Diamondj421
Well-known member
- Joined
- Sep 24, 2016
- Messages
- 162
I’m currently troubleshooting a SoundSkulptor MP5.66 tube mic preamp. I was taking measurements to send to JPK (their owner) to see if I had gotten the right replacement for an OpAmp that I had broken. Pardon my lack of proper terminology but the OpAmp is an 8-DIP IC (IC with 8 legs) and despite JPKs endless warnings about shorting it while getting the measurements, I’m 75% sure that the probe made contact between pins 2 and 3. I’m not positive that this did anything horrific but I’ve been trying to check the circuits continuity and when I connect the cables to 0v and V+, I get the tone and then it’s gone. If I wait and test again, same thing so with my minimal knowledge I’m assuming it’s a bad capacitor? Is that possible? I’m guessing that the test signal is going through the circuit but then the capacitor maxes out/fills (can’t think of term) and so the test tone stops? Then when I test again after the capacitor drains the same thing happens again? I could be wayyyyy off on this.