wontwa
Member
Found some back threads related to this, but no definitive answer.
Just picked up a Galaga board from a fellow member, and when the game boots I got a "RAM OK, ROM 01" Error. This error displayed correctly upright. Pulled the chip at 3N, cleaned the legs, reseated, and now the game boots with the RAM/ROM OK in the correct position, then the scrambled carpet and grid and the game image is flipped upside down. You can credit up the game and play (upside down). Due to the original words displaying properly, I'm reluctant to mess with the yoke wires. Any idea where to look on the board to resolve this?
Thanks!
Just picked up a Galaga board from a fellow member, and when the game boots I got a "RAM OK, ROM 01" Error. This error displayed correctly upright. Pulled the chip at 3N, cleaned the legs, reseated, and now the game boots with the RAM/ROM OK in the correct position, then the scrambled carpet and grid and the game image is flipped upside down. You can credit up the game and play (upside down). Due to the original words displaying properly, I'm reluctant to mess with the yoke wires. Any idea where to look on the board to resolve this?
Thanks!


