Question about Toshiba MV20FM3 20 in. TV/VCR Combo

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TV VCR combo Toshiba MV20FM3

The vertical deflection is overdriving at the top of the screen causing horizontal lines superimposed on the top 4 or 5 inches that are a reflection of what should normally be at the top of the screen.

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SOURCE: Toshiba TV?VCR combo problem

you have bad caps in the vertical curcuit if you open it up you will see a smallmetal square ground sheild in there you will find two red caps look at them very carefully one will be wet it is leaking replac it

Posted on Nov 02, 2007

  • 1 Answer


My television has sound but no picture. I can not program the television because I can not see the screen menu. I also have tried to change the antennae but this does nothing to the picture's reception.

Do you have any ideas to correct this problem. There is no warranty.

Posted on Feb 03, 2008

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I was having the same issue and I've been to several video stores to rent DVDs and 2 out of 3 rentals have the same affect where it is just 'reading' but even worse, it would play fine and then freeze up during the movie- very frustrating. Now, after 3 years of owning it, it died today. They just don't make them the way they used to :(

Posted on Apr 04, 2008

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SOURCE: Screen white line problem.

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

Posted on Jun 19, 2008

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

My Toshiba required replacement of two of the vertical filters/capacitors. Doesn't take long and the parts are inexpensive, but requires a repairman.

Posted on Sep 12, 2008

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SOURCE: For Toshiba MV13L2 13 in. TV/VCR Combo - The

clean de path tape whith soft cloth and alcohol, and remove the mechanism for clean de pulley belt or change it.

Posted on Feb 16, 2010

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My screen has one line going across the middle.

The problem is a vertical deflection issue, caused by bad connections on the vertical deflection ic, or needs to be replaced and one or two bad capacitors.

Mar 17, 2011 | Toshiba MW27F51 27 in. TV/VCR/DVD Combo

1 Answer

One line horizontal onscreen

This is well known problem with the Toshiba line, the problem is in the vertical deflection circuits, it causes the picture to collapse to a flat white line, the vertical output ic and two to three capacitors need to be replaced to correct the issue.

Jan 19, 2011 | Toshiba MD20F51 20 in. TV/DVD Combo

1 Answer

Over and inch of fine lines at the top of the screen. How do I correct this?

The Toshiba sets are well known for these types of problems, this is a vertical deflection issue that involves two or three capacitors and touch up to the ic. This is a job for a technician because it will need parts and solder work to install them.

Jan 09, 2011 | Toshiba MW24FM3 24 in. TV/VCR/DVD Combo

1 Answer

The picture went out. Still have sound.


CAUTION: To prevent damage to the CRT phosphors, immediately turn down the brightness so the line is just barely visible. If the user controls do not have enough range, you will have to locate and adjust the master brightness or screen/G2 pots.

A single horizontal line means that you have lost vertical deflection. High voltage is most likely fine since there is something on the screen.

This could be due to:

Dirty service switch contacts. There is often a small switch located inside on the main board or perhaps accessible from the back. This is used during setup to set the color background levels. (On some sets, this is located on the CRT neck board and may be a jumper plug or other means of selecting service mode - not an actual switch.)

When moved to the 'service' position, it kills vertical deflection and video to the CRT. If the switch somehow changed position or got dirty or corroded contacts, you will have this symptom. Flip the switch back and forth a couple of times. If there is some change, then replace, clean, resolder, or even bypass it as appropriate.

Bad connection to deflection yoke or other parts in vertical output circuit. Bad connections are common in TVs and monitors. Check around the pins of large components like transformers, power transistors and resistors, or connectors for hairline cracks in the solder. Reseat internal connectors. Check particularly around the connector to the deflection yoke on the CRT.

Bad vertical deflection IC or transistor. You will probably need the service manual for this and the following. However, if the vertical deflection is done with an IC, the ECG Semiconductor Master Substitution guide may have its pinout which may be enough to test it with a scope.

Other bad parts in vertical deflection circuit though there are not that many parts that would kill the deflection entirely.

Loss of power to vertical deflection circuits. Check for blown fusable resistors/fuses and bad connections.

Loss of vertical oscillator or vertical drive signals.

The most likely possibilities are in the deflection output stage or bad connections to the yoke.
Good luck..

May 23, 2010 | Toshiba MW27F51 27 in. TV/VCR/DVD Combo

1 Answer

The picture is just small line in the middle of the screen , still as sound

Hi, if the line is from top to bottom, that is the horizontal circuit transistor problem;/if the is left to side that is vertical deflection ic driver and some capacitor to replace and verify soldering arround
needs to be fixed by a real tech..
have a nice day
hope that will help you.

Apr 07, 2010 | Sylvania 6727DE 27 in. TV/VCR/DVD Combo

1 Answer

Where are the vertical deflection caps located

Check C421, C427 and C429. These capacitors are located nearby IC401. IC401 is mounted on a heatsink and has the following markings on the body LA78041

Feb 11, 2010 | Toshiba MW27FP1 27 in. TV/VCR/DVD Combo

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

3 Answers

I have a three year old model pvc2542 tv/vcr combo the picture is just a line in the center of the screen

Bad vertical deflection circuit, unless you have a bad connection (bang on set to set it it fills out for a second) . you will need components replaced such as the IC, capacitors possibly a fuse from the power source to the vertical IC.
If its a bad connection soldering the IC pins is not to hard if you are OK with taking it apart yourself.
gd lk

Aug 21, 2009 | Combination Televisions

2 Answers

No picture

if there is only one horizontal line you have a problem with vertical deflection section

May 28, 2008 | Panasonic PV-DM2794 27 in. TV/VCR/DVD...

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