Mvs Metal slug 3 error

mark6974

n00b
Joined
Jul 31, 2014
Posts
7
Hi Folks
I"ve a cart MS3 that have a z80 error message when Power on
Motherboard works fine with another MS3 and other game.
I think the problem Is on a chafio board

Any ideas ?
Thanks
Marco
 

HeavyMachineGoob

My poontang misses Lenn Yang's wang
10 Year Member
Joined
Apr 3, 2011
Posts
5,816
Could be a bad M1 ROM on the CHAFIO board, the M1 ROM contains Z80 instruction code.
 

Atro

Who?,
20 Year Member
Joined
Jan 30, 2002
Posts
9,209
No works , the z80 error has the upper hand for the moment
Other ideas ?

How's your current voltage?

For as bizarre as it may look, I got that error on my MS3... on the AES!

Swapped the PSU and it never poped up again.
 

mark6974

n00b
Joined
Jul 31, 2014
Posts
7
How's your current voltage?

For as bizarre as it may look, I got that error on my MS3... on the AES!

Swapped the PSU and it never poped up again.

The voltage is normal 5V to 5.10 max, and if I swap with another MS3 works fine , the problem is on the cart and precisely on CHAFIO board
 
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