Philips projection TV 43PP8420 Wont turn on

[Prabadisha]

When I plug in my 43" Projection TV (Philips 43PP8420) it goes into
standby mode and thats fine, but when I turn the TV on I dont get any
picture but a pulsing beep sound (which I think is some kind of a
warning signal) from the power supply area. This happened after a power
outage. I want to clear things out a bit, before I pay a visit to my
local Philips agent. Can anyone please tell me what has gone wrong? I
want to know the magnitude of the problem as I dont want to spend a
fortune on a repair....any help would be greatly appriciated.

 

[James Sweet]

When I plug in my 43" Projection TV (Philips 43PP8420) it goes into
standby mode and thats fine, but when I turn the TV on I dont get any
picture but a pulsing beep sound (which I think is some kind of a
warning signal) from the power supply area. This happened after a power
outage. I want to clear things out a bit, before I pay a visit to my
local Philips agent. Can anyone please tell me what has gone wrong? I
want to know the magnitude of the problem as I dont want to spend a
fortune on a repair....any help would be greatly appriciated.

Something in the power supply has likely failed, definitly a hardware
problem, just get a tech to look at it, there's not much else you can do.
Even if you look inside, the chances of something being visibly wrong are
slim.

 

[Ol' Duffer]

When I plug in my 43" Projection TV (Philips 43PP8420) it goes into
standby mode and thats fine, but when I turn the TV on I dont get any
picture but a pulsing beep sound (which I think is some kind of a
warning signal) from the power supply area. This happened after a power
outage.

Probably something shorted out, like high voltage or horizontal
output transistor. Power supply is protecting itself - trying
to start, shutting down, trying to start, shutting down, etc.
Nothing the average user can do but call a repairman.