ParkingLotLust
Member
Hey guys,
Ive built a "Bass Beat Extractor" and controller from here:
sound.westhost.com/project62b.htm
and it worked. But then it stopped working, and now I can't figure out how to make it work again. Ive replaced the trimmer (VR1) with another pot, and also replaced IC2, as Im not getting the signal I expect out of it.
The expected output is a waveform sitting at VCC until there is a bass beat, at which time Id see a negative pulse to trigger the 555. Right now it just sits at VCC.
Keep in mind, it was working at first, I used it for about 3 hours, and then the lights started to "stick" on. They would stay lit up for a few seconds and then go out. Eventually they just stayed on and wouldnt go off. After about five minutes they went off and we're at the present.
Any ideas would be appreciated. I have a scope and can measure/test anything suggested. Thanks!
Ive built a "Bass Beat Extractor" and controller from here:
sound.westhost.com/project62b.htm
and it worked. But then it stopped working, and now I can't figure out how to make it work again. Ive replaced the trimmer (VR1) with another pot, and also replaced IC2, as Im not getting the signal I expect out of it.
The expected output is a waveform sitting at VCC until there is a bass beat, at which time Id see a negative pulse to trigger the 555. Right now it just sits at VCC.
Keep in mind, it was working at first, I used it for about 3 hours, and then the lights started to "stick" on. They would stay lit up for a few seconds and then go out. Eventually they just stayed on and wouldnt go off. After about five minutes they went off and we're at the present.
Any ideas would be appreciated. I have a scope and can measure/test anything suggested. Thanks!
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