I have trouble finding the fault of this amplifier all the good and source output transistors, I have audio at the output but at idle without any loudspeaker or RCA I have +47 and -47 but I intrudusco a signal in RCA and I raise gain and voltage - It starts to rise and arrives until 80v and it is protected, I guess that is why the capacitors were blown, it has 63v 1000uf already checked drive and change all the double pre amplifiers I have +15 and -15, does anyone have any idea what it will be?
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
The low-side drivers are likely defective. This generally just causes the negative rail caps to fail. On this board, I think they are Q35 and Q36. They are MPSA42.
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