moonDungeon Posted September 2, 2015 Share Posted September 2, 2015 When replacing the 820pf caps, does direction matter? Does the positive end point up towards the cartridge slot? The replacement caps have a red line around one end, causing the material below to look pink. I think this is the positive end. Quote Link to comment Share on other sites More sharing options...
Wickeycolumbus Posted September 2, 2015 Share Posted September 2, 2015 Not all caps are polarized. Since the value is low, I'm assuming it's ceramic or film, which would mean there is no polarization. As far as I know, the only polarized caps you might find in a 2600 are electrolytic, which are the bigger cylindrical ones. These are marked with their polarity. Quote Link to comment Share on other sites More sharing options...
moonDungeon Posted September 2, 2015 Author Share Posted September 2, 2015 Thank you for the tips. These are polystyrene caps. I thought the end with the red line around it is the positive end. I just don't know if that end should point towards the cartridge slot. Quote Link to comment Share on other sites More sharing options...
moonDungeon Posted September 2, 2015 Author Share Posted September 2, 2015 (edited) I replaced both of the caps. Now I have no audio. Anyone have an idea as to what I can do next? Edited September 2, 2015 by moonDungeon Quote Link to comment Share on other sites More sharing options...
+RichG1972 Posted September 2, 2015 Share Posted September 2, 2015 Best thing to have done before replacing the caps or pulling the originals was take a picture with your phone of how it looked BEFORE pulling the originals, this way you could have exactly duplicated the placement Quote Link to comment Share on other sites More sharing options...
moonDungeon Posted September 2, 2015 Author Share Posted September 2, 2015 Yes, I know. My eagerness got the better of me. Quote Link to comment Share on other sites More sharing options...
BigO Posted September 2, 2015 Share Posted September 2, 2015 I'd bet there's a clear enough picture of a board like yours on the internet to help you see which they go, if it matters. Did you have audio before swapping the caps? Quote Link to comment Share on other sites More sharing options...
moonDungeon Posted September 2, 2015 Author Share Posted September 2, 2015 (edited) I'd bet there's a clear enough picture of a board like yours on the internet to help you see which they go, if it matters. Did you have audio before swapping the caps? I've searched the net for pictures and I believe they show the positive ends of both caps facing the cartridge slot but I wanted to verify here since now I have now audio after replacing the caps. Before replacing, there was audio, but it was filled with static. Edited September 2, 2015 by moonDungeon Quote Link to comment Share on other sites More sharing options...
+RichG1972 Posted September 2, 2015 Share Posted September 2, 2015 Is the TV you have it hooked to a newer or older one? If newer, before you replaced anything you should have run the autoprogram to attempt to lock onto a stronger signal with the Atari powered on. Sometimes this clears things up Quote Link to comment Share on other sites More sharing options...
markjd Posted September 2, 2015 Share Posted September 2, 2015 Small polystyrene caps like that are not polarized. The red band *may* indicate which lead connects to the outermost foil leaf in the capacitor. In some circuits it may reduce noise/interference if this lead is connected to the lowest impedance end of the circuit. Quote Link to comment Share on other sites More sharing options...
moonDungeon Posted September 2, 2015 Author Share Posted September 2, 2015 Is the TV you have it hooked to a newer or older one? If newer, before you replaced anything you should have run the autoprogram to attempt to lock onto a stronger signal with the Atari powered on. Sometimes this clears things up I'm using an LCD. It's fine. It has a clear picture when connected to the Atari. It had sound before I replaced the caps--very static sound, but I could here music in games that manage that. Small polystyrene caps like that are not polarized. The red band *may* indicate which lead connects to the outermost foil leaf in the capacitor. In some circuits it may reduce noise/interference if this lead is connected to the lowest impedance end of the circuit. Great! This does give me some confidence. Maybe it's just a bad connection. I had trouble removing all of the original solder with my copper wick. Quote Link to comment Share on other sites More sharing options...
+RichG1972 Posted September 2, 2015 Share Posted September 2, 2015 I'm using an LCD. It's fine. It has a clear picture when connected to the Atari. It had sound before I replaced the caps--very static sound, but I could here music in games that manage that. Great! This does give me some confidence. Maybe it's just a bad connection. I had trouble removing all of the original solder with my copper wick. Hopefully when removing the initial solder you didn't burn any portion of the board in the process, I know I have made that error once or twice Quote Link to comment Share on other sites More sharing options...
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