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Picture has disappeared!

My TV picture cut out all of a sudden and now you can hear the sound but there is no display. Also, when the power socket is switched on, plug makes a spark noise. I have checked the plug and the fuse is fine, and I have switched it into nearly every socket in my house and it still make the noise....any ideas??

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Ur high voltage is dead,the FBT,the flyback transformer is not transfer voltage.The big block of plastic with a red wire with a cap to the CRT(tv tube).That thing is dead.

Posted on Sep 28, 2009

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Posted on Jan 02, 2017

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Turn tv on the the morning has sound but no pic until tv warms up (about 15-30 mins)


Hello
Your TV has CRT socket problem. This is due to the improper contact of that socket to TVs picture tube. All TVs picture tube [otherwise says as CRT means Cathode Ray Tube] is connected with the remaining control circuit wia a picture tube base card, which can be located at the extreme back side of the picture tube. It is plughed in to it via a socket, and that socket is directly soldered to the base card. The socket mentioned above is faulty. This fault will be more at rainy and winter seasons. During these seasons, your tv will take more and more time to display picture. Because, during this seasons, humidity in the atmosphere is high.
Here replacing that CRT Socket is the only remdey. For that you have to open the back cover of your tv. Locate the base card, can be seen at the back of the picture tube neck plugged in. Unplug it with care, not to damage the picture tube neck or its pins. Do not apply high pressur or sudden jerks. It may break the neck of the picture tube as it is very tender with respect to the other parts of the picture tube.
Desolder the socket from the base board, it may have 9 to 12 connections to be desoldered. Take it out, and go for the same type number and pin confugaration. Replace it with the new one.

NB: Keep children away from you when you do this work. Be sure to unplug the TVs power chord from the wall socket before attempting to open it. Keep out all the connections to the tv, and make it idle. Ok

Oct 19, 2010 | RCA F27442 27" TV

1 Answer

The picture on our tevion television just disappeared. We have sound, but no picture at all. this happened very suddenly in the middle of a news broadcast.


Hi,

If everything else works - there is sound and high voltage (static on the screen) - but there is no picture (including no on-screen menus), this limits the likely area of problems is the video output circuitry or CRT filament connections. Check to see if the CRT filaments are glowing. If they are not glowing, check for bad soldering on the CRT neck board and around the flyback transformer.

Where the picture is erratic - coming and going entirely or changing brightness suddenly, with power off, remove the picture tube socket (carefully!) and clean the pins with fine sandpaper and use contact cleaner on the socket. This source of bad connections can result in a variety of erratic symptoms. Check for bad solder connections on the CRT neck board.

May 26, 2010 | Televison & Video

1 Answer

When the TV is turned on, the picture will only display briefly and then it won't display anymore, though the Power light still indicates that the power is still on.


U still have sound when the picture disappear?Than ur LCD inverter board it dead.No sound picture disappear?Than Ur Tuner signal board it dead.Tries Shopjimmy.com,Ebay.com for those refurbish boards.

Feb 10, 2010 | Sharp LC-42D43U 42 in. LCD HDTV

1 Answer

While watching the TV the picture suddenly went out - still have sound. Turning the TV off and on again does not help - the POLAROID Logo displays, but when the station connects - still no picture


possibly external power supply faulty under load it may fail these power supplies ofen have capacitor failure open the power supply to check for leaking/bulging/swollen capacitor is around 2000uf rated at 12v

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1 Answer

Picture flashing on and off


Press Display / Info button on "TV original remote", such display will disappear.

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check all resistors right in crt board & resolder picture tube connection. good luck!

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well tuners are being made smaller (and there is more cold solder in some points due to heat) so i would look up a new tuner for that tv...and if you know how to solder ,do it yourself it will be cheaper

Oct 20, 2007 | Toshiba CF32G50 32" TV

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