CDF51 (bizhub C3320i)
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Contents
| Trouble type | CDF51: ASIC image version failure (back side) | 
| Rank | C | 
| Trouble detection condition | Communication error is detected between the CPU board (CPUB) and the DF CIS module (DF CIS). | 
| Trouble isolation | – | 
| Relevant electrical parts | -DF CIS module (DF CIS) -DF CIS relay board (DFCISRYB) -CPU board (CPUB) -Base board (BASEB)  | 
Procedure
- Check the connector between DF CIS-DFCISRYB CN1 for proper connection and correct as necessary.
 - Check the connector between DFCISRYB CN2-BASEB CN5 for proper connection and correct as necessary.
 - Check CPUB for proper installation and correct as necessary.
 - Rewrite the firmware.
 - Replace the DF CIS module assy. (Part# AAJPR70800)
 - Replace DFCISRYB. (Part# AAJPH10100)
 - Replace CPUB. (Part# AAJRH01005)
 - Replace BASEB. (Part# A93EH02007)
 
L.3.17.28 (Link to the Field Service Manual)
