I recently acquired a Virus B for parts that wasn't turning on and the screen was flickering that I ended up bringing back to life after recapping it and changing the old voltage regulators for new ones. I'm currently having a weird issue with that where it's outputting 5.1V on the lm2575 chip ONLY when the screen is plugged in otherwise it seems to be outputting correctly. It seems I have a short? Or dead chip somewhere but without a real schematic (I have part of one but its incomplete) it's hard to figure out. When the unit is on the controls randomly change to the effects section whenever I touch any of the controls and a few random LEDs are staying lit up which I'm guessing is caused by the high 5.1V rail feeding to the DSP. On the front panel board I also changed a few chips to try and fix the issue I was having with the controls randomly changing when I touch stuff since I read about that somewhere but I'd need to find it again. Anyway, if any more info is needed or if anyone has any idea where to look I'd definitely appreciate it!