Ricoh G133 Service Manual page 260

SC Table
No. Type
IH inverter input voltage error
The IH inverter detects 70V or less/140V or more for 10 seconds.
581 D
1.
2.
No. Type
IH inverter current error at power on
The output current from the IH inverter does not reach the proper value
when the IH inverter turns on.
582 D
1.
2.
3.
4.
No. Type
583 D IH inverter communication error
The IH inverter does not get the communication signal from the IOB.
G133
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Unusual input voltage
Disconnected CN981 on the IH inverter
Defective IH inverter
Check CN981 on the IH inverter.
Replace the IH inverter.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Disconnected power input terminal 1 and 2
Defective IH inverter
Defective IH coil unit
Defective fusing unit
Check the power input terminals 1 and 2.
Replace the IH inverter.
Replace the IH coil unit.
Replace the fusing unit.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Broken connection between IH inverter and IOB
Defective IH inverter
Defective IOB
4-44 SM