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 May 01/04
 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).
 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 EFF : 301-399, ∞∞25-27-00∞∞∞∞∞∞∞∞∞∞Page 201
 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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