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Panasonic PV-DM2792 Squiggley lines when scene is dark   Goto page 1, 2  Next  
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bigbavarian



Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
PostPosted: Sat Jan 08, 2011 5:31 pm    Post subject: Panasonic PV-DM2792 Squiggley lines when scene is dark Reply with quote
Hello,

I am new to tv repair but am willing to learn and extremely handy.

I have a older tv that when there is a dark scene on the picture, the screen is squiggly. I don't know the technical term yet and that is why I am here, to learn.

Can someone tell me what the cause of this may be and how I may repair it?

Here is what it looks like...


http://www.youtube.com/watch?v=HKpeGImqGGU

Thank you,

Stephen
Google
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JTS1957



Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
PostPosted: Sat Jan 08, 2011 6:35 pm    Post subject: Reply with quote
model number,
it is extremely hard to tell which one you have.
bigbavarian



Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
PostPosted: Sun Jan 09, 2011 7:16 am    Post subject: Reply with quote
So sorry. The model number is PV-DM2792.
JTS1957



Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
PostPosted: Sun Jan 09, 2011 11:25 am    Post subject: Reply with quote
Jim,
Since his video (prior to his report of a model number - which confirms) showed a set with Tuner / DVD / VHS / AUX capabilities, asking if it was affecting just one (or more) of the inputs was a fair question.
kuhurdler



Joined: 28 Dec 2006
Posts: 2877
Location: Overland Park, KS
PostPosted: Sun Jan 09, 2011 3:06 pm    Post subject: Reply with quote
You're absolutely right. I think I get so used to removing so many harassing comments that I think I got a little trigger happy on this one.

my apologies
Google
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bigbavarian



Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
PostPosted: Mon Jan 10, 2011 3:28 pm    Post subject: Reply with quote
So is there a question that I need to answer to lead me to a solution?
JTS1957



Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
PostPosted: Mon Jan 10, 2011 4:16 pm    Post subject: Reply with quote
Your item has Tuner / DVD / VHS / AUX capabilities, I'm asking if it is affecting just one (or more) of those inputs?

Whether it ultimately leads to the solution ... who can tell at this point?
bigbavarian



Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
PostPosted: Mon Jan 10, 2011 5:12 pm    Post subject: Reply with quote
I can tell you that it happens on the tuner, dvd, and VHS settings. I am not sure about the AUX input.
bigbavarian



Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
PostPosted: Thu Jan 13, 2011 5:02 pm    Post subject: Reply with quote
Is there anywhere I should start looking to diagnose this issue?
JTS1957



Joined: 21 Jan 2009
Posts: 2388
Location: Far, Far Away
PostPosted: Thu Jan 13, 2011 7:44 pm    Post subject: Reply with quote
Whenever there are strange symptoms, I always pay close attention to unit's power supplies. Even a bad ground can't be ruled out. Make sure all supplies are there, within tolerance and don't have excess ripple.
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