Filament Driver Board — 00-8797220-5
Drives the X-ray tube filament. When it fails, the system won't expose, usually throwing kVp or mA errors on the station display.
Fits
- GE OEC 9800
- OEC 9900 (select revisions)
Diagnosis
Classic symptom cluster:
- Error code on expose attempt
- No audible relay click when pressing the foot switch
- Generator self-test fails filament circuit
Before replacing: verify generator calibration is current and check the connectors for the usual loose-ribbon-cable issue.