A few thoughts. Check ribbon cable from CPU to DMD driver board to DMD, be sure red stripe pin one each end and not off by a row.

Then measure the voltages at the big connector to the DMD, that may help where to go next.

LTG : )™

Try reseating your game rom first. Had a similar problem on my T2. And it was the rom socket. Second check the ribbon cable like LTG said.
Then check the high voltage section of the dmd driver boards test points.
If it is the HV section and you are not confident in replacing components just buy a rottendog dmd driver board replacement.
But also check the dmd itself, in another machine if you can.

If you have, or a friend has another pin you could test/swap boards and displays it would help.
Hope you get it fixed, great machine.

i have the same problem ...i already replaced the dmd driver board i just got it in the mail today ...i have a theater of magic ive been switching out parts with ...so i tested the display its good ...bought a new dmd power board its good ...tried the swapping out the small cable that goes from the display to the board its good ........so far every thing ive tested is good ...im at a stand still .... i walked away from the machine ..it makes no sense ..at this point id skip the rebuild but everything ive read on johnny is it will go out soon anyway ....im here trying to find an answer but i have the same lines on the screen no sound however long i leave it on ...i was gonna swap the other ribbons ....but i think im going to sleep ...tomorrow is a new day i guess ..i was so excited to see your post ..but totally bummed no solution oh well if i figure it ...ill let cha know ...i think the dude that sold me it knew there was an issue ...has a brand spanking new display in it super shinny bright ..on the plus side ...ill prolly swap it into my theater i was thinking the power clip thingy because when i slide it all the way on it does not work ...but if i slide it back some it makes those lines ..

I tried to grab this machine at the auction... congrats on winning it. I was trying to hold out for the austin powers but that went over my cap as well.

I hope you get it working! If you feel like playing some pinball you should head up to 403 club in KCK TONIGHT! we are having our weekly wednesday night tournament at 9pm. 403club.com for more info. There are several knowledgable pinheads that might be able to shed some light on your display problems.

Hey man! Best of luck. I was the guy who tied you at 1150.00 at the auction. Just reading your previous post, you should post pics of the progress....would love to see it. I think that playfield is going to clean up really nice!

i got it right ..the ribbon i swapped the other ribbons ive swapped basically everything so far ... i think i have a power problem as well because today i got nothing ....cant even make an ugly line ...so the plan steal theaters power driver board yup gonna swap that sucker out ...ill let cha know what happens next . and if that fails im gonna load her up and drop her at the pinball guru ....i think its in the board ..i really do ..just havnt found anything saying which part ..he has a tester ....so its a no brainer if it works after the swap and when he tells me what it is ..ill let cha know