Hydro Thunder K7500 problems

turbo20lbs

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I don't even know how to describe the problem, so I took a video.

This is a 25" Hydro Thunder with K7500 chassis, the tube looks to be Phillips. All original from Midway from what I can see.

It acts up quite a bit around 30 seconds into the video.

I am just wondering if a Cap kit would possibly take care of this type of thing or not.

Thanks.

http://www.youtube.com/watch?v=ecKXRvV28dE
 
Maybe. Probably need to look it over for cold solder. Open the back and watch the chassis in a dark room while it's doing that to see if you see any sparking going on...
 
Thanks, tried this in complete darkness, even removed the florescent light. I didn't see anything, but you can "hear" stuff going on when it acts up the most. Sounds like it's just noise coming from the neck of the tube when it's acting up.

I have a CAP kit on order, so when I have the chassis out I will do that and get a better look at it I guess.
 
say goodbye to that tube.....I don't believe a cap kit can repair that chassis. If the flyback isn't bad....I gotta think the tube is going bad, sorry, I hope I'm wrong for your sake.
 
say goodbye to that tube.....I don't believe a cap kit can repair that chassis. If the flyback isn't bad....I gotta think the tube is going bad, sorry, I hope I'm wrong for your sake.

I doubt it. If the tube was cracked, you wouldn't get any pic at all.

I just wanted to make sure there was no arcing going on during that mess up.

Pull the chassis and look for bad solder, burnt parts, etc. Recap it if you haven't. Inspect the flyback...
 
I would really suggest taking Modessitt's advice. It really looks like something that is caused because of a short between a few components. Like he said "arcing," but it's probably too small to see and on the under side of the chassis. Hence "cold solder joints" possibly being the issue. Also wouldn't rule out faulty caps, game was released in 1999, possibly 10 years old now and all so I would think that's reasonable for caps to start failing.........

Besides just looking over solder joints and reflowing, take a look at some of the larger caps on the board to see if there are any signs of bursting or leaking. Don't get the glue confused with leaking though, a lot of the large caps are glued to the board to hold them in place.
 
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