I was forced to buy a new whitestar board as my board was unrepairable, which sucks and I bought a brand new one. The game would not retain any settings. I started diagnosing the keep alive memory circuit and to my suprise there was no diode from the battery source connecting to the chipset. Never saw this before. I put in a diode and fixed the issue. It has voltage now and retains settings. Figured I would share this for anyone that has a memory issue.