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My Samsung LCD TV 40'' model:LA40D550K7R has

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

ctf1800
  • 4402 Answers

SOURCE: white horizontal, zig-zagging lines

Sounds like the flyback transformer is bad. couple of 100 dollars if it is that

Posted on Dec 03, 2007

relectronics
  • 38 Answers

SOURCE: SAMSUNG LCD TV horizontal lines

causing of horizontal lines is leaky or defective capacitors. check big value capacitors around the board at Horizontal area. check the filter capacitor as well. good luck

Posted on Apr 20, 2008

  • 2 Answers

SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

I unplugged the TV and now the picture is back.I read that the LCD's are vunerable to static build up so unless my daughter is using her TV I unplug it.

I was thinking about getting a large LCD for the family room but I'm not going to until they improve on this technology.

Good luck to everyone!.

Cheers.

Posted on May 08, 2008

  • 10 Answers

SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

This should be repairable. It may be the LVDS Cable or the Main board problem. The only other problem is the T-Con Board.

Posted on May 23, 2009

  • 304 Answers

SOURCE: my smamsung lcd tv has thick horizontal lines

You have what we call 60 Cycle Hum Bar. You also might have audio hum too. The problem is a grounding issue either coming from the source such as a Cable Box or a Sat box. More often this occurs with cable boxes. First unplug the source box from the tv completely. You will find that the Lines have disappeared. Next connect a Coax cable coming from the wall bypassing the Box to the RF input on the tv. If you still have the Lines, then the problem is with the Cable signal not being correctly grounded and you need to call the Cable co.. The Cable box can also be causing this as well. If all of this does not work then try using another set of Component cables as they can cause the same issue.

Posted on Jul 16, 2009

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1 Answer

How to fix horizontal lines appearing on my Samsung TV


its a screen fault
if lucky and you can get one
one of the electronic boards inside the TV needs replacing



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samsung_ln40d630m3fxza_ln40d630_40_1080p_lcd_752947-rpa4bbi0r5t1sdnltmeqi4bp-1-1.jpg

Mar 07, 2017 | Samsung Televison & Video

1 Answer

How do I get rid of vertical black bars on a plasma television


Fix Panasonic Plasma TV Vertical or Horizontal Bars ...

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Dec 30, 2013 - Uploaded by Pet Rock's Garage
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Horizontal black lines on Samsung 50" plasma tv - Forums - CNET ...

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Jan 05, 2016 | Samsung Televison & Video

2 Answers

My led samsung tv has a horizontal line and the upper right corner shows a white vertical lines


Not good. You may have a tab failure. A repair shop may be able to diagnose and repair this, but most likely the lcd panel is broken. The panel is the most expensive part of flat tv's. A new panel will cost more than a used tv.

Feb 02, 2015 | Samsung Televison & Video

1 Answer

Why does my samsung ln40d630 lcd tv have a horizontal line across the screen about mid height? The line is present using all the different sources.


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Oct 13, 2014 | Samsung Ln40d630 40-inch 1080p 120 Hz Lcd...

1 Answer

Our three year ol Samsung TV has dark horizontal lines across the top of bottom of the screen. It is getting worse


Welcome to fixYa!

When you see lines like these across your LCD, it indicates a problem with your monitor's electrolytic capacitors.A faulty filter capacitor in the power supply board (SMPS board) can cause horizontal lines across your monitor screen.Horizontal screen lines are one of the most visible problems I see in LCD monitors & TV's that are 3-7 years old. It can happen as much from heat, humidity & less-than-ideal operating conditions, as it can from fluctuating current supply or manufacturing defects.

The way to repair horizontal screen lines is by removing the capacitors from the printed circuit board (PCB) and testing them with a LCR meter.

If it shows zero, there's your confirmation that the specific capacitor needs to be replaced.

now if you can replace them your welcome but i wont suggest that , cause you may break it more....!

any ways do comment if it helped you in any manner!

Apr 30, 2011 | Samsung HL-R6168W 61" HDTV

1 Answer

Our LN40A630 has three horizontal white lines across the screen on power up (center, center of upper half , and center of lower half). After about five minutes the lines go away. Tried Picture Test in...


This is a sign of your LCD panel beginning to die. Sometime soon those lines won't fade away and will become permanent parts of your TV screen.

Considering the fact that your TV is approx 3-4 years old, this is normally the expected lifespan of a TV. Once the TV becomes unwatchable, your best bet would be to begin shopping for a new one.

Mar 07, 2011 | Samsung LN40A630 40 in. LCD TV

1 Answer

Samsung LNS4041DX/XAA White horizontal lines


Hi my name is Roety,
I can help you with your issue ,
If the lines are present on every input you most likely have a bad screen. We usually replace the mainboard first because its cheaper .
Check part prices at encompass.com login as a guest
 
 
If I have helped you with your issue please click accept.
If you have more questions you can still respond until this post expires,
I will reply asap
Thanks

Dec 01, 2009 | Samsung LN-S4041D 40 in. LCD HDTV

1 Answer

SAmsung has two white lines across screen with no picture


If the 2 white lines are in the centre of the screen it sounds like you have a fault called 'field collapse' . The 'x' or horizontal circuit on the tv deflects the beam across the screen which in your case is ok because the line runs across the screen ok. The 'y' or field circuit on the tv deflects the beam down the screen. Without a circuit diagram for your tv i cannot point to individual components.

Aug 07, 2009 | Samsung Televison & Video

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