Question about Philips Magnavox 51MP392H Rear Projection Television

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I have a magnavox 52" projection big screen tv with pip, it is from 1992. The picture has gotten darker and darker even with the bright adjusted all the way up. Is there an easy fix for this?

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Replace the coolant in the CRTs that will restore the color and brightness to a new appearance. You can get the coolant replacement kit at the following link.
http://servicemanuals.vstore.ca/product_info.php/pName/phillips-crt-coolant-replacement-kit/cName/repair-kits

Posted on Oct 08, 2009

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1 Answer

The picture is not clear anymore. It seems as though the picture has gotten gradually darker. We still use the television, it is just not clear enough. When watching nighttime scenes, we cannot see mu


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. The power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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69189a5.pngSOLUTION #1

What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

Jan 21, 2013 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

MY TV PICTURE HAS GONE A LITTLE DARKER AND ADJUSTING BRIGHT, CONTRAST, COLOR,ETC. DOES NOT HELP


How long u have this RCA analoge tv?Around 10 years or more and used it like about 5 or 6 hrs everydays?Yes,than ur tv it is losing CRT tube radiation cohetion.As times go bye years in years out the tv CRT-(tv tube) radiation will slowly dying out,Tv actual pictures will lost some of it luster and it brightnesses to the tv auctual pictures.Brightnesses of CRT tube will get darker and darker until the tv actual pictures barely it is watchable anymore.Contrast,Brightness and Colors adjusting more will help some.But u have to take this tv aparts and take a Flat scerw driver turn up a little bit more of the tv HV-(high voltage) SCREEN button on the FBT-(flyback transformer) to make any big differences of the CRT tube brightnesses.The FBT-(flyback tranformer) is the big block of plastic with a red wire with a black cap hook up to the tv CRT-(tv tube).This adjustment on of the FBT,HV-SCREEN button will help the tv CRT-(tv tube) last another year or two.

Aug 16, 2011 | RCA TruFlat 27F520T 27" TV

1 Answer

We have a philips 52" projection tv that my son


If it has a blue cast someone likley turned up the blue brightness inside the TV...there are 6 knobs...2 for each color..try turning that down. Its not the PIP or bad tube...

Jan 06, 2011 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Older 52 inch tv magnavox where screen is too bright or how to repair it


There two possible things based on your description.

Go to a channel that is in black and white and examine the picture--is it black and white or yellow?

These sets do have screen controls that can be adjusted but they rarely need it.

If the picture is yellow looking it could be interpreted as too bright.

If good black and white picture---stand back ten feet when you examine it---I can tell you how to adjust the sceen controls, not real easy but can be done with someone to watch screen.

I am here to help you and I have over 30 years experience with all kinds of TV sets.

Is black and white picture somewhat YELLOW LOOKING?

iF THIS INFORMATION TOLD YOU SOMETHING YOU DID NOT know rate this solution as very helpful as I do this here for free.

If you have more information or need help comment here to this solution.

REGARDS, SD TECH

Aug 13, 2010 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Old magnavox 52 inch big screen tv - screen rolls, jumps, loses c


the screen on my hdtv has alot of marks on it how do i get another

Feb 26, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Picture getting darker


first thing i would look at is it is probabily dust on the lences and miror, you need to take the screws out all the way arount the screen from the back, then lean the screen out tward you from the front, do this while the tv is on, you will be able to see the dust alot better, take a soft cloth and glass cleaner and clean little miror, and lences

Jan 07, 2009 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

The picture is not very bright


Good Day;

If this is a rear projection you may need to clean the lenses and mirror and try adjusting the contrast. If it is a direct view your picture tube maybe going soft (bad). If it's a Phillips/ Magnavox change CRT coolant.

Good Luck, big IRISH.

Sep 25, 2008 | Televison & Video

1 Answer

Screen Brightness


Your ballast may not be up to 100% of its rated capabilities, thats often the cause when the brightness level gets to unwatchable levels. You may need to troubleshoot the ballast voltages a defective ballast can usually cause a lamp to loose about 60 % of its brightness levels. The other possibility could be the DLP mirrors need polishing but that is something better left to a repair shop as the DLP mirrors are sensitive

May 02, 2008 | Panasonic PT-43LC14 43" Rear Projection...

1 Answer

UNABLE TO BRIGHTEN PICTURE


Your CRT coolant needs to be changed. Thats whats giving you the dim picture. You can also clean the projection mirror on the inside this often helps. But the coolant will need to be changed to get back the bright crisp picture. Hope this helps.

Jan 20, 2008 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Rca home theatre big screen tv


# 1 above you have covergence problems ,there is a service flash from rca to fix your fault,ask your tv shop. fault # 2 above turn off the color and adjust your screen settings for a grey picture,set brightness and contrast to middle settings. # 3 fault read #1 cause if your auto focus will not correct you require service there is a harness connector that looses connection and causes several fualts on the 52" rca's you can repair the fault but if you miss the harness replacement you will do it again.

Dec 01, 2007 | RCA 32F531T 32" TV

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