Simpsons Graphic issues

katoskave

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got a dedicated simpsons machine here and for some odd reason some of the graphics have lines through them. Any Ideas?
 
Pics might help, but have you tried reseating the eproms on the PCB?

Before going through the arduous task of reseating though, try this:
Turn off the game and press down on each of the socketed chips one by one...try again and report back.
 
Bad mask roms, almost guaranteed. Flip dip 3 on bank 3 to on and reboot, give it 5 mins to run the indepth tests (looks like its crashed while it does).

The only socketed roms on Konami boards of this vintage are the program roms, issues there would stop the board booting.
 
Try pressing the ROMs down first. Mine was doing that at first and one pass of pressing the ROMs down worked. You might want to pull the board and do it on a flat surface, IIRC some of the ROMs are towards the center of the board and you can crack boards that way.

ken
 
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