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 CES

 PED Power Supply - Schematic Figure 302 (SHEET 1)

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 Aug 01/05 CES

 PED Power Supply - Schematic Figure 302 (SHEET 2)

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 Aug 01/05 CES ANCILLARY EQUIPMENT (INCLUDING DOOR AREA HEATING PANELS)

________________________________________________________ FAULT ISOLATION PROCEDURES
__________________________
 TASK 25-27-00-810-807

 EQUIP/FURNIS - DOOR AREA HEATING - One heated floor panel is INOP
 1. Possible Causes
_______________

 - fuse

 - control unit

 - heated floor panel

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 25-27-00-740-001 Bite Test of the Heated Floor Panel System. AMM 25-27-34-000-002 Removal of the Control Unit 60DS, 66DS AMM 25-27-34-400-002 Installation of the Control Unit 60DS, 66DS AMM 25-27-51-000-002 Removal of the Heated Floor Panel 31DS (30DS), 33DS
 (32DS) AMM 25-27-51-400-002 Installation of the Heated Floor Panel 31DS (30DS),
 33DS (32DS) ASM 25-27/01 ASM 25-27/02
 3. Fault Confirmation
__________________

 A. Do the Bite Test of the Heated Floor Panel System (Ref. AMM TASK 25-27-00-740-001).
 4. Fault Isolation
_______________

 A. If one test indicator on the related control unit does not come on:
 - Do a check of the related fuse. If it is necessary replace the related fuse.
 (1) If the fuse is not serviceable:
 - Do a check of the aircraft wiring for a short circuit between the related control unit and the inoperative heated floor panel (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
 (a) If there is a short to ground:
 - Repair the aircraft wiring (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
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 May 01/04 CES

 (b) If there is no short to ground:

 - Replace the related control unit (Ref. AMM TASK 25-27-34-000-002) and (Ref. AMM TASK 25-27-34-400-002).

 (c) If the fault continues:

 - Replace the related heated floor panel (Ref. AMM TASK 25-27-51-000-002) and (Ref. AMM TASK 25-27-51-400-002).
 (2) If the fuse is serviceable:
 - Do a check of the aircraft wiring between the related control unit and the inoperative heated floor panel (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
 (a) If there is continuity:

 - Replace the related control unit (Ref. AMM TASK 25-27-34-000-002) and (Ref. AMM TASK 25-27-34-400-002).

 (b) If there is no continuity:

 1_ If the fault continues:
 - Replace the related heated floor panel (Ref. AMM TASK 25-27-
51-000-002) and (Ref. AMM TASK 25-27-51-400-002).

 - Repair the aircraft wiring (Ref. ASM 25-27/01) or (Ref. ASM 25-27/02).
 B. Do the test given in para. 3.A.

 EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are INOP
 1. Possible Causes
_______________

 - RELAY-GALLEY PWR SPLY (6MC)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-56-00-810-801 Galley Supply Fault AMM 24-56-00-710-001 Operational Test of the Galley Supply AMM 24-56-55-000-002 Removal of the Contactor Located in the Panel 200VU AMM 24-56-55-400-002 Installation of the Contactor Located in the Panel
 200VU AMM 25-27-00-740-001 Bite Test of the Heated Floor Panel System.
 3. Fault Confirmation
__________________
　
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