View Single Post
  #3   Report Post  
Posted to sci.electronics.repair
Randy[_3_] Randy[_3_] is offline
external usenet poster
 
Posts: 3
Default Snowy Picture on LG Plasma TV

On Jan 15, 9:25*pm, Sjouke Burry
wrote:
Randy wrote:
My LG plasma (42px50) has a "snowy" background. *By "snowy" I mean
that a constantly changing random pattern of isolated pixels flash - a
little like the old days when you would see static on the screen if
your antenna wasn't positioned properly. *This isn't as pronounced as
that, but the idea is similar. *This applies across all inputs (cable
box, DVD, etc.) *I have component cables from the DVD and HDMI from
the cable box. *I have tried replacing the cables and the cable box,
but he problem is consistent. *Even during that momentary black screen
that occurs when switching between inputs, the snow remains. *It seems
clear to me that this problem is not coming from the components or
from the cables, but must be with the tv itself. *Even when I select
an input that is not connected to any device, the snowy picture
continues.


Does anybody know why this might be happening or what I can do to
correct it? *Thanks.


A noisy or oscillating powersupply?


How would I test for this? The TV is plugged into a power strip which
is plugged into the wall.