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bigbavarian
Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
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 Posted: Sat Jan 08, 2011 5:31 pm Post subject: Panasonic PV-DM2792 Squiggley lines when scene is dark |
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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 |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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| Posted: Sat Jan 08, 2011 6:35 pm Post subject: |
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model number,
it is extremely hard to tell which one you have. |
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bigbavarian
Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
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| Posted: Sun Jan 09, 2011 7:16 am Post subject: |
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| So sorry. The model number is PV-DM2792. |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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| Posted: Sun Jan 09, 2011 11:25 am Post subject: |
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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. |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2879
Location: Overland Park, KS
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| Posted: Sun Jan 09, 2011 3:06 pm Post subject: |
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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 |
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bigbavarian
Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
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| Posted: Mon Jan 10, 2011 3:28 pm Post subject: |
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| So is there a question that I need to answer to lead me to a solution? |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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| Posted: Mon Jan 10, 2011 4:16 pm Post subject: |
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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? |
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bigbavarian
Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
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| Posted: Mon Jan 10, 2011 5:12 pm Post subject: |
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| I can tell you that it happens on the tuner, dvd, and VHS settings. I am not sure about the AUX input. |
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bigbavarian
Joined: 08 Jan 2011
Posts: 5
Location: Niskayuna NY
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| Posted: Thu Jan 13, 2011 5:02 pm Post subject: |
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| Is there anywhere I should start looking to diagnose this issue? |
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JTS1957
Joined: 21 Jan 2009
Posts: 2395
Location: Far, Far Away
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| Posted: Thu Jan 13, 2011 7:44 pm Post subject: |
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| 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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