VS. Dr Mario help

Evil Reny

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Donor 2011, 2013
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I picked up this vs.unisystem with Dr.Mario recently when I powered it up I get nothing no picture no game sounds.
I swapped the pcb with another and it works fine so I tried the Dr Mario daughter card in my working pcb and still nothing.

Now what??
 
Is the monitor showing just one color. Like all green or all pruple or white? All daughter cards are a real bitch to get all the way into the sockets. Also you might try the good cpu and ppu from your other board.
 
Sounds like a bad CPU. Take a good CPU from one of your other VS PCBs and plug it into your Dr. Mario daughter board. Try that and see if it works.
 
Is the monitor showing just one color. Like all green or all pruple or white? All daughter cards are a real bitch to get all the way into the sockets. Also you might try the good cpu and ppu from your other board.

The monitor shows nothing just a blank dark screen i metered every pin on the daughter card to see if it was making contact.

I'll try another cpu
 
bad ppu usually shows a solid color on the screen. Make sure the card is installed the proper direction.
 
That's most likely because you have the wrong PPU on for the game. Take the Golf PPU off and put back on your Dr. Mario one. You should be good to go after that.
 
Ok, process of elimination continuing...

Guess the next step would be taking off the daughter card (sorry, I know it's a PITA) and plugging it into the other board that you know works. If it still doesn't work then try a CPU switchout. If it still doesn't work then you know it's the daughter card or ROM itself which bad.

I went through a bunch of troubleshooting with my VS system. Had one person suggest getting a 40-pin machine pin sockets to put in between the PCB and daughter card for a better connection. I never got to that point but maybe some of the advice in that thread can help.

Here's the link: http://forums.arcade-museum.com/showthread.php?t=149993&highlight=red+tent
 
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