Question about Sony KV-27S46 27" TV

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Up and away

The tv gets alot of horizontal lines then shrinks upward until the screen is completely black. sometimes when tv is tapped or shaken it comes back

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Re: up and away

But please be aware of the hi voltage inside these sets and BTW the vertical IC should be replaced NOT resoldered as you will have the same problem a few weeks down the road!!

Posted on Jun 15, 2006

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Re: up and away

Problem in your vertical circuit look for cold solder joints.

Posted on Jun 15, 2006

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1 Answer

I've suddendly got black horizontal lines on my

Ur tv have cold solders in the horizontal IC.Know how to solders.Take the back of a screw driver tap around the PCB board to find out where cold solders.Resolders that area will fix this problems.

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This is usually a bad elect capasitor or a bad solder connection on the vertical IC, The capasitors will be close to the vert chip..Sometimes you can clear problem with a light tap on the TV, if so then suspect bad solder.

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Panasonic CT-32G6E Intermittent single horizontal line

I would suggest to locate a part that looks like the one on this link and re solder all the pins, also check for any high power resistor nearby the IC295890 and put some fresh solder.
Let me know if you need further assistance.

Aug 07, 2008 | Panasonic CT-32G6 32" TV

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Insignia 32" Tube TV NS-RTV32

The vertical output IC LA7847 is failing. It will likely fail permanately and you will have just the horizontal line. The set will require service. Just do not run the set very long in this state. That thin white line can likely burn into the crt phospher and will show all the time thus ruining the glass picture tube...

Jun 05, 2008 | Standard (CRT) Televisions

1 Answer

Shrinking screen.

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Jan 01, 2008 | Standard (CRT) Televisions

2 Answers

One White Horizontal line on black screen

replace the vertical IC problem solved

Dec 31, 2007 | Sanyo DS25390 TV

2 Answers

Only Horizontal line

If you can hit it, it is probabl;y just bad solder joints on the vertilcal output IC (yes thats right vertical, because it stretches,or in your case compresses the picture vertically). kind of hard to point you to it if you've never been in a tv but it will be a little chip standing up mounted onto a piece of metal (heat sinc). There will be a few though the IC will likely have 1 row of pins maybe 7-10. And probably have a part number on it that begins with "LA" like maybe LA7838. You can tap around the different heat syncs with a NON-METALIC with the TV on until you find the one that is sensitive that should help you identify the vertical IC. Any way unplu flip the PCB over and resolder that IC. That should take care of it.

Dec 28, 2007 | Standard (CRT) Televisions

1 Answer

Screen shrinking

You have bad solder connections on the vertical output IC or on one or more of the surrounding components. Good Luck

Jul 21, 2007 | Toshiba 36A40 36" TV

1 Answer

Picture Shortens, Converges, eventually the set shuts off - $50 for Correct Solution

Open the TV amd turn it on in a position you can see the picture, possibly through a mirror. Now gently tap all of the metal heat sinks on the circuit board until you find the one that is sensitive it will have a small chip mounted vertically on it, with probably like 7-10 pins. The number on the chip will most likely be an "LA****" number. Now turn the circuit board (UNPLUG FIRST) over and resolder the pins. This is your problem 99% of the time. Be very careful there is High Voltage inside this TV.

Apr 26, 2007 | Zenith IQB36B42W TV

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