Question about Samsung LN52A650A LCD TV

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To The Knight: followed your advice, nothing came up for my samsung LN52A650A1FXZA. will keep searching the problem.

Horizontal lines make the tv unwatchable. capacitors look good. samsung is no help. thinking of replacing power board. have been in touch with "The Knight", can't seem to reconnect with him. steve.

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Horizontal line problem is usually related with T'Con board itself. In rare cases, with panel too. There is details about this, at one or tow among the posts with the blog I've pointed out to you. I do clearly recall that, I've seen it there. It is a site, has more than 400 indexed pages on Google. a helpful one too. I've pointed out to many others, and most of them did find solutions to their problem there. I do get their responses too; by Fixya.
Just understand, an LCD TV is working mearly by some capacitors, and some users trusted as it is.
Contact any service technician. It will be the best.

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

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

  • 1 Answer

SOURCE: Samsung TV won't turn on- trying to fix it. A challenging problem

I had the same problem. I live in NJ and called the local authorized "service provide" listed on the Samsung website. What a joke. Quoted $350 just to show up, never showed up. So I opened my own TV. Took off the plastic back (10 screws) took off the large metal RF shield (12-14 screws) and noticed a blown component. The markings on the component were KL15L and it is apparently an NTC Thermistor. Obviously it got fried and not knowing if there was other damage I decided to set out to replace the entire Power PCB Board Assembly and not the component. There were two part numbers on the assembled board (BN97-00457E & BN94-00622E). After searching online I also found a suitable replacement number for these (BN96-04896A). I found two places who claimed to have the part or have it on order (shopjimmy.com and vancebaldwin.com). After placing orders with both and having neither come through, I broadened my search and found out that the LNR409D was basically the same model as my LNR408D so I looked for its Power PCB Board Assembly part number which turned out to be BN41-00521B. Google search for that part number showed the item available on ebay. I bought it a week ago (ebay 260311519904) for $144 plus $12 shipping. I removed the bad board an hour ago (6 screws about 7 connectors) installed the new one, plugged in the connectors, replaced the covers, plugged in the TV... AND IT WORKS!
Suggestion: If your TV is out of warranty then open it up (what have you got to lose) and see if the problem is obvious and maybe something you can fix (replace) yourself. The parts, spare boards, etc. are out there if you look.

Posted on Nov 16, 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

  • 1 Answer

SOURCE: Samsung HPR4252 with red horizontal lines accross the screen

I just had my HP-R4252 repaired on 12.05.09 with a similar problem. The picture is covered in horizonal, broken lines and the color is predominately red. They lines are grouped together in large bands across the screen.

The tech replaced the Y-Buffer boards (Up) and (Low) in about 20 minutes.

Samsung BN96-02034A BOARD, Y BUFFER UPPER ASSY
Samsung BN96-02216A BOARD, Y LOWER BUFFER ASSY

Posted on Dec 06, 2009

  • 927 Answers

SOURCE: Samsung model LNT5271f excessive relay cycling before full power

Howdy,
Yes, it is very easy to repair. Solder iron wattage should be at least 300 w.

The PSB is the center Board (towards left) after you remove the back off the TV. Remove the shield that covers the Boards and remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.

Good Luck, big IRISH.

Posted on Dec 28, 2009

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Still trying to troubleshoot horizontal lines on my tv. so bad, can't watch. have been in contact with "The Knight". so far no luck.


Hi Steve
The power board to your TV is working fine now. If you're determined to make experiments with it; just carry on!! Replace the boards. one after another, till the fault is rectified.

Nov 16, 2014 | Samsung LN52A650A LCD TV

1 Answer

I have a samsung ln52a650a1fxza with a distortion image. when I turn on my tv I'm getting horizontal lines, about three, that run from the top of the TV to the bottom. This distortion only happens whe


If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
Screen-shots to defective LCD are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.

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When you say "distort the picture", are you referring to dark image? double picture

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FixYa expert monitors advised me to not give people this advice, but I am a TV repair specialist with pretty solid experience in LCD and plasma TVs and there is only one good advice I can give for those cases.

So I am a bit in a conflict here as the website managers asked me not to tell people what I know is the best.

So I won't.

I am not telling you to replace the TV and I am NOT telling you to not waste time trying to fix this.

There...I didn't say it!

BTW the hiding and re-appearance of the line(s) had really nothing to do with the cable at the back; it had more to do with you applying physical pressure to the TV frame, something that may yield some result even now, but it can't be used to successfuly restore functionality in long run.

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