MVS Cart PCB Burning

PCB problems and fixes
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Stox58
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MVS Cart PCB Burning

Post by Stox58 » July 21st, 2018, 1:20 pm

Hi,

Anyone come across anything like this before?.
It’s board one from Metal Slug 3 and the cart seems to work ok at the moment.
I’ve only just brought the cart and I’m not sure to either return it or just ask for a discount.

Thanks from Luke
Attachments
MS3 board one burning
MS3 board one burning

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nem
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Re: MVS Cart PCB Burning

Post by nem » July 21st, 2018, 2:57 pm

Looks like the NEO-CMC chip on the bottom board caught fire. I'm going to guess the complete CHAFIO board must have been replaced, because the chip has a million pins and would be an absolute pain to solder in. Look for anything odd about the board just to be sure.

Honestly, if it works, I wouldn't worry about it.

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thegreathopper
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Re: MVS Cart PCB Burning

Post by thegreathopper » July 21st, 2018, 3:10 pm

I would wipe the burn mark off though.

Stox58
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Re: MVS Cart PCB Burning

Post by Stox58 » July 23rd, 2018, 9:25 am

The Chafio board looks all ok, so you think someone has made a working cart from two broken ones. The only other thing that I’ve noticed is that the plastic rectangle what the pcbs slide into has also been replaced.
What should I use to remove the burn marks ?

Thanks from Luke

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Spectrexcwk
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Re: MVS Cart PCB Burning

Post by Spectrexcwk » July 23rd, 2018, 7:37 pm

Spectrexcwk wrote:
nem wrote:Looks like the NEO-CMC chip on the bottom board caught fire. I'm going to guess the complete CHAFIO board must have been replaced, because the chip has a million pins and would be an absolute pain to solder in. Look for anything odd about the board just to be sure.

Honestly, if it works, I wouldn't worry about it.
How would that even occur? Too much voltage?
Stox58 wrote:The Chafio board looks all ok, so you think someone has made a working cart from two broken ones. The only other thing that I’ve noticed is that the plastic rectangle what the pcbs slide into has also been replaced.
What should I use to remove the burn marks ?

Thanks from Luke
Pencil eraser block? Alcohol? Anecdotally i've used Simple Green household cleaner on my pcb's .

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