I got a 50 inch plasma I would like to use but it doesn't display anything or any sound at all. Checked the power board and all voltages are there +/- 0.5 to 1v. using a craftsman meter so should be accurate. The thing that stumbles me is the blue led doesn't turn on. I can use the on/off button on the tv and the power button lights up and I can hear the relay click but no display or sound. I checked the board with all cables connected and all cables disconnected. Same result. All fuses are good even the green soldered on ones.
On the mainboard (I think) the 3 leds for S5v, +5v and +5v...

Re: HP w2207 hissing sound flickering

Thanks. The previous owner tried to fix it and almost burned up the board around one of the ceramic capacitors around the high voltage connectors for the backliht. Fixed that with a smaller solid wire.
But the main problem was 2 dead caps. 1000uf 16v i thing. got two from a local audio repair guy. one was a 1000uf 35v and the other was a 1200uf 25v. after changing them it works fine. nice bright picture and no problems at all.
Thanks

Re: HP w2207 hissing sound flickering

Thanks for the quick reply. I just tried to turn that thing on and nothing. Blue light on power button keeps blinking, but nothing else. Was interesting that it turned on when i got it home, connected it and it turned on after a while. Guess I have to google how to take that thing apart. I am right that you want me to look at the psu? Are there any service manuals for this monitor?
Thanks
Markus

Hi to all
I just picked up a hpw2207 from CL and it was posted as not getting out of sleep mode. I took it home and connected it and it seems to work fine. I rebootet a few times, turned it on and off and the only two problems I have is a hissing sound when turning booting or shutting down and sometimes it flickers before the picture shows up.
Could that just be a bad connection?
I am not a electronic guy but pretty handy with everything.
Someone has any ideas?
Thanks
Markus