having trouble with super mario brothers vs to jamma harness?

needhelp

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having trouble with super mario brothers vs to jamma harness?

I was wondering if somebody could help me on this...I got a vs to jamma harness from mikes arcade..wanted to play on a jamma cabinet...I thought these were plug in play but I guess not..I can't get it to work..I have a bad dudes jamma cabinet..thought it would work in it..when I hook it up all I get is a grey screen..no video or no sound...if anybody has one of these harnesses could you help me get mine to work...


thanks,
need help
 
when I hook it up all I get is a grey screen..

In my experiences with Vs PCBs colored screens (grey, white, blue, purple) have meant that chips needed cleaning/reseating, or their sockets were bad. Every single time fixing those issues cleared up the problem. Obviously YMMV.
 
In my experiences with Vs PCBs colored screens (grey, white, blue, purple) have meant that chips needed cleaning/reseating, or their sockets were bad. Every single time fixing those issues cleared up the problem. Obviously YMMV.

Are you certain that your SMB board is working?

Do you know if the Vs. PCB actually works?


I presumed it worked..I bought it as a working board...I have a unisystem smb board I think...is it suppose to nly have 1 or 2 boards to make it work...usually they are stacked boards, but not sure if this one was a stacked board...can somebody tell me how to clean off the chips and and how to replace sockets..is it an easy job or not...what do i need...


thanks,
need help
 
In my experiences with Vs PCBs colored screens (grey, white, blue, purple) have meant that chips needed cleaning/reseating, or their sockets were bad. Every single time fixing those issues cleared up the problem. Obviously YMMV.

You offered technical help - I am speechless.
Today hell indeed froze over

@needhelp
You remove the chips and you clean the legs with isopropolyne alcohol, or a pencil eraser, dremmel with small wire wheel.

To remove carefully pry on each end - there's not anything else anyone can tell you
 
@needhelp
You remove the chips and you clean the legs with isopropolyne alcohol, or a pencil eraser, dremmel with small wire wheel.

To remove carefully pry on each end - there's not anything else anyone can tell you

I clean the legs with fine sand paper. I'm certain I would break the legs with any of those methods :p
 
I clean the legs with fine sand paper. I'm certain I would break the legs with any of those methods :p

not to ask a stupid question again..but whichs chips are you talking about...I'm guessing the rom chips that are marked SMB right...and what is a good tool to pull the chips off..

thanks,
need help
 
not to ask a stupid question again..but whichs chips are you talking about...I'm guessing the rom chips that are marked SMB right...and what is a good tool to pull the chips off..

thanks,
need help

Yes, the 6 SMB Roms. Cleaning the CPU and PPU doesn't hurt either.
 
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