Question about Mitsubishi WS-65907 65" Rear Projection Television

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Coolant leaked from the green bulb

We had the pinstripes going and then we lost the total picture.

The tech we had out said that the green bulb lost "coolant", (I could see it sitting on the panel below) and apparently shorted out the IC convergence and mother board.

First, is this a correct diagnosis?
Second, how often does this happen?
Third, the TV was manufactured in 2000, are there still parts available for it?
Fourth, is it worth fixing?

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Yes, the diagnosis was correct. Some models of Mitsubishi as well as a few other manufacturers have had issues with this. The cost to replace circuit board damaged by the coolant (ethylene glycol) along with the affected CRT is prohibitive. Check with Mitsubishi. Some manufacturers acknowledge problems such as this and may offer assistance.

Posted on Feb 14, 2009

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1 Answer

Green light bulb that projects light to my screen I believe is leaking and shuts down the tv after 20 minutes


That is not a light bulb. That is a Cathode Ray tube. You are leaking tube coolant and that means the seals on all 3 cathode ray tubes are going bad. This is something that can be repaired but you need a qualified tech to do so or the TV can be easily ruined.

Jul 11, 2015 | Mitsubishi WS-65413 65" Rear Projection...

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I have a samsung pcj612r rear projection tv. It recently started making a popping sound and the picture started going in and out as if the signal was being lost intermittantly. It is a very fast in and out...


That sounds like a component failing when it warms up, could be a capacitor. Would need to be taken to a tech for a setailed diagnostic. If the TV is good enough and you are happy with it, it may be worth having a tech change the coolant in the green and blue guns, realign it etc. The unit should come back to like it was when new. But it will cost you at least $250.

Dec 27, 2014 | Projection Televisions

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I took the back of the tv off and the blue lamp is not bright like the red and green. Could this be a coolant problem or lamp. I have the PT5492S Akai rear projection TV.


The blue is usually dimmer than the other two lens; what I would suggest is try to look into the lens with the set on; BE CAREFUL AND NOT TOUCH ANYTHING INSIDE THE SET.

If the red and green show a picture but the blue looks like a floodlight you have bad Glycol in the blue tube (common in these sets).

If all have a normal picture remember to wipe the lens clean at the top; do not try to take the lens etc apart.

Before you rate this information let me know what you find.

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Aug 15, 2011 | Akai PT5492S 54" Rear Projection...

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The color green is almost totally nonexistant. Ie while watching a baseball game, the grass is brown. If I adust the color from the menu screen all the way to the maximum, the grass becomes slightly bluish...


Two possible reasons here:

1) Does it look the same when you play a DVD etc or is it just with the sat receiver? If the same either way signal is not the problem.

2) On the set, turn the color all the way off and go if you can find one to a channel that is in black and white---What color is the screen? It should be something like a black and white picture.

The model indicated has a long history of problems with the three picture tubes.

If the picture is not black and white etc there is a manual way (not with the remote) to try to adjust for this---depending on your answer to the above I can tell you exactly how to do this---takes about 10 minutes and a Philips screwdriver---you do not have to be a tech to do it.

If I have told you something you did not know, rate this solution as very helpful as I do this here for free.

SD TECH

Aug 13, 2010 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

TV blinks green then shuts down


absolutely, and if he spilled any of the fluid on the parts below the tube your looking at bigger headaches down the road, the coolant fluid is very caustic, stop running your tv and get a tech to check out your set right away, video-tek

Jun 07, 2009 | Akai PTH5498 54" Rear Projection...

1 Answer

How to change crtfluid


Only a qualified service tech should replace coolant fluid. I've serviced TV's for a good while, and I would not attempt this repair without a co-worker showing me precisely what to do. You have to remove the Picture Tube(s) to do this, and if they leak after assembly, your TV circuit boards could be totalled out. The coolant is similar to anti-freeze and is corrosive.

Apr 13, 2009 | Philips Magnavox 51MP392H Rear Projection...

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Red and green pinstripes!!!


If the fluid hit the circuit boards, the problem has gotten worse. The loss of fluid wont hurt the CRT, but the boards don't like liquids at all. In lucky cases, you can clean up the fluid and it will work again. CAREFUL the fluid is toxic and cancer causing. Clean it safely, wash hands after touching. If cleaning doesn't help, you will need to repair the board and possible re-seal the CRT.

Oct 23, 2008 | Mitsubishi WS-65907 65" Rear Projection...

1 Answer

No picture, just red-blue-green lines through the middle of the screen very faint.


The PT-53WX54 is a standard projection set and does not have a bulb. It has 3 separate picture tubes. If you have lost the picture completely, not even on-screen menu, then something has stopped working in your set. It could be a video processor, vertical deflection or possibly a convergence problem. The set should be serviced by a qualified tech familiar with the Panasonic projection sets.

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3 Answers

Green Picture


I guess it's missing blue. Even if you see the blue crt working it's not enough and focalised. replace the coolant in it and also check if you have some coolant leak on the crt pcb.

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