jamesk Posted December 8, 2011 Share Posted December 8, 2011 (edited) Note: I've worked with high voltage circuits before. I have a very nice looking 1989? RCA G26231 TN Analog TV. I just know this thing would rock for classic gaming. The only problem is that it has some bad image warping using the composite RCA jack (see below). I took the TV apart and looked it over. It was very dusty but also had some hot candle wax spilled inside it. I cleaned out what I could, but it looks like I'll have to take out the main board for a good cleaning. All the components are thru hole, so that's a plus. If someone could give me their guess to what to look for or what part of the main board circuit is the likely culprit, I would be grateful. It might save me some troubleshooting time. Edit: This is a CTC156/156 Edited December 8, 2011 by jamesk Quote Link to comment Share on other sites More sharing options...
bust3dstr8 Posted December 10, 2011 Share Posted December 10, 2011 Vertical collapse can usually be fixed by recapping the whole chassis. I would recommend 105° Nichicon or Panasonic, they are a lot better than the crap in Radio Shack...you can find them for pennies each at Mouser. Quote Link to comment Share on other sites More sharing options...
candle Posted December 11, 2011 Share Posted December 11, 2011 i would rather replace two capacitors in vertical deflection stage one is on its power supply (usually 1000-2200uF/35V or more) the other is around 330-470u/63V and its responsible for such effects this is charge pump capacitor, and if its failing, then vertical stage can't give exact voltage ramp needed for deflection coil 1 Quote Link to comment Share on other sites More sharing options...
jamesk Posted December 12, 2011 Author Share Posted December 12, 2011 Thanks for the info. I'm going to recap the whole thing. I figure I might as well if I'm going to have the board out. Quote Link to comment Share on other sites More sharing options...
Stephen Moss Posted December 12, 2011 Share Posted December 12, 2011 Does that only occure when using the RCA input or does also occure via RF (from the same source)? Quote Link to comment Share on other sites More sharing options...
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