C5620 (C4751i)

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ByEric Ditges
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Contents

Trouble typeC5620: Mechanical controller WDT error
RankC
Trouble detection conditionCommunication error is detected in mechanical controller ASIC.
Trouble isolation–
Relevant electrical partsCPU board (CPUB)Base board (BASEB)

Procedure

  1. Turn OFF the main power switch and unplug the power cord. Connect the power cord after 15 sec. or more, and turn ON the main power switch.
  2. Check CPUB for proper installation and correct as necessary.
  3. Rewrite the firmware.
  4. Replace CPUB.
  5. Replace BASEB.

(Link to the Field Service Manual)