Midway Power Supply 90412

David P

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Turlock, California
I have a TRON game with a 90412 power supply. It's board number is a A082-90412-D000

I've seen A000 thru D000, so I am uncertain what the differences are between them.

What has happened is that the PS must have had a partial failure before I bought the game. One of the previous owners cut multiple 5v and 12v lines off the wiring harness (HACKS!), very close to the molex connectors. I am now in the process of reconnecting and rebuilding the power supply (and putting a lithium battery on it, via Bob Roberts).

Ok so my question

Next to the fuse there is a connction marked JW4. There is a wire that COULD connect both sides of the connection. The wire looks to have been cut. I do not know if that was done purposely or if it was never truly connected. I cannot get a close enough look at a pic of another D000 version of the board to see that connection.

Any help here before I rebuild it and blow my game to kingdom come? LOL

Thanks,

David
 
ok, looking at my two 90412's, neither has anything connecting the two points of jw4 together. so that should stay as is.
 
Hotdog! Thanks much Clev.

Now to order the parts and repair the harness.

If the game still has that god-awful BUZZZ, or I can't seem to figure out how to measure the 5 and 12v lines, I'll be back here.

Thanks again,

David
 
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