Eight Ball Action Repair Logs
Board is a conversion for Donkey Kong Jr by Seatongrove Ltd.
1MHz clock is missing. Clock circuit is working fine. Replaced bad board interconnect ribbon cable. Board now had video but no sync. Fixed broken legs on the horizontal and vertical adjustment pots. Tracked sync problem to card edge connector. Cleaned edge connector to repair.
Board now had sync but had garbage on the screen. Reseated the program EPROMs and it booted. Replaced 3 program EPROM sockets and 2 other EPROM sockets on the CPU board to finish the repair.