Question about Daewoo DP42SM 42 in. HD-Ready Plasma Television

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Daewoo 42" Plasma dp-42sm lines in screen

I have a Daewoo 42" Plasma dp-42sm with a black line in the screen. I had two at first. I soldered both and one started to work. I checked  the other resister and it found it was bad. I replaced it and it still  doesnt work. Any know where to get a screen or I will just sell it for parts so if anyone needs any parts let me know. Just the screen is bad.

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  • chastoes Jan 30, 2009

    I have 12 or so red & green vertical lines over signal display?Is there a mod to fix?

  • Anonymous Feb 28, 2009

    verticle lines through screen also ....on 46" model

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The problem is you have a cold solder joint on a component on the flex harness. My son will show you have to fix it on YOUTUBE. Check it out!
http://www.youtube.com/watch?v=EFpXYnGZCU0

Posted on Sep 05, 2011

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Hi Meadcorp
any chance you still have the power supply for the dp 42sm ?

Posted on Jan 20, 2010

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Hello Medecorp,
I was hoping you could help me. You mentioned that you soldered both....I'm curious as to what you soldered. You can find a screen on Ebay. Thanks for your help. Vin

Posted on Apr 29, 2009

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1 Answer

Screen showing three vertical black lines


Hey mate, very common in all makes of plasma TV's. See this how to video on to fix it, the video is for a hyundia but it is the same for your TV. http://www.youtube.com/watch?v=9NPobj0_GSo
It's pretty easy, just get a soldering iron and take your time, best of luck. Bro

Apr 02, 2010 | Daewoo DP42SM 42 in. HD-Ready Plasma...

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I have a daewoo plasma tv model dp-42sm with no video after taking back cover off found the x- sustain pcb with a burnt ic chip labeled iu4. after removing defective pcb and powering up tv set power stays...


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Attempting the solder fix is a big undertaking, gaining access to the components is a MAJOR undertaking, and probably not worth your while.
If it is simply one line you might try the baseball Bat fix....
In reference to the "basebal Bat fix" it works on occasion by using percussive force to realign the ribbon cables.
DO NOT use a baseball bat, but use a rubber mallet and with the power off tap gently directly above and below the offending line.
Its worth doing this if yo cannot live with the line.
If you can live with it, leave well enough alone!

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Just answered this on a different one. I have the Daewoo Plasma Digital Dream model dp-42sm, My dads tv expert friend looked at it and told us the ysus board was out. I got on ebay and bought the item from a store for 125 dollars used tested good with 12 dollar shipping, I put the part in myself it was very simple just take your time dont try and rush you have to take the actual bar the stand hooks onto off and the 2 boards going into the ysus board. It fixed the problem and is still in working order im using it now as the computer monitor.

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2 Answers

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the way how you described it looks like the screen is cracked but problem can also be in VPB (video process board).But without the model name its very hard to tell you more

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1 Answer

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take your tv to a tech the tv is having problem in the color circuit and the vertical circuit.

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2 Answers

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What might be happening is the backlighting and or its circuitry is going bad.

Feb 11, 2007 | Daewoo DP42SM 42 in. HD-Ready Plasma...

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