I put a Monte Allums mod kit in my DS-1 and liked it alot. But as I was assembling the pedal I broke the on/off indicator LED. Then the pedal was on all the time and couldn't be switched off with the foot switch. I later got a new LED and put it in backwards and the pedal didn't work much at all. After putting in a new LED the right way the switch works but the pedal sounds weak and has to have the level set to full just to get it close to usable volume. What the heck did I do to this thing. I really liked the modded pedal and would like to get it back to working again so what do you guys think is causing this lack of output? Something involving the LED being broken and then backwards?
Well that's a lot of variables as far as things breaking, BUT I may have a solution. The volume drop is due to the n4001/n4002 diodes being used for clipping. I used that mod kit, but had the same unity gain problem. Lower the value of R7. Stock it's 470k. Try 200k or 100k. I discovered this on my own after experimenting and reading the schem. Then I discovered that after getting the unity gain back up that I didn't like mod kit after all and started over with my own.
Return the pedal to stock and start over -- one component at a time, and test to note any changes as they occur. Only way you'll know for certain exactly what caused the trouble.
Diggum: Thanks for the reply and I will try that but with the broken indicator led it was plenty loud, it just wouldn't turn off. Could have running it with either the broken light or the wrongly installed one have burned out something else?
DS-1 problems
Posted - 10/17/2006 : 22:58:06
