 31-35/01).
1 If there is no continuity:
_
- repair the wiring.
2 If there is continuity:
_ - replace the C/B-PRINTER/SPLY.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞31-35-00∞∞∞∞∞∞∞∞∞∞Page 232
May 01/03 CES (2) If the circuit breaker (6TW) is open:
a_ If the fault continues:
- do a check and repair the wiring from printer (4TW) pin
A/N to the first terminal block.
- close the circuit breaker (6TW).
(a) If the circuit breaker trips:
- replace the PRINTER (4TW) (Ref. AMM TASK 31-35-22-000-001) and (Ref. AMM TASK 31-35-22-400-001).
1 If the fault continues:
_
- do a check and repair the wiring from the circuit breaker (6TW) to the printer (4TW).
(b) If the circuit breaker stays closed and if the fault continues:
- replace the PRINTER (4TW) (Ref. AMM TASK 31-35-22-000-001) and (Ref. AMM TASK 31-35-22-400-001).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 指示和记录系统 1(76)
