C5102, C5103 (C4751i)

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ByEric Ditges
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Contents

Trouble typeC5102: Main motor failure to turnC5103: Main 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 partsMain motor (M1)CPU board (CPUB)Base board (BASEB)

Procedure

  1. Check the connector between M1-BASEB CN17E 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, 2
    • Control signal: BASEB CN17E-1 to 5
    • Location of electrical component: 1-C
  5. Replace M1.
  6. Replace CPUB.
  7. BASEB F18E conduction check
  8. Replace BASEB.

(Link to the Field Service Manual)