3. Fault Confirmation
__________________
A. Test Do the BITE test of the ADF (system 2) (Ref. AMM TASK 34-53-00-740-003).
4. Fault Isolation
_______________
A. If the test gives the maintenance message
DMC1/2/3 (1WT1/2/3)/DDRMI (1FN)/ADF2 (2RP2):
- replace the RMI-VOR/ADF/DME (21FN) (Ref. AMM TASK 34-57-22-000-002) and (Ref. AMM TASK 34-57-22-400-002).
(1) If the fault continues:
- remove the VOR/ADF/DME RMI
- do a check and repair the wiring between the VOR/ADF/DME RMI and the first terminal block: for pins A/31 and 32 of the VOR/ADF/DME RMI (Ref. ASM 34-53/01)
- install the VOR/ADF/DME RMI.
B. Do the test given in para. 3.
「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 : 106-149, 201-299, 301-399, 401-499, ∞∞34-53-00∞∞∞∞∞∞∞∞∞∞Page 259
Aug 01/05 CESR **ON A/C 001-049, 051-060, 101-101,
TASK 34-53-00-810-832
Intermittent Failure of the ADF1
1. Possible Causes
_______________
- RECEIVER-ADF, 1 (2RP1)
- ANTENNA-ADF LOOP AND SENSE, 1 (3RP1)
- wiring of the pin program
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 34-53-11-000-001 Removal of the ADF Loop and Sense Antenna
AMM 34-53-11-400-001 Installation of the ADF Loop and Sense Antenna
AMM 34-53-31-000-002 Removal of the ADF Receiver (2RP1, 2RP2)
AMM 34-53-31-400-002 Installation of the ADF Receiver (2RP1, 2RP2)
ASM 34-53/01
AWM 34-53-03
3. Fault Confirmation
__________________
A. Test
Not applicable, you cannot confirm this fault on the ground.
4. Fault Isolation
_______________
A. If the fault symptom is identified by the crew observation ADF-incorrect ADF1 data shown on the NDs:
- remove the RECEIVER-ADF, 1 (2RP1) (Ref. AMM TASK 34-53-31-000-002)
- do a check of the resistance between pins 7D and 8D on the plug of the rack connector (Ref. ASM 34-53/01).
(1) If the resistance value is more than 6 ohms:
- replace the ANTENNA-ADF LOOP AND SENSE, 1 (3RP1) (Ref. AMM TASK 34-53-11-000-001) (Ref. AMM TASK 34-53-11-400-001)
- install the RECEIVER-ADF, 1 (2RP1) (Ref. AMM TASK 34-53-31-400-002).
「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, 051-060, 101-101, ∞∞34-53-00∞∞∞∞∞∞∞∞∞∞Page 260
May 01/05 CES
(2) If the resistance value is less than or equal to 6 ohms:
- do a check of the resistance between pins 14D and 15D on the plug of the rack connector.
(a) If the resistance value is more than 6 ohms:
- replace the ANTENNA-ADF LOOP AND SENSE, 1 (3RP1)
- install the RECEIVER-ADF, 1 (2RP1) (Ref. AMM TASK 34-53-31-400-002).
(3) If the fault continues:
- remove the RECEIVER-ADF, 1 (2RP1) (Ref. AMM TASK 34-53-31-000-002)
- Make sure that the electrical connectors are clean and in the correct condition.
- do a check and repair if necessary the wiring of the pin program of the RECEIVER-ADF, 1 (2RP1) (Ref. AWM 34-53-03).
- install the RECEIVER-ADF, 1 (2RP1) (Ref. AMM TASK 34-53-31-400-002).
TASK 34-53-00-810-833
Intermittent Failure of the ADF2
1. Possible Causes
_______________
- RECEIVER-ADF, 2 (2RP2)
- ANTENNA-ADF LOOP AND SENSE, 2 (3RP2)
- wiring of the pin program
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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