Atari Video Music - power supply and simple composite mods

About this video

Atari Video Music is checked outward from its power supply. Timestamps run through voltage checks, signs of life, finding composite video and then adding a composite output.

Good to know: Mains voltage inside, and capacitors that stay charged after unplugging. Soldering brings burns and fumes; old solder contains lead.

Why watch it

Redrawn schematics by mgriffin are linked, which gives something to follow while voltages are checked. The composite mod itself runs from 22:23 to 34:16.