MARIO BROS pcb problem?

qbass187

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Hey guys,
I was hoping someone might have an idea about what's going on with this new Mario Bros game I just picked up.
It appears to be working perfectly fine except I can not get Mario to jump. All the other controls work perfectly except that 1.
I put a new micro switch in, I switched with a known working switch, I checked the wiring harness and I reseated all the chips on the board and still nothing.
I'm out of ideas and I was hoping someone here might have a suggestion that I hadn't thought of yet.

Thanks, I appreciate it.
ERIC
 
Anyone? Any ideas?
I've checke dthe continuity of the harness and I get signal all teh way from teh button through the RFI shield to the edge connector so I assume the next step would be to identify the chip that controls the 1st Player (Mario) jump button...any know where to get that information?

Any help would be greatly appreciated.
Thanks, ERIC
 
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