Mk1 help!!!!!

theforce19

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Hi, everybody

So I have a mk1 that's been mame'd (don't worry everything is still original). It's wired to a j-pac. So pretty much I turn on the pc, the j-pac turns on everything works except my monitor. It's a WgK7000(actually 7197) I checked the cable that gives the monitor power it read 0 , so I traced it back to the transformer. I checked all the wiring, and the fuses on the transformer everything looked good. But when I turned it on again I still wasn't getting any power from the cables to the monitor. Also when I turn on the machine, you can usually hear the transformer turn on, but I heard nothing.. I also have no idea if the monitor works or not since it doesn't power on. So is it something with the transformer? or the Monitor??

Thanks
 
Under more close inspection I found that one of the fuses on the transfomer is the wrong one. There is even a sticker that says to use 3amp 250v fuses, but the one I found was 1amp 250v. Could this be the problem and also where do I buy replacement fuses?
 
Ahh I fixed the problem by myself and now the monitor is working!!! I was right somebody put the wrong fuse in the transformer. So it didn't get any power, so I switched the fuses and now the monitor works!
 
Lol thanks for the help Sackashiet , I couldn't of done it without you. Almost forgot, when I started it up the top left corner of the monitor was black?? Any ideas?
 
Nothing like that. Mine still shows everything perfectly excepet the top left corner which is blacked out. I was thinking it might need de-gaussing but I was told that the k7000 already has an auto-degausser. Maybe needs a capkit or a flyback.
 
One more question would it matter if I put a 3A 250V fuse in a 3A 125V socket??? Since 3A 125V fuses are hard to find but I can easily find 3A 250V. Would it short out??

Thanks
 
the voltage should be fine. I generally see 250V fuses in a lot of the games I've worked on. it's the amperage that matters. putting a higher rated amp fuse in could result in fires in worst cases, and lower rated amp fuses will just constnatly blow. it needs to be like the baby bear's porridge: just right. ;)

you'll only run into a problem with voltage if you like uh... fed it 240V instead of 120V.

as for the degauss, there are instances the degauss coil doesn't/can't get the job done. that's what degauss tools are for.
 
I think I got more confused Mecha187 you said that the voltage should be fine. But then you say feding 240V instead of 120V is bad. So is feeding 250V instead of 125V fine?? Sorry i'm a stupid person and need re-explainations.
 
LOL

gotta start somewhere. I refer of course to the voltage coming out of your wall outlet, which will be 120VAC. if you use a 250VAC fuse, you'll be fine.

you're going to monumentally fuck shit up no matter what the fuse is if you're pushing 240VAC into your game I would think. :)

case in point: your 250VAC fuse is fine for this application. like I said, it's the amperage that has to match up exactly. I've found, considering I deal with a lot of games from the used market, that other techs put the wrong fuses in games. I had a Colorama where the fuse for the motor that spins the wheel in it would constantly blow every couple weeks or so. there was a 1 amp fuse in there, so I thought that was the replacement. I think it wound up being either a 3 or 5 amp fuse, I called Bromley about it to confirm. since then, we're good. (knock on wood)

I guess what I'm saying is in this hobby, you should always research that you're putting the correct parts in, cause you never know what hackjob has done to it previously.

I can tell you a few other things if you really need to know stuff. I've gotten games that were in total shambles and made them magically work.
 
Thanks for info and the clarification!! Alrighty I'm heading to, the source(Canadian Radioshack now) for some fuses

Thanks again guys!

Once I get the fuses installed, If the monitor is still messed up, I will post pics on here

Thanks
 
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