「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 : 401-499, ∞∞33-26-00∞∞∞∞∞∞∞∞∞∞Page 308
 Aug 01/05 CESR Block Diagram - Lavatory Lighted Signs R Figure 301C (SHEET 2)

 「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 : 401-499, ∞∞33-26-00∞∞∞∞∞∞∞∞∞∞Page 309
 Aug 01/05 CES

 LIGHT - WORK, CABIN ATTENDANT - FAULT ISOLATION PROCEDURES
__________________________________________________________
 TASK 33-27-00-810-801
 Cabin Attendant Work Light Fault
 1. Possible Causes
_______________
 - WORK LIGHT

 - lamp

 - PUSHBUTTON SWITCH

 - wiring

 - PWR UNIT

 - FAP (120RH)

 - PWR SPLY RELAY (2LZ)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 23-73-00-740-003 BITE Test of the Cabin Intercommunication Data System
 (CIDS) through the PTP
 AMM 23-73-15-000-001 Removal of the Light Module 122RH
 AMM 23-73-15-400-001 Installation of the Light Module 122RH
 AMM 33-27-00-710-001 Operational Test of the Cabin Attendant Work-Light
 AMM 33-27-12-000-001 Removal of the Cabin Attendant Work-Lights
 AMM 33-27-12-400-001 Installation of the Cabin Attendant Work-Lights
 AMM 33-27-38-000-001 Removal of the Power Unit for the Cabin Attendant

 Work-Light
 AMM 33-27-38-400-001 Installation of the Power Unit for the Cabin
 Attendant Work-Light
 ASM 33-27/01

 3. Fault Confirmation
__________________
 A. Do the operational test of the cabin-attendant work lights (Ref. AMM TASK 33-27-00-710-001).
 B. Do the CIDS BITE test (Ref. AMM TASK 23-73-00-740-003).
 4. Fault Isolation
_______________
 A. If the operational test gives the maintenace message WORK LIGHT FWD 1,2,L,R or WORK LIGHT MID 1,2,L,R or WORK LIGHT AFT 1,2,L,R:
 - replace the related WORK LIGHT (Ref. AMM TASK 33-27-12-000-001) and (Ref. AMM TASK 33-27-12-400-001).
 「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 ∞∞33-27-00∞∞∞∞∞∞∞∞∞∞Page 201
 Feb 01/98 CES (1) If the fault continues:

 - replace the related PWR UNIT (Ref. AMM TASK 33-27-38-000-001) and (Ref. AMM TASK 33-27-38-400-001).
 B. If the operational test gives the maintenace message WORK LIGHT PCB FWD 1,2,L,R or WORK LIGHT PCB MID 1,2,L,R or WORK LIGHT PCB AFT 1,2,L,R:
 - replace the related WORK LIGHT (Ref. AMM TASK 33-27-12-000-001) and (Ref. AMM TASK 33-27-12-400-001).
 (1) If the fault continues:
 - replace the related PWR UNIT (Ref. AMM TASK 33-27-38-000-001) and (Ref. AMM TASK 33-27-38-400-001).
 C. If the operational test gives the maintenace message POWER PCB FWD 1,2,L,R or POWER PCB 1,2,L,R or POWER PCB AFT 1,2,L,R:
 - replace the related PWR UNIT (Ref. AMM TASK 33-27-38-000-001) and (Ref.
 AMM TASK 33-27-38-400-001). R
R D. If the test gives a different maintenance message, do the trouble R shooting procedure related to the maintenance message.
 E. If the operational test gives no maintenance message, but one of the work lights does not come on:
 - replace the related lamp (Ref. AMM TASK 33-27-12-000-001) and (Ref. AMM TASK 33-27-12-400-001).
 (1) If the fault continues:

 - do a check of the related PUSHBUTTON SWITCH and replace it if necessary.

 (2) If the fault continues:

 - replace the related PWR UNIT (Ref. AMM TASK 33-27-38-000-001) and (Ref. AMM TASK 33-27-38-400-001).

 (3) If the fault continues:

 - do a check and repair the wiring between: PWR UNIT (3LZ) conn. A/D and L FWD ATTND SEAT (2063VU1) pin 1, PWR UNIT (3LZ) conn. A/G and L FWD ATTND SEAT (2063VU1) pin 3, GND and L FWD ATTND SEAT (2063VU1) pin 2, PWR UNIT (13LZ) conn. A/F and R AFT ATTND SEAT (2062VU2) pin 1, GND and R AFT ATTND SEAT (2062VU2) pin 2, PWR UNIT (12LZ) conn. A/F and L AFT ATTND SEAT (2062VU1) pin 1, GND and L AFT ATTND SEAT (2062VU1) pin 2 (Ref. ASM 33-27/01).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞33-27-00∞∞∞∞∞∞∞∞∞∞Page 202
　
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