(a) If the voltage is not between 4.8VDC and 5.2VDC:
- disconnect the electrical connector (28HHA) (Ref. AMM TASK 21-61-51-000-001).
- make sure that the electrical connector is clean and in the correct condition.
- do a check for voltage again.
1 If the voltage is between 4.8VDC and 5.2VDC:
_
- replace the ACTUATOR-AIR INLET FLAP (28HH) (Ref. AMM TASK 21-61-51-000-001) and (Ref. AMM TASK 21-61-51-400-001).
- connect the electrical connector (28HHA) (Ref. AMM TASK 21-61-51-400-001).
2 If the voltage is not between 4.8VDC and 5.2VDC:
_
- connect the electrical connector (28HHA) (Ref. AMM TASK 21-61-51-400-001).
- repeat para. 4.B.(2).(a) for: connector (29HHA) and the ACTUATOR-AIR OUTLET FLAP (29HH) (Ref. AMM TASK 21-61-52-000-001) and (Ref. AMM TASK 21-61-52-400-001), connector (30HHA) and the VALVE-TURBINE BYPASS (30HH) (Ref. AMM TASK 21-61-53-000-001) and (Ref. AMM TASK 21-61-53-400-001), connector (35HHA) and the SENSOR-COMPRESSOR OVHT (35HH) (Ref. AMM TASK 21-61-12-000-001) and (Ref. AMM TASK 21-61-12-400-001), connector (34HHA) and the SENSOR-PACK OUTLET TEMP (34HH) (Ref. AMM TASK 21-61-15-000-001) and (Ref. AMM TASK 21-61-15-400-001), connector (38HHA) and the SENSOR-BLEED TEMPERATURE (38HH) (Ref. AMM TASK 21-61-17-000-001) and (Ref. AMM TASK 21-61-17-400-001).
(b) If the voltage is between 4.8VDC and 5.2VDC:
- replace the SENSOR-WATER EXTRACTOR TEMPERATURE (31HH) (Ref. AMM TASK 21-61-13-000-001) and (Ref. AMM TASK 21-61-13-400-001).
- connect the electrical connector (31HHA) (Ref. AMM TASK 21-61-13-400-001).
B. If the fault continues:
(1) Disconnect the electrical connector (7557VCA)
(Ref. AMM TASK 21-51-11-000-001) and,
- make sure that the electrical connectors (7557VC) and (7557VCA) are clean and in a good condition.
(a) At the electrical connector (7557VC) do a check for 15VDC at:
- pins A and C and pins D and C, (15VDC from pack controller secondary channel). (Ref. ASM 21-51/01).
「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, 101-149, 151-199, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page A291
201-299, 301-399, Aug 01/05 CES 1 If the voltage is correct:
_
- replace the SENSOR-PRESSURE (9HB). (Ref. AMM TASK 21-51-11-000-001) and (Ref. AMM TASK 21-51-11-400-001).
- connect the electrical connector (7557VCA). (Ref. AMM TASK 21-51-11-400-001).
(2) If the fault continues:
- replace the SENSOR-PACK INLET PRESSURE (36HH) (Ref. AMM TASK 21-61-16-000-001) and (Ref. AMM TASK 21-61-16-400-002).
(3) If the fault continues: - open the CBIs 21HH (W22), 22HH (Y20), 23HH (W21) and 24HH (Y21),
- remove the CONTROLLER-PACK 2 TEMP (27HH)
(Ref. AMM TASK 21-61-34-000-001),
- disconnect the electrical connector (31HHA) (Ref. AMM TASK 21-61-13-000-001) and,
- at the electrical connector (31HHA) do a check for a short circuit between:
* pins C and D and,
* GND and pins C and D.
(Ref. ASM 21-61/02).
(a) If there is a short circuit repair the related wiring between:
- connector (31HHA) pin C and PC 2 connector (27HHAB) pin 2C,
- connector (31HHA) pin D and PC 2 connector (27HHAB) pin 2D. (Ref. ASM 21-61/02).
- connect the electrical connector (31HHA). (Ref. AMM TASK 21-61-13-400-001).
(b) If there is no short circuit connect the electrical connector (31HHA). (Ref. AMM TASK 21-61-13-400-001).
(4) If the fault continues:
- disconnect the electrical connector (28HHA) (Ref. AMM TASK 21-61-51-000-001) and,
- at the electrical connector (28HHA) do a check for a short circuit between:
* pins D and E, D and F, E and F and,
* GND and pins D, E and F.
(Ref. ASM 21-61/02).
(a) If there is a short circuit repair the related wiring between:
- connector (28HHA) pin D and PC 2 connector (27HHAB) pin 3D,
- connector (28HHA) pin E and PC 2 connector (27HHAB) pin 4A,
- connector (28HHA) pin F and PC 2 connector (27HHAB) pin 4B. (Ref. ASM 21-61/02).
- connect the electrical connector (28HHA). (Ref. AMM TASK 21-61-51-400-001).
「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, 101-149, 151-199, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page A292
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本文链接地址：A320 Trouble Shooting Manual 排故手册 AIR CONDITIONING 空调2(82)
