Question about Philips Magnavox 9P6034C 60" Rear Projection Television

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UNABLE TO BRIGHTEN PICTURE

I HAVE HAD MY TELEVISION FOR ALMOST 11 YEARS, AND OVER THE LAST FEW MONTHS THE PICTURE SEEM TO HAVE GOTTEN DARKER AND UNABLE TO ADJUST COLOR. WHAT CAN BE MY PROBLEM. I HAVE BEEN TOLD TO GET RID OF TV, CAUSE IT WILL COST MORE TO SERVICE; AND I WOULD BE BETTER TO GET A NEW ONE

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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.

Posted on Jan 20, 2008

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Posted on Jan 02, 2017

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Why is my picture darker than normal


It may be the backlighting has been readjusted by someone other yourself. Whenever you go on battery, I'm sure you've seen the screen darken a bit. This is the backlighting being turned down to save battery life. There is usually a blue function "fn" key that allows the user to brighten or darken the display. Look at the blue icons in the F1-F12 keys. The one to brighten the display looks light a sun and the one to darken the display looks a full moon eclipsed. Press and hold the fn key and tap the desired function key to brighten or darken the display.

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In many many cases this is an indication of a failing picture tube. The gun assembly in the neck of the picture tube is shorting. There is a fix, but this is surely last resort and the final cure may not provide a fix. Picture tube rejuvenation is not always successful. I would certainly opt for a new TV. Thanks for asking, and show a few hands of support!

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My picture is getting darker and I can't brighten it up enough . would all the lamps be going out or what ever power them up be going bad.Any voltage checks be performed??


this set is over 11 years old now. All RPTVs have three CRTs light guns that create's massive static electricity. if this sets lenses and mirror have never been cleaned, this is why its getting darker. there is probably a massive build up of dust/dirt and grime on the light guns and mirror. clean these and it will perform like new again.

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you need to replace the coolant in thr CRTs( picture tubes) Vert common problem in phillips. You can get the enitre repair kit at the following link which has the coolant and instruction CD for phillips coolanrt change. Heres the link its under the repair kit section.
http://servicemanuals.vstore.ca/

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The tv has a room light sensor,
shine a bright light at it , does picture get brighter?
other wise when it is cool open the bulb door , is it coated or blackened, Don't touch bulb at all.

and a heavy covering of dust on internal mirrors will cause the same effect.
you will need help to clean it.

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I think you are right about the backlight. You need to replace the backlight tube or, if you can, replace the TV. Good Luck.

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Picture is getting darker and darker


if the tv has never been service before you could have dust on the 3 tubes,this will decrease the brightness to the screen. try taking the front or back off & see if you can see the top of the picture tubes. remember to unplug the tv & to clean spray the cleaner on the colth , then clean the tup of the tube. never spary on the tube itself. hope this works for you.

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