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strange video graphics issue


trapperkeeper

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My TI came down with a common cold, which was a bad vram chip. I had the last screen shown on this page, the orange one.

 

https://www.ninerpedia.org/wiki/Troubleshooting

 

The bad chip was changed and it was healthy again. But now its sick again with a different screen that isn't on that page. I will try to add a photo of it. What could the bad chip be now?

post-67149-0-13055300-1550270344_thumb.jpg

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Whichever chip is responsible for bit 7, LSB. That bit appears to be stuck on. ;) (The DRAM can fail to 0 or 1, though 0 seems more common.)

 

EDIT: Per the page you linked, it would be the 1111110 mask. The numbering in the picture appears to match what I wrote.

Edited by Tursi
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