R (4) If the two PULL UP legends come on:
R - replace the GPWC (1WZ) (Ref. AMM TASK 34-48-34-000-001) and (Ref.
R AMM TASK 34-48-34-400-001).
R (a) If the fault continues:
R - replace the BOARD-ANN LT TEST & INTFC (4LP) (Ref. AMM TASK 33-
R 14-33-000-001) and (Ref. AMM TASK 33-14-33-400-001).
R 1 If the fault continues:_
R - do a check of the wiring of the annunciator light test and
R interface board (4LP):
R . pin A/45 to GPWC (1WZ) pin AB/7B
R . pin A/21 to the circuit breaker 2WZ
R (Ref. ASM 34-48/01).
R a If there is no continuity:_
R - repair the above wiring.
R b If there is continuity:_
R - replace the C/B - EIS/GPWS/28VDC (2WZ).
R **ON A/C ALL
C. Do the test given in Para. 3.
5. Close-up________
A. Put the aircraft back to its initial configuration.
(1) On the panel 25VU, set the INT LT/ANN LT switch to BRT.
Loss of the Visual Warning for Mode 5 (Glide Slope)
1. Possible Causes
_______________
- GPWC (1WZ)
- BOARD-ANN LT TEST & INTFC (4LP)
- wiring of the F/O GPWS/G/S pushbutton switch (4WZ)
- wiring of the annunciator light test and interface board (4LP)
- P/BSW - GPWS/G/S (5WZ)
- wiring of the CAPT GPWS/G/S pushbutton switch (5WZ)
- P/BSW - GPWS/G/S (4WZ)
- C/B - EIS/GPWS/28VDC (2WZ)
- wiring of the F/O PULL UP/GPWS pushbutton switch (4WZ)
- P/BSW - PULL UP/GPWS (5WZ)
- wiring of the CAPT PULL UP/GPWS pushbutton switch (5WZ)
- P/BSW - PULL UP/GPWS (4WZ)
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 33-14-33-000-001 Removal of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) AMM 33-14-33-400-001 Installation of the Annunciator-Light Test and Interface-Board (1LP, 2LP, 3LP, 4LP, 5LP, 6LP, 7LP, R 8LP, 9LP, 10LP, 11LP, 12LP, 18LP, 19LP, 20LP) AMM 34-48-00-710-001 Operational Test of Enhanced GPWS Ground Self-test
Function
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
__________________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-214,
A. Test
(1) Do the operational test of Enhanced GPWS ground self-test function (Ref. AMM TASK 34-48-00-710-001).
「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 227
May 01/05 CES
(2) Make sure that the G/S legend of the CAPT and F/O GPWS/G/S pushbutton switches comes on.
R **ON A/C 106-149, 215-299, 301-399, 401-499,
A. Test
(1) Do the operational test of Enhanced GPWS ground self-test function (Ref. AMM TASK 34-48-00-710-001).
(2) Make sure that the GPWS legend of the CAPT and F/O PULL UP/GPWS pushbutton switches comes on.
**ON A/C ALL
4. Fault Isolation
_______________
**ON A/C 001-049, 051-099, 101-105, 151-199, 201-214,
A. If the G/S legend of one or two GPWS/G/S pushbutton switches does not come on: - on the panel 25VU, set the INT LT/ANN LT switch to TEST and do a check
to see if the G/S legends come on.
(1) If the two G/S legends do not come on:
- do a check of the wiring of the F/O GPWS/G/S pushbutton switch (4WZ): . pin A/8 to the first terminal block . pin A/9 to pin A/5 (Ref. ASM 34-48/01).
(a) If there is no continuity:
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本文鏈接地址：A320 Trouble Shooting Manual 排故手冊(cè) 導(dǎo)航 NAVIGATION 3(74)
