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I've pulled every ram chip and tested them on a tester. The game originally came up with a 1-3-8 which was actually bad and after I replaced it then got the 1-3-1. I tested all of the following 74153's 7474's and the logic chips 7486,7408,7410,7404 I didn't test the shift registers yet. I...

I've got a K7500 that works 98% of the time and randomly goes into shutdown. When it does I power cycle it and it comes right back on. I've read all the posts I can find. Replaced the shutdown adjustment pot. Replaced the zener in the shutdown circuit. Tested components. I've had enough and I...

I’ve switched guns and both guns work in position 2. Neither trigger works in position 1, but the gun tracking does work. Trying to troubleshoot it but I can’t find a schematic. It’s non-dedicated jamma board. Any help would be appreciated.

A guy bought a game from me, target terror gold. It's worked fine for a couple of months and he says it doesn't power on now. I walked him through checking the fuse but he doesn't feel comfortable doing much more than that. If anyone knows anyone please pm me and I'll forward his email. Thanks

I'm working on a 20ez that B+ was low and couldn't be adjusted. Replaced the voltage regulator and current limiter and am getting a good B+. Now the HOT smoked, literally smoke coming out. It was new and I tried the old one. Smoke on it also. Any ideas where to look for this issue?

For an Escape. Need two if anyone has any. TIA

Just finished this today. A fun side project that will actually end up in a few local arcades. A brand new custom cabinet. Custom art. Stereo sound. This is the first one that’s going in my collection. The game was designed and written by three guys who are professional game developers, me being...

I have two, possibly related, sound issues. First - when the game first boots up I hear a jump sounds but it never ends. It's like the very last bit it just constantly repeating: Second - the in-game sounds work fine on the first two boards. If I die on the third board the death sound doesn't...

I need to print custom decals and want to buy good vinyl. Any suggestions?

Price dropped 12.28.23 Omega Race and Target Terror - Both in excellent working condition with great monitors. Omega Race monitor was recently rebuilt and rejuvinated. The picture is crisp and bright. Cabinet is in good condition. Target Terror was recently serviced and the guns work perfectly...

Moved from general tech I wanted to setup a Jamma test rig and bought the vector labs product. I have a Visionpro LCD that I don't like and use as a test monitor. I wired up the monitor connection according to the board pinout. tied the sync line to V and H/C. The visionpro won't sync. Hooked...

I wanted to setup a Jamma test rig and bought the vector labs product. I have a Visionpro LCD that I don't like and use as a test monitor. I wired up the monitor connection according to the board pinout. tied the sync line to V and H/C. The visionpro won't sync. Hooked up my TPG to the visionpro...

Did you like Bezerk or Frenzy? This is it's spiritual child. It's completely free to play. No ads. Just our take on a maze shooter. There are a ton of levels and a pretty tough boss at the end. It's available on webgl and a downloadable windows client. It will also make an appearance as a real...

I’ve googled for these and only Chinese sources seem to have availability, if they’re real. Does anyone know of a source that might have these? Thanks

I've got a Mazer Blazer that, according to the diagnostic LED on the board, has a bad video chip. I can't find a reference to this chip anywhere. Anyone know of a source for the chip or a boardset? TIA

I have a 4951 that has a sync issue. Since the caps were original I decided to start there. After I installed the cap kit im getting vertical collapse, the vertical was fine before the cap kit. There is still about 1" of vertical picture but thats all. I've double verified I installed the...

Monitor went dead. Here's what I've done and checked: 1) One of the inrush resistors was open on the deflection board (9ohm sand resistor) jumpered it per suggestions here. 2) I checked the x,y,z signals coming out of the game board (omega race) I can see the game on my scope. 3) Checked all...

I've looked all over for these and can't find them. Anyone know of a source? I may have to go chassis mount and rig something...

I have two MCR2 boardsets fully working/refurbished. The board interconnects and cables are new and reliable. The interface headers have been replaced. The power electrolytics have been replaced. These boards are fully working. They come with ROMs for Kickman. $500 each plus shipping or make me...