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Fly back lines

Hi
My tv is showing a white screen with flyback lines.there is picture in the back ground and there is proper sound.please advise what to look for.It is a
Daewoo Daytek 74cm crt tv.the model printed at the back is DCT-7499.

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Check the connector of the crt maybe got a resistor open or a transistor in short circuit.

Posted on Jul 06, 2008

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Hi.. Mine is a sansui tv and I bought it 3 years back. Now it is showing a horizontal line on the screen. Sound is fine but I can't see the picture, I just see one white horizontal line on tv...


The problem is vertical failure. Vertical output section to your TV ahs the fault. You ahve to check the vertcial output circuit for any component failure or loose solderings.

May 11, 2012 | SansuiS3275 TV

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32 INCH ZENITH PICTURE IN PICTURE ABOUT 15 YEARS OLD.PICTURE DISAPPEARED AND ONLY HAVE A THIN WHITE LINE RUNNING ACROSS THE SCREEN.THE SOUND STILL WORKS FINE. IS IT WORTHWHILE GETTING IT REPAIRED ??


When CRT TV's show only a white/bright line horizonatlly It is a failure of the flyback Transformer. Not all that costly to repair. Your old TV will probably still be working when all the latest plasmas and rear projections have been laid to rest. Fancy junk TV's dont get any better programs than those old reliable ones

Please rate my help++++Thanks for using FRIXYA

Aug 04, 2010 | Televison & Video

1 Answer

Mitsu vs-5042 Works then picture goes out. Thumping works sometim


If you occasionally have a picture then you stand a good chance of repairing this tv. There are bad grounds on the deflection board. Start with the board that has the flyback. I do not know the year of your tv. Sometimes the same model may have an option improvement than one couple of months earlier. The first suspected problem would be the vertical IC. In some cases this ic is located on the convergence board and in others the flyback board. It has seven pins and is the TDA version. Located on a large heatsink. Resolder this and any other grounds on both board. Some will tell you the P I P board is bad. This is a free standing board that can be removed and replaced. But please do the earlier option first.

Jun 28, 2009 | Mitsubishi VS-45607 45" Rear Projection...

1 Answer

Black Screen with a white line through the middle of screen.


The Flyback i'e the circuit board on the back of the tube as thus malfuctioned and give you this white line with sound.. If you did not have sound we would be discussing the PSU "power supply unit" This fly back for a 27 inch will run $105 plus tax.. The installation thereof would be done by a technition witch will charge 15 to 20 per hour.. Okay here is the sad part you can recycle this TV and get a flat panel for much cheaper then it would take to repair this unit "i am just telling you the truth" But do not shoot the messangero n this one, since I did tell you you're proble could you leave a rating?

May 24, 2009 | Insignia NS-27 TV TV

1 Answer

Iv got sound but with brite screen with flyback lines tryed ajust a1 tv goes in stand by


Try turning your screen down on your flyback. Adjust until no retrace lines

Apr 22, 2009 | Televison & Video

1 Answer

Picture is very dim


there is a problem in the flyback section of the tv set. the fly back has two knobs, one for screen and the other for focus. use the screen knob to adjust the brighness. if it did not help, either check the capacitors around the flyback or change the fly back with a new one. good luck

Jun 01, 2008 | Televison & Video

1 Answer

White blurry screen


Your Having a Problem with the High Voltage Transformer in the Set,You can pull the Back off(Not Advised)And you will find two controls on the Flyback*The Flyback is the Unit that has a Red Wire coming out of it Going to the Top of the picture Tube,with the set on adjust the One contol that says Screen,Till the Picture is Normal....Good Luck

Jul 16, 2007 | Durabrand DU1901 TV

1 Answer

Tv showing blue screen with flyback lines sound ok


Flyback lines? Is the picture all white with no brightness control with faint horizontal faint lines? If this is what you are saying, the screen voltage could be bad, and if thats the case, the picture tube or the flyback itself could be bad. You could also have a bad connection on the crt socket

Dec 27, 2006 | Philips Magnavox 20MT133S 20" TV

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Red Line across Screen


sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck

May 22, 2006 | Hitachi 36UX01S 36" TV

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