Fire Shark! Object Ram Error

[exidy]

the game has been working fine, looked over and saw a mess on the screen.
now it says "OBJECT RAM ERROR" and it wont boot.

ive checked the voltages on the p/s
checked the voltages on the pcb.

wondering if anyone has had the similar issue, etc.

thanks

[system11]

Check SMT leg joins, if they're OK work out which are the sprite RAM and logic probe them.

[exidy]

SMT leg joints look fine. ill have to figure out which are the sprite ram, im gonna search for some schematics first.

[system11]

They don't exist It's probably the fastest RAM on there - I'd guess at the skinny 6116s.

[exidy]

i piggy backed some 6116's and no change. im not sure if that works on that ram, but i tried
ill have to dig out my log probe tomorrow.