Hi all,
Just a tip+demonstration for anybody interested in LED OCD.
I was experiencing terrible, head-ache inducing, flicker on my GI lights (the effect is exaggerated by the video recording/frame-rate, but still very much visible to the naked eye if looking for it):
I also had equally as bad flicker on my inserts, but that video is taken after installing the LED OCD hardware to control inserts (which worked perfectly!).
After installing the LED OCD Gizmo (which is the GI smoother for SAM/Whitestar games, and hence LOTR's), things look much better:
(Apologies for the video qualities. I made these as a short demonstration of a problem I thought was related to LED OCD but wasn't - read below).
Huge shout out to LED OCD for such awesome products solving my problems!
However, the keen-eyed among you will notice that the lights along the backboard of the playfield are out. It took me a lot of diagnosing/trying different configurations with such as with/without the Gizmo board, fuses, LED types etc, to figure out the problem. I'll save you all the details, but it turns out on my game there was a diode leading to the backboard lights:
Diode on GI lights.
Not sure if this is standard or on other peoples games? If it is, then likely mine is installed in the wrong direction or on the wrong wire. I believe if it was on the other wire and placed the other way around it would still work fine for AC globes and also with the Gizmo mod (I'm not an expert though so you would need to confirm for yourself). My guess, however, is that the diode was installed by whoever did the poor job of installing cheap LED's on the machine prior to me.
Regardless, in my situation, removing the diode (or shorting it) solved the problem for me and I have backboard lights again! So should anybody have any problem with only some or none of their GI lights working when installing the LED OCD Gizmo board: have a check for errant diodes!
I also want to give a huge shout-out to Comet Pinball (who are the distributors for LED OCD) for their super quick support, help in diagnosing the issue, and very generously sending a replacement Gizmo unit out unprompted when the initial thought was a bad SMD fuse.