Ricoh D038 MPC2050 DI-C1
Troubleshooting. Electrical Component Defects 3
• The CN numbers in the following table are the connector numbers on the BCU.
Sensors
| No. | Sensor Name/ Sensor Board Name | Active | CN | Condition | Symptom |
|---|---|---|---|---|---|
| S1 | Original Length Sensor 1 | A | CN206/2 | Open/ Shorted |
Original paper size cannot be detected. |
| S2 | Original Length Sensor 2 | A | CN206/5 | Open/ Shorted |
Original paper size cannot be detected. |
| S3 | Scanner HP Sensor | H | CN205/2 | Open | SC120 |
| Shorted | SC121 | ||||
| S4 | Platen Cover Sensor | L | CN205/5 | Open/ Shorted |
Platen cover open cannot be detected. |
| S20 | ITB Contact Sensor | L | CN234/5 | Open/ Shorted |
SC442 |
| S25 | Inverter Sensor | L | CN227/15 | Open | Jam C (Jam 24) |
| Shorted | Jam C (Jam64) | ||||
| SW2 | Right Lower Door Open Switch | L | CN219/13 | Open | "Open Cover" is displayed. |
| Shorted | "Open cover" cannot be detected. |
Blown Fuse Conditions
Power Supply Unit
| Fuse | Rating | Symptom when turning on the main switch | |
|---|---|---|---|
| 120V | 220V - 240V | ||
| FU101 | 15A/125V | 8A/250V | The i-controller works, but SC547 is issued. (5 V power to the fusing unit is not supplied.) |
| FU102 | 10A/125V | 5A/250V | No response. (5V power to the PSU is not supplied.) |
| FU103 | 2A/250V | 2A/250V | AC power to the scanner heater and tray heater is not supplied. |
| FU4 | 5A/250V | 5A/250V | 5V power to the i-controller and BCU is not supplied. |
| FU5 | 5A/250V | 5A/250V | 5V power to the BCU is not supplied. |
| FU6 | 5A/250V | 5A/250V | 5VS power to the i-controller is not supplied. |
| FU7 | 10A/125V | 10A/250V | 24VS power to the BCU is not supplied. |
| FU8 | 10A/125V | 10A/250V | 24VS power to the BCU is not supplied. |
| FU9 | 10A/125V | 10A/250V | 24V power to the DRB and i-controller is not supplied. |
Caution
• For continued protection against risk of fire, replace only with same type and rating of fuse.