- wiring between the GPWS/G/S pushbutton switches (4WZ and 5WZ) and the GPWC (1WZ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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 AMM 34-48-00-740-002 BITE Test of the Enhanced GPWC AMM 34-48-34-000-001 Removal of the GPWC (1WZ) AMM 34-48-34-400-001 Installation of the GPWC (1WZ) ASM 34-48/01
3. Fault Confirmation
__________________
A. Test
(1) Do the BITE test of the Enhanced GPWS (Ref. AMM TASK 34-48-00-740-002).
4. Fault Isolation
_______________
A. If the BITE test gives the maintenance message
CAPT/FO GPWS GS PB SW (4WZ/5WZ)/GPWC (1WZ):
- do a check for ground at pin AB/9A or AB/9D of the GPWC.
(1) If there is no ground:
- replace the GPWC (1WZ) (Ref. AMM TASK 34-48-34-000-001) and (Ref. AMM TASK 34-48-34-400-001).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 217
Aug 01/02R
CES (2) If there is ground:
- replace the P/BSW - GPWS/G/S (4WZ) (Ref. AMM TASK 33-10-00-000-002) and (Ref. AMM TASK 33-10-00-400-002).
(a) If the fault continues:
- replace the P/BSW - GPWS/G/S (5WZ) (Ref. AMM TASK 33-10-00-000-002) and (Ref. AMM TASK 33-10-00-400-002).
1_ If the fault continues:
- do a check and repair the wiring between the GPWS/G/S
pushbutton switches (4WZ and 5WZ) and the GPWC (1WZ) : pins
AB/9A and AB/9D (Ref. ASM 34-48/01).
B. Do the test given in Para. 3.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 218
Aug 01/02R
CES
TASK 34-48-00-810-812
BITE Test of the GPWS Inoperative
1. Possible Causes
_______________
- GPWC (1WZ)
- LGCIU-1 (5GA1)
- wiring of the AIR/GROUND discrete from the LGCIU1 (5GA1) to the GPWC (1WZ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 32-31-71-000-001 Removal of the LGCIU (5GA1, 5GA2)
AMM 32-31-71-400-001 Installation of the LGCIU (5GA1, 5GA2)
AMM 34-48-00-740-002 BITE Test of the Enhanced GPWC
AMM 34-48-34-000-001 Removal of the GPWC (1WZ)
AMM 34-48-34-400-001 Installation of the GPWC (1WZ)
ASM 34-48/01
3. Fault Confirmation
__________________
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. If you cannot start the BITE test of the Enhanced GPWS on the MCDU:
- replace the GPWC (1WZ) (Ref. AMM TASK 34-48-34-000-001) and (Ref. AMM TASK 34-48-34-400-001).
(1) If the fault continues:
- replace the LGCIU-1 (5GA1) (Ref. AMM TASK 32-31-71-000-001) and (Ref. AMM TASK 32-31-71-400-001).
(a) If the fault continues:
- do a check and repair the wiring of the AIR/GROUND discrete from the LGCIU1 (5GA1) to the GPWC (1WZ) (Ref. ASM 34-48/01).
B. Do the BITE test of the Enhanced GPWC (Ref. AMM TASK 34-48-00-740-002).
Aug 01/02R CES
Loss of the Aural Warnings
1. Possible Causes
_______________
- LOUD SPEAKER-CAPT (7WW)
- LOUD SPEAKER-F/O (8WW)
- GPWC (1WZ)
- wiring of the ALARM 2 INPUT bus from the CAPT loud speaker (7WW) to the first terminal block
- wiring of the ALARM 2 INPUT bus from the F/O loud speaker (8WW) to the first terminal block
- wiring of the AUDIO OUTPUT bus from the GPWC (1WZ) to the first terminal block
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 31-53-21-000-001 Removal of the Loudspeakers (7WW,8WW)
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