Rookie here....
I just got this machine 2 weeks ago (my first).
It played fine for the 2 weeks except for some DOT Matrix resetting issues.
A few nights ago, I installed a new harness for the DOT matrix that I found Sega put out to fix the occassional "resetting" problem (that I was having) with their machines.I also replaced all my gamefield lights with LEDs , and after spending all night doing this and cleaning while things were off, I fired it up and played a game (good one that lasted 15 min. or more and everything was fine. I was on cloud 9 because these lights made this thing sparkle!! Couldn't wait to get home the next day to play more.
The following day while I was at work, my son played a game or 2 without any issues, and then later on turned it back on and there was nothing but accent lights on the playfield and backbox lit up? There is no sound,DOT matrix screen, and nothing will work. He showed me when I got home from work, and I immediately noticed a blown fuse (F1). Thought that was the problem, but I replaced it, and still nothing worked, and it will blow the fuse in about 20 seconds.
I also noticed, that it looks to me (in the manual) that the fuse in this slot (F1)is supposed to be a 7 amp slow blow. but the one the machine had in it here is a 15 amp slow blow. The F2 slot beside it was/is empty, and (worked fine this way), but the manual says there should be anothe 7 amp slow blow here as well.
The first thing I assumed was that I caused a short somewhere while changing the bulbs OR it was the new harness, But what doesn't mesh with that is that I played a long game when I finished and it worked fine? And my son played a while the next day. I also thought maybe I left a screw lay on the playfield and it ended up somewhere causing a short.I switched it back to the old DOT matrix harness with no results, and cannot find any obvious wiring short (plus as I said it played flawlessly for 15 min. after my changes, and a game or 2 the next day).
When I first looked it over I noticed when you turned it on (2) of the kickback plungers would be engaged. this has stopped now and when you turn it on there is no display, actions or sound just the backbox lights and the playfield accent lights (not any of the gameplay lights).
Any Thought would be appreciated!