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SONY TV KV32S40

gopal Posted Mar 16, 2005

My SONY TV is 6 years old. The picture starts shrinking from bottom to top and then the picture is gone.

My sony TV is six years old. The picture satrts shrinking form botom to topand pictuure dies. The picture appears only if the TV is not switched for long time. After the first time the TV dies, if I turn off and on, no picture comes. The audio is good.

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6 comments

    Re: SONY TV KV32S40

     Jim Here Posted Apr 09, 2008

    There's one on Ebay for NO RESERVE starting at a penny. I'll be surprised if it goes for more than $10. The guy probably just needs it hauled out of his house...lol

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    Re: SONY TV KV32S40

     Eric Heugel Posted Mar 16, 2005

    There are caps in the vertical deflection portion of your TV that are leaky. Get an ESR meter and check caps in that area.

    Comment 1, Last comment by julio martinez Dec 31, 2005

    Re: SONY TV KV32S40

     Vin Posted Oct 21, 2005

    What a coincidence? I have the exact same model TV and All of a sudden today, the picture dissapears about 30 seconds after I turn it on. Sound is good. All other symptoms are exactly same as yours (PAM). i still haven't decide to repair or replace yet. Thanks, Vin

    Comment 1, Last comment by Vin Nov 13, 2005

    Re: SONY TV KV32S40

     gopal Posted Oct 04, 2005

    I could not see any problem with the parts. SO I finally decided to call Sears. The Sears technician told us that some of the solder has dried. So he came and resoldered some of the connections and it works good. We paid $ $100 for home visit and $96.00 to fix, total of 196.00. Gopal

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    Re: SONY TV KV32S40

     Eric Heugel Posted Jun 30, 2005

    If the picture was shrinking from side to side there would be a problem with horizontal deflection. If the picture was shrinking top to bottom, then problem is in the vertical deflection circuits. 99 out of 100 times this problem is caused by one or more leaky electrolytic capacitors. First thing to do is identify the portion of the board that is the horiz. or vert. deflection if there are a large number of caps on the circuit board. Usually it will be the cap(s) that are of high voltage value.(anywhere between 50 to 350 volt caps). A schematic is extemely helpful, but not everyone can make out a schematic enough to find the caps and affected circuit. If you have an ESR cap meter, you simply put the leads across the cap and see if they are dry. Usually their capacitance is 50 ESR ohms and higher if they are. If there is a low number of caps, then go through each one by one. If you have no ESR meter, then you have to pull them from the circuit and find some kind of capacitance meter to see if their capacitance is within spec.(usually 10%+ or -). If you have no meter at all, I guess I would change the high voltage value caps out with new ones. That would be shooting in the dark at best, though. I admit, I have done it on several occasions and been lucky. If your TV went out with a pop or something, that could be another problem entirely. That could be a regulator transistor or maybe just a fuse that blew. If it does NOT come on and shrink to nothing, or shrink to a line, then there is probably something else wrong with the unit. Feel free to email me if you have any more questions.

    Comment 1, Last comment by Eric Heugel Jul 13, 2005

    Re: SONY TV KV32S40

     Vy Posted Jun 30, 2005

    Is this a coincidence or what? My Sony TV,(same exact age and model# ) has the exact same problem as gopal and pam. I live in Kamuela,Hawaii. I have the same decision to make as pam, repair or replace! Any suggestions out there? Please reply!

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