This Big Game 2-Stage restoration is now complete.
Play testing is happening this weekend, so far, no major issues.
As on most restorations, the Siegecraft Electronics LED adapter set was added to the lamp driver output lines, to prevent LED flickering; but 4 bulbs still flickered.
So, after looking for other issues, such as the sockets, bulb, pins, scr’s, metering the resistors on the affected adapter boards, then scratching my head for a day, I decided to add an additional resistor to the 4 bulbs affected.
I found adding a 100 ohm resistor worked.
I have never seen this issue on a Bally, and the only other Stern title I completed, Stingray was LED flicker free.
I have had a friend experience this on Stern Quicksilver, and Big Game.
Don’t fully understand the strange science behind this, but may post a later update.
The Big Game is working 100%, and such a pleasure to play.
This is moving to Texas.
In the pipeline Flash Gordon 2-stage, Phantom 3-stage, Cyclone 3-stage, Jokerz 3-stage, Firepower 3-stage, Bally Star Trek 3-Stage, and Nitro Groundshaker 3-stage