MXR PHASE 100 PCB TRACKS HELP

Nicale19 · Post by **Nicale19** » 31 Oct 2022, 18:48

Unfortunately I had to change the ics of this pedal and I ruined tracks.

Does anyone have a way to give me a scheme or layout for this version that I can't find anywhere?

Nicale19 · Post by **Nicale19** » 31 Oct 2022, 18:50

https://mega.nz/file/dI9WCZqR#scWuFdR3K ... kixwiOpSns

mauman · Post by **mauman** » 31 Oct 2022, 19:37

Here are two threads that contain schematics and PCB layouts. I'm not sure if you have the same or different version:
viewtopic.php?f=19&t=2071
viewtopic.php?f=38&t=5727

Nicale19 · Post by **Nicale19** » 01 Nov 2022, 04:20

mauman wrote: ↑31 Oct 2022, 19:37 Here are two threads that contain schematics and PCB layouts. I'm not sure if you have the same or different version:
viewtopic.php?f=19&t=2071
viewtopic.php?f=38&t=5727

Thank you.

But I cannot authorized to look second post

mauman · Post by **mauman** » 01 Nov 2022, 14:11

Reposting PCB layout here, that's the only new thing in the second post. It may not match your version. Can you see the first post? That one includes schematics and discussions.

: Phase 100 PCB layout

Nicale19 · Post by **Nicale19** » 01 Nov 2022, 17:12

mauman wrote: ↑01 Nov 2022, 14:11 Reposting PCB layout here, that's the only new thing in the second post. It may not match your version. Can you see the first post? That one includes schematics and discussions. Phase 100 001.jpg

I thank you very much for your help.

Unfortunately Layouts do not correspond but
Fortunately I managed to recover the circuit with a careful visual analysis of the tracks through a lamp. The circuit is very delicate
Now, I replaced the ic062 with 072, the effect is more Audible
Too much, in fact in position 1 and 3 goes into squeal due to amplified frequencies too high

I think something needs to be modded to reduce these squealing frequencies.