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No picture, just dark blue screen, can't cut off unless unit is unpluged

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That usually means loss of signal. Try plugging a DVD player directly into the TV and playing a DVD.
If that doesn't help then it must be something more serious

Posted on Feb 07, 2010

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Toshiba tv has dark picture cant hardly see want get bright


If it's a old style projection screen pry off front grid, you,ll see a trapezoidal mirror this often becomes hazed smoke, dirt, ect. Make sure set is unplugged DO NOT ASSUME THEIR IS NO SHOCK HAZZARD BECAUSE SET IS UNPLUGGED(see capacitors) be careful and clean mirror with damp cloth and glass cleaner try not to spray as safety percotion, their are 3 tubes red , green, blue, green is th dominaent color if you know how turn blue HVU UP 1st( CLEAN picture tube lens 1st) These type of picture tube have clear poly glycol ( anti freeze) in lens unit to cool and is part of the optical system. I this fluid becomes contaminated then cost of repair may exceed value of unit, then increase red value I just thought you may bee able to do the color via menu not sure, if picture has a green tent at start this should help good luck , lot me know what you see.

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I have a magnavox 55 inch screen model nu is 6p5440w102. Picture is dark tried to lighten but wont brighten up anymore.


This is an older set------with back off you will see 3 large black cylinders with lens---these are the red, green and blue picture tubes.

Clean the lens with a lens cloth or paper towel with glass cleaner sprayed on the towel.

Annual cleaning of them is suggested as dust or dirty lens will cut down the brightness---this happens gradually over time and will make the picture darker and somewhat dull looking.

I do it with set on but you should UNPLUG SET and just look to see if dust on lens.

Simple and takes only a few minutes.

Let me know what happens.

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I get the blue screen with MSDC on it, it doesn't turn on unless plugged into the wall/electronic device, it wont turn off after I get the blue screen unless I unplug it, and it's been chargin


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no those tvs came with a black otuer screen that have rough ridges . If your screen is blue, someone may have replaced it with a dark colored plastic. You can get replacement screens at the following link, They are exspensive though.
http://servicemanuals.vstore.ca/

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I had the same problem. I unplugged my tv to move to another room and it will not cut on at all. I have only had the tv for three years

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1 Answer

The TV turns on and you can hear the sound but the picture is dark except for a thin line of blue dots in the center of the screen.


You have whats known in the biz as a cold solder connection on the vertical output IC or on the associated components. Not a job for the handi-man unless you know the issues with safty, and precautions to take with Hi voltage inside of tv sets. Shouldnrt cost much for the local shop to find your problem . Now on rare occations the poor connections are inside the IC and the IC has to be replaced. Good Luck

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