Ok, so I repaired this amp. CH2 was fried. Replaced o/p transistors and two Fets. Both channels now work great into a load. When I switch the dip switched to bridge mode, (yes I know how to bridge these amps with these switches), I get a very feint signal and the CH1 clip LED lights with only a very small volume setting. Waveform on scope looks pretty distorted.
Any ideas? I can post a schematic.
Any ideas? I can post a schematic.
Could you post the schematic? Could be a dud opamp used to invert one channel for bridge operation or something but without the circuit it's just a guess.
In the meantime, have you checked the DIP switches? Do all of them still make and break contact as they should?
In the meantime, have you checked the DIP switches? Do all of them still make and break contact as they should?
Hi I have checked the dip switches and ribbon cable. All check fine. I agree its something to do with the inversion cct somewhere. Strange thing is both channels work separately ok.
Here the schematic.
It's in fact a .7z but I had to change it to .ZIP to get it through.
It can shed a light on the problem.
It's in fact a .7z but I had to change it to .ZIP to get it through.
It can shed a light on the problem.
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