señorito Posted September 25, 2012 Share Posted September 25, 2012 Hi, i'm new in this forum. I have an old Atari 2600 JR Long Rainbow PAL, but i'm chilean, so i wish convert my console to NTCS, i need a special TIA for that? Please guys, i need your help. Quote Link to comment Share on other sites More sharing options...
yllawwally Posted September 26, 2012 Share Posted September 26, 2012 The consoles are the same, except perhaps the power adapter. The difference is in the games themselves. 1 Quote Link to comment Share on other sites More sharing options...
+SvOlli Posted September 26, 2012 Share Posted September 26, 2012 The consoles are the same, except perhaps the power adapter. The difference is in the games themselves. This is not correct. The chips differ even in the pinout. Take a look at http://www.atariage....a-ntsc-and-pal/ and look for AUD1. Not only is the TIA different, but the clock of the TIA/CPU is also slightly different, which is the cause why the audio frequencies differ a bit. señorito, rather than going for converting a console, I'd buy an NTSC version on ebay, and mod that one with composite output. More costly, but the chances on success are much higher. 1 Quote Link to comment Share on other sites More sharing options...
PFL Posted September 26, 2012 Share Posted September 26, 2012 I take it the biggest reason for the differences are to do with the 50hz/60hz differences on screen updates and the differing palettes? Just curious. Quote Link to comment Share on other sites More sharing options...
RevEng Posted September 27, 2012 Share Posted September 27, 2012 In addition to that stuff PAL consoles also need to alternate the phase of the color signal every line. (hence Phase Alternating Line) 1 Quote Link to comment Share on other sites More sharing options...
señorito Posted September 28, 2012 Author Share Posted September 28, 2012 Thanks, i'm thinking buy another console , but will be best. Buy the way, with a new TV (LED or LCD, including "PAL-N, PAL-M, NTSC-M") should have no problem? that would be another solution or not? Quote Link to comment Share on other sites More sharing options...
alex_79 Posted September 29, 2012 Share Posted September 29, 2012 The 2600 doesn't have any region lock system, so it will run games of any format, anyway the palette is different between PAL and NTSC TIA chips, and the frame rate is deternmined by the game program. So if you mix games and console with different formats you will have a TV signal with the color encoded according to the format of the console but with number of scanlines and framerate according to the format of the cartridge. Even if your TV accept that non-standard TV signal (PAL TVs usually displays a 60Hz signal without problems), the colors in the game will be incorrect because of the different palettes and there's no way to correct that. This only applies to the 2600, other consoles may behave differently: usually the frame rate is not determined by the game, but by the graphic chip in the console and sometimes it can be selected by changing the signal on one of the pins (you can install a 50/60Hz switch in that case) and the palette might be the same or very similar between different formats. 1 Quote Link to comment Share on other sites More sharing options...
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