Missing lines in all sprites on Atari Return of the Jedi

jedijeff

New member
Joined
Jun 23, 2008
Messages
15
Reaction score
0
Location
Norwalk, Ohio
Missing lines in all sprites on Atari Return of the Jedi

Hello,

Every other horizontal line is missing on all the sprites. Everything else seems to work fine. All the ROMS test OK in self-test. I am getting 4.99 Volts on the logic board. I tried reseating all the chips on the board but that had no effect. I'm not sure if I should try a cleaner on them or not. I have heard of this problem before on ROTJ games but I couldn't find a solution in any of the searches I did. If someone knows a solution or a theory on which chips may be bad I would like to to know what it is. Any help is greatly appreciated! Thank you for looking.

Jeff
 

Attachments

  • ROTJ sprite.JPG
    ROTJ sprite.JPG
    25.4 KB · Views: 13
Probably a bad motion object ram at either location 4K or 5K. I would suspect those first.

Brian
 
Back
Top Bottom