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27" sharp has audio/no picture/ horizontal white line across screen?

I have a sharp 27" crt tv. has audio, but no picture except for a thin horizontal
white line across the screen. what and how do i repair this????????.

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  • chrissyhurd Jan 02, 2009

    I have the same problem, the line sort of flashes across the screen then the tv turns itself off.

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  • 84 Answers

Bad vertical chip ic

Posted on Oct 19, 2008

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Posted on Jan 02, 2017

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Toshiba 32bv500b shaded picture with lines across screen is it the t con board is a way


If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
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Audio : No sound, please help.


DO YOU HAVE THE RED AND WHITE CABLES CONNECTED WITHE THE RED AND WHITE INLETS IF YOU DO THEN THE CABLES ARE PROBABLY FAULTY SO IF YOU HAVE EXTRA AUDIO CABLES TRY THEM AND IF NOT SUCCESSFUL YOR TV NEEDS TO BE REPAIRED AND IF YOU DONT HAVE THE MONEY YOU CAN GO ONLINE AND RESEARCH HOW TO REPAIR YOUR AUDIO ON YOUR TV BUT WHEN YOUR DOING THIS DONT HAVE IT PLUGGED IN ...........

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Sony 29 crt flat tv picture horyzantly sifted and led light five times blinking


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site. The search result might display about 20 Nos of related posts. Press the "All posts" at the bottom of the list, then you can select them one by one.

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My new AOC 27"LED has a vertical white line moving back and forth on the screen. as it moves left, contrast is reduced and as it moves right, contrast is restored


The TCON board or the LCD panel is faulty. Can confirm by replacing the TCON board.

If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

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Have a dark band horizontally across vizio tv. Appears to be a backlight, but not sure how to fix


Could be a bad CCFL lamp, if the set usess CCFL back-light system. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

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I have checked cables and different methods of connecting, but the white and red audio out of my PVR appear to have stopped putting out sound.


Go through the setup of the PVR and check the sound settings. It sounds like it's only producing digital audio, that's why it works with HDMI but you want analog, so set the audio to stereo, or try every setting to see what works!

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1 Answer

Tcl tv line through screen


maybe vertical ic be came hot and make some lige unconnected in board have to go to tv tichnican

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