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Samsung LE46A557P2F XXU PICTURE FAULT

When turning on tv from cold I get a white strip down left hand side of screen and also left hand of screen is mostly red. After approx 15-20 mins everything is good. perfect picture. I have changed the slave inverta board (cheapest first) problem still there?? Any help or what part do I require please, Thank you, John

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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

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SOURCE: Samsung Plasma TV

from the model number you have a 42" set,,the v_set and v_scan voltages need to be set 15vdc lower..this should take care of it,,if not then the plasma panel is bad

Posted on Dec 01, 2007

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  • 187 Answers

SOURCE: Vizio P42hd approx. 1" red line on screen, picture shifted

You will need to replace the control board and your TV will be better that a new one.

Posted on May 27, 2009

  • 1 Answer

SOURCE: Samsung LN-R408D - No Picture

My Mom's LNR408D also had sound but no picture. I was able to fix it by soldering in a jumper wire across a blown (1.5A ???) SMD picofuse on the "T-Con" board.
Consider attempting this ONLY if you: 0) Know enough to avoid the potentially fatal High Voltage parts of the power supply board!!!
1) Are a fearless hackazoid 2) know what you're doing with a soldering iron and teensie SMD parts 3) are gonna throw the busted thing out anyway so you have nothing to lose and won't be sad if you screw something up.
4) Know enough to avoid the potentially FATAL High Voltage parts of the power supply board!!!!!

74c09f0.jpg

This board is at the top center under a close fitting RF shield. The suspect part was labeled "CP" on the board and marked with "P" on the part. It is visible above the right-center of the connector from the main board. An ohmmeter showed it as open, so I bypassed it with a jumper wire from connector VIN to the hot side of C13. One image shows the suspect part and the jumper in place.

b761e87.jpg
The other shows the TCON board placement top-center (under its RF shield). With care, it seems possible to test the fuse and put the jumper in place without removing the shield. (Obviously don't touch anything else with the VOM leads!)

Thanks to ZORBUS and Steve's TV and Electronics for the idea.
http://www.avforums.com/forums/lcd-televisions/892447-no-picture-but-got-sound-my-samsung-lcd.html
http://www.gesda.com/transformer/Fall08_files/Page336.htm
Steve C

Posted on Sep 22, 2009

  • 1 Answer

SOURCE: Issue with LG Plasma tv model # DU-42PX12X

Another "same probelm"

My set has encountered this magical 50/50 split screen and it seems to be quite a problem since I am not the only one researching this issue. LG was of no use because of course it is just out of warranty. Any solutions on fixing this or am I out of money in buying a new plasma?

Posted on Nov 10, 2009

  • 1 Answer

SOURCE: Vertical colored lines on left half of screen.

I had this problem on a 37" Viewsonic LCD. Pulled it apart and through a process of elimination, I traced the problem back to a small board with several flat white ribbon cables coming out of it. The board was near the top center of the screen and under a ton of other equipment requiring almost a total disassembly.

This small board was clean but I noticed one of the rubber standoffs had slipped down and was making contact with one of the outputs running to the LCD. It also happened to be the output running to the section of the screen with the problem.

I postulated that the sticky glue on the rubber standoff may have just enough conductivity to cause a problem. Moved it so that it was no longer touching anything electrical and then reassembled the TV.

Afterwards, I turned it on and was pleased to see the problem has gone away! If you're having the vertical line problem, then maybe this could be your problem too, especially if you have a Viewsonic since it could be a manufacturing defect.

Posted on Mar 22, 2010

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Partial picture for samsung un40j520. TV was dropped and now partial vertical picture. Picture covers about 7/8's of screen and missing a vertical strip on left side of screen


If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.....

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half the picture on my tv screen turned completely white. ' IGN ...

www.ign.com > Boards > Community Central > The Vestibule

IGN
May 3, 2014 - 7 posts - ‎4 authors
what half? down the middle or every line of pixels? did you google the issue with your tvmodel? my samsung has issues with bad capacitors ...

samsung led ua40d5000 tv half screen turning white - Forums - CNET

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Feb 03, 2016 | Televison & Video

1 Answer

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T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Dec 17, 2015 | LG Televison & Video

1 Answer

Sony kdl52xbr4 tv has double vision on right side of screen perfect picture on left side is this a timing control board issue?


Fault with its T'Con board itself. 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/

Jan 14, 2015 | Sony Televison & Video

1 Answer

Problems with sky tv


If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

Jul 12, 2017 | Televison & Video

1 Answer

Samsung LE32 tv does not turn on. blue indicator light flashing


this is a common fault take back of and look on main power board for blown capacitor's ( raised tops ) they look like little batteries with white line down one side replace then with same value e.g ( 2000mf 25v)
remember what side line is on (TAKE PICTURE) for capacitors look on Charles hyde and son web site(CHS) under general components listed on left side of page

Dec 13, 2009 | Samsung LE32R72BX 32 in. HD-Ready LCD TV

1 Answer

Samsung TXG2547


The picture on your TV is created by an electron gun firing at the phosphor coating on the screen. The position of the guns beam is controlled by magnetic coils, which are driven by scan circuitry.

Normally, the gun scans left to right, top to bottom to create each single frame of the moving image.

From what you are saying, it sounds like there is a fault in the vertical control system somewhere - basically the gun is going left to right but not up and down, resulting in your picture being squashing down to one row high!

It is unlikely to be a fault with the magnetic coils. My guess would be a faulty resistor that is breaking down (and changing its value) as it gets hot.

It should be a relatively easy to fix, but given the age/value of the TV it might be worth considering a replacement.

Matt

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1 Answer

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you have a shorted green CRT that is affecting the other crts the short is internat to the crt that leaves what is called retrace lines. if the set is more than three years old then replace all three guns.

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