Neogeo MVS monitor sparking when plugged in

[rhorne]

Hello guys. New to this forum and I'm hoping someone can help offer me some advice.

I've just bought a Neogeo MVS arcade machine. It appears to contain a 19" monitor and the sticker on the inside says Wells-Gardner Model No. 19K7689.

I know nothing about the history of this machine.

When I plug it in I hear a constant sparking and there's clicking out the back. The video below shows what happens.

There's a sparking between a transistor and the black box that contains two monitor control dials. Where do I even begin diagnosing the problem?

https://www.youtube.com/watch?v=LxEtwqLfOQs&feature=youtu.be

[yotsuya]

Flyback is going. Based on this email, send it off to arcadecup.com for repairs. Do not try it on your own.

[rhorne]

Not sure how feasible that is when I'm based in the UK. Bugger.

[yotsuya]

Not sure how feasible that is when I'm based in the UK. Bugger.

Hmmm........... anyone know who does monitor chassis repair in the UK?

You COULD attempt it yourself, based on your level of comfort with electronics and soldering.

[Malenko]

its not that expensive to ship a chassis, you dont have to send the whole monitor.

[rhorne]

I'm reasonably comfortable with electronics and soldering and indeed I'd like to have a go at it myself, I'm just not even sure where to begin in terms of identifying the faulty component.

[pbj]

This will end well.

[grantspain]

i do chassis repairs in u.k
but tbh its only the flyback that needs replacing,pretty easy job as long as you can solder/desolder to a good level

HR7717 is the part you need-that is the hrdeimens replacment part that was commonly available in europe

a few places sell them still in u.k but if you get stuck i could sell you one from my stock

with the new hr7717 you need to move one electrolytic cap as it prevents the new flyback sitting correctly-you can either mount the cap on the solder side or replace it with a new cap with legs "dog leg"

[rhorne]

This will end well.

Well this is why I was trying to determine the complexity of such a repair. Thanks for the support.

[Malenko]

I can vouch for grantspain , been here forever and knows his stuff.

[lilshawn]

I can vouch for PBJ, He's seen some sh...stuff.

High voltage ain't nothin' to f- with, it WILL mess you up in a bad way if you don't know what you are doing.

Replacing a flyback isn't really a big deal as long as you can solder good. as long as you observe safety precautions you will be fine. google up some youtube videos on "flyback replacement" and then decide if it's something you'd like to tackle.