Forum member Jake13 sent me his DK 4 board set for repair.
Here's what the board does during game play. Ignore the blue screen, the brightness is turned up too high on my Sanyo.
I have determined the problem lies on the clock board. eproms check out fine. Board acts the same way with different eproms plugged in. Swapped ribbon cables, no change. Swapped clock board to another working 4 board set, and the problem follows.
Where to start?
Here's what the board does during game play. Ignore the blue screen, the brightness is turned up too high on my Sanyo.
I have determined the problem lies on the clock board. eproms check out fine. Board acts the same way with different eproms plugged in. Swapped ribbon cables, no change. Swapped clock board to another working 4 board set, and the problem follows.
Where to start?

