Ricoh MPC3001
Troubleshooting. Electrical Component Defects 4
Blown Fuse Conditions
Power Supply Unit
| Fuse | Rating | Symptom when turning on the main switch | |
|---|---|---|---|
| 115V | 220V - 240V | ||
| FU1 | 15A/125V | 8A/250V | No response. (5V power to the PSU is not supplied.) |
| FU2 | 10A/125V | 6.3A/250V | No response. (5 V power to the BICU and controller is not supplied.) |
| FU3 | 2A/250V | 1A/250V | 5V power to the scanner heater and tray heater is not supplied. |
| FU4 | 1A/250V | 1A/250V | 5V power to the SIO and heater is not supplied. |
| FU5 | 5A/250V | 5A/250V | 5V power to the IOB not supplied. |
| FU6 | 2A/250V | 2A/125V | 5VS power to the BICU not supplied. |
| FU7 | 10A/125V | 10A/125V | 24VS power to the IOB not supplied. |
| FU8 | 10A/125V | 10A/125V | 24VS power to the IOB not supplied. |
| FU9 | 6.3A/125V | 6.3A/125V | 24V power to the IOB not supplied. |
| FU10 | 6.3A/125V | 6.3A/125V | 24V power to the SIO not supplied. |
| FU11 | 6.3A/125V | 6.3A/125V | 24V power to the BICU and MB not supplied. |
| FU12 | 6.3A/125V | 6.3A/125V | 24V power to the PFU or LCT not supplied. |
| FU13 | 6.3A/125V | 6.3A/125V | 24V power to the finisher not supplied. |
| FU14 | 5A/250V | 5A/250V | 5V power to the BICU not supplied. |
IH Inverter
| Fuse | Rating | Symptom when turning on the main switch | |
|---|---|---|---|
| 115V | 220V - 240V | ||
| FU1 | 15A/125V | 8A/250V | 15V power to the IH coil unit is not supplied. SC689 occurs. |
| FU2 | 115°C | No response | |
| FU3 | 115°C | No response | |
| FU4 | 1A/250V | 15V power to the IH coil unit is not supplied. SC689 occurs. |
|
Caution
- For continued protection against risk of fire, replace only with same type and rating of fuse.