Konica-Minolta bizhub 367
Troubleshooting. Machine is not energized at all, Fusing heaters do not operate
Machine is not energized at all (DCPU operation check)
Relevant electrical parts
• Main power switch (SW1)
• MFP board (MFPB)
• DC power supply (DCPU)
Procedure
Step | Check item | Location | Result | Action |
---|---|---|---|---|
1 | Is a power voltage supplied across CN1-1 and 2 on DCPU? | 20-T | NO | Check the WIRING from the wall outlet to SW1 to CN1. |
2 | Are the fuses on DCPU conducting? | NO | Replace DCPU | |
3 | Is DC5 V being output to CN5-7 and 8 on DCPU? | 18-R | NO | Replace DCPU |
4 | Is DC24 V being output to CN5-1 on DCPU? | 18-R | NO | • Check the WIRING from the wall MFPB to DCPU. • Replace DCPU • Replace MFPB |
5 | The LED on MFPB is blinking? | NO | Replace MFPB | |
6 | Is DC24 V being output to CN5-2 on DCPU? | 18-R | NO | Replace DCPU |
Fusing heaters do not operate
Relevant electrical parts
• Main power switch (SW1)
• Right door switch (SW3)
• DC power supply (DCPU)
• MFP board (MFPB)
• Fusing unit
Procedure
Step | Check item | Location | Result | Action |
---|---|---|---|---|
1 | Is a power voltage supplied across CN7-8 and 12 on DCPU? During this time, the right door should be closed. |
19-R | NO | Check wiring from power outlet to SW1 to CN7 to SW3. |
2 | Is the power source voltage applied across MFPB CN18E-1, 6? | 15-E | YES | Replace the fusing unit. |
NO | Replace DCPU. Replace MFPB. |