If that's the signal on the gates of the FETs, the problem isn't the drive signal. The only exception to that may be if the driver IC is defective and the drive pulses are in phase instead of out of phase.
You can determine if the pulses are out of phase by using both channels to view drive waveforms from pins 9 and 10 at the same time.
It's more likely that the transformer is shorted.
You should try pulling the rectifiers to see if the excessive current draw is eliminated.
You can determine if the pulses are out of phase by using both channels to view drive waveforms from pins 9 and 10 at the same time.
It's more likely that the transformer is shorted.
You should try pulling the rectifiers to see if the excessive current draw is eliminated.
The rectifiers have been out of this amp the whole time.
What would i set the scope to and then touch pin 9 on the Ic to see what i get
What would i set the scope to and then touch pin 9 on the Ic to see what i get
If the FETs haven't failed, connect a limiter in series with the B+ line and twist the transformer to see if the current draw changes. Clamp the FETs to prevent them from failing.
I'll assume that you've carefully examined the solder connections to confirm that there are no solder bridges.
I'll assume that you've carefully examined the solder connections to confirm that there are no solder bridges.
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