z wrote:
boardjunkie wrote:

z wrote:

Anyone knows which circuit in a tv set is resposible for the
brief delay between switching the set on and the appearance
of an image on the screen?

Tube cathodes heating up via the filament (heater).


O.k. so what conclusion could one draw if this warm up
period is taking very long (15 minures)?



What sort of TV is this? It could be that the CRT heater supply is low,
I've seen this caused by dried up electrolytic capacitors. If it's a
Sony TV, the CRT may be aging, causing the AKB circuit to blank the
picture. Unless you're experienced working with electronics there isn't
anything you can do aside from take it to a reputable tech and let them
have a look.