Atari Big Blue transformer capacitor 27,000µf - 25v with screw terminals. Atari video games are pushing nearly 40 years old, the transformor filter caps are a common problem and should be replaced. New batch September 2020.
Reference Atari part number: 29-053.
Some of the common problems due to a bad tansformer filter cap:
Picture is jittery
Light streaks/hum bar/wave
Horizontal hold will not lock in
Vertical hold will not lock (rolling screen)
Game intermittently not powering on, to not powering on at all
Partial game list:
Cloak & Dagger
Fire Fox (verify your game needs two caps)
Pole Position (Requires two)
Pole Position II (Requires two)
Return of the Jedi
We also recommend installing an A/R / A/R II - Audio Regulator power supply board rebuild kit.