Question about Toshiba MW27FN1 27 in. TV/VCR/DVD Combo

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Screen white line problem.

My Toshiba MW27FN1R TV recently developed about an inch long area at the top of the screen of close together white horizontal lines. I'm wondering what this could be and how expensive of a problem it is to fix. This TV was made in July 2003 years old. Thanks for any help!

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Re: Screen white line problem.

There are two capacitors in the vertival output circuit that need replaced

Posted on Jun 19, 2008

Re: Screen white line problem.


Posted on Jan 02, 2008

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Samsung TSL2793HF - Slight Right Side Pincushion and Horz Line Bottom to Top Until the TV Warms up

Yes, this is rare but I have seen it before--not fixable if it is what I think it is----It is what is called a Dome effect---the shadow mask in the picture tube is actually contracting and or expanding depending on temperature---

Directly behind the phosphor coating (the stripes that you see on the screen) is a metal screen--the holes or perforations in it line up with the stripes on the phosphor screen.

Some masks either have a material or a defect causing the dome effect----Not likely to be anything else---a Pin amp problem will not usually act the way you describe but a shadow mask inside the picture tube will act exactly that way.

Dec 02, 2012 | Combination Televisions

1 Answer

White horizontal lines on top of my tv.

This fault is most likely from some worn capacitors in the vertical output section. An experienced service tech can troubleshoot the set, locate the defective capacitors, and change them for you.

Jerry G.

Jan 19, 2010 | Toshiba MW27H62 27" TV/DVD

1 Answer

I have 32 inch toshiba analog tv with builtin dvd and vhs, the top of the screen is like rollong over , like when words scroll across they are upside down at top of screen? or the top of someones head...

The Vertical circuit is going out. A leaky capacitor is causing timeing problems with the vertical height and retrace. Adjustments may seem to help, but they will noot last as the part is failing and will get worse and worse until it goes out all together.

It will need to be repaired by a qualified Tech.

Dec 30, 2009 | Combination Televisions

1 Answer

White lines at top of screen - can't make go away

You have a problem in the vertical output circuit. Check for bad capacitors around the vertical output IC. The value of these caps are marked on the side of them. Thanks for using fixya. Please take a moment and rate this responce.

Nov 30, 2009 | Toshiba MW27FN1 27 in. TV/VCR/DVD Combo

1 Answer

I have a 32A14 Toshiba TV. At full screen, the

you have to take in affect on how old is the tv if you have had it a few years then the screen is going out and will only be a matter of time before it goes all the way out and you will be buying a new one if it not old and its one of the newer flat panels then its the signal that the tv is receiving if its hooked to a digital antena then you only get max of 720 from it on certain channels no matter if the channel or channels are showing hd with out a hd source your tv will not show better then that i have a 42 inch hd flat panel and use a antena and the best i get from my hd broadcast channels certain times will i get true hd like when the news is showing or when one of the series that was filmed in hd is on other then that i only get a 720 picture instead of a 1080 most commercals are not film in 1080 but in 720 max and i dont know why makes no since

Aug 28, 2009 | Toshiba Combination Televisions

1 Answer

At the top of Viewing screen

I would suspect that the vertical output transistor is getting ready to go.

Sep 23, 2008 | Toshiba MW27F51 27 in. TV/VCR/DVD Combo

2 Answers

White lines accross top of screen on our 27 inch Toshiba,

lcd or plasma.
are the lines solid or blurred. do they have sharp edges.
You may have a memory problem with the display which can only be repaired by factory trained technicians, or a brave soul willing to find parts on ebay.

May 02, 2008 | Toshiba MW27FP1 27 in. TV/VCR/DVD Combo

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