The main wire harness going to the PCB's might have loose connections. Need more troubleshooting. It should tagged as out of order.
I cannot get a stable picture. Could be bad roms. Reseated all chips and pcbs interconnection. Adjusted horizontal pot, but the game should be tagged as not working. I pulled the pcb set and will test it at the Hanger.
Adjusted horizontal hold and brightness. Still need to make more adjustments. The game is working with small graphics issues.