Pulled Graphics EPROMs
12/10/2014 6:49:14 PM
Pulled the 2716's from IC101 and IC102 on the main CPU board and verified. One EPROM did not verify. Will burn new EPROM and update after that.
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Reprogrammed Graphics EPROM
12/12/2014 7:50:09 PM
Repogrammed them and still no luck. The EPROM (IC101) was bad, but that wasn't the issue here. It might have only been off by a byte or two, which probably wouldn't have been noticeable. Stranger issue showed up now. The Text now has different colors going through it rather then being a solid color. Time to start with the Manual diagnostics. The Frogger Manual actually has a pretty nice troubleshooting section in it.
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Graphics Glitches Fixed
12/13/2014 5:19:50 PM
Replaced the 2114 RAM at IC85 and IC86 (replaced both, the one at IC85 broke when I pulled it out, so I'm suspecting that was the bad one), replaced them both just for the hell of it.
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Color Issue still exists
12/13/2014 5:21:58 PM
You can see that the GGE is now correct, but if you look at the text, it is multi-color. The text should be one color. Seems to only affect the Bottom couple of lines of the text, never the top or middle.
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Looking for more Physical issues
12/31/2014 3:31:32 PM
Started looking for more physical issues with the board and noticed that IC43 has a couple of pins that have been repaired.
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Pulled IC43
12/31/2014 3:32:53 PM
I pulled IC43 and replaced it with one from a donor board. As you can see, the repaired legs are still left... why they didn't just replace it... who knows? Probably didn't have a spare part on hand.
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Ooopps...
12/31/2014 3:49:48 PM
Ok, so I started reading over this repair log and had a thought... the color issue didn't show up until after I swapped out the original ROMS at IC101 and IC102... since the RAM fixed the Graphics issue, maybe I programmed the wrong versions of IC101 and IC102.... Sure enough, I put the original EPROMS in IC101 and IC102 and the color issue disappeared... Problem solved.
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