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The picture on my Sony TV, Model # KDL-50W800B, is distorted and has black squares running across the entire screen screen. I need help diagnosing the problem so I will know which part to order.

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6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 16 Answers

SOURCE: Magnavox Color TV Model #27MT3305/17

The problem I was having was that the vertical deflection was collapsing on itself from the top. I'm a tech and I am visiting web sites who experience similar problems with the Magnavox 20 MT4405 in hopes of saving them time and money."Starsong" has the right answer. Replace electrolytic capacitor #2465. It is a
10 microfarad electrolytic capacitor rated at 160 volts. Although the existing capacitor appeared good,in circuit and out, the charge-discharge time was flat as compared with a new capacitor. Plus, when the capacitor is in circuit with full voltage applied, the capacitor leaks too much. The cost of the capacitor should be under $2. It should take under a half an hour to replace. Be certain to let your set rest, unplugged, for at least a half hour before attempting to replace this capacitor. There are high voltage present around the crt even after the set is turned off. The high voltages can cause serious bodily harm. I would suggest a tech discharge the anode on the crt with a high voltage probe passing through a volt meter and running to ground. You will need a soldering iron, solder ******, solder, and I like to use a little flux for good adhesion of component to board.

Posted on Dec 06, 2008

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pgh_pa_guy
  • 2992 Answers

SOURCE: Picture Problem

This is a problem (one of several) caused by poor solder connections on the circuit board. RCA uses the metal shield can surrounding the tuner circuitry (the area where the cable connector is located) to provide several ground connections. Many of these connections go bad (cracks form) and the missing ground connections cause the "picture shrinking" you see. Other problems are loss of tuning, set that intermittently turns off or on by itself, set that won't turn on at all, and even more.

The repair involves removing the circuit board and flipping it over so you can remove a metal cover on the bottom, repairing the several (many) affected connections, and then reassembling. This is a relatively easy repair for someone with soldering experience and the right tools (both a high-heat soldering gun and a low-heat iron are needed). But because of the fragile circuit traces in the repair area it is possible to do more harm than good if you don't know what you're doing.

RCA produced a service bulletin several years back detailing the areas to be repaired (although they still refused to admit they just hadn't soldered the places adequately to begin with). I'm not home now so I can't check my files but I'll see if I can find a link and add a comment later. When I was in the service business we charged around $60 for the repair. You might want to get an estimate from a shop (they should already be familiar with this trouble). Or if you're looking for a reason to buy a new set, try the repair yourself. If you're successful you've saved yourself the money. If not, it wasn't working anyway!

Posted on Feb 02, 2009

  • 1 Answer

SOURCE: Sony kdl-46xbr4 Black Horizontal Bands When I First Turn on TV

I had the exact same problem with the Sony KDL46XBR4. The problem started 11 months after I purchased the TV (Dec 2007). Luckily I placed the call to Sony just before the 1 year warranty expired and they replaced the entire front panel which is basically the whole TV except for the stand and the plastic frame. Last month the same issue started happening again (5 months since the repair). I called Sony and they say they have a 90 day warranty on the replacement part so I would need to pay out of my own pocket to first have the problem diagnosed (it's the EXACT same problem!) and then pay to have the repair done since the warranty has expired. I asked how much the front panel costs and it's $1,400! I paid $2,100 for the TV when I purchased it. Interestingly, at the time that part was back-ordered.....hmmmm, I wonder why??? Perhaps a recall is warranted here (no pun intended). Needless to say, I have sworn off Sony products due to their lack of support for this issue.

Posted on Jun 28, 2009

blueextc3221
  • 15935 Answers

SOURCE: I have a Flat screen

Are the lines all the way across the screen? or just a few? Solid black - or trannslucent?

Like this??

5af01cc.jpg
Horizontal drive has either data, voltage, or control problem from the pixel registry circuit......get it serviced before the problem spreads causing further damage.

However, in all likelyhood, the panel itself is bad. The Bravia line has had a bad rap about the faulty displays, and at $1800 replacement (plus labor) - it may be time to call SONY direct to complain!

Thanks!!
nc

Posted on Apr 02, 2010

  • 1 Answer

SOURCE: Sony kdl-v40xbr1 has horizontal lines

I'm having the same problem. I have noticed on mine that the menu when brought up is clear and I can see it perfectly. The picture on all the inputs is just as described above though. BUT, like I said I can see the menu just fine. This leads me to believe that it's not the panel. Anyone have a solution to this, or at least know what could be causing it?

Posted on Sep 24, 2010

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1 Answer

Sony bravia KDL-50W800B got only vertical lines when turn on.


You need to take it to a TV repair service, preferably one that specialises in Sony TV's. There is nothing you can do to fix this yourself.

Jun 16, 2016 | Sony Televison & Video

1 Answer

I have a Sony tv model kdl 46s 2010. the picture shows well except bottom right corner and and it is blocking the vision don't know what it is but the rest is fine. What is. Wrong


If the "blocking" of your screen appears to be a random pattern, you have a cluster of dead pixels, and it is best to replace the entire set (as repairs are unreasonably expensive). If you are seeing a black SQUARE at the bottom of the screen, turn off all closed caption and text options.

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How do i set convergence of red,green ,blue through service mode


Most common cause for this on the Sony KDL 40EX520 is that the connections to the screen across the top edge of the panel become loose causing blurred picture, mis-aligned colors etc. The Fix requires dis-assembly (Removal of the entire case) and re-seating/resecuring the connection across the top of the LCD Panel.
There is a pretty detailed video of the process (less the disassembly) here: https://www.youtube.com/watch?v=80PfZXFGDvQ

Jan 10, 2015 | Sony KDL40EX520 Bravia KDL-40EX520 40 Inch...

1 Answer

I have a pltv-32 lcd tv and the picture is distorted ath the top and right edge plus I see a shadow like pattern across the screen sometines when the colors are right. is this a display board problem?


Sounds like it could be a Controller board problem or a panel problem. You can try to replace the controler board, or tcon board, and if it doesnt fix the problem then your panel is probably bad. but always better to send to a repair shop because diagnosing a tv over the internet is hard. You need to check voltages to each board to check for shorts. Hope this helped

Please take the time to rate:] Thanks

May 05, 2011 | Sony BRAVIA KDL-40S2010 40 in. LCD...

2 Answers

Distortion and horizontl lines


Hi,
If same lines/ distortion appears in every input of tv then it is lcd panel (screen) problem as question shows it is Sony KDL-32ML130 lcd tv.
Can you please post picture of tv screen to show distortion/ lines to diagnose it correctly?
Thanks.

Nov 16, 2010 | Sony Bravia KDL-32ML130 32 in. LCD TV

2 Answers

Sony kdl-46xbr4 Black Horizontal Bands When I First Turn on TV


I had the exact same problem with the Sony KDL46XBR4. The problem started 11 months after I purchased the TV (Dec 2007). Luckily I placed the call to Sony just before the 1 year warranty expired and they replaced the entire front panel which is basically the whole TV except for the stand and the plastic frame. Last month the same issue started happening again (5 months since the repair). I called Sony and they say they have a 90 day warranty on the replacement part so I would need to pay out of my own pocket to first have the problem diagnosed (it's the EXACT same problem!) and then pay to have the repair done since the warranty has expired. I asked how much the front panel costs and it's $1,400! I paid $2,100 for the TV when I purchased it. Interestingly, at the time that part was back-ordered.....hmmmm, I wonder why??? Perhaps a recall is warranted here (no pun intended). Needless to say, I have sworn off Sony products due to their lack of support for this issue.

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1 Answer

Normal picture mode make the sharper picture quality but smaller screen apparance


If the broadcast is in 4:3 (square) then either you can have the black bars on the side, or the TV can stretch the image to fill the screen.
Nothing wrong with your set. The broadcast must be in 16:9 to fil the screen.

Aug 07, 2008 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

Black square on screen


Do you have a picture of the problem? Also, i would get ahold of Sony Customer care and explain the situation and see if they might throw you a bone and extend your warranty and pay for everything. If they won't do that ask if they would at least pay for the part. Good luck and let me know what they say. Just be nice and see how they respond. Squeeky wheel gets the oil. Smiles. Have a good weekend. Jay

Feb 02, 2008 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

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