Schematics (Atari 2600)
There are several schematics for the Atari 2600 as there were many versions.
Here are several. The rest can be found on our Public Files.
Atari 2600 PAL Schematic
Atari 2600 Junior PAL Schematic
Atari 2600 Schematic
Atari 2600A (Rev 14/15) Schematic
Atari 2600A (Rev 16) Schemati