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No pic, just a black screen w/white grid on it. How do I get picture back on it.

I have a Curtis Mathes Tv Model # CM25101s My children were messing w/ the tv, and now all we can see is black screen w/ a white grid-4 squares. Is there someway for me to fix this problem, or is it a concidence that the kids were messing with the TV at the same time it breaks down? We can put DVD's in, but only hear them, not see the pic. Our Uverse is not viewable either.

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  • 36 Answers

Sounds like they enabled some test mode of the TV. Can you activate the menu using the remote control and see if you can navigate to disable that? How about if you just unplug it from the wall for 60 seconds and plug back in and maybe it will reset.

Posted on Apr 16, 2009

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1 Answer

I am trying to adjust the brightness on this circa 1980 floor model solid state tv


The contrast setting controls the relation between the light and black areas of the screen. If the light areas are too bright and are losing details, press the CVOL button; if the picture is gray and lacks contrast, press the VOLB button

The brightness setting controls the overall amount of light in the picture. If the picture is too bright, press the CVOL button; if the picture is too dark, press the VOL B button

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http://www.curtis-mathes.com
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It is called a shadow mask. It has perforations that line up with all the stripes on the screen (look close--red-green-blue stripes all outlined in black--tiny).

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I actually ten years ago worked for Circuit City--saw at least 5 sets (all larger Toshiba sets) with this issue. On seeing first one called our support staff and someone explained to me the issue---that set was under extended warranty and since the customer was angry the set was "exchanged" for a brand new set and the old one was disposed of.

Jun 01, 2012 | Curtis-Mathis Televison & Video

1 Answer

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The problem you are describing is a vertical deflection problem often caused by one or two open capacitors near the vertical ic.

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Need code to program Zenith remote control


Try these codes for your remote and TV. The are the Zenith codes for a Curtis Mathes TV.

CURTIS MATHES.....002 103
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These should work.

Regards,

Mike

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With the price of this screen size below $150.00 (well known makes and models) no you can't get it fixed for less.

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1 Answer

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better to replace a/v jacks as you have already soldered it

the problem is due to jack only.

 

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