Whats up fellow arcade brothers and sisters!
I recently purchased my first arcade game, Ultimate Mortal Kombat 3 =) loved this as a kid and had to have me one! so that means you have another newbie on your hands! =( Anyway found a cheap one that worked well but had a few issues. The last one i cannot tackle is monitor issues. I've taken a video of my issue and posted in youtube at the following URL:

http://www.youtube.com/watch?v=y2cryGin654

As you can see it looks good when the screen is smooshed down in the beginning of the video, almost like a widescreen. But when i increase the screen to normal size i get that huge horizontal line all the way across and it distorts everything at that line. I've messed with all the controls for the monitor, the controls in the back on the monitor board itself and nothing is working. The sticker on the monitor says Aug 1994 so i'm willing to bet that's my problem ha! Just wondering if anybody can shed any light out there as this is my first arcade project. New monitor? Get a cap kit and install that? Get a new video board? any help would be appreciated! thanks!

Hmm.. It looks like one of two things; either the monitor that you've got in your MK3 cab does not support the games native resolution (someone might have replaced it in the past) or you need a cap kit.

I'd try googling the serial number/model number on your monitor and see if it's compatible with the game and if it's original. If you've got an original monitor in there then it most likely needs a cap kit.

well thank you sir for the reply!
numbers on my monitor are: R-A63ADG25X
serial number: 1096154
and its not the original midway case just to throw that out there. here are some pics of the cabinet and board for the monitor.

http://i39.photobucket.com/albums/e163/ ... AG0636.jpg
http://i39.photobucket.com/albums/e163/ ... AG0637.jpg
http://i39.photobucket.com/albums/e163/ ... AG0638.jpg
http://i39.photobucket.com/albums/e163/ ... AG0639.jpg
http://i39.photobucket.com/albums/e163/ ... AG0640.jpg
http://i39.photobucket.com/albums/e163/ ... AG0641.jpg
http://i39.photobucket.com/albums/e163/ ... AG0642.jpg

well...bad news, i just screwed my monitor up im pretty sure! was being careless and trying to clear out cobwebs and accidentally hit the board that connects to the tube. the pins on the tube are all bent.
wtf to do now! buy a new monitor of course but do they come with the boards so it would be plug and play? or should i get just a monitor and use my boards? if i do that tho i would be stuck with the problem i would think...

oh and im pretty sure the glass at the end of the tube is broken along with the tab thing at the bottom right...

http://i39.photobucket.com/albums/e163/ ... AG0643.jpg
http://i39.photobucket.com/albums/e163/ ... AG0644.jpg

UPDATE

bent the pins on the monitor back into place that i bent and put the neckboard back on. everything was good but of course it still had the same issue. bought a cap kit and replaced 30+ caps. put everything back together and still have the same issue. any ideas anybody because i am fresh out! thanks!

Hmm ... Some bad luck you're having here.. Sounds to me like a broken tube/monitor and I don't think you can do much other than replacing it. If you have the possibility, try hooking it up to another monitor/TV and see if the picture is good.

my neighbor has MK2 but thats too much work to swap his tube into mine, much less if he will even let me. say i do that and its fine, my monitor is the issue of course. if it still has the problem what could it be from there? maybe try switching the mainboard and kneckboard and see what happens?!??

If you have any other pcbs, try hooking it up and see if there's any graphical issues then.