I doubt that they're defective since the amp doesn't draw excessive current and doesn't have excessive DC offset.
For U301 and U302, pin 5, do you have a triangle waveform?
Same ICs, pin 7, do you have a square wave?
For U301 and U302, pin 5, do you have a triangle waveform?
Same ICs, pin 7, do you have a square wave?
I have a triangle waveform on both u301 and u301 for pin 5. I do not have a square wave on the pin 7 of either. U302 has a negative 5 straight line and u301 has a positive 5.
Perry what would cause pin 7 not to have a square wave on both ic's. Does this mean the amp is in shutdown? Or muted?
Maybe I should replace the outputs and rebuild the driver circuits.
Maybe I should replace the outputs and rebuild the driver circuits.
Solder a bridge between pins 1 and 2 of U301. Does that produce a square wave on pin 7 of U301 and 302?
Perry I placed a solder bridge on pin 1 and 2 and now I have a square wave on pin 7 of both chips. Still no oscillation on the output chips.
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