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Daytona USA Project

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isamu:
$350 for a pair is an outrageously good deal. Grats!  :applaud:

Le Chuck:
Was able to spend a few hours trouble shooting tonight... after working on my drifting for about half an hour ;)

Okay, so I've made some good progress towards figuring out what is wrong.  Disclaimer:  If I would rip the cabs all the way down and just work the boards I'd probably have this done right now but I'm trying not to pull everything out if I can avoid it and it doesn't look like I can.  Also - I broke my multimeter several weeks ago and haven't replaced it yet.  Heh. 

Unit one functions normally. 
Unit 2 gets power to speakers and monitor. 
Unit 2 gets no power past the power supply.  According to guy I bought it from boards from unit 2 work in unit 1. 
I assume he's a straight shooter. 

I separate the wiring harness that is linking unit 2 to unit 1 and wire a power cord to unit 2. 

I notice that unit 2's power supply doesn't seem to be getting power at all.  Same behavior as when I first plugged it in.
Check bank of fuses between powersupply and transformer - none popped.
Take unit 1's power supply and wire into unit 2.  No dice, power supply won't stay on longer than a second and I begin to smell that magic smoke we all fear.  Kill power. 
Put U1 powersupply back in U1.  Still works.  Yay. 
Put U2 powersupply in U1.  That works.  Yay.

At this point logic seems to tell me that:
1) I need to replace that multi-meter before going further
2) Something is clearly amiss.

Went back out and ran separate wall power directly to the power supply, it is still tripping and none of the boards show power at all, it trips right away.  Tomorrow I'll pull the boards and see what's going on.  I thought it was between the power supply and the wall but I must have overlooked something.  It would be better if I knew what I was doing but I'm very unfamiliar with this machine and oh my there sure are a lot of boards in there ::)

SailorSat:
If I remember correctly there is one large transformer in there which gets fed from unit 1, from that transformer one 110V line runs to the nanao monitor, another 110V line goes to some standard AC/DC Power Supply, which feeds the 12V, 5V etc. lines the game boards use.

I suspect the line going from the transformer to the power supply is broken/shorted somewhere

BadMouth:
Sounds like there is a short in U2 (somewhere other than the boards).
If the boards work when swapped, the good part is that both the power supply and boards are good in both units.  :applaud:

Not sure if relevant, but the force feedback motor in those is also 110v.
Maybe yank all the fuses and test each circuit one by one.

Le Chuck:
So I'm down to 1 Daytona USA, put the best parts of the two together and moved the other unit via craiglist and recouped much of my original investment so yeah, basically a cab for free.  Just didn't have room for both.  Now, I've been looking at upgrade kits, and I think I'm going to order the Daytona GTX kit, I found a dealer in Australia that can do $70 shipped, that's a sight better than the $500 it went for in 2004 lol, anyway, anybody ever played Daytona GTX, I haven't but it sounds like it adds a lot of features that could be fun and add to the replay. 

Also, I'm still doing searches to see how to reskin the cars, I know its possible in PC but surely there must be some way to do it on the boards.  I want a Ricky Bobby car!

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