(2TU) AMM 31-33-34-400-001 Installation of the Flight Data Interface Unit (FDIU)
(2TU)
ASM 31-33/01
ASM 31-34/00
3. Fault Confirmation
__________________
A. Do the FDIU (2TU) fault monitoring test via the CFDS (Ref. AMM TASK 31-33-00-710-006).
4. Fault Isolation
_______________
A. If the FDIU (2TU) test gives the maintenance message FDIU:
(1) Make sure that the Circuit Breaker 8TU is closed.
(2) Do a check for 115 VAC at the FDIU (2TU) connectors AC/1 and AC/7 (Ref. ASM 31-33/01).
(3) If there is 115 VAC:
(a) Do a check and repair the wiring as necessary (Ref. ASM 31-34/00) between:
- FDIU (2TU) connector AA/15A and AMU (1RN) pin 2J
- FDIU (2TU) connector AA/15B and AMU (1RN) pin 2K.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-105, 151-199, ∞∞31-33-00∞∞∞∞∞∞∞∞∞∞Page 204
201-210, May 01/05 CES
(b) If the failure continues replace the FDIU (2TU) (Ref. AMM TASK 31-33-34-000-001) (Ref. AMM TASK 31-33-34-400-001).
(c) If the failure continues replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) (Ref. AMM TASK 23-51-34-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-105, 151-199, ∞∞31-33-00∞∞∞∞∞∞∞∞∞∞Page 205
201-210, May 01/05 CES
(4) If there is no 115 VAC:
(a) Do a check and repair the wiring as necessary (Ref. ASM 31-33/01) between:
- CB 8TU and FDIU (2TU) connector AC/1
- FDIU (2TU) connector AC/7 and ground
- FDIU (2TU) connector AA/15J and ground
- FDIU (2TU) connector AA/15K and ground
- FDIU (2TU) connector AB/15K and ground
- FDIU (2TU) connector AB/15J and ground
- FDIU (2TU) connector AB/9B and SDAC 1 (1WV1), SDAC 2 (1WV2) at connector AA/10K
- FDIU (2TU) connector AB/9E and CFDIU (1TW) connector AB/11D
- FDIU (2TU) connector AB/9F and CFDIU (1TW) connector AB/11E
- FDIU (2TU) connector AB/9J and CFDIU (1TW) connector AB/8B
- FDIU (2TU) connector AB/9K and CFDIU (1TW) connector AB/8C.
B. Do the test given in paragraph 3.A. again to check the correct operation (no maintenance message display).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-105, 151-199, ∞∞31-33-00∞∞∞∞∞∞∞∞∞∞Page 206
201-210, May 01/05 CES
TASK 31-33-00-810-803
QAR (3TU) Inoperative
1. Possible Causes
_______________
- QAR (3TU)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-33-00-710-005 Operational Test of the QAR
AMM 31-33-52-000-001 Removal of the Quick Access Recorder (QAR) (3TU)
AMM 31-33-52-400-001 Installation of the Quick Access Recorder (QAR) (3TU)
ASM 31-33/01
3. Fault Confirmation
__________________
A. Do the Operational Test of the QAR (Ref. AMM TASK 31-33-00-710-005).
4. Fault Isolation
_______________ R **ON A/C 001-049, 101-105, 208-209,
A. If the test gives the maintenance message QAR:
- make sure that the CBs 8TU and 9TU are closed,
- do a check for 28 VDC at the QAR (3TU) connectors AA/6D and AA/5K (Ref. ASM 31-33/01),
- do a check for 115 VAC at the QAR (3TU) connectors AC/1 and AC/4 (Ref. ASM 31-33/01).
(1) If there is 28 VDC and 115 VAC:
- replace the QAR (3TU) (Ref. AMM TASK 31-33-52-000-001) and (Ref. AMM TASK 31-33-52-400-001).
(2) If there is no 28 VDC:
- do a check and repair if necessary the wiring (Ref. ASM 31-33/01), between:
「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 ∞∞31-33-00∞∞∞∞∞∞∞∞∞∞Page 207
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