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Sega Model 3 step 2 graphics board problem

Hi! :)

I'm going a little blind with some information

On Group A Facebook Arcade Game Repair Help Group!! ,someone think of a dead D481850GF-A12 :rolleyes:

The problem is that there are 3 on the video board X/.

how do you know which one is at fault :unsure: ?

the D481850GF-A12 are no longer easily available on the net, but D481850GF-A80 or D481850GF-A10.

The frequency is much faster, could this pose a stability problem ? ?(

THANKS
:thumbup:



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