Cracked EPROM on KOF2003 board?

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Dilandau

n00b
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Dec 3, 2009
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Is there any way to replace one of the eproms on a KOF2003 board, not the MVS cart. The eprom at P3 got cracked, so is it replaceable or has the board become trash?
 
channelmaniac

channelmaniac

Mr Neo Fix-it
15 Year Member
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You should be able to replace it with one programmed with the code out on the MAME archives.
 
channelmaniac

channelmaniac

Mr Neo Fix-it
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I have some on the way, but don't have 'em yet.

Which chip is it?

Also, are you sure it's 8Mb? The MAME dumps for the PC Board version show up as 16.
 
D

Dilandau

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Dec 3, 2009
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There are three EPROMs one the board:

M27C4001-10F1 marked M1
one the sticker is covering the chip but looks similar to the broken one, marked SPJ
M27C800-100FI marked P3

 
channelmaniac

channelmaniac

Mr Neo Fix-it
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hmmm... actually I can't do math... they are 128Mb chips.

OK, the P3 is an 8Mb chip and I'm downloading the ROM set for it now. Did you need the chip replaced or can you do it without damaging the board?

RJ
 
D

Dilandau

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Dec 3, 2009
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I should be able to do it without any problems, makes me wish I had gone for that desoldering station though.
 
R

RetroHacker

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Dec 21, 2009
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When replacing the broken chip, to make your life easier, cut all the pins off the cracked chip first. Then desolder and remove one pin at a time. Much less likely to damage the through plating that way. And once you get it out, you can even install a socket.

-Ian
 
werejag

werejag

Galford's Poppy Trainer
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May 3, 2005
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2,626
no pics of the board now?

kind of a before and after shot
 
channelmaniac

channelmaniac

Mr Neo Fix-it
15 Year Member
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Nov 29, 2005
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Would you mind if I put those pics up on my site?

I'm going to be doing an "image gallery" for not only repairs we do, but for projects that customers use our parts for.

RJ
 
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