Moog Music Forum

Ackkkkk....NOOOOOOOO!!! (Just kidding). One thing you could try is connecting a clip lead from the CA board LFO directly to the shorting terminal of the external Jack. You’d have to purchase a mini clip lead but this would validate what I’m claiming. Once you do this we could go from there. Or take ...

Damn - I just lost my very lengthy reply ( maybe best) There's not supposed to be a wire on pin 2 of P42 - I think you're looking at the wrong part of the schematic. N/C means No Connect so maybe that's where the confusion comes from But also know there are some errors on these schematics. However i...

OK- that pic looks good as far as I can tell. And the lifted side of the resistor is what goes to the LFO LED so all good there. It's the other side of the resistor R187 that provides the clock output to the Digital board and I don' t think there's anything wrong there. Re-seat the S21 connector on ...

Hi Laurent- Understood regarding the replacement jack. You need to confirm that you used a "switching" jack (also called a "shorting" or "shunt" jack). It has an extra contact that shorts a second signal to the tip when there's no plug in the jack. When you insert a plug it pushes that second signal...

I forgot that your arpeggiator works with external clock- never mind the reset. Btw mine is working now, something from the midi input temporarily froze it but all is well now. I believe your problem is extremely simple; as Synthpro indicated you’re LFO clock is not getting to the input device on yo...

Ah, I misunderstood thinking the 3360 was bad when it was just a dirty socket - even better. Sorry to confuse you regarding the Hold function. I just meant that the mono button was not lit when you engage the hold function. You can light up both the Mono and Hold buttons at the same time but I don't...

Hey Laurent- Actually I don't leave for NAMM until Tues morning. When you mentioned Sunday for getting to this I was concerned I might get busy with preparation before departure. Anyway - that's awesome - well done! I spent several hours since my last reply re-studying everything that affects the mo...

"Noob" or not I really admire your enthusiasm and "never give up" attitude. I'll spare you the rationale for why the CPU is not the problem but trust me - it's not. I will have to look up the difference between the part you specified and the original. Often times the difference is not a factor - but...

Here are a few more things you can try. Do one at a time with power off and check operation after each step 1) Re-seat (remove, check for bent pins and re-insert each end) the flat ribbon cable going from DMUX board S58 to C&G board S32 2) Re-seat (remove, check for bent pins and re-insert) the flat...

Drat - so much for guessing. I'll let you know if I come up with anything else. These things tends to play over inside my head for a while.

Yes - 4558 is interchangeable with 1458.

Based on your foot pedal inputs working I would say that your "bleed" problem is not related to this mono issue. Also I think the LFO issue is unrelated as well - we'll get to that later. If I had to make a guess at this point I would trying changing out U10 (4016) and then U7 (4558) on the Contour ...

OK, just wanted to make sure. To properly isolate this to the right part you need to be able to examine some voltages. This does not look like a very difficult problem with the right tools and know how. Probably best to take it to a service tech at this point. I realize that's not what you were hopi...

Just to confirm I assume you don't have access to an oscilloscope?

Yeah, standby please. The reset won't help anyway.