- do a check for 115 VAC at the LOGO LIGHT 3LY connector A/A (Ref. ASM 33-47/01).

 (1) If there is approx. 115 VAC:
 - replace the BEAM LAMP (Ref. AMM TASK 33-47-11-600-001).
 (a) If the fault continues:
 - replace LOGO LIGHT 3LY (Ref. AMM TASK 33-47-11-000-001) and (Ref. AMM TASK 33-47-11-400-001).
 1 If the fault continues:
_
 - do a check of the wiring between: LOGO LIGHT 3LY connector A/B and GND
 「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 ∞∞33-47-00∞∞∞∞∞∞∞∞∞∞Page 201
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 (Ref. ASM 33-47/01).

 (2) If there is no 115 VAC:
 - do a check of the wiring between:
 LOGO LIGHT 3LY connector A/A and CB 2LY
 (Ref. ASM 33-47/01).

 (a) If the fault continues:
 - do a check and replace if necessary: RELAY 5LY CB 2LY (Ref. ASM 33-47/01).
 B. If the test shows that the LOGO LIGHT 4LY does not come on:
 - make sure that the NAV LOGO switch is set to the ON position,

 - do a check for 115 VAC at the LOGO LIGHT 4LY connector A/A (Ref. ASM 33-47/01).

 (1) If there is approx. 115 VAC:
 - replace the BEAM LAMP (Ref. AMM TASK 33-47-11-600-001).
 (a) If the fault continues:
 - replace LOGO LIGHT 4LY (Ref. AMM TASK 33-47-11-000-001) and (Ref. AMM TASK 33-47-11-400-001).
 1 If the fault continues:
_
 - do a check of the wiring between: LOGO LIGHT 4LY connector A/B and GND (Ref. ASM 33-47/01).
 (2) If there is no 115 VAC:
 - do a check of the wiring between:
 LOGO LIGHT 4LY connector A/A and CB 1LY
 (Ref. ASM 33-47/01).

 (a) If the fault continues:
 - do a check and replace if necessary: RELAY 5LY CB 1LY (Ref. ASM 33-47/01).
 C. Do the test as given in the Para. 3. A.
 5. Close-up
________
 A. Put the aircraft back to its initial configuration.
 「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 ∞∞33-47-00∞∞∞∞∞∞∞∞∞∞Page 202
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 TASK 33-47-00-810-802

 Logo Lights - Both Logo Lights do not come on
 1. Possible Causes
_______________
 - wiring

 - CB 2LR

 - RELAY 5LY

 - SWITCH NAV LOGO 3LA

 - CB 1LA

 - RELAY 6LA

 - CB 2LA

 - RELAY 7LA

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
33-47-00-810-801 Logo Lights - One Logo Light does not come on
 AMM 27-51-00-740-002 Bite Test of the Slat and Flap Control Computers
 (Flap System)
 AMM 32-31-00-720-002 Functional Test of the Normal Extension and

 Retraction of the Landing Gear
 AMM 33-41-00-710-001 Operational Test of the Navigation Lights
 AMM 33-47-00-710-002 Operational Test of the Logo Lights
 ASM 33-41/01
 ASM 33-47/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the Operational Test of the Logo Lights (Ref. AMM TASK 33-47-00-710-002).

 (2) Do the Operational Test of the Navigation Lights (Ref. AMM TASK 33-41-00-710-001).

 4. Fault Isolation
_______________
 A. If the test shows that LOGO LIGHT 3LY or LOGO LIGHT 4LY does not come on:
 - do the trouble shooting procedure for One Logo Light does not come on (Ref. TASK 33-47-00-810-801).
 「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 ∞∞33-47-00∞∞∞∞∞∞∞∞∞∞Page 203
 Feb 01/98 CES

 B. If the test shows that the LOGO LIGHT 3LY and LOGO LIGHT 4LY in SWITCH NAV LOGO 3LA position 1 and 2 do not come on:
 - make sure that the SWITCH NAV LOGO 3LA is in position 1 or 2.

 - do a check for approx. 28 VDC at RELAY 5LY connector A/X1 (Ref. ASM 33-47/01).

 (1) If there is no 28 VDC:

 - do a check of the wiring between:
 RELAY 5LY connector A/X1 and CB 2LR
 (Ref. ASM 33-47/01).

 (a) If the fault continues:
 - do a check and replace if necessary: CB 2LR (Ref. ASM 33-41/01).
　
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