Konica Minolta bizhub C250 Service Manual page 415

16. Malfunction code
16.5.71 C6704: Image Input Time Out
MFP Control Board (PWB-MFP)
Step
Select [Service Mode] → [State Confirma-
tion] → [Memory/HDD Adj.] → [Memory
1
Bus Check] → [Scanner→Memory].
Check the connectors between PWB-C
2 and PWB-MFP for proper connection and
correct as necessary.
3 Change PWB-MFP
4 Change PWB-C
16.5.72 C6751: CCD clamp/gain adjustment failure
Scanner Assy
Step
Correct the harness connection between
1
PWB-A and PWB-C if faulty.
Check for possible extraneous light and
2
correct as necessary.
Clean the lens, mirrors, CCD surface, and
3
shading sheet if dirty
Correct reflective mirror of the Scanner if
4
faulty, or change Scanner.
5 Change PWB-A
6 Change PWB-C
372
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
Field Service Ver. 1.0 Jul. 2005
Image Processing Board (PWB-C)
WIRING DIAGRAM
Control Signal
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CCD Sensor Board (PWB-A)
Image Processing Board (PWB-C)
WIRING DIAGRAM
Control Signal
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Location (Electri-
cal Component)
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Location (Electri-
cal Component)
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