Wharfedale LCD37F1080P with bright white screen problem

[millerc]

Hi everyone,

I've had the following TV for about 3 years and it's just suddenly done something very strange.

I'd been watching TV for about an hour and then all of a sudden the picture went from normal to almost white as if the brightness has been turned up to 200%.  I can just see a picture through it but it's like it's been overlaid with a bright white haze.

I unplugged the TV and left it switched off (unplugged from the wall socket) for two days.  When I switched it on it took it about 5 minutes before it went bright white again.

Interestingly, switching channels or video input sources switches the screen brightness back to normal for about 5 seconds and then when it shows the picture from the source then it immediately goes bright white again.

Does anyone know what the problem might be and how to fix it as it would be a shame to dump it ?

The TV is a Wharfedale 37 LCD (LCD37F1080P).

Thanks,

Chris