Question about Philips 51PW9303 51" Rear Projection HDTV-Ready Television

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Coolant Where do I find the coolant for the tv? What kind of store?

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The coolant is clear ethylene glycol and can be purchased at any electronic parts store or online. Look up "projection tube coolant". Usually you can get by with only changing the liquid in the blue and green tubes, and be prepared for a messy job. You'll need a small bucket to drain the tubes into and make sure to pour a straight stream to avoid liquid getting into lenses. Just take your time and this repair is very simple to accomplish. Also, I use a marker all the way down the side of the tube and on mounting frame to assure that I don't get it turned around when reinstalling. Make sure you clean inside of coolant chamber thoroughly. Good luck, Russmann.

Posted on Jul 29, 2008

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Can any type of coolant work if not please tell me what kind

You can only use Glycol. Most places just call it TV coolant.

Jun 29, 2011 | LG Projection Televisions

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We have a Phillips rear projection tv, about 9 years old. The color has been getting progressively worse over time. Dark scenes are almost impossible to see. It almost seems that only blue and red are...

Tv have halo pictures and dulls colors?Yes,the tv have bad Coolant chemicals on those colors guns R,G,B CRTS tv Tubes.Must replaced those CRTS Coolant chemicals on those CRTS tv tubes.Tries websites like, to buy a Coolant kit to replaced those CRTS tv Tubes coolant chemicals.

Nov 13, 2010 | Philips 55PW9363 55" Rear Projection...

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Picture is not bright enough, very faint, and cloudy. Appears as if the bulb is not bright enough or something. It has not been replaced recently. Cleaned the filter, checked settings. Does the bulb...

The coolant inside each of the tubes need to be flushed cleaned and refilled.Over the years of the TV's use, the coolant gets cloudy from heat. usually this kind of service can range from $350-$650+ dollars. Its not an easy job... Call your local TV repair professional to find what they charge to refill coolant. You can CLICK HERE to find a TV repair professional in your area, just type in your zip. 'best wishes'...
'if this helps you please rate, its like a donation :-)

Oct 26, 2010 | Mitsubishi WD-52525 52" Rear Projection...

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Almost 10 yrs old, kind of like a slight fog over the picture. what do i need to do?

Ur tv need coolant replacement.Tries websites Tv repair, to buy this coolant replacement.

Mar 10, 2010 | Philips 50P8341 50" Rear Projection...

1 Answer

Convergence bowed


the coming out is glycol oil (coolant). If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages.

Looks like a picture tube problem.
Try to reduce the contrast, maybe it will be better.

Look into the three tubes while the TV is running, and observe the
picture quality of the three. If the red and green are crisper and clearer, and the blue's all hazy from bacteria growing in the coolant, then the fluid needs to be replaced. The CRTs of the colors that seem hazy need to be removed from the light box to be
serviced. The coolant needs to be drained, the CRT assemblies
disassembled and totally scrubbed clean and refilled, then reinstalled and converged. If the coolant is
clear, it can be a weak CRT.

Also the convergence STK ships might need to be replaced, and the soldering checked.

Good luck

Jul 08, 2009 | Samsung PCJ612R 61" Rear Projection...

1 Answer

Leak in crt of rca hd52w59 projection tv

The coolant is a special optical grade coolant. It can be replaced but its a detailed job. You can get replacemnt CRT coolant at the following link . They also have replacement CRT tubes for your model which contain the coolant already installed. They also will offer any assistance that you may require doing the actual repair.

Jun 13, 2009 | RCA R52WM24 52" HDTV Projection Television

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Sony rear tv projection fluid leakage

it is a glycerin based fluid. most good electronic supply houses have it.
projection tv coolant 1915-16SQ - Techspray

Jan 08, 2009 | Projection Televisions

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Phillips 55 in. rear projection tv

you will need to replace the coolant. there isnt any sensors there, But if thos CRTs happen to light without any coolant the CRTs will be cracked and if that happens you will need new CRTs. hen

Aug 03, 2008 | Projection Televisions

1 Answer

Changing coolant

I would recomend the service manual as they explain how to change the coolant, then re-align everything once your done. I would change the blue and green. Red never seems to have an issue with the coolant . I believe it has to do with the color spectrum. You wont need any special tools. The service manual will explain the safe way to discharge the CRTs as they can store energy till they are properly discharged. I will psot a link where you can get the service manual emailed to you if you would like. I work for that site and the service manuals are great, cheap prices and they offer free tech assistance. I am one of their techs. Let me know if you would like the link.

Mar 16, 2008 | Philips 43P8341 43" Rear Projection...

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Samsung PCJ-522R

hey john if you look into the blue crt it will be very foggy..the coolant in the crt needs changing. you may want to contact a local tv repair person for more advice and coolant changing procedures....john

Sep 01, 2007 | Samsung PCJ522R 52" Rear Projection...

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