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19. TROUBLE CODE
Field Service Ver. 2.0 Jul. 2009
798
TROUBLESHOOTING
19.5.82
C2353: IU cooling fan motor’s failure to turn
19.5.83
C2354: Rear side cooling fan motor’s failure to turn
Relevant parts
IU cooling fan motor (FM15)
PH relay board (REYB/PH)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the FM15 connector for proper
connection and correct as necessary.
—
—
2
Check the fan for possible overload and
correct as necessary.
—
—
3
FM15 operation check
REYB/PH CN5-1 (REM)
REYB/PH CN5-3 (LOCK)
A to B-6
4
Change FM15
—
—
5
REYB/PH ICP1 conduction check
—
—
6
Change REYB/PH
—
—
7
Change PRCB
—
—
Relevant parts
Rear side cooling fan motor (FM16)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the FM16 connector for proper
connection and correct as necessary.
—
—
2
Check the fan for possible overload and
correct as necessary.
—
—
3
FM16 operation check
PRCB CN18-2 (REM)
PRCB CN18-3 (LOCK)
C-12 to 13
4
Change FM16
—
—
5
PRCB ICP7 conduction check
—
—
6
Change PRCB
—
—
Service Manual Y110571-1
Summary of Contents for d-color MF651
Page 1: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Page 24: ...MEASURES TO TAKE IN CASE OF AN ACCIDENT S 22 Blank Page...
Page 27: ...d Color MF651 d Color MF551 d Color MF451 Color Printer SERVICE MANUAL Code Y110571 1...
Page 1053: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 10 2009 1ST EDITION 1053053 Y110571 1...