Epops,
I'm surprised....... after all this criticism of others designs, you are finding it difficult to repair a faulty audio amp?
Isolate the diff pair. Check balance, measure all transistor be junctions, check VAS currents, bias, etc. This is not rocket science, and you don't need a schemat for this, you should be able to easily figure it out from the layout.....
Cheers,
Hugh
I'm surprised....... after all this criticism of others designs, you are finding it difficult to repair a faulty audio amp?
Isolate the diff pair. Check balance, measure all transistor be junctions, check VAS currents, bias, etc. This is not rocket science, and you don't need a schemat for this, you should be able to easily figure it out from the layout.....
Cheers,
Hugh
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