(2) If there is no 28 VDC:
- do a check of the SWITCH-LAVATORY OCCUPIED (2WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001)
(3) If the fault continues:
- do a check and repair the WIRING between: CB (1WJ) and SWITCH-LAVATORY OCCUPIED (2WJ) pin C, SWITCH-LAVATORY OCCUPIED (2WJ) pin NO and SIGN-LAVATORY OCCUPIED (3WJ) pin 3+, SIGN-LAVATORY OCCUPIED (3WJ) pin 2- and GND (Ref. ASM 33-26/01)
B. If the test shows that no LAMPS in the green unoccupied pictorial symbol of the FWD SIGN-LAVATORY OCCUPIED (3WJ) come on:
- make sure that the FWD lavatory door is not locked,
- do a check for 28 VDC at the LAMPS (Ref. ASM 33-26/01).
(1) If there is 28 VDC:
- replace the SIGN-LAVATORY OCCUPIED (3WJ) (Ref. AMM TASK 33-26-23-000-001) and (Ref. AMM TASK 33-26-23-400-001).
(2) If there is no 28 VDC:
- do a check of the SWITCH-LAVATORY OCCUPIED (2WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001).
(3) If the fault continues:
- do a check and repair the WIRING between: CB (1WJ) and SWITCH-LAVATORY OCCUPIED (2WJ) pin C, SWITCH-LAVATORY OCCUPIED (2WJ) pin NF and SIGN-LAVATORY OCCUPIED (3WJ) pin 1+, SIGN-LAVATORY OCCUPIED (3WJ) pin 2- and GND (Ref. ASM 33-26/01).
C. If the test shows that no LAMPS in the red occupied pictorial symbol of the AFT SIGN-LAVATORY OCCUPIED (13WJ) come on:
- make sure that the AFT lavatory doors are closed and locked,
- do a check for 28 VDC at the LAMPS (Ref. ASM 33-26/01).
(1) If there is 28 VDC:
- replace the SIGN-LAVATORY OCCUPIED (13WJ) (Ref. AMM TASK 33-26-23-000-001) and (Ref. AMM TASK 33-26-23-400-001).
(2) If there is no 28VDC:
- do a check of the SWITCH-LAVATORY OCCUPIED (7WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001).
(3) If the fault continues:
- do a check of the SWITCH-LAVATORY OCCUPIED (9WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001).
「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 ∞∞33-26-00∞∞∞∞∞∞∞∞∞∞Page 204
Feb 01/98 CES
(4) If the fault continues:
- do a check of the RELAY-LAVATORY OCCUPIED (5WJ) and replace it if necessary.
(5) If the fault continues:
- do a check of the RELAY-LAVATORY OCCUPIED (8WJ) and replace it if necessary.
(6) If the fault continues:
- do a check and repair the WIRING between: CB (1WJ) and SWITCH-LAVATORY OCCUPIED (9WJ) pin C, SWITCH-LAVATORY OCCUPIED (9WJ) pin NO and RELAY-LAVATORY OCCUPIED (5WJ) pin X, RELAY-LAVATORY OCCUPIED (5WJ) pin Z and GND, CB (1WJ) and SWITCH-LAVATORY OCCUPIED (7WJ) pin C, SWITCH-LAVATORY OCCUPIED (7WJ) pin NO and RELAY-LAVATORY OCCUPIED (5WJ) pin A/A, RELAY-LAVATORY OCCUPIED (5WJ) pin A/2 and RELAY-LAVATORY OCCUPIED (8WJ) pin A/X1, RELAY-LAVATORY OCCUPIED (8WJ) pin A/X2 and GND, CB (1WJ) and RELAY-LAVATORY OCCUPIED (8WJ) pin A/A2, RELAY-LAVATORY OCCUPIED (8WJ) pin A/A1 and SIGN-LAVATORY OCCUPIED (13WJ) pin 3+ (Ref. ASM 33-26/01).
D. If the test shows that no LAMPS in the green unoccupied pictorial symbol of the AFT SIGN-LAVATORY OCCUPIED (13WJ) come on:
- make sure that the AFT lavatory doors are not locked,
- do a check for 28 VDC at the LAMPS (Ref. ASM 33-26/01).
(1) If there is 28 VDC:
- replace the SIGN-LAVATORY OCCUPIED (13WJ) (Ref. AMM TASK 33-26-23-000-001) and (Ref. AMM TASK 33-26-23-400-001).
(2) If there is no 28VDC:
- do a check of the SWITCH-LAVATORY OCCUPIED (7WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001).
(3) If the fault continues:
- do a check of the SWITCH-LAVATORY OCCUPIED (9WJ) and replace it if necessary (Ref. AMM TASK 33-26-11-000-001) and (Ref. AMM TASK 33-26-11-400-001).
(4) If the fault continues:
- do a check of the RELAY-LAVATORY OCCUPIED (5WJ) and replace it if necessary.
(5) If the fault continues:
- do a check of the RELAY-LAVATORY OCCUPIED (8WJ) and replace it if necessary.
「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 ∞∞33-26-00∞∞∞∞∞∞∞∞∞∞Page 205
Feb 01/98 CES (6) If the fault continues:
- do a check and repair the WIRING between: CB (1WJ) and RELAY-LAVATORY OCCUPIED (8WJ) pin A/A2, RELAY-LAVATORY OCCUPIED (8WJ) pin A/A3 and SIGN-LAVATORY OCCUPIED (13WJ) pin 1+, SIGN-LAVATORY OCCUPIED (13WJ) pin 2- and GND (Ref. ASM 33-26/01).
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本文链接地址：A320 Trouble Shooting Manual 排故手册 LIGHTS 灯光(47)
