Any LEDs lit at all on the MPU board? Could you post a picture of the boards with the power on?
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Power-On_LEDs_and_Sound_Tones_.28Bongs.29
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Any LEDs lit at all on the MPU board? Could you post a picture of the boards with the power on?
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Power-On_LEDs_and_Sound_Tones_.28Bongs.29
Quoted from riggy469:Start button and flippers cause “attract” sound but game does not start.
At this point, it must not be set for free play, so you would need to add credits to the game to start.
Try doing these things with power OFF.
-Press on all the socketed parts on the MPU, including the U9 ASIC chip.
-Reseat J101, J102 (on right side of the big power driver board) and J114 on the left side and J210 on the right side the MPU board.
-Reseat all 3 ribbon cables that start at the MPU board, so that is 8 connections. (Be careful not to plug in the ribbon cable one row off)
If you still have a blank DMD, can you measure the voltages (-112v, -100v, 12v, 5v and 62v) at either J601 of the DMD controller board or at the DMD itself? Likely one of the voltages is out.
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Testing_DMD_Controller_Power
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