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Question from Andrew: I have an Operation Wolf 3, game was working great until monitor went out. I had it repaired and the machine sat for a while. I got monitor repaired, plug her in, and everything works except the guns. All the buttons work, grenade, trigger and vibrates. What does not work is the crosshairs and this goes for both the guns. I go to the calibration screen and get nothing. I calibrated many times before and the X,Y numbers changed. The numbers now do not change and remain at 0,0. What are your troubleshooting methods with this fixed gun game? I have a few years experience with arcade repair but have not done anything with fixed guns. Thank you, Andrew
Response from Jonathan: Andrew,
It sounds like something is either wrong with the connection between the guns and your Operation Wolf 3 board or with the guns themselves. It’s always best to start with the wiring to make sure everything is connected properly. It’s a good idea to use your multimeter continuity check setting to verify the wire connections as you can’t always tell if something is making a good connection just by looking at it. Once you are satisfied that the guns are making a good connection to the board, it’s time to take a look at the guns themselves. Unlike standard optical guns which are more common, Operation Wolf 3 uses potentiometer based guns to identify the location you are pointing at on the screen. You will need to test these potentiometers to make sure that they are registering the correct values. The manual for the game should help you find these potentiometers so you can test them. We also have a video on Checking Potentiometers With A Multimeter that should help you out as well. This should give you a good place to start your repair. Please let us know if you have any additional questions about your issue and we’ll try to help you out further.
Hope that helps. Thank you for your question and good luck with your repair.
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