Samsung LNT4066F 40 in. LCD Television Logo
Anonymous Posted on Feb 06, 2011

SamSung TV Model LN-T4066F Model Code LNT-4066FX1XAA Year 2007 Color lines running from top to bottom of screen - vertical lines - TV man called the Horizontal color lines from top to bottom - Not sure what to replace.

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Bud Martin

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  • Master 11,361 Answers
  • Posted on Jun 03, 2011
Bud Martin
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Samsung LN-T4066F Color lines on the screen problem

Color lines on the screen? Look for bad caps as shown here, always replace them in a set. By Bud Martin


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Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
on Jun 03, 2011 • Televison & Video
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How to repair tv with lines on display

the samsung LNt 4661F has been known to develope flex tab bond issues which will cause line to run across the screen and you can also gt darker bands that run across the screen when the tab bonds fail. usually flexing the screen frame or a light tapping will allow the lines to disappear when its warm if its a tab bond issue
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I have a line running thru my tv

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I recently had my tv repaired for diode problem,it is a samsung LNT4066FX/XAA flat screen.Now instead of clicking sound and not turning on the power bar at bottom stays blue and the picture has color...

Well the capacitor problem usually causes power up problems. If your tv comes on now it sounds like you dont have the same problem.Vertical lines are usually caused by bad flat panel or dirty ribbon cable contacts on flat panel connections.
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Sounds like a bad connection on a ribbon cable or plug comming or going to the LCD display. This is something you should not try to fix as these circuits are very very fradgile and you can easily break or tear a ribbon cable . Call the manufacturer to get a tech to assit you. Good Luck
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