Hey All,

First, thanks to everyone who has helped with tech items in the past.

I happen to have an odd issue with a Twilight Zone involving the sound and DMD display. Everything appears to boot up and work properly but the DMD has vertical lines across it, spaced evenly, and the sound plays incorrectly. For the sound, on boot the game produces one sound bong which I believe indicates everything tests OK. It boots properly with no errors and then plays the jackpot sound effect. In the test menu incorrect sounds are played while navigating menus/exiting. The DMD has lines throughout and some of the screens are garbled/incorrect. The game was working properly up until I knocked off the +12v supply wire on the connector of the left flipper opto board while changing the start button bulb which I have corrected. My initial thought was to re-seat the ribbon cables and to gently press on the roms/chips on the CPU in case of loose connections but this did not correct the issue. Any ideas on troubleshooting this?

IMG_4632.JPGIMG_4633.JPG

Yeah this is exactly what I thought so I reseated all the ribbons but nothing helped is it possible one of the ribbons is actually bad I happen to have a world cup soccer here that I could check and see if the cables are the same to try those.

I did try to disconnect the ribbon cable for the DMD and boot the game and heard the same jackpot sound so I am assuming the DMD itself isn't at fault.

You guys were right. I followed mikes steps exactly and when trying the 4 connector ribbon cable from the World Cup soccer everything was corrected. Now to find somewhere to buy the cable.

Thanks everyone I owe you all.image.jpg