RF Output Waveform is Severely Distorted and Very Low Power
Symptom
RF Output Waveform is Severely Distorted and Very Low Power with Erbtec RF Amplifier Looks bad, both at input and output of directional couplers. With APB bypassed, Erbtec Amplifier output waveform is no longer distorted, but very low amplitude. Verified tuning cap motor positions are ok, and tuning shafts not slipping. Swapped Solid State Amp board, still same problem. Verified adequate power is coming into the Solid State Amp from Exciter. Adequate power is coming out of Solid State Amp going into IPA section.
Error message
Erbtec 62 Fault Insufficient Power for AFT if AFT is attempted
Applies to
- Models
- Signa
- Product
- Signa Horizon (5X Horizon) 5X Horizon systems
- Software
- 5.X
- Component
- 46-305000P3 ERBTEC 176–1001 3CPX800A7 TUBE (IPA Tube)
- Area
- MR
Full cause & step-by-step resolution
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