need an expert opinion(it's the X-Men sound issue and yes I know)

darkcat1

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need an expert opinion(it's the X-Men sound issue and yes I know)

I bought a slightly broken four player X-men conversion as my first machine and I'm trying to fix it to play Beat'em Ups(sorry that's what I want rather than wiring it back to gauntlet...yell at me now if you wish). My friend with a two player machine tested the board and got no sound out of it...he also couldn't get the one player working.

Upon getting around to visually inspecting the board I found some rust around the test mode switch and some corrosion(like an old battery) on one side of the sound chip. The capacitors did look good to me and I'm a PC repair guy(so I should know my way around a motherboard). They also were not bulging or leaking but the black plastic around them was flaking off like mad.(also the sound did work breifly before I bought it)

I'm thinking I'm screwed or at least this is not something a PC parts changer like me can fix so now to the questions:

1. I do think I'm out of luck but I have to ask: does this sound fixable?
2. If so who might I go to? I don't know of anyone who would attempt a repair on this board(I think I site I saw said you could try recapping them)
 
there is a thread on this, the caps on the little board need to be replaced (its under the black stuff thats flaking off).

but you want to address the player 1 controls issue, there could be a bad resister network or ic chip.
 
If the caps on the sound IC are so bad they've leaked onto the main board, holy crap, I didn't think they had enough electrolyte to actually do that...

...so I think your corrosion is coming from somewhere else. Pictures pictures pictures! What does it look like? How does the sound IC look?
 
The capacitors did look good to me and I'm a PC repair guy(so I should know my way around a motherboard). They also were not bulging or leaking but the black plastic around them was flaking off like mad.

Bulging and leaking caps is predominantly a modern problem, on arcade gear the bad caps look indentical to the good caps, you cant tell by eye if the ESR is through the roof.
 
yes I know I read alot before and after posting this(even found the guy who will recap it for $150). I just wanted an opinion of someone more expert than me if this looked fixable at all. I took pictures of the side with the corrosion(I've tried cleaning it with canned air but haven't hooked it back up to anything) and even though it looks abit like a recapped on from the other thread there are still flecks of black on the tops which makes me suspect that it's original rather than fixed(before). Also note that I haven't tried the external audio but when I read about this issue and saw this side of the chip it worried me to death.(look at those contacts...)



Also for a few more pictures:
http://s1142.photobucket.com/albums/n604/darkcat12/

also I'm nowhere near good enough to try recapping it myself...
 
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