Any AV fix? in TI-99/4A Computers Posted April 29 10 hours ago, AtariNostalgia said: I guess it needs recapping? Probably not. Check that the wires from the power input at the back of the computer are actually attached to the internal power supply, and that there's continuity between the internal power supply and the motherboard. Also make sure that the power switch is good; it is known to fail.