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Flickering Colored Snow On Plasma TV

I have an LG Plasma TV and for the past four months I have had a
problem with colored "snow" flickering over the picture on my TV.

Here are a couple pictures I managed to take of the problem:

http://img187.imageshack.us/img187/9947/dscf1273rs7.jpg
http://img187.imageshack.us/img187/9675/dscf1274qs3.jpg
http://img187.imageshack.us/img187/6694/dscf1275dj0.jpg

I don't think it's cord related because it happens when I am watching
cable via component cables and a DVD through HDMI.

Any ideas on what could be wrong if it is the unit itself? I just
passed the one year mark with the TV last month and like I've said
this has been happening for quite some time, so I'm hoping something
didn't fail on me already.
 
I also should add that this is not something that happens all the
while the TV is on. It comes and goes. Also, if I shut the TV off for
a decent amount of time (20 minutes or so) and then put it back on the
snow is gone.
 
M

Mark D. Zacharias

Jan 1, 1970
0
Looks like aging panel problems we've seen in my shop.


Mark Z.
 
D

Dave

Jan 1, 1970
0
I have an LG Plasma TV and for the past four months I have had a
problem with colored "snow" flickering over the picture on my TV.

Here are a couple pictures I managed to take of the problem:

http://img187.imageshack.us/img187/9947/dscf1273rs7.jpg
http://img187.imageshack.us/img187/9675/dscf1274qs3.jpg
http://img187.imageshack.us/img187/6694/dscf1275dj0.jpg

I don't think it's cord related because it happens when I am watching
cable via component cables and a DVD through HDMI.

Any ideas on what could be wrong if it is the unit itself? I just
passed the one year mark with the TV last month and like I've said
this has been happening for quite some time, so I'm hoping something
didn't fail on me already.

if it comes and goes, could it be a dry joint problem ?
 
L

Leonard Caillouet

Jan 1, 1970
0
Likely a problem with HDCP compatibility. Try hooking up via component and
if it clears up this is the problem. Could be a bad HDMI receiver IC or
something screwy in the communication between devices. You can also try
cycling inputs on the set.


Leonard
 
A

Andy Cuffe

Jan 1, 1970
0
I have an LG Plasma TV and for the past four months I have had a
problem with colored "snow" flickering over the picture on my TV.

Here are a couple pictures I managed to take of the problem:

http://img187.imageshack.us/img187/9947/dscf1273rs7.jpg
http://img187.imageshack.us/img187/9675/dscf1274qs3.jpg
http://img187.imageshack.us/img187/6694/dscf1275dj0.jpg

I don't think it's cord related because it happens when I am watching
cable via component cables and a DVD through HDMI.

Any ideas on what could be wrong if it is the unit itself? I just
passed the one year mark with the TV last month and like I've said
this has been happening for quite some time, so I'm hoping something
didn't fail on me already.


I was just in a store that had a bunch of LG plasma displays playing
ads. I saw one or two with the same colored snow problem, so it has
to be a problem with the set. If it's still under warranty, you
should get it looked at as soon as possible.
Andy Cuffe

[email protected]
 
A

ampdoc

Jan 1, 1970
0
I have an LG Plasma TV and for the past four months I have had a
problem with colored "snow" flickering over the picture on my TV.

Here are a couple pictures I managed to take of the problem:

http://img187.imageshack.us/img187/9947/dscf1273rs7.jpg
http://img187.imageshack.us/img187/9675/dscf1274qs3.jpg
http://img187.imageshack.us/img187/6694/dscf1275dj0.jpg

I don't think it's cord related because it happens when I am watching
cable via component cables and a DVD through HDMI.

Any ideas on what could be wrong if it is the unit itself? I just
passed the one year mark with the TV last month and like I've said
this has been happening for quite some time, so I'm hoping something
didn't fail on me already.

How old is the set? This looks very much like an aging issue. As the panel
gets older it gets more difficult to reset each individual cell in the
panel. Thus sometimes the sustain voltage, x and y drive voltages may be out
of range for the panel, and have to be reset. You can adjust it out
temporarily by tweaking the vSus and X/Y drive voltage, but if the panel's 5
or so years old and has been used heavily, it's probably just EOL.

Jammy
 
J

James Sweet

Jan 1, 1970
0
I also should add that this is not something that happens all the
while the TV is on. It comes and goes. Also, if I shut the TV off for
a decent amount of time (20 minutes or so) and then put it back on the
snow is gone.


Sounds like an internal fault in the TV, you should have had it looked
at when the problem first occurred and it was under warranty rather than
continuing to use it.
 
How old is the set? This looks very much like an aging issue. As the panel
gets older it gets more difficult to reset each individual cell in the
panel. Thus sometimes the sustain voltage, x and y drive voltages may be out
of range for the panel, and have to be reset. You can adjust it out
temporarily by tweaking the vSus and X/Y drive voltage, but if the panel's 5
or so years old and has been used heavily, it's probably just EOL.

Jammy

I just passed the one year mark last month. I was just looking through
the manual and I see the warranty is two years, fortunately, so I may
need to call and get it serviced.
 
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