dwmcqueen Posted March 5, 2014 Share Posted March 5, 2014 I have a Vader 2600A I am bit by bit bringing back to life. After replacing the cartridge slot (originally two pins were missing), the system now, at least, sort of appears to recognize cartridges. However, every is wiggly on the screen (somewhat shown here): If you can't tell - that is ET , but this happens with several games. I am using one of these to plug it in to the TV - http://www.amazon.com/gp/product/B0028MXOF6/ref=as_li_ss_tl?ie=UTF8&camp=1789&tag=atariage&creative=390957&creativeASIN=B0028MXOF6&linkCode=as2 I have switching between channels 2 and 3, but nothing has worked (although it appears the switch is a bit finicky). I also played a bit with the two adjusters Any thoughts as to what else to look at? Quote Link to comment Share on other sites More sharing options...
zylon Posted March 5, 2014 Share Posted March 5, 2014 Looks like the RIOT chip if some games work fine. Quote Link to comment Share on other sites More sharing options...
dwmcqueen Posted March 5, 2014 Author Share Posted March 5, 2014 I haven't found a game that works yet. Could it still be the RIOT chip? Quote Link to comment Share on other sites More sharing options...
dwmcqueen Posted March 5, 2014 Author Share Posted March 5, 2014 I haven't found a game that works yet. Could it still be the RIOT chip? More specifically - could it be the TIA chip? Quote Link to comment Share on other sites More sharing options...
zylon Posted March 5, 2014 Share Posted March 5, 2014 More specifically - could it be the TIA chip? Also very possible. Quote Link to comment Share on other sites More sharing options...
dwmcqueen Posted March 6, 2014 Author Share Posted March 6, 2014 Throwing one more thing on the fire - the large 2200uf capacitor has a slight slash on the left hand side - could this be it or would a failing capacitor likely cause other issues? Quote Link to comment Share on other sites More sharing options...
SIO2 Posted March 6, 2014 Share Posted March 6, 2014 If it were mine, I would double check for any solder bridges or broken traces around the newly replaced cart slot. Then replace that ruptured cap with an axial electrolytic of the same spec uF and voltage. Take care to orient the capacitor correctly. I was reading another post which said that a ruptured cap can be a sign the board was once powered with reverse polarity. Quote Link to comment Share on other sites More sharing options...
dwmcqueen Posted March 7, 2014 Author Share Posted March 7, 2014 Well - the main issue was the TIA chip. Swapped it out and vert hold is fixed. There is a little interference - but I suspect that is the capacitor - so that is next..... Quote Link to comment Share on other sites More sharing options...
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