B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU LIGHTING/ANN LT SPLY/XFMR/BUS 1 26LP X04
C. Test On the GPWS section of panel 21VU, push the GPWS/FLAP MODE pushbutton switch and make sure that the OFF legend comes on.
「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 ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 245
Feb 01/03R
CES
4. Fault Isolation
_______________
A. If the OFF legend of the GPWS/FLAP MODE pushbutton switch stays off:
- on the panel 25VU, set the INT LT/ANN LT switch to TEST and do a check to see if the OFF legend comes on:
(1) If the OFF legend comes on:
- do a check and repair the wiring of the GPWS/FLAP MODE pushbutton switch (7WZ) from pin A/A1 to the ground point (Ref. ASM 34-48/01).
(2) If the OFF legend does not come on:
- replace the P/BSW - GPWS/FLAP MODE (7WZ) (Ref. AMM TASK 33-10-00-000-002) and (Ref. AMM TASK 33-10-00-400-002).
(a) If the fault continues:
- do a check and repair the wiring of the GPWS/FLAP MODE pushbutton switch (7WZ) from pin A/4 to pin A/A3 (Ref. ASM 34-48/01).
B. Do the test given in Para. 3.C.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 246
Feb 01/03R
CES The ON Legend of the GPWS/LDG FLAP 3 Pushbutton Switch does not come on
1. Possible Causes
_______________
- wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ)
- P/BSW - GPWS/LDG FLAP 3 (13WZ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power AMM 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power AMM 33-10-00-000-002 Removal of the Bulbs and the Body of a Pushbutton Switch in the Cockpit AMM 33-10-00-400-002 Installation of the Bulbs and the Body of a Pushbutton Switch in the Cockpit ASM 34-48/01
3. Fault Confirmation
__________________
A. Job Set-Up
(1) Aircraft Maintenance Configuration
(a) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
B. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU LIGHTING/ANN LT SPLY/XFMR/BUS 1 26LP X04
C. Test On the GPWS section of panel 21VU, push the GPWS/LDG FLAP 3 pushbutton switch and make sure that the ON legend comes on.
「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 ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 247
Feb 01/03R
CES
4. Fault Isolation
_______________
A. If the ON legend of the GPWS/LDG FLAP 3 pushbutton switch stays off:
- on the panel 25VU, set the INT LT/ANN LT switch to TEST and do a check to see if the ON legend comes on:
(1) If the ON legend comes on:
- do a check and repair the wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ) from pin A/A1 to the ground point (Ref. ASM 34-48/01).
(2) If the ON legend does not come on:
- replace the P/BSW - GPWS/LDG FLAP 3 (13WZ) (Ref. AMM TASK 33-10-00-000-002) and (Ref. AMM TASK 33-10-00-400-002).
(a) If the fault continues:
- do a check and repair the wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ) from pin A/4 to pin A/A3 (Ref. ASM 34-48/01).
B. Do the test given in Para. 3.C.
5. Close-up
________
A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
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本文链接地址：A320 Trouble Shooting Manual 排故手册 导航 NAVIGATION 3(80)
