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19. TROUBLE CODE
Field Service Ver. 2.0 Jul. 2009
816
TROUBLESHOOTING
19.5.142 C5304: IH cooling fan motor/1’s failure to turn
19.5.143 C5306: IH cooling fan motor/2’s failure to turn
Relevant parts
IH cooling fan motor/1 (FM10)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the FM10 connector for proper
connection and correct as necessary.
—
—
2
Check the fan for possible overload and
correct as necessary.
—
—
3
FM10 operation check
PRCB CN8-5 (REM)
PRCB CN8-7 (LOCK)
C-16
4
Change FM10
—
—
5
PRCB ICP10 conduction check
—
—
6
Change PRCB
—
—
Relevant parts
IH cooling fan motor/2 (FM12)
Printer control board (PRCB)
Step
Action
WIRING DIAGRAM
Control signal
Location (Electri-
cal component)
1
Check the FM12 connector for proper
connection and correct as necessary.
—
—
2
Check the fan for possible overload and
correct as necessary.
—
—
3
FM12 operation check
PRCB CN8-8 (REM)
PRCB CN8-10 (LOCK)
C-15
4
Change FM12
—
—
5
PRCB ICP10 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...