Hi guys, my TB-303 has some problems and I thought I would ask around if anyone knows how to fix them :)
1. line output not working yup :( no output. There is "perfect" output from the headphones output. 2. headphone output has a faint sound of digital buzz When the LEDs are blinking, I can hear a buzz when the LED is on. This might be the way it worked out of the box - but if so I would like to fix it with some mods. The sound is fairly prominent and can be heard when the synth is playing as well, making it useless for what I want to do (i.e. put the 303 stems in a mix not obscured by a lot of other sounds. I understand you wouldn't hear that in a very busy mix) 3. power-on thump I assume this needs some replacement of the electrolytic caps, but not sure which ones exactly. I wouldn't want to just go wild on it and replace everything 4. decay knob doesn't do anything No idea why. This started recently. 5. (hopefully a mod exists for this) the filter cutoff range is too small. I know you can change the range around a bit with one of the trimpots, but that doesn't give me the needed range. I would like to go from around 30 Hz to 30k if possible. 6. Potentiometers are noisy and slow, i.e. difficult to drag: the resonance knob is especially slow! The others feel a bit wonky too and are probably quite worn. Is there a good replacement? 7. Waveform switch is wonky and sometimes doesn't close contact properly is there a direct replacement part - or do I need to open it up and recondition it? I would really like to avoid that :X BTW, is there a mod to change patterns in write mode? Thanks a lot, D.
