runoffgrove mockman PCB?

[movinginslomo]

She's finally together boys, but she's passing a very weak signal.. any ideas where to start? I checked with multiple IC's (including verified legit new) so I don't think it is that

[jimilee]

She's finally together boys, but she's passing a very weak signal.. any ideas where to start? I checked with multiple IC's (including verified legit new) so I don't think it is that

Voltages, clear closeup pics or front and back and a schematic. Reflow all your solder joints, check for bridges and reflow all your solder joints.


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[movinginslomo]

reflowed and checked values. I did notice on zombiesnore's build doc it calls for a 47n output filter cap while on the runoffgroove site it calls for a 470pf cap. I am using a jrc4558 op amp. I am going to breadboard this circuit and see if I get the same result

[zombiesonore]

If there's a difference between my doc and runoffgroove's schematic then the mystake is on my side of course.
I'm not at home this week so I don't have access to my files for checking any mistake...

[movinginslomo]

If there's a difference between my doc and runoffgroove's schematic then the mystake is on my side of course.
I'm not at home this week so I don't have access to my files for checking any mistake...

when I get time I'm gonna try and breadboard the parts and see if it works as intended.

[zombiesonore]

Hi !
As I don't have access to my kicad files, I've downloaded my own pdf...
1) Why didn't I put my schematic on the pdf ? Why ? :-/
2) On my B.O.M. the output cap, parallel to the volume pot, is C7 and call for 330p to 680p (Cx on runoffgroove's schematic). So no mistake here. 470p is a good start.
3) Can you post photos of your build, maybe it's a simple wiring issue ?

[zombiesonore]

Footswitch wiring scheme is the same as the one found here https://www.madbeanpedals.com/projects/_folders/DistBoostOD/pdf/Deadringer2022.pdf (left switch of course.)
For the jacks, pads are left: GND, right: signal, components side.

[movinginslomo]

yes I used madbean switch wiring. I'll try and get some pics when I have some time

[movinginslomo]

life gets in the way. Pics or it didn't happen?

[zombiesonore]

Here's my schematic attached.
Main difference is that I put a 1N5817 diode instead of a 100 Ohm resistance.
Added a 100n capacitor for IC power filtering.

On your pictures I didn't see any wiring mistake so maybe just reflow everything and check for bridges ?

[movinginslomo]

ah thanks I'll breadboard at some point