Konica Minolta bizhub C658 Service Manual page 1500

bizhub C658/C558/C458/C368/C308/C258
3.18.14 C6756 (bizhub C658/C558/C458/C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition Power is not supplied to CCD after the lapse of a given period of time after the main power switch or power key
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Correct the harness connection between CCDB CN5-SCDB CN5 if faulty. (bizhub C368/C308/C258)
2. Correct the harness connection between CCDB PJ5-SCDB CN5 if faulty. (bizhub C658/C558/C458)
3. Correct the harness connection between SCDB CN1-DCPU CN5 if faulty. (bizhub C368/C308/C258)
4. Correct the harness connection between SCDB CN1-DCPU CN005 if faulty. (bizhub C658/C558/C458)
5. Replace CCDB. (bizhub C368/C308/C258
6. Replace SCDB. (bizhub C368/C308/C258
7. Replace DCPU. (bizhub C368/C308/C258
3.18.15 C6901, C6902, C6903 (bizhub C658/C558/C458/C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Correct the harness connection of DSCB/1 if faulty.
2. Replace DSCB/1.
3. Replace MFPB. (bizhub C368/C308/C258
3.18.16 C6911, C6912, C6913 (bizhub C368/C308/C258)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
Relevant electrical parts
(2) Procedure
1. Correct the harness connection of DSCB/2 if faulty.
2. Correct the harness connection of DSIPB if faulty.
3. Replace DSCB/2.
4. Replace DSIPB.
5. Replace MFPB.
3.18.17 C6911, C6912, C6913 (bizhub C658/C558/C458)
(1) Contents
Trouble type
Rank
Trouble detection condition
Trouble isolation
C6756: CCD power-supply voltage malfunction
C
is turned ON or the machine recovers from the sleep mode.
-
• CCD board (CCDB)
• Scanner drive board (SCDB)
• DC power supply (DCPU)
/ bizhub C658/C558/C458)
/ bizhub C658/C558/C458)
/ bizhub C658/C558/C458)
• C6901: DSC board mount failure 1 (When SC-508 is installed)
• C6902: DSC board bus check NG1-1 (When SC-508 is installed)
• C6903: DSC board bus check NG1-2 (When SC-508 is installed)
C
• C6901: When MFP detects that DSC board/1 (front side) is not properly installed.
• C6902, C6903: When DSC bus check (front side) detects an error.
-
• DSC board/1 (DSCB/1: SC-508)
• MFP board (MFPB)
/ bizhub C658/C558/C458)
• C6911: DSC board mount failure 2 (When DF-704 + SC-508 is installed)
• C6912: DSC board bus check NG2-1 (When DF-704 + SC-508 is installed)
• C6913: DSC board bus check NG2-2 (When DF-704 + SC-508 is installed)
C
• C6911: When MFP detects that DSC board/2 (back side) is not properly installed.
• C6912, C6913: When DSC bus check (back side) detects an error.
-
• DSC board/2 (DSCB/2; SC-508)
• Dual scan image processing board (DSIPB; DF-704)
• MFP board (MFPB)
• C6911: DSC board mount failure 2 (When SC-508 is installed)
• C6912: DSC Bus check NG2-1 (When SC-508 is installed)
• C6913: DSC Bus check NG2-2 (When SC-508 is installed)
C
• C6911: When MFP detects that DSC board2 (back side) is not properly installed.
• C6912, C6913: When DSC bus check (back side) detects an error.
-
K TROUBLESHOOTING > 3. TROUBLE CODE
K-172