...problems in the vertical circuit which are somewhat common in that unit model. First I would test R561 0.47 Ohm for an open condition and test and/or replace IC541 with a TDA8172. IC541 is your ...
...the capacitor between the inputs 2 & 4 of IC541, I did not check with IC541 floating. Resistances R561 & R562 are good with 0.47 Ohms. I would like to jump the relay RY602 to achieve high voltages ...
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