Question about Toshiba 27AF41 27" TV

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Power light starts blinking

I have a 27af41 and the other day it started to have a trapazoidal shape inside the picture with thin blue lines then the set shuts off and the power light starts blinking. after unplugging and plugginf back in it works for a little while then the same happens again. does this sound like a power supply issue or what should i check? sometimes it has no problem.

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  • Anonymous Feb 07, 2008

    My Toshiba 27af41 is 7-yrs old...in the last 2-days, it started to exhibit a no vertical deflection problem (thin horizontal line)...when it first started having problems, it went away after about 5-min (warmup???), but today it continues to have the problem no matter how long I let it warmup...are the vertical IC components available ?



    Thank you

  • kleeg Apr 05, 2008

    Our TV started this about 3 weeks ago and has just shut of three times on its own. Then the power light blinks and you have to unplug it to get it to work again. After it happended today, the picture lost some of its color and nothing in the setting could get it back. The Direct TV guide that use to be blue is now in green and yellow tones. Time for a new TV?

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  • 93 Answers

Replace the vertical ic.having single line is a sign that your vertical ic is need to replace.if the power indicator is blinking is also a sign of defective vertical ic

Posted on Feb 06, 2008

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Picture went black except for partial green and blue lines &2 thin red lines


Vertical scan section circuit fault. Check and replace damaged component/s at its vertical scan output section circuit. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

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My Toshiba 27AF41 TV won't turn on when I press the power button. The red light blinks, but won't turn off when I press the power button again


This set is full of safety circuits that can cause this. It is really hard to say because anything can cause that. Have a shop check it out for you. Thanks for using fixya.

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Picture appears only as a thin, horizontal line...


chk vertical amp /vertical drive i/p from oscillator/power to it/power to vertical amp/chk dry joints-hot area/look at vertcal amp capacitors-swelling etc

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2 Answers

Picture is now a thin horizontal line


now only visible in a thin horizontal line. first of all you reduce brightness to monimum. it just to protect your tv from crt demage. your problem is in horizontal output section as you have mentioned that week or so ago the right and left bottom edges of the picture began to move in like a sideways triangle filled with black so this sympton is due to hor. section problem. your flyback transformer or horizontal output might be defective. but remember check for power supply is ok from surge protector hope this will help.

Oct 07, 2007 | Hitachi 35UX80B 35" TV

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No picture


a bright thin line in centre is called horizontal line. first of all do not keep tv on unless it is rectified. BUT If you want to put on tv keep brightness minimum to protect your screen for any demage. now solution your problem is in vertical section. 1 check vertical supply. 2 check parts in vertical section or loose contact. 3 yoke connrctor loose 4 ic defective It is not serious problem can be rectified easily

Sep 19, 2007 | Toshiba 32DF46 32" TV

1 Answer

TV does not turn on; red light blinking.


your problem is a more technical problem you will need a tech to look at your set if you are not a tech you wont be able to do it your self. contact a tech to repair your set the problem is in the power supply or related circuit.good luck.

May 02, 2007 | Toshiba 27AF41 27" TV

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Blue tint and lines on screen.


Those lines sound like "retrace lines" and several things can cause them. The most common are shorts inside the picture tube and shorted semiconductors in the video driver circuits. They can also be seen if the blue screen voltage is too high or if someone has tampered with the screen voltage control.

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1 Answer

The TV turns on and you can hear the sound but the picture is dark except for a thin line of blue dots in the center of the screen.


You have whats known in the biz as a cold solder connection on the vertical output IC or on the associated components. Not a job for the handi-man unless you know the issues with safty, and precautions to take with Hi voltage inside of tv sets. Shouldnrt cost much for the local shop to find your problem . Now on rare occations the poor connections are inside the IC and the IC has to be replaced. Good Luck

Jun 17, 2006 | Panasonic CT-25G6 25" TV

1 Answer

Red lines across screen


wow this set has several problems that cause almost the same symtoms. There is a b+ filter cap off the flyback that supplys screen drive voltage th the crt that gets leaky and gets warm when the sets on. Also theres a resistor that feeds the voltage that gets warm and a cold solder connection appears but its dosent look like a bad solder connection so just resolder it. as a matter of fact most of those largewr resistors in this set causes all sorts of complaints soI resolder most of them just to stop any problems and a friend in the tv business still told me in one case he had an intermittant crt. and x ray protection cuircut problems.. Hope this helps GOOD LUCK

Mar 27, 2006 | Toshiba 27AF41 27" TV

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