Wow, that's a nasty one. MVS or AES? I assume it's original, right?
That arc forms when Elvis leaves the building.. Crack the case open and check what it looks like inside. Probably a chip that shorted out or something. Please post pics if you can, as it would be interesting to see.
Shorted ROM or capacitor causing WAY too much current to be pulled.
If that happened in your board check the slots because they will be damaged too... and if it was one of the MVS boards that has the right angle connection to the main board then those connectors may be toast as well.
That's cooked bad enough that you'll need a donor board to repair that cart. Pull the good ROMs and put it on the donor board then burn an EPROM to replace the bad chip. Or, swap all the ROMs and toss the bad board with the shorted cap away.
RJ
I talked to the original owner yesterday who says there is no damage to his MVS

Hard to believe![]()
Agreed. The contacts on the slot would at least be horribly discolored from the heat and probably burnt just as bad.
I can take pic of mine - not a mark anywhere.
My 6-slot board currently has a big burn mark around one of the +5 JAAMA connector: had to bypass it into the other +5's to keep it running.
That is common on the MVH6 as they draw a fair bit of current from the edge connect, the 5 volt connections get hot and toasty.
I used some solderwick to fix my 6 stots.
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EEEEK!
Copper tape! Copper tape!
http://www.abra-electronics.com/products/product.php?productid=2490&cat=206&page=1

EEEEK!
Copper tape! Copper tape!
http://www.abra-electronics.com/products/product.php?productid=2490&cat=206&page=1
Wow! Never seen that, Anyone know where I can get this from in the UK??
That is common on the MVH6 as they draw a fair bit of current from the edge connect, the 5 volt connections get hot and toasty.
I used some solderwick to fix my 6 stots.
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One would think but until I fix my particular board burn, I'm only using 2 and have the other +5 wiring tied into those. Not a good situation but it keeps the game running and the tokess flowing into it.Is this common even when using all 4 +5v points? Would it be better to make 2 more +5v entry points to disperse it better?
Is this common even when using all 4 +5v points? Would it be better to make 2 more +5v entry points to disperse it better?
