Konica Minolta bizhub C658 Service Manual page 1491

bizhub C658/C558/C458/C368/C308/C258
(2) Procedure
1. Reboot the machine.
2. Check the connector between FRB CN5-PH unit for proper connection and correct as necessary.
3. Check the connector between FRB CN2-MFPB CN10E for proper connection and correct as necessary.
4. Replace FRB.
5. Replace the PH unit.
6. Replace MFPB.
3.17 C5### (bizhub C658/C558/C458)
3.17.1 C5102, C5103 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between M1-MFPB CN14E for proper connection and correct as necessary.
2. Check the loading status of the transfer belt drive, and correct the error as necessary.
3. M1 operation check
• Control signal: MFPB CN14E-3 (REM), MFPB CN14E-6 (LOCK)
• Location of electrical component: 1-C
4. Replace M1.
5. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.17.2 C5304 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between FM12-relay CN146-MFPB CN15E for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM12 operation check
• Control signal: MFPB CN15E<A>-16 (REM), MFPB CN15E<A>-18 (LOCK)
• Location of electrical component: C658/C558 16-C, C458 20-C
4. Replace FM12.
5. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.17.3 C5306 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition The fan lock signal remains HIGH for a predetermined continuous period of time while the fan is turning.
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Check the connector between FM7-relay CN77-EXCB CN3 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM7 operation check
• Control signal: EXCB CN3-1 (REM), EXCB CN3-3 (LOCK)
• C5102: Transport motor's failure to turn
• C5103: Transport motor's turning at abnormal timing
B
• C5102: The motor lock signal remains HIGH for a predetermined continuous period of time while the motor
is turning.
• C5103: The motor lock signal remains LOW for a predetermined continuous period of time while the motor
remains stationary.
-
• Transport motor (M1)
• MFP board (MFPB)
N.2 bizhub C658/C558/C458)
C5304: Fusing power supply cooling fan's failure to turn (bizhub C658/C558)
B
-
• Fusing power supply cooling fan (FM12)
• MFP board (MFPB)
N.2 bizhub C658/C558/C458)
C5306: IH coil cooling fan's failure to turn (bizhub C658/C558)
B
-
• IH coil cooling fan (FM7)
• Expansion control board (EXCB)
• MFP board (MFPB)
K TROUBLESHOOTING > 3. TROUBLE CODE
K-163