Konica Minolta bizhub C658 Service Manual page 1503

bizhub C658/C558/C458/C368/C308/C258
7. Replace DFCB.
NOTICE
• Link to the wiring diagram (
3.19.3 C8302 (bizhub C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition <When DF-629 is installed>
Trouble isolation
Relevant electrical parts
(2) Procedure
(a) When DF-629 is installed
1. Check the connector between FM1-DFCB J16 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM1 operation check
• Control signal: DFCB J16-3 (ON)
• Location of electrical component: DF-629 3-B
4. Replace FM1.
5. Replace DFCB.
NOTICE
• Link to the wiring diagram (
(b) When DF-704 is installed
1. Check the connector between FM1-DFCB J16 for proper connection and correct as necessary.
2. Check the fan for possible overload and correct as necessary.
3. FM1 operation check
• Control signal: DFCB J16-3 (ON)
• Location of electrical component: DF-704 7-G
4. Replace FM1.
5. Replace DFCB.
NOTICE
• Link to the wiring diagram (
3.19.4 C8401 (bizhub C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition Data flash does not access normally.
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Turn OFF the main power switch, disconnect and then connect the power cord. Wait for 10 sec. or more after connect the power cord,
and turn ON the main power switch.
2. Check the DFCB connector for proper connection and correct as necessary.
3. Rewrite the firmware.
4. Replace DFCB. (DF-704
3.20 C8### (bizhub C658/C558/C458)
3.20.1 C8101 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
N.4.2 DF-704)
C8302: Cooling fan trouble (When DF-629 or DF-704 is installed)
B
• The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is spinning.
• The lock signal continues to detect L during a given time while the DF cooling fan motor (FM1) is during
halts.
<When DF-704 is installed>
• The lock signal continues to detect H during a given time while the DF cooling fan motor (FM1) is spinning.
• The lock signal continues to detect L during a given time while the DF cooling fan motor (FM1) is during
halts.
-
<When DF-629 is installed>
• DF cooling fan motor (FM1)
• DF control board (DFCB)
<When DF-704 is installed>
• DF cooling fan motor (FM1)
• DF control board (DFCB)
N.4.1 DF-629)
N.4.2 DF-704)
C8401: Data flash failure
C
-
DF control board (DFCB)
/ DF-629)
C8101: Before reading pressure welding alienation mechanism trouble
B
K TROUBLESHOOTING > 3. TROUBLE CODE
K-175