ianoid Posted May 24, 2020 Share Posted May 24, 2020 I have a TI-99/4 yes 4 that starts up to this kind of messed up screen. Is it RAM or other chips? What should I replace first? 1 Quote Link to comment Share on other sites More sharing options...
HOME AUTOMATION Posted May 24, 2020 Share Posted May 24, 2020 This happens to me, far too frequently, especially after I move the monitor from one location to another... Surprisingly, this is a quick fix... all you have to do is: Rotate the monitor, 90 degrees. 1 2 Quote Link to comment Share on other sites More sharing options...
+Ksarul Posted May 24, 2020 Share Posted May 24, 2020 Most likely a RAM issue. 1 Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted May 24, 2020 Share Posted May 24, 2020 Ram see the pinned faqSent from my LM-G820 using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
ianoid Posted May 25, 2020 Author Share Posted May 25, 2020 Lotta RAM swapping solved the problem although it didn't fit into any of the screen shots. Thanks and sorry for not FAQing the group. I was afraid it was something else that would be spotted by the wise eyes of the TI masters. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted May 25, 2020 Share Posted May 25, 2020 Was the problem a single RAM chip or multiple? Quote Link to comment Share on other sites More sharing options...
Sid1968 Posted May 25, 2020 Share Posted May 25, 2020 3 hours ago, OLD CS1 said: Was the problem a single RAM chip or multiple? Advice to find defective ram chips: If you want to find a defective RAM-Chip set a good 4116 in piggyback above each chip. If the error is gone you are at the defective one. But you should test if there are more ram chips defective. Watch out that you put the test-ramchip in the right direction on the others. Quote Link to comment Share on other sites More sharing options...
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