Konica Minolta bizhub C658 Service Manual page 1488

bizhub C658/C558/C458/C368/C308/C258
4. Replace M1.
5. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.16.2 C5351 (bizhub C368/C308/C258)
(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 FM1-relay CN26-MFPB CN24EA for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM1 operation check
• Control signal: MFPB CN24EA-9 (REM), MFPB CN24EA-11 (LOCK)
• Location of electrical component: 25-J
4. Replace FM1.
5. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.16.3 C5355 (bizhub C368/C308/C258)
(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 FM4-relay CN157-MFPB CN15EB for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM4 operation check
• Control signal: MFPB CN15EB-6 (REM), MFPB CN15EB-8 (LOCK)
• Location of electrical component: 9-C
4. Replace FM4.
5. Replace MFPB.
NOTICE
• Link to the wiring diagram (
3.16.4 C5360 (bizhub C368/C308/C258)
(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 CUDB CN1-MFPB CN32E for proper connection and correct as necessary.
2. Check the connector between FM14-CUDB CN3, FM15-CUDB CN2, FM16-relay CN183-CUDB CN4 for proper connection and correct
as necessary.
3. Check the fan for possible overload and correct as necessary.
4. FM14, FM15, FM16 operation check
• Load check: Check code42, Multi code 4
• Control signal: CUDB CN3 (FM14), CUDB CN2 (FM15), CUDB CN4 (FM16)
• Location of electrical component: 14-X
5. Replace the defective fan. (FM14 / FM15 / FM16)
6. Replace CUDB.
7. MFPB ICP14E conduction check
N.1 bizhub C368/C308/C258)
C5351: Power supply cooling fan motor failure to turn
B
-
• Power supply cooling fan (FM1)
• MFP board (MFPB)
N.1 bizhub C368/C308/C258)
C5355: Toner cartridge cooling fan failure to turn
B
-
• Toner cartridge cooling fan (FM4)
• MFP board (MFPB)
N.1 bizhub C368/C308/C258)
C5360: Clean unit fan failure to turn (When CU-101 is installed)
B
-
• Exhaust fan/1 (FM14)
• Exhaust fan/2 (FM15)
• Suction fan (FM16)
• Clean unit drive board (CUDB)
• MFP board (MFPB)
K TROUBLESHOOTING > 3. TROUBLE CODE
K-160