Ricoh MP3500G
Troubleshooting. Electrical Component Defects 2
SWITCHES
| Component (Symbol) |
CN | Condition | Symptom |
|---|---|---|---|
| Right Lower Cover (SW1) |
216-4 (IOB) |
Open | "Doors/Covers Open" is displayed even if the right lower cover is closed. |
| Shorted | The LCD goes blank when the lower cover is opened. | ||
| Main (SW3) | 102-1 ~4 (PSU) 107-1 |
Open | The machine does not turn on. |
| Shorted | The machine does not turn off. | ||
| Front Cover Safety (SW4) |
107-1 (PSU) |
Open | "Doors/Covers Open" is displayed even if the front cover is closed. |
| Shorted | "Doors/Covers" Open is not displayed even if the front cover is opened. |
BLOWN FUSE CONDITIONS
| Fuse | Rating | Symptom at power on | |
|---|---|---|---|
| 115V | 210~230V | ||
| Power Supply Board | |||
| FU1 | 6.3A / 125 V | 6.3A / 250V | "Doors/Covers Open" is displayed |
| FU2 | 6.3A / 125V | 6.3A / 250V | "Doors/Covers Open" for the finisher is displayed |
| FU3 | 6.3A / 125V | 6.3A / 250V | Paper end condition |
| FU5 | 6.3A / 125V | 6.3A / 250V | SC302, or SC403, or SC405 displayed |
| FU6 | 3.15A/125V | 3.15A/250V | |
| FU9 | 5A/125V | 5A/250V | |
| FU10 | 3.15A/250V | 2A/250V | |
| FU11 | 5A/250V | 5A/250V | |
| FU101 | 15A/ 125V | 8A/250V | No response |
| FU102 | 10A/ 125V | 5A /250V | No response |
| FU103 | 2A /125V | 1A /250V | Normal operation (optional heaters do not work) |