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TV WAS DROPPED AND NOW ONLY THE TOP PORTION OF THE SCREEN IS VISIBLE. THE REST OF THE SCREEN IS BLACK AND MULTI COLORED

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More than likely the light engine was knocked off alignment, or is now defective. To verify this, if you bring up the TV's onscreen menu, is it only visible on the top portion? If not, and it looks normal, the problem will be with the input board as it is not able to properly send the whole signal to the processor. The onscreen menu is a signal also being fed through the light engine so if it looks fine, the light engine, which is very expensive, should be fine as well.

Posted on Oct 17, 2008

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I have a magnavox big screen tv that was giving to me. i do not have the manuals with it. when i turn it on. the color is in three demension I cannot get it adjusted where they colors are all together.


hi,
first of all check the tint setting on your TV picture menu.
if not get the correct color then, your telivision is a dlp TV that means it have a color wheel in side. if the synchronization of color wheel is not correct this problem can occur. there is a sensor for counting the rpm of color wheel. also have a black mark on the color wheels rotating portion. the sensor scene this black mark for making count. if there is any dust in that portion it will make difficult to the sensor making the counts. you have to remove the color wheel to clean the same.
ok

Feb 12, 2011 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

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Tv went double and green and black lines appeared at the top and bottom of the screen


tv has a condition common in rear projection. the geometry and coincidence of the screen is called convergence. this is regular repair in the workshop. I expecting the fail stops in convergence amplifiers (first step of this critical area) because total convergence out of sinc as you are posting can lead to the control of the convergence previous to the amplifiers (is called digital convergence unit). It can increase the cost of the repair. some testing in the bench can divide this decision. But usuallly a simple damage is one color or two colors distortion, your tv shows three of them because this black area visible top and down.

Apr 16, 2009 | Sony KP-51WS510 51" Rear Projection...

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Very fine blue lines veiwable when the background has black in it


Hello,
You need to adjust (actually bit decrease) G2 volts (calls Screen volts) of Blue gun.
If you are familiar with big TV repair and have electronics knowledge then let me know to guide you further.
thank you.

Dec 13, 2008 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Blurry, Multi-Color, Multi-Line


covergence problems and its not adjustable you need work done on the convergence board or a new board and realignment which can be timely.

Nov 01, 2008 | Samsung DLP HL-P4663W 46" Rear Projection...

1 Answer

I have only the top line of a multi-screen picture (4 small boxes, all the same), below which are some colourful flashing very small boxes, and the rest of the screen is blank except for a big black box. ...


First turn off the closed caption (CC on remote) then make sure the picture in picture is not activated. turn it off.( PIP button on remote). If that don't help un plug the tv and then plug it back in after a few minutes.

May 06, 2008 | Projection Televisions

1 Answer

Hitachi model no 50es1k---july 1993


loose connection on circuit board and also maybe bad caps in vertical area.

Mar 03, 2008 | Projection Televisions

1 Answer

SAMSUNG TV


Possible bad color wheel..need lamp code # to get correct
wheel part #.........................................T.

Nov 15, 2007 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Black screen w/small portion of top of picture showing at bottom of screen


Hello, the problem with your projection TV is in the so called bad soldering in the vertical deflection stage. Please contact a pro in order fot fix the error. If you need more assistance please advice. Arpi

Mar 18, 2007 | Sony KP-57HW40 57" Rear Projection...

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