Question about Magnavox 50" LCD HDTV 50MF412B

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Magnavox 50" no picture

Will turn on but blurry screen, no color, and shuts off after a couple of minutes

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Could be a failing power supply

Posted on Mar 19, 2014

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Posted on Jan 02, 2017

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1 Answer

I tried to adjust the color on the back, then the picture went black. Now I can't get any picture back. What should I do?


Put the screen controls back as close to there original position then unplug the set for 5 minutes. Those are sensitive adjustments for excessive beam current the set will shut down and the micro will latch up. Like I said, unplug then try again. You may have to do this a couple of times. The closest way to adjust them without a dvm is having the set in aux mode, turn r-g-b screen controls counter clockwise, look into the red crt and raise the red control until red is just visible then repeat for the other two. If your gray scale is off such as to much of any one color, turn that one down just a little. The last part I just stated is with a picture on the screen. Your picture should be black and white with no color added. (turn the color down via remote control)

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1 Answer

MY HITACHI 50GX30B HAD BLURRY VISION LIKE


Sounds like the convergence board, try replacing the STK voltage regulators and any resistors that may burned or discolored. This problem is causing the power supply to shut down probably.

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1 Answer

No power, lost power while watching tv


after picture is lost, does the screen remain lighting?

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Magnavox 50" DLP Tv power light comes on but then i hear a buzzing noise and then two red lights come on the tv. at no point does the picture turn on during this time. Can you please give me a possible...


Your bulb is burned out. I have had the same problem. It seems this television has an overheating problem--and short bulb life. I have had our 50 Magnavox dlp for two years and just put in the second bulb before Christmas. You can buy the bulb from a dealer on ebay for $99 and install it yourself. I is not in the housing so you have to carefully take out 4 screws and replace the bulb without touching the face of the bulb. To buy the one from Magnavox with the housing is much more expensive. I think the first time my husband replaced the bulb it took about 45 minutes--this time it took about 20.

Dec 16, 2008 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Blurry picture


You need to clean the projector lens on the optical engine using a soft cotton or, better yet, a chamois cloth. Also clean the mirror mounted inside the rear cabinet and also the front and rear of the screen itself.
If picture is still blurred then your the optical engine is most probably defective.

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Convergence problem all3 colors are out of allinement


Only when I try to get 1080i HD my screen is blurry. The colors are off. Any other type of setting it works fine but I miss the nice picture.

Nov 05, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

I think I have the same tv. Its a philips 50 in projection tv.


Common problem with the older projection Magnavox TV set. The opto IC chip has failed. Try www.magnavoxhelp.com - They have instructions and kits on their site.

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Toshiba TV repair


I have a Toshiba HD LCD tV, model 37AV50U. the screen is black. I still get audio and can change the channels but the screen stays black. It doesn't even show the menu box. Is this something I can fix myself?

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