Konica-Minolta bizhub 20
Troubleshooting. Nothing is displayed on the LCD.
User Check
- Verify if the power switch is turned off.
| Step | Possible cause | Check | Result | Remedy |
|---|---|---|---|---|
| 1 | Connection between main PCB and control panel PCB | Are the main PCB and control panel PCB connected properly? | No | Reconnect the connector properly. |
| 2 | Connection between main PCB and LVPS PCB unit | Are the main PCB and LVPS PCB unit connected properly | No | Reconnect the connector properly. |
| 3 | LCD | Is the problem solved after replacing the LCD? | Yes | Replace the LCD. |
| 4 | Control panel PCB | Is the problem solved after replacing the control panel PCB? | Yes | Replace the control panel PCB. |
| 5 | LVPS PCB unit | Is the problem solved after replacing the LVPS PCB unit? | Yes | Replace the LVPS PCB unit. |
| 6 | Main PCB | Is the problem solved after replacing the main PCB ASSY? | Yes | Replace the main PCB ASSY. |