Sf2 jail bars

mike11

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I know these are known for bad customs .......... but this looks like bad ram or rom .... one thing I did notice is OE pin on ic5 of the top board is being held high disabling that 245..that's controlled by the pal at ic1 if this is or is not related I don't know I'm not that familiar with these ......... does anyone know a compatible pt no list for usable ram on this board ??
any insight would be appreciated

Thanks
 

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It looks like a faulty CPS-B-21, but I'll check the OE pin on IC5 on my working set when I get home tonight, and let you know if what you've got is normal.

Do you have a working set, to test each of the boards individually and confirm the issue is at the C (top) board?
 
From the looks of it it has the look and symptoms of a bad ram or corrupt rom ... wouldn't you think ??
 
Have you separated the stack and securely re-seated it. Most likely between the A and B board.
 
Yea I had them all along with all roms out n in a few times to make sure that's all ok as far as connections go
Look similar? Mine's a confirmed bad cps-b-21. OE on ic5 and ic6 are both high. My c board is known good, with a good cps-b-21.


 
Look similar? Mine's a confirmed bad cps-b-21. OE on ic5 and ic6 are both high. My c board is known good, with a good cps-b-21.



Yea .... too familiar .... here's what sucks with that deal .... friend of mine wanted one of these real bad for a real long time .... finds ones on eBay listed as "has monitor probs" apparently the pots on the monitor were all played with to mask the true image displayed ....

Those lines being high are bad and with them being controlled from the custom I guess it's about at the end of the road ..... I have a SF2 board I can get my hands on for him...... SF2 vs SF2 CE only a rom swap or are they differ customs ?
 
Different customs. Apocalypse offers modified files to convert any cps1 game to any other cps1 game. I converted a world warrior to ghouls and ghosts and couldn't be happier. It's literally just signals going to slightly different places but effectively no different than original. [email protected]

Ive got a handful of nos cps-b-21's and offer replacement service. See the link in my sig and pm if you're interested.

Good luck with it!
 
Different customs. Apocalypse offers modified files to convert any cps1 game to any other cps1 game. I converted a world warrior to ghouls and ghosts and couldn't be happier. It's literally just signals going to slightly different places but effectively no different than original. [email protected]

Ive got a handful of nos cps-b-21's and offer replacement service. See the link in my sig and pm if you're interested.

Good luck with it!

I sent you a pm
 
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