SOLVED Aion FX DC 2 clone distortion troubleshooting

[Fontelroy]

Anyone have any tips on what to do to address the distortion goin on with my aion fx blue shift build?

Blueshift Spatial Chorus / BOSS® DC-2 Dimension C

Build a clone of the legendary BOSS DC-2 Dimension C spatial chorus pedal that fits in a box the same size as the original.

aionfx.com

https://soundcloud.com/ej-crough%2F2023-10-13-dc-2-distortion

I've replaced some of the ic's that I had substituties for including:
ic 1 - opa2134
ic 2 - ne570
ic5 and 6 - tl072
ic 7 - tl022
ic 11 - ne570
ic12 - opa2134

if anybody has been in this situation and knows what to do or has any info i'd greatly appreciate it!

 

[Cybercow]

Only because it was not mentioned . . . did you follow the "Calibration" procedures (starting on page 7 of the build doc) carefully? And if so, was it done with or without a scope?

Also, any good, clear, close-up photos of the PCB and wiring?

 

[Fontelroy]

I did follow the calibration, but found those controls did not effect the distortion I was getting. However, I have made progress on this! I replaced the bbd chips this morning and it seems to have fixed things!