Start by cleaning the cartridge slot AND any the game that you are trying to play. If the screen is still blank, verify that the channel is set properly on the TV. If neither of these work, the TIA chip has gone bad, and it is very common with these systems. The TIA chip is what controls the video output. There is no fix for a bad TIA chip other than to replace it or buy a new Atari. These are custom chips, no generic is available.
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Start by cleaning the cartridge slot AND any the game that you are trying to play. This is to make sure that the contacts are not dirty. If the screen is still blank, verify that the channel is set properly on the TV. Power on the system a few times and see if the game is briefly shown before going blank. This could indicate a faulty power switch, usually cold solder joints, or a failing voltage regulator. If neither of these work, the TIA chip has possibly gone bad, and it is very common with these systems. The TIA chip is what controls the video output. There is no fix for a bad TIA chip other than to replace it or buy a new Atari. These are custom chips, no generic is available.
Start by cleaning the cartridge slot AND any the game that you are trying to play. If the screen is still blank, verify that the channel is set properly on the TV. If neither of these work, the TIA chip has gone bad, and it is very common with these systems. The TIA chip is what controls the video output. There is no fix for a bad TIA chip other than to replace it or buy a new Atari. These are custom chips, no generic is available.