If any expert on WPC design and circuitry could chime in, that would be greatly appreciated
In a nutshell, I have installed one too many mod on my Indy, which seems to have an effect on 12V power rail. Without this mod, 12V rail is at 12.5V (similar to my TZ next to it), with it 12V is at 11.8V.
This seem to result into the left flipper being excessively weak. If I remove the mod (it's an HD DMD, a derivative of PIN2DMD, higher size), I get back my original flipper power. Note that this only happens in-game, I have full flipper power while in test mode.
I want to understand the exact failure mechanism. I understand that I need to fix my 12V rail, I understand that the 12V can have an effect on the Fliptronic board and/or the flipper switch opto boards.
What I want to understand is why. Looking at the schematics, I see no reason why a lower than 12V rail on the flipper opto board would actually cause the flipper to be weak, since the switch is essentially triggering the activation, not the duration of the pulse (which would be the reason for the coil to not have full power).
Any insight ?
Thanks and regards