I have been wanting to do this for awhile but have not gotten around to it. I took my Open Bench Logic Sniffer and sniffed the e (in picture from top to bottom) of the Atari 7800 MARIA chip. This is what the signal looks like before it goes into the video mod (D/A converter).
I am still learning how this translates into a picture on the screen. If anyone has any insight into this let me know.
You’re not getting old. Thats RF fuzz! – SOLD OUT – NOW OPEN SOURCE
I used to offer a variety of A/V mods choices for the Atari 2600 and Atari 7800 consoles. The modification adds a S-video and composite video output to the Atari along with Stereo sound. The mods where very easy to install. If you can solder a wire you could install these kits.
Comparison between stock RF and the mod on a 7800.
Different Modding Options.
- Fully Assembled Mod Kits are all put together and ready to be soldered into the Atari.
- Unassembled Mod Kits include all the parts needed to build the kit.
- Blank PCBs are just the bare PCB. No other parts are provided.
- Atari Modding Service includes the mod and all parts. You ship the Atari to me and I will install the kit. I also offer a “Deluxe” Service which includes gold plated jacks. These jacks are not offered on the kits.
- If you are a DIYer then the schematic is FREE.
The install guides to the mods can be found here.
All FreePCB Files can be found here.
Ben Heckendorn’s Video Review of the 2600 mod: Link
Garner’s Video Review of the 2600 mod: Link
Chris Kennedy’s Review of the 2600 mod: Link
Atari 2600 Video Mod V2.2D PCB