eprom question

mochaman

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I have a Jungle Hunt with a graphic issue. The issue is the "ropes" are split in two, alligators are split in two, rocks on hill are not present or on top of screen. My question is this. How do I determine which eprom(?) does those graphics? I am new to this type of troubleshooting. I have looked at the schematics but to me don't make sense or not reading right. Any help is much appreciated. Thanks, Mark
 
There is no way to tell from the schematics which graphics are stored on which Graphic EPROM (unless there us only 1 graphics EPROM :) the schematic will hopefully have notes specifying which are the graphics EPROMs if not check the name src code for that driver as it usually lays out what chip locations refer to what chips

If you are checking roms just pull all the graphics EPROMs and test them though being that the graphics are being drawn in the wrong place (rocks you mentioned are in wron place) that is more likely of a ram or men decoder error, though does not hurt to pull the roms and them)
 
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