This TI-99/4A had an interesting issue with its video signal

[@RoyAntaw]

Nice. I have just 'finished' restoring my Ti-99/4A, now for TIPI and 32K of memory :-)

[@gregthompson7793]

You don't need to take those two screws off the metal piece for the heat sink for the VDP chip. You can leave it on and put thermal paste on the metal piece between the chip and the heat sink.

[@johneygd]

Am stun how a crystall oscilator could fix that color problem.

[@ThatWriterGuy]

Very helpful video!

[@tiggerlator]

nice(NOT), lay the psu board on the metal panel.