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Circuitbenders Forum => Circuitbending discussion => Toys => Topic started by: djsynchro on August 23, 2007, 10:32:42 PM

Title: Atari 2600: Stereo outs not possible!
Post by: djsynchro on August 23, 2007, 10:32:42 PM

Hi, I got Synthcart for the Atari and today attempted to do the stereo audio out mod.
Well, guess what, a PAL Atari has a different TIA ("Stella") chip. The 2 channels of audio come out of pin 13, mixed together. Pin 12 is called PAL-S.

On an NTSC Atari pins 12 and 13 carry a channel of audio each. (And so it can be modified with 2 outputs)

Was pretty bummed out, thought I'd save you the frustration of finding out the hard way like I did.
Now you know!

Oh by the way, the Atari & Synthcart sound pretty incredible on big speakers.

Title: Re: Atari 2600: Stereo outs not possible!
Post by: djsynchro on August 23, 2007, 10:48:04 PM

(http://img169.imageshack.us/img169/2109/tiapalqi6.png)

Here's the pinout :-)