I have a PC Engine DUO. It has been RGB modded and I recently performed the jailbars fix by replacing C923 and C909 with a 4.7 uF capacitor from Console5. The install went well and there are no more jailbars which is great. Unfortunately, after the install, my system had issues reading CDs (original Super Cdrom2 games not CDRs). I tried installing a new laser but the issue remained. I used this topic,
https://www.pcenginefans.com/forum/index.php?topic=8926.0, to attempt to tune POTS. I had it working at one point but of course I messed with it again to get CDRs to read and now I can't get anything to read correctly. Currently the game loads bunch the CD music has a lot of skipping and distortion.
I've been trying to set my POTS values to the following as per the sticky thread:
vr101:AB=12.33 AC=10.65 BC=19.55
vr102:AB=7.89 AC=8.11 BC=11.28
vr103:AB=7.25 AC=7.14 BC=18.46
vr105:AB=0.38 AC=0.00 BC=0.38 (0.30 for this one as per later thread comments)But I'm not sure what leads are what when reading AB, AC and BC using a voltameter. Can someone clear this up for me? Much appreciated