C4101 (bizhub C759/C659)

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Trouble typeC4101: Polygon motor rotation trouble
RankB
Trouble detection condition-The polygon motor fails to turn stably even after the lapse of a given period of time after activating the polygon motor.
-Motor lock signal detects HIGH for a given period time consecutively during the polygon motor is rotating.
Trouble isolation–
Relevant electrical parts-PH unit
-PH relay board (PHRYB)

 Procedure

  1. Check the connector between the PH unit-PHRYB CN14 for proper connection and correct as necessary.
  2. Replace the PH unit. (Part# A8JER70300)
  3. PHRYB ICP4 conduction check.
  4. Replace PHRYB. (Part# A8JEH00301)

L.3.11.3 (Link to the Field Service Manual)