Question about Sony KV-32S45 32" TV

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Picture Flashes off and on

9 year old KV-32S45. The picture w/sound has begun to flash off and on when the TV is turned on. Does it on all inputs (line and tv). Picture with sound only, the set power is still turned on. At first it would last a minute or so then stop. It now flashes off and on for over 5 minutes and the flashing is fairly rapid at first, then slows in pace as the set warms. It will then stop for a period, 10 minutes?, and then do it again for a few times before taking another rest from flashing. The picture quality appears to me to be perfect. bright and vivid colors. Just won't hold on. A slight clicking sound goes with the cycling of the picture. Is this a old picture tube going? Worth getting even it looked at? Thanks!

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Re: Picture Flashes off and on

It was the Screen control as I know understand these to be 99.995 of the time (Sorry to say in the first post that sound was wasn't). Turned up the control, easy to get to...just rememeber to unscrew ALL the screws and not yank out the board and it's attached ribbon cables as you remove the back. Problem fixed for a short period (months?) as I understand. Sooner or later the tube gives out and you can't keep upping the power to offset. At that point it is plasma vs. LCD. And to think a TV tech would have wanted $125 for a 15 minute screw allright..LOL Somethings better to do yourself.

Posted on Mar 21, 2007

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Re: Picture Flashes off and on

Try first to turn down the screen control on the high voltage transformer. If that does not work the picture tube is most likely going bad. Sorry to be the bearer of sad news. Good Luck

Posted on Mar 18, 2007

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Re: Picture Flashes off and on

I am having the same problem. I took my set apart and cleaned it out real good and the problem seemed to get better. Now it only flashes for about 10-15 seconds and then stops. I am going to search for loose solder points in the next day or two. Hope it works!!! I'll let you know if it does!!

Posted on Mar 18, 2007

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Re: Picture Flashes off and on

Probably the tv has a loose solder in the board. this is normal especially when tv is aging. most of the components inside are emitting heat resulting to loose the solder. try to inspect and resolder if possible. but if you dont have the proper tools and equipment and you're not inclined with this kind of job, better bring it to a qualified tv technician. good luck!

Posted on Feb 07, 2007

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I have a 1999 32" Sony KV-32S45. Picture comes

Hello, Sorry to hear you are having problems with your Sony TV. The problem you are describing is a pretty common one being the slow collapse of the vertical circuit. This tv is know for having bad solder connections and the picture tube developing an internal short. Luckily for you it is a problem with cold solder joints, and when you straightened up the components, you temporarily made a good connection. You need to get someone to re-solder any and all bad /cold solder joints especially around the vertical circuit area making sure no solder bridges are formed during the process. Make the tv is unplugged before starting to do the repairs!
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Jun 18, 2009 | Sony KV-32S45 32" TV

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Don't beat it with a bat LOL, the problem your having is a simple solution, however this would be best left to a qualified tech to do, the Screen Voltage needs to be tweaked up just a tick, I've worked on alot of these sony's and 9 times out of ten thats what it is.


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Requires careful, meticulous soldering of horiz drive circuit +
rebuild power supply.....requires four parts......Horiz out xistor,
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