It powers on, you hear it, but the TV says 'no signal'.
An HDMI port torn loose from pulling the cable with the console on the floor.
HDMI port replacement on the board: hot air, preheater, microscope. The best-paid console repair, and the one most shops turn away.
It depends on the model and on what we find inside, so we quote each repair individually. The diagnosis fee depends on the device, and you approve the exact repair price before any repair starts. If it can't be fixed, you only pay the diagnosis.