Question about Philips Magnavox 20MT133S 20" TV

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20MT133S picture too wide for tube

My tv's picture seems to run past the tube by about 1/2". I don't see any adjustments on the outside to reduce the picture size. Any sugestions?


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There is a section in menu but i can't think of which one it is at the moment. I would suggest playing with your menu and you will find it.

Posted on Aug 14, 2008

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1 Answer

Picture tube


No question is really indicated here, if the picture tube in this set turns out to be bad buy a new set.

Dec 05, 2012 | Philips Magnavox 20MT133S 20" TV

2 Answers

GET SOUND BUT NO CLEAR PICTURE ONLY HORIZONTAL LINES form bottom to middle black blur lines


Video output section of your tv is in trouble. Either it not gets proper voltage [low voltage if voltage is there]; or video output Ic or transistors whichever used may got damaged. Never switch on the tv in this condition; that picture tube may get damaged. Get it repaired soon.

Oct 14, 2010 | Philips Magnavox 20MT133S 20" TV

1 Answer

Sony 42inch tv picture has reduced itself to size of regulaur tv instead of wide screen. How can this be adjusted ?


There should a selection for the size picture your viewing. There is most likely a zoom selection as well.

Dec 28, 2009 | Standard (CRT) Televisions

1 Answer

Picture to wide


This trouble symptom picture wide or"blooming", the picture becomes dim even with the brightness control full on,and there is an abnormal enlargement of picture or raster.Usually,the enlargement is uniform,but there may be some defocusing.In some circuits,the brightness control operatesin reverse(rotating the control for an increase in brightness produces a decrease) after reaching a critical point on the control. If the picture wide is not accompanied by insufficient width(a symptom of horizontal output failure) the probable cause is a high volatge circuit ony,particularly the HV rectifier and HV winding.Any circuit problem that reduces but does not completely eliminate the high-voltage output to the picture tube second anode can cause overscan. The most likely defects are leaking high-voltage capacitors,defective high voltge tube rectifiers,leaking high voltage leads,defects in high voltage circuit protective resistance,and shorted turns in high voltage winding of the flyback transformer.

Hope this may help you;

DON'T FORGET TO RATE:

Regards,

Sep 06, 2008 | Toshiba 32AF45 32" TV

1 Answer

Wide black area top of the screen.


More than likely it's not the crt. If the picture has "foldover" at the top of where the picture is currently, then more than likely there are bad caps. in the vertical scan circuit. If not, the vertical sizing probably just needs to be adjusted. You will have to get in to the service menu to do that.

May 26, 2008 | Philips Magnavox 27MT5405 TV

1 Answer

Poor picture, raster & sounds ok


If the picture is fuzzy (out of focus) it may have a focus adjustment on the flyback transformer. Possibly an adjustment available from the outside, through the back. Look for any markings on the plastic housing indicating Focus, Brightness etc.. You can use a small screwdriver through the labeled holes in the case to make adjustments.
If the picture is crisp, but faint or the colors seem washed out it may be the tube is at it's end of life or needs to be rejuvenated. TV shops can rejuvenate tubes but it's not cheap.

Mar 11, 2008 | Konka K2386U 23" TV

1 Answer

Philips wide screen 32in Digital TV


You probably have a component breaking down on one of the circuit boards. It would have to be checked out to find out which one. Stargazer

Feb 13, 2007 | Philips Magnavox 20MT133S 20" TV

1 Answer

Is it worth taking to a repair shop?


The circuit board is probably broken. OR maybe also the picture tube. If service shops in your area give free estimates, it might be ok to have someone checkit for you. Newer tv's however can be replaced cheaper than repaired unless they cost several hundred dollars. The smaller size of the circuit boards make it very difficult to repair them. Stargazer

Jan 11, 2007 | Philips Magnavox 20MT133S 20" 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

1 Answer

Slanted picture


Your deflection yoke (a coil around the neck of the picture tube) must have gotten turned. Your can turn the picture upside down by rotating this coil. If your set is in warranty, you should return it. When this "yoke" is adjusted the color is affected too. If you try this yourself you'd void the warranty and mess up your color. Stargazer

Nov 05, 2006 | Philips Magnavox 20MT133S 20" TV

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