Operation Wolf

yugffuts

yugffuts

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Hey guys...

I got an operation wolf that wasn't doing
anything. I replaced a fuse, and now it turns on (I can hear a hum) but I get no video or sound. I am not sure if it attract audio is on, but nothing happens when i put in coins and hit start.

What should I try to get this working again? I'm thinking since there is no video or sound, it is board related (although I guess it could be the power supply). How should I go about testing this?

I'm relatively new to fixing stuff, so throw whatever you've got my way. I just got amultimeter, so if I need to, I can use that, but i'm not too confident with it yet.

Thanks.
 
I was going through a simular situation a few weeks back.

I would start with the powersupply. Hook up a multimeter and see if each power output is correct. Then follow the power from the power supply to the pcb and monitor.

This will help you figure out the start of the problem .
 
Sounds like a good place to start.

So, I should be able to hook the multimeter up to the power supply while the game is running, and check the voltage? What setting do I use (I told you I just got this thing
smile.gif
)

Thanks.
 
While all of the voltages generated by the power supply are important, the most important one is the +5V. Without that, the game board(s) will not run at all. Start by placing the black meter probe on the ground terminal of the power supply and the red probe on the +5V terminal. You should get a reading between +4.85V and +5.15V. Anywhere in this range is generally acceptable but if your power supply has an adjustment knob, you should get the reading as close to 5.0V as possible. If this is correct, you can then check the other voltages made by the power supply. I am not familiar with Op Wolf but the most common voltages used in games are +5V, +12V and -5V. If none of these terminals give you a reading, put your meter on AC and check the AC input to the power supply. Depending on what type of supply is used, you may see various readings but there should be some AC voltage present. I believe that Op Wolf uses a normal switch mode power supply. If that is the case, you should see 110V AC on the input to it.

From what you have told us, the most likely problem is the power supply. Since there is no video and also no game sounds, it is likely that the power supply is not working.
 
Well, I switched out the powersupply, and now I have Sound!!

Still no video though, and when I insert a coin, nothing happens. It seems like it starts up with the sound, but then I have no inputs??

Also, when I turn it off, I see the screen flash bright for a split second and then fade to the white dot...any suggestions?

Thanks again.
 
Check to make sure that the video wires from the OP Wolf board are indeed connected to the video input of the monitor. It appears as though both your OP Wolf board and the monitor are running. A monitor flashing brightly upon power off is usually a sign that it has been running with no video input.
 
I looked at the video inputs, and they looked plugged in to me. I did a trace on them, and made sure everything was in the right place, but still no video.

I don't know if it matters, but operation wolf uses a power auxiliary board and something called the FCC board. Basically, the video feed from the game board goes into the FCC board, and then it goes out to the monitor. Is there any way to test is this FCC board is operating properly?

Thanks again
 
Is the FCC board something that can be removed and you still be able to plug the video output onto the main board? Often times boards like that just have simple RF filters to keep the board set from interfering with things like TV and radio broadcasts. Usually, they are not essential to the operation of the boardset. Would it be possible for you to take a couple of pics of the boardset and one specifically of the FCC board?
 
I'd rather not, like I said. I finally made some progress on it, I don't want to screw it all up now
smile.gif


Is it a possibility that the monitor is just shot? If that's a possibility, how can I test it?
 
All you really need in order to test the monitor is a RGB video signal. If you have another standard resolution raster game, you can back it up to the back of your Op Wolf. Unplug the video connector from the monitor of your other game and connect it to the monitor in the OP Wolf. Fire up both games and watch the screen on the OP Wolf. That will give you a pretty good idea of what is going on with the OP Wolf monitor. However, if you don't have another game, forget everything that I just said
grin.gif
 
Sounds like a plan...I can hook my rush'n attack up...i'll let you know how it turns out

Thanks a lot.

***edit***

My rush'n attack connector to the monitor panel isn't the sane as operations wolf's I'd have to use a different adapter, and i want to be sure that i do it right. Its going to have to wait for another day.
 
That looks like a filter board - make sure you have continuity through the filters. (And check for cold solder joins).
 
You guys are the best. I checked the continuity of the filter board, and I noticed something very odd. The schematic in the manual says the FCC board ground is pin 29, however, my multimeter tells me it is in pin 30. I made the switch, and BAM, up comes Operation Wolf!

The monitor takes a long time to warm up (30 seconds or so), which prolly points to a cap kit (yes/no?), but there is burn in, anyway, so i'm not too concerned about that for now. The more pressing issue is the gun isn't calibrated. It does fire, and is detected in the test mode, but when i shoot i do not see the bullet marks on the screen, so I have no idea where it is shooting. How do I calibrate this thing?

Thanks again.
 
Aren't those "bullet shots" an option? I could swear I have seen it both ways when I played them "in the wild".
 
If they are, they aren't listed in the dipswitch's in the manual, and I am a terrible shot, since I can't hit a group of 10 soldiers with a grenade...

To clarify an earlier statement, the triggers/start button/grenade button register in test mode, but I can't get "Tilt" to do anything. I am assuming this is the tilt of the gun, which would indicate the mechanism that tells the gun where it is pointing isn't working. Unless thats "tilt" like pinball, which wouldn't make any sense...
 
Try some of the knobs by the monitor (not the colour knobs to adjust yellow/blue/red, but the ones hidden on the side-tampering with these knobs helped me calibrate my Operation Wolf's gun).
 
Here's a crappy picture of the monitor knobs.

http://www.home.earthlink.net/~cariello/maddog/mon-knobs.jpg

The ones on the stem (group 3) are labled RGB, so its not
them.

The ones in the back (group 2) are labeled V hold, etc, so i'm thinking its not them

The 2 in the odd location (group 1) have no notation at all...is that what you are referring to?

Thanks.
 
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