Power Supply for Leo X??

[Harris529]

I've built a Leo X from, Dead End fx  https://drive.google.com/file/d/1sFCZFCuWOLBSx4QH2nApUZrV6_f6ECI5/view  This is an AC powered pedal.  The power supply includes + and - DC voltage.  The build instructions state that that both should be adjusted (via trimmers) to between 10 and 11 VDC.  I've got the + voltage at a completely stable 10.53 vdc.  The - voltage on the other hand is all over the map and is unstable going from 17 to 10 vdc and the trimmer seems to have little affect.  Anyone have any idea what is going on?  Is the voltage regulator bad?  Thanks!!!!!  (by the way...the pedal is working and sounds awesome!!!!)

[digi2t]

Quite possibly a bad regulator, or maybe the trimmer itself.

VERY IMPORTANT!!!!!
Also, please ensure that the electro caps are installed correctly. We recently had one PLLone builder toast his negative regulator because he installed one of the filter caps the wrong way around.

[antonis]

In case of no PCB pin-out error (Negative Voltage regulators have interchanged Vin & Vout in relation to Positive Voltage regulators) and no defective LM337, check for proper mounting of TRIM1 and/or R1..

edit: +1000 to digi2t electro cap orientation..!!!

[Harris529]

I got it fixed.  The trimmer was bad.  Of course, I did not have an extra one. I did wire in a a temp solution.  The pedal sounds awesome!  I'm really looking forward to getting it back in the housing and putting it through it's paces without jumper wires hanging out everywhere.  New trimmer should be here Saturday.  Thanks for the help!