I recently received an Atari 2600 (4 switches) which was in working condition from the previous owner. Upon receiving it and plugging it in to my TV, it did not work. I see snow on the TV and I am using the RCA to RF (Coax) connector. I have a multimeter and when I tested the Atari power supply, it shows 20v. Is that an issue given that the brick is rated at 9v?
Also, with the power supply connected to an outlet and I plug the cord into the back of the Atari, I do not see the "spark" that other threads mention, regardless of whether or not the Atari is on or off. Unfortunately I do not have a spare Atari power supply or Atari to validate against.
If anyone has any thoughts on this, I would appreciate it. Thanks.