C5102, C5103 (bizhub C750i)

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Trouble typeC5102: Transport motor failure to turn

C5103: Transport motor turning at abnormal timing
RankB
Trouble detection conditionC5102: The control circuit detects motor failure to turn while the motor is turning.

C5103: The control circuit detects motor turning while the motor remains stationary.
Trouble isolation–
Relevant electrical parts-Transport motor (M1)
-CPU board (CPUB)
-Base board (BASEB)

Procedure

  1. Check the connector between M1-BASEB CN19E for proper connection and correct as necessary.
  2. Check the loading status of the main drive, and correct the error as necessary.
  3. Check CPUB for proper installation and correct as necessary.
  4. M1 load check
    • Check code: 40
    • Multi code: 1, 4, 5
    • Control signal: BASEB CN19EA-1 to 5
    • Location of electrical component: 1-C
  5. Replace M1. (Part# AA7NM10400)
  6. Replace CPUB. (Part# ACKNH02P03)
  7. Replace BASEB. (Part# ACKNH02101)

(Link to the Field Service Manual)