Sengoku 3 with glitchy graphics

smokey

Krauser's Henchman
20 Year Member
Joined
Mar 14, 2001
Posts
942
I just got a SENGOKU 3 cart with very glitchy graphics. Contacts are pretty clean and I'm going to check the traces on the contact pins. but any ideas on what might cause this ?
Or just a general direction for what I must search?
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BIG BEAR

SHOCKbox Developer,
20 Year Member
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Posts
7,743
Unfortunately it looks like one or two of the c roms has been compromised.
BB
 

BIG BEAR

SHOCKbox Developer,
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The only repair I know of would be some smt chips equivalent to the 8 meg size of each C rom on a dip adapter..or you find another faulty copy with a good C roms.
BB
 

smokey

Krauser's Henchman
20 Year Member
Joined
Mar 14, 2001
Posts
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Unfortunately it looks like one or two of the c roms has been compromised.
BB
Thanks for your advice! I started with measuring all the c roms with my multimeter found a broken trace. And now it works perfect
 

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BIG BEAR

SHOCKbox Developer,
20 Year Member
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Dec 14, 2001
Posts
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Thanks for your advice! I started with measuring all the c roms with my multimeter found a broken trace. And now it works perfect.
Congrats! You've hit the lottery on this one.It's been a very rare occurrence in my experience if at all that the culprit be a broken track with those CHAFIO pcbs.
A more common problem is the CMC spoiling...
Anything is better than a corrupted C rom above 4 megs on a CHA pcb imo
.
BB
 
Last edited:

HMG

H = Heinously, M = Massive, G = Gonad,
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Congrats on the simple repair, always a great feeling of accomplishment.
 
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