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Hi im michael i have a old sony projection screen 10 years old or more. i believe its a trinitron.the picture comes on for awhile then goes out and comes back on just a minute later

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Hi Michael,

If you were to watch a DVD using a different input than the cable/satellite input, does the image also fade in and out? When the image disappears, are you able to view the TV's onscreen menu or does it disappear too? When the image comes back, does it look fine and is the brightness the same?

Posted on Oct 16, 2008

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Hi...I'm thinking about buying a 2 year old Sony KV32Fs-120, is this a good tv and are there maintenance costs involved in having a tv like this? Thanks, Nancy.


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I havn't lost color, my standby light flashes 5 times.


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Sep 08, 2008 | Televison & Video

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Hi, IK circuit is engaging which basically means the picture tube is getting tired, the only "fix" is temporary (may get another year out of it). You have to increase the "screen control clockwise".
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The screen control inside the set may be on the highvoltage transformer or on the crt socket; either way if you can turn it up just a little clockwise and the picture comes up but doesn't look good you are likely to have a bad tube. Or try tapping lightly on the glass neck and watch the picture as you tap. If it reacts to the tap you have a bad tube. but the turning the screen control is the best test. Turn it the other way the picture goes off immediately. bad tube: too costly if it is available.

Dec 29, 2007 | Televison & Video

1 Answer

Sony kv35s66: No picture, just sound and red blinking


The most common problem (I have fixed lots) is the Vertical amplifier has developed a loose connection. It probably just needs resoldering. As things expand it makes and looses connection you picture goes in and out. The vertical chip is a large black chip that gets hot, over time it degrades the solder until a connection is damaged. Most newer sets have a protection circuit that senses the lack of height, and shuts down the picture tube to save it. When the picture dropped to a line on older TVs and left that way too long it would burn a line into the face of the picture tube. You then had to have the picture tube replaced along with the vertical amp. it's kinda like a screensaver for your TV.

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Help with sony trinitron problem


Are you serious? You have used that television... in particular that CRT well beyond its predictable lifetime.  Congratulations.  Those are early symptoms of CRT failure.  Your screen may turn green very soon also.  It will occur any moment now.  It is not cost-effective to repair.  Welcome to the next generation.  You will be amazed and delighted with LCD, plasma or DLP technology. existencebeyondperception@msn.com

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