Question about Sony Grand WEGA KDF-55WF655 36" Rear Projection HDTV

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SONY GRAND WEGA KDF-60WF655 - VERTICAL LINES

I HAVE A 2 I/2 YEAR OLD SONY GRAND WEGA 60". THERE ARE MULTI COLORED VERTICAL LINES RUNNING THE WIDTH OF THE SCREEN. THERE IS NO PICTURE ECCEPT FOR THE LINES. ALSO NO RESPONCE AS FAR AS MENU, INPUT CHANNELS ECT. I NOTICED THAT PRIORTO THIS HAPPENING, THE UNIT TOOK LONGE TO TURN ON. ANY IDEAS?

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  • Anonymous Jul 07, 2008

    Vertical colored lines, no remote response except for on and off. Sprayed canned air into set and it started working right. Whats a q box and swollen power?

  • moonbaby78 Jul 25, 2008

    We've got the exact same problem with our smaller Sony Grand Wega - KDF-E42A10 - Sony tech came out today and said it was the B Box... B Box Q Box? I'm trying to find normal terms for these haha ... It's my understanding the part alone is bout half the price of a new tv... :-/ Still researching though

  • DRIVERDOG3 Aug 01, 2008

    Q box ..I thought the cost would be $1500 but the cost is $520 per Sony authorized repair ctr.. should have it back next week.

    We will see.

  • moonbaby78 Aug 01, 2008

    Interesting - was that the price for the part AND the labor or just the part? Keep me posted please how that turns out, the Sony tech guy that came out to our house said it was B Board - parts and labor it would be almost $900 to fix - we're talking to Sony currently trying to get them to either fix it on their dime, or a credit towards a new tv....

  • moonbaby78 Aug 07, 2008

    Did you get your tv back yet? Just curious. Have you talked with Sony at all? It's weird we have the same symptoms but Sony repair has indicated two seperate issues. We are working with Sony now, "negotiating" on a credit towards a new Sony product - I think we're going to get a projector instead. From what I gather noone is making rear projection LCDs anymore because of all the issues. Let me know how yours turned out. Best of luck!!

  • Anonymous Aug 12, 2008

    Colored vertical lines on my Sony Grand WEGA KF50W60WE. You can see the screen behind the lines. When I hit teh display or menu button they crunch up to only cover half the screen.

  • Anonymous Mar 19, 2014

    vertical line appear on screen how to resolve the issue

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This seems to be common problem with Sony projection tv. I have the KDF-E50A10 that lasted only 2 years. It's sitting in a corner now until I figure out what to do with it. I am not going to spend another grand to repair it!! Never Sony again.

Posted on Aug 02, 2008

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Check standby power supply caps (elec. type probably swollen) after that then it's the q box

Posted on Jun 29, 2008

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It may be a fault at the line output transistor(loptr) it has tree legs and is usually bolted/clipped to a metal heatsink plate to keep it cool.
Its usually very near the LOPTX flyback transformer
Find the collector (middle leg) and follow the printed circuit till you get to the scan coil plug (looking for burnt pins as you go).
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Now find and test the S corrections cap ,its usually 220nf to 1uf at 250v-400v , look for burnt ends and/or swollen case
Now find the Linearity/width coils, these are fairly big , sometimes with an adjustable core

They measure very low zero on my meter. 1 or 2 ohms
3fcce55.jpg Better take it to a sony service station to check it.

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