If it is still playing music without distortion or hum, then it could be:
1) Abnormal load on one side.. shorted coils? Remove the speakers to see if condition persists.
2) Bias needs setting... check the bias on both channels ensure they are within 1-2 mVdc across the TP or across the emitter resistors for both channels. I forget the exact setting but 10mVdc across the tp seems fine as reference.
3) If Bias is ok, then One channel has some oscillation that would require a more indepth check up...
1) Abnormal load on one side.. shorted coils? Remove the speakers to see if condition persists.
2) Bias needs setting... check the bias on both channels ensure they are within 1-2 mVdc across the TP or across the emitter resistors for both channels. I forget the exact setting but 10mVdc across the tp seems fine as reference.
3) If Bias is ok, then One channel has some oscillation that would require a more indepth check up...
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.