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Eng
Ricoh M257 SPC440DN Z-P2
Troubleshooting. Electrical Component Defects 4
Blown Fuse Conditions
Power Supply Unit
| Fuse |
Rating |
Symptom when turning on the main switch |
| 120V-127V |
220V-240V |
| FU1 |
8A/125V |
8A/125V |
- 24V power to the BCU and bridge board not supplied.
- 24VS2 power to the BCU not supplied.
|
| FU2 |
8A/125V |
8A/125V |
- 24VS1 power to the BCU not supplied.
- 5VS power to the bridge board not supplied.
|
| FU3 |
5A/250V |
5A/250V |
- 5V power to the BCU and bridge board not supplied.
- 5VS power to the bridge board not supplied.
|
| FU101 |
15A/250V |
8A/250V |
Fusing SC occurs. |
| FU102 |
10A/250V |
6.3A/250V |
No response |
| FU103 |
2A/250V |
2A/250V |
Power to all the anti-condensation heaters not supplied. |