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Zero Point Mini troubleshoot

Started by HailToTheBlues, October 31, 2014, 07:58:47 PM

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copachino

Quote from: HailToTheBlues on November 01, 2014, 10:52:45 PM
Quote from: Matt on November 01, 2014, 08:27:06 PM
Quote from: HailToTheBlues on November 01, 2014, 06:38:04 PM
Quote from: Matt on November 01, 2014, 04:56:28 PM
If none of the above works you might want to try a different pt2399. I had a somewhat similar issue with the one I just built. The difference was I was getting just over 5.5 volts at vc, 2.7v at vb and around 4 volts at the pt2399. I was getting a clean signal but no delay and the modulation led wasn't working. I tried a different pt2399 and it works fine now.

Good luck!

The thing is that i don't have sound at all when it is bypassed, and the rate led is working as it should, so i don't know if it is the same issue. Also i purchased the pt2399 from Dr. Tweek, and people here said that he tests his pt2399, so i think it is unlikely that the problem is from the IC.
My apologies I didn't realize that you were having issues when bypassed as well. I would try to resolve that first.

But just to complete my reply, i have no sound when bypassed, but i have normal sound when the effect it's off.

hotos, i forget sometimes to put the bypass jumper in my wiring, may be you problem
Affiliations: madbeanpedals fan and pedal porn lover....

HailToTheBlues

So i tried to desolder the 3pdt and connect it directly to the jacks, to see if i had a bad 3pdt, but the issue remained, so i'm really thinking that the problem is on the pcb. How can i know if i have a bad part?

gtr2

Even with those voltages you should still have a signal passing through.

You really need to look into building a simple audio probe and tracing through the circuit.

http://diy-fever.com/misc/audio-probe/

Josh
1776 EFFECTS STORE     
Contract PCB designer

HailToTheBlues

Well, just want to tell you that the pedal is working, if i find any more issues i'll post is this thread.
Thanks for all the help! Best regards.