1 channel good the other one even with a 27 ohm load oscillates at 65
percent of mains and above, bursts peaking at 40 KHz dropping back to much
lower f, extinguishing and restarting over 5 seconds or so.
power amp probably much like Carlsbro S600M
Anyone have any leads to schematic?
uses 4x MJ15024 , 2x SM2177A, 2x SM2178A each ch
predriver DC levels (prior to oscillation) certainly different to the good
ch but no obvious reason other than rain got into the amp
A lamp will go in each of the +/- rails before I fiddle again

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