CDF51, CDF71, CDFA1 (bizhub 650i/550i/450i)

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Contents

Trouble type	CDF51: ASIC image version failure (back side) CDF71: ASIC image access failure (back side) CDFA1: ASIC image error (back side)
Rank	C
Trouble detection condition	Communication error is detected between the CPU board (CPUB) and the CIS module (CIS).
Trouble isolation	–
Relevant electrical parts	-CIS module (CIS) -CPU board (CPUB) -Base board (BASEB)

Procedure

1. Check the connector between CIS CN2-BASEB CN5 for proper connection and correct as necessary.
2. Check CPUB for proper installation and correct as necessary.
3. Rewrite the firmware.
4. Replace CIS. (Part# AAMPR70100)
5. Replace CPUB.
   650i/550i (Part# AC74H02P03)
   450i (Part# AC76H02P02)
6. Replace BASEB. (Part# AC74H02101)

(Link to the Field Service Manual)