I removed the rail voltage wires both sides one at a time from the audio board just in case the audio portion was casing stress on tje powersupply. No change, I can power the amp for about 45 secs while it's hissing and the outputs heat up. At this point I need to remove the board
Since ordered caps I ordered a tl494cn ic and optocouplers. Replaced them as I replaced the caps. Amp powers up and still hissing. Have square wave but is a bit fuzzy probably due to transformer hissing. Have rail voltage. But NOW the power LED does not power on. Does power LED switch from the tl494?
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