Question about AOMNI Corporation Magnavox 20MF500T/17 20 in. EDTV-Ready LCD TV

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Troubleshooting magnavox television model 20mt1331-17

The television screen has a vertical line in themiddle of the screen and a dark screen covers over the television screen

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I have a model 20tm1331-17 magnavox tv and when i go to turn it on it will turn itself back off. Any suggestions as to the problem?

Posted on Sep 11, 2010

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Posted on Jan 02, 2017

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1 Answer

Vertical line on screen


Hi, This is a problem that's far too common among flat-panel and projection LCD TV's?and it's generally known as "vertical banding." If the lines are there all the time or intermittent but in the same location it is an indication of a bad panel. The panel driver can also be the cause of this symptom. Samsung panels have had issues with the connector that carries the LVDS signals to the panel itself, this is not serious and can be resolved and little cost. These faint vertical bars (often most apparent when the screen is totally dark or displaying a solid background, like the sky) are defects that occur during the manufacturing process, and while the worst offenders are typically screened out, many more make it to store shelves. Since you've pinpointed the banding and it's driving you nuts,also its under warranty, call the manufacturer and demand a replacement; in most cases, they'll capitulate and send you a new set, although you'll probably have to go to the trouble of packing and shipping back your defective TV (make sure the manufacturer covers your shipping costs). Regards sreejith

Jul 30, 2007 | Philips Magnavox 42MF521D/37 Television

1 Answer

Vertical hold


replace the V-HOLD control its worn out

Jul 13, 2013 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

At the top of the tv screen about three inches wide there is a black line that covers the picture at the top of the screen


I, thats a vertical circuit problem with some capacitore ,they are leak or dry
and at the same time you replace the vertical ic and verify for bad soldering
in the vertical circuit.
hope the will help you

regrads Alan

Jan 26, 2011 | Philips Magnavox 20MT4405 20" TV

1 Answer

My magnavox tv has sound but only a white line


You have a bad ground or even a bad vertical IC. Have a tv tech pull the board out and inspect. It could be bad grounds and resoldering them may restore the picture. Also remember to check all capacitors in the immediate area of this IC, bad caps will heat up the vertical IC, and cause bad grounds. Replace the caps and Vertical IC as needed. Should be a standard fix in this case. Thanks for asking!

Apr 25, 2010 | Televison & Video

1 Answer

Grey lines


this a vertical circuit, and HV Circuit Defective, send to repair

Jan 15, 2010 | Philips Magnavox 27MS343S 27" TV

1 Answer

Magnavox 32MF337B/27 power supply works and like another writer when power is turned on the audio works the channels change and you can tell that all remote and on set keys work, but no picture except an...


hi i have a 50" magnavox that has a problem, i was looking at several websites and i find out the dirfferent posibilities.
in your case i have 2 posibble answers.
1) negative image
tv turns on and shots down in 2sec
flashing pixels on screen
dark image
has sound but no video
screen goes black and then return to normal picture
vertical color lines on screen no video
vertical color lines with video
vertical bars on screen
horizontal lines on the image
picture goes red after while
IT COLUD BE (X or Y or Z SUSTAIN BOARDS )

2) just left part of screen working
just right part of the screen is working
vertical and horizontal lines on screen
part of screen not working
some functions not working
no video but has sound
functions not working at all
IT COULD BE (LOGIC CONTROL BOARD)
TErry HerreRA

Oct 04, 2009 | Philips Magnavox 42MF521D/37 Television

1 Answer

Vertical multicolored lines covering the whole screen


Just a shot in the dark, but if you are using component video cables, double check that they are in the correct inputs and outputs. If this doesn't work or you are not using component video cables then I don't have any other ideas as of now.

Oct 05, 2008 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Horizontal lines


may be vertical deflection circuit bad capacitors and is a job for experienced tech

Apr 01, 2008 | Philips Magnavox MS2530C 25" TV

8 Answers

Dark vertical lines on tv screen


If under warranty then of course use that.
This is a display problem. One solution someone knowledgeable in electronics can try.
This problem can be caused by a bad connection fitting of the flat cables on LCD controller board. Dis-connect the flat cables from the LCD controller(T-CON) and carefully reconnect them. Try the unit before reassembling the back cover. You may have to disconnect/reconnect several times to show improvements if this is the problem.

Sep 25, 2007 | Samsung LE32R74BDX 32 in. HD-Ready LCD...

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