: How does slapping an old tv make it work again?
In: Technology
Oh I’ve done that quite a few times.
On old CRT tvs there wss a pretty big coil that would generate high voltage to “draw” our the picture from a line at the center to take the full picture.
But making this voltage would be done with high frequency input to the coil.
And that would generate tiny vibrations. This over time would cause the soldering connections to the board to come loose and it would fail.
By smacking the cabinet you could shake it back in place for a while.
One dirty fix for this would be to take grandma’s big smelly hairspray and give it a good dose whwre the coil is connected to the board.
This would glue it back together for a few more years..
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