Sounds like it may be breaking into oscillation, causing volume loss and turning on the LED?
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Show posts MenuQuote from: gbono on September 02, 2014, 07:12:16 PMTry the same check with R14 and R23, should help isolate the problem a bit more.
When I lift R63 on the -9V supply I get -9V at ZD5 - someting is loading down the supply - but what?
Quote from: TolerBear on August 28, 2014, 01:24:04 PMI think you mean two TIP32 and a TIP31. Then the 4th device on those individual heatsinks can be seen in the pics as a 7824 regulator.
There's 2 7832 regulators and 1 7831. .
Quote from: TolerBear on August 25, 2014, 03:37:05 PMThis is the original resistor? What value did you replace it with? From the other picture it looks like you installed a 300 ohm?
Quote from: BrianS on August 21, 2014, 04:45:44 PMI was lucky to find them for free, and lucky they were 8 ohms. I'm not 100% sure they were base board heaters, but was told they were. I believe they were industrial as they came out of a college.
g1, can you tell me a little more about the heating elements? I may have a couple different sources for something like that. Was it luck that they ohmed out correctly, or lucky that you found them?