Cheyenne problem

FlashbaxArcade

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i have a Cheyenne that has working raster and plays blind! what i mean is that the whole screen picture doesn't come up in attract or gameplay. "pictures and sprites" are not there, anything that moves isn't there, but i can start and play the game. just can't see me or anything else. makes it kinda hard to shoot anything, LOL (difficult mode)

any ideas what would cause no sprites??? which eproms??? already reseated all chips

also in test menu, gun doesn't seem to do anything, which might be same problem with sprites i guess???

received this game like this..............

thanks in advance
 
ok if i have no sprites is that a ROM or RAM problem?

i have a multi-exidy now and i believe that takes out all the roms anyway....wondering will that do the trick?
 
id try the multi to see if it fixes it. Yes the multi replaces ALL the rams and roms... You remove all those chips from both boards before you install the multi..soooo.... Try it and see!!!
 
id try the multi to see if it fixes it. Yes the multi replaces ALL the rams and roms... You remove all those chips from both boards before you install the multi..soooo.... Try it and see!!!

i don't think multi replaces the RAM does it....thought it was just EPROMS?

it didn't work BTW. i switched main pcb(big board) and got sprites now but have other problems with sprites with "halos" over all thing that move!

gun still doesn't work either...trigger works and screen blinks but no yellow dot on screen where it is suppose to fire??? my optics out?
 
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