Need some advise on a possible purchase.

[Masco73]

Hello,
I recently found an operation wolf machine that is for sale locally. The machine is fully functional with only one problem. The owner claims that on 1/3 of the screen the bullets do not register, but on the rest it functions normally. He said he replace the gun, but it did not fix the problem.

I do not know anything about repair, has anybody heard of this problem before or possibly a way to correct it.? I would be willing to give it a shot if it is semi simple or should I just forget it. I figure I could get it for $200 or less.

Any advise would be appreciated. Thanks!!!

[Clownzilla]

Just make sure to kill the enemy before he gets to the 1/3 part of the screen that doesn't work.

[shawnbo42]

Check the screen, is it darker on one side? Sometimes an older monitor (depending on which model is in there) could have some bad compnents causing one side of the screen to go darker. If that is the case, then the gun probably would not register the shots on that side of the screen. In my experience, either a gun works, or it doesn't. So if it works on half the screen, then I would say (without being there in front of it) that your problem is either in the monitor or the power supply area, but I would go with the monitor first. Ask if the guy is willing to swap the monitor out with a different one, and see if that corrects the problem before you buy it. Otherwise, without a lot of technical experience, you could be getting into (for you) a virtual nightmare. Hope this helps a little.

[Imstarryeyed]

It looks like you may need to give your monitor a Cap kit.. (replacing all of the capacitors on your monitor chasis). In addition I would also look at the flyback on your monitor chasis (the motherboard for your monitor) as well.

A word of warning, please, please, please, get someone who is qualified to help you discharge your monitor before you do ANY work back there! A charged monitor (even when the power is unplugged) can be a dangerous/fatal mistake! If you are in doubt, the please do not work on it and get someone to look at those for you!

It is a fact that capacitors WILL go out eventually and old arcade machines are notorious for having problematic ones.

An informal way (meaning NOT 100% sure thing) of checking your caps is to just look at them (they are cylinder shapes "cans" that stand up on mother boards with a silver top) if the caps look "puffy" or the top is not flat but kinda buldging its a good sign it MAY need to be replaced.

Caps hold charges so please don't place or put any tools or fingers on them to check them, just be careful here!

A good eyeball is your best friend here...

If you don't feel comfortable about doing any of these things please just ask a qualified person to take a look at those items for you, I just want you to be safe!

I have heard from a number of people get "popped" from monitors by accident and it is never a pleasant experience, DON'T BE ONE OF THEM!