I can hear the TV turn on, but nothing happens?

Question

My TV seems to turn on, but I the picture doesn't come up, nor do I hear any sound. The TV looks exactly like it does when its off, but i can hear the sound of what the TV sounds like when it turns on and is idling in the blank screen.

My Dad already got a replacement for this TV, so basically i'm looking for help on identifying the problem and repairing it myself (if I can).

Also its a tube tv, not lcd or plasma

Answer 1

If it has more than one input available, make sure the correct input is selected.

Answer 2

Older tvs used to have a reset button on the back, does it?  If so give it a try.