Question about Samsung LNR238W 23 in. LCD Television

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On my samsung , Whenever I turn it on all i see is random vertical lines and eventually (like 2 Hours) I get a picture. as soon as i turn it off starts up again, any hints? Kiedrow

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Either the T-CON board or the main board itself, check the connection between the main and the T-con bord first.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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http://en.wikipedia.org/wiki/Capacitor_plague

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Posted on Aug 07, 2010

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Posted on Jan 02, 2017

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Was this problem why you changed the panel in the first place?
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A common failure for shutdown in this unit is R428 and/or D408 in the 200v line. R428, due to heat, can change in value over time and eventually open. It may only be at that stage where the tolerance has changed but it will eventually open. D408 in that same line and for the same reasons tends to leak as it warms up allowing voltage both directions - thus shutdown. Might check thse and see if that's where your problem is...
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We have a Samsun LN-T4071F LCD TV. The screen is all white and colored vertical lines. We disconnect the HDMI cable from the Dish box and the screen stays that way. We turn the TV off for a couple hours...


Hello,
Do you have warranty on this unit?If warranty available contact servicer.

From your description problem is in the Digital board.

Replace digital baord.


Dont forget to Rate!

Good Luck
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