Question about Philips 55PW9363 55" Rear Projection HDTV-Ready Television

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Bought this tv used it was working great before I brought it home now the picture is cloudy what to do? It is like everthing has a white glare around it.

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You stirred it up....literally! The projection tubes have sealed chambers and lenses, the chambers are filled with a coolant responsible for cooling the projection tube surface, so the tubes can operate at the high levels necessary to project nice bright images on the screen. That coolant unfortunately becomes contaminated over time, causing the coolant to become "cloudy". Moving the set stirred up the contaminants, allowing the set to sit idle may settle some of the "yuck" back down but the only sure cure is to replace the coolant. The coolant is Glycol based, and therefore is poisonous, much as automotive anti-freeze is, and the old should be recycled in a similar manner. There are many electronics parts outlets such as MCM Electronics, that sell projector coolant if you wish to attempt replacement yourself. It can be a very messy job. It requires a small turkey-baster of sorts with a small hose attached to extract the coolant. Myself I saved a squeese bottle from one of the wife's hair coloring episodes to which I attached a clear piece of aquarium line.That worked pretty well. I suggest that before you start the process that you cover the tv chassis to prevent any of the coolant from contaminating the circuits below the tubes. Otherwise you may turn the set into a giant paperweight.
Post back if you have any questions.

Posted on Feb 03, 2010


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Bottom half of screen cloudy

Sounds like the GOOD news is that it has to be the display anti-glare shield, and not the display itself. [You may even be able to look "down" on the display and see clear characters that are hidden behind the lower cloudy shield. The two likely candidates are: a) the shield surface, or b) delamination of the shield.

You have probably already tried this, but first try cleaning it with a soft cloth dampened with a little dish soap. Rub gently. [Did anyone get near this display with window glass cleaner perhaps?]

The surface can be cleared (if that's where the problem is) with some non-glass optical rubbing compound. I like something called Micro-Gloss. For an area this small, you can just use your finger tip and rub the white liquid around (and around and around...). It will hurt the "anti-glare" quality - but that's better than not being able to read the information at all.

One concern... since the problem is only on the lower half, *if* the plane has been parked for years in the hot sun, it may be actual breakdown or delamination of the plastic. [Try pressing gently on the cloudy surface and see if it makes any difference at all, right where you are pressing.] If that is the case, then your pretty much stuck needing a new plastic faceplate over the display. That *should* be a 50 cent part, but it's connected to an airplane, so...

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I have a glow or a shadow around everything I watch...I tried the converse blue but i dont know if i did it right bc it didnt can I fix that?

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. Notice how dull the colors are and how white the screen looks. The screen may also look red, orange, dull, etc.


TV set after fluid change. Notice how bright the colors are now. Everthing looks crisp and sharp again.


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc.

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Excessively bright whites...has a haze around any white items. all other colors are fine.

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 white,dull, red/orange, etc. You may even see white halos around images.

Here is a photo of a set that needs the fluid changed.


TV set after fluid change



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

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1 Answer

Blue Glow

Chad, sounds like "FROGGY" coolant to me, Philips brand tv`s are infamous for this problem usually the green & blue tubes, you can confirm this by removing the back cover (carefully it`s heavy and has a large mirror attatched to the inside) turning tv on and look directly into the red lens, you will see a clear image, now look into green & blue and there probably very cloudy. Bad news is this is a very long, dirty, job and very diffiicult for a layperson, if you want to attempt it you MUST buy the service manual (any tv shop can order it for you) I would also advise you to NOT buy philips fluid as the **** they sell will become cloudy again (I use RCA cause it works and it`s cheap) good luck if you attempt it, I would advise you to calll a tech, video-tek

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The STK ics, two of them, can be purchased on line for around $20 to $40 each.

Partstore has two models available - one for around $40 and another for around $55.

The part number is STK392-110 and if you google you can find them for as little as $6/each but I don't recommend the cheap ones as they are not reliable.

It takes a good tech around 3 or 3 hours to take the old ones out and solder in the new ones. Also, it is likely one or two resistors are burnt and will need replacing as well.
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