That80sGuy #1 Posted April 6, 2005 I have a 1942 that has barely audible sound. I can turn the volume up and down but you can't hear it unless you put your head up to the speaker. Anyone have any suggestions? I can't find any schematics for the boards. Thanks! Quote Share this post Link to post Share on other sites
That80sGuy #3 Posted April 7, 2005 Hmm ... There is a finger size hole in the paper part of the speaker. But so I hooked up a known good speaker and the result is the same. Its like the sound output is not being amplified. Quote Share this post Link to post Share on other sites
Bryan #4 Posted April 7, 2005 Sometimes there is a separate voltage output for the amplifier chip. Make sure all your voltages are good. -Bry Quote Share this post Link to post Share on other sites
chadtower #5 Posted April 8, 2005 You should also check the volume potentiometer. If that's no good you aren't going to get predictable results. My best guess, though, is insufficient voltage out of the sound circuit someplace. You could be looking at a bad op amp in the audio portion of the PCB. Quote Share this post Link to post Share on other sites
That80sGuy #6 Posted April 18, 2005 Without schematics..does anyone know which chips are involved in the audio circuit? Quote Share this post Link to post Share on other sites
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