Konica Minolta bizhub C650 Service Manual page 733

16. Malfunction code
16.5.147 CD251: No JPEG board mounting at JPEG board mount setting
MFP board (MFPB)
Step
Check the JPEG board connector for
1 proper connection and correct as neces-
sary.
2 Change JPEG board.
3 Change MFPB.
16.5.148 CD252: No relay circuit boards for IC-409 mounting at IC-409 mount setting
6
MFP board (MFPB)
Step
If the IC-409 is not mounted, access [Ser-
vice Mode] → [System 2] → [Image Con-
1 troller Setting] and check to see if
"Controller 0" is set for [Image Controller
Setting].
Check the relay circuit boards connector for
2 proper connection and correct as neces-
sary.
3 Change relay circuit board(s).
4 Change MFPB.
16.5.149 CD261: USB host board failure
MFP board (MFPB)
Step
Check the operation with another USB
1
device.
Check the USB host board connector for
2 proper connection and correct as neces-
sary.
3 Change USB host board.
4 Change MFPB.
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Relevant parts
Action
Relevant parts
Action
Relevant parts
Action
Field Service Ver. 8.0 Jun. 2008
JPEG board (SA-501)
WIRING DIAGRAM
Control signal
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Relay circuit boards (VI-504)
WIRING DIAGRAM
Control signal
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USB host board (EK-602/603)
WIRING DIAGRAM
Control signal
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—
Location (Electri-
cal component)
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Location (Electri-
cal component)
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Location (Electri-
cal component)
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