Celotine Posted March 8 Share Posted March 8 Ok got my PSU and games for my 5200. It doesn't work. Solid green screen no matter what game I use. Read it might be a RAM issue so I found some replacements inexpensively so I'll go from there. Anything else it might be? Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/ Share on other sites More sharing options...
+bent_pin Posted March 8 Share Posted March 8 This is a 4-port model with an RF power injector box? Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425792 Share on other sites More sharing options...
Celotine Posted March 9 Author Share Posted March 9 10 minutes ago, bent_pin said: This is a 4-port model with an RF power injector box? 2 port and I dunno what that other thing you said is. Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425798 Share on other sites More sharing options...
+bent_pin Posted March 9 Share Posted March 9 That's good. I'd check to see that each IC is getting power before moving on to doing anything with a RAM swap. Sounds like the GTIA is getting powered but the CPU might not be getting power or might not be working. Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425803 Share on other sites More sharing options...
+bent_pin Posted March 9 Share Posted March 9 @-^CrossBow^- What do you think? Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425804 Share on other sites More sharing options...
Celotine Posted March 9 Author Share Posted March 9 Just now, bent_pin said: That's good. I'd check to see that each IC is getting power before moving on to doing anything with a RAM swap. Sounds like the GTIA is getting powered but the CPU might not be getting power or might not be working. Cool which one is that, I'll put the meter on it after dinner Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425806 Share on other sites More sharing options...
+-^CrossBow^- Posted March 9 Share Posted March 9 9 minutes ago, bent_pin said: That's good. I'd check to see that each IC is getting power before moving on to doing anything with a RAM swap. Sounds like the GTIA is getting powered but the CPU might not be getting power or might not be working. @Celotine Check that you have proper input and output voltage from each of the twin 7805s. As they basically each power half of the system logic. If those are good, then I would start with the CPU which is the large IC to the upper left. Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425808 Share on other sites More sharing options...
Celotine Posted March 9 Author Share Posted March 9 8 minutes ago, -^CrossBow^- said: @Celotine Check that you have proper input and output voltage from each of the twin 7805s. As they basically each power half of the system logic. If those are good, then I would start with the CPU which is the large IC to the upper left. Thanks so much. I'm on it! Quote Link to comment https://forums.atariage.com/topic/362878-untested-5200-update/#findComment-5425813 Share on other sites More sharing options...
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