Gottlieb systrm 3 super mario display is off

robotype

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Sep 14, 2006
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milano, Milano, Italy
A friend called me to go check his mario which after a moving has a problem with the display, it completely black, no signs of life.

I am going to check the following

-fuses
-continuity for all cables connectors
-voltages
-gal @ U8
-transistors 2n5551

what else should I check? I have no experience with gottliebs
 
yes I have been reading about that, I asked my friend to check voltages and seems the -100 and -112 are missing from pin 1 and 2 so this leads to fuse 3 but after inspecting fuse and and holder he couldn't fix it so I will have to go there and see where the line is interrupted
 
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