Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television

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Lens cooling oil

Is my cooling oil serviceable ,there to be some cloudiness in the picture and was told to change the oil in the canasters and clean the this possible on this model and if so what do i use to replace the oil and clean the lens.??

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CRT Fluid you can find at places like and more info at

Posted on Dec 25, 2007


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3 Answers


The lens is not sold separately, you must replace the whole assembly. This assumes you are talking about the headlight lens.

May 24, 2012 | Cars & Trucks

2 Answers

The picture are cloudy

Hi try to check the lens glass if there's a moisture or finger print. sometimes this is the cuase of cloudy picture. try to clean by soft cloth without any liquid and make it sure be gently while you clean it to prevent from scratch.

if the problem still occur try to reset you camera to default maybe your setting is wrong or not good for the specific scenery.

if still occur you have problem inside of the lens unit and you need to bring to service center for estimation first before you proceed to repair.

thank you and good luck my friend

Jul 17, 2010 | Nikon COOLPIX L20 Digital Camera

3 Answers

My son touched the lens and now it is cloudy. I tried cleaning it and it's a bit better, but too cloudy to take a pic. Any suggestions?

How are you cleaning it? You should only use photo lens tissue and photo lens cleaning fluid. Or better still, use a micro Lenspen. Can be purchased on the internet at sites like

Feb 21, 2010 | Canon PowerShot A470 Digital Camera

2 Answers

Cloudy picture on Philips Rear Projection TV

There is clear fluid in the 3 color tubes to keep them cool. The fluid is simular to antifreeze. Try an ebay search for "TV COOLANT". You have to make sure not to spil ANY on your board or you will be very upset. This is oil based and will ruin the board "CAN NOT BE REMOVED". What clouds these TVS up is bacteria growth. Normally it can not survive under the red lamps. Blue is the main one to cause this. To check for growth, you have to look in the lens when it is on. You will see small spots. Once open you have to wipe and clean the spots off before adding new fluid. Fluid is very cheap. A shop will charge a couple hundred to change each tube. Use 100% silicone around both sides of gasket before resealing. Also lay a plastic garbage bag under the lamp for a few days with a towel on top of that. IF you have a leak, this will keep it off your boards. A trick to doing this easily is lean the Tv foward so the lamps are level and use a turkey baster to **** ALL the old fluid out. You can also use any type of suction tubes.

Dec 01, 2009 | Philips Televison & Video

1 Answer

White cloudy spots on my images - a recent problem

If these are like "bubble" spots and they appear in different places on each photo, I'm guessing you're shooting flash pictures indoors. The spots are dust particles in the air reflecting the flash. This happens on small point-and -shoots because the flash is almost in the same plane as the lens.

Nov 10, 2009 | Canon PowerShot SD780 IS / IXUS 100 IS...

1 Answer

Picture is cloudy and wont come in clear

has it been inspected for proper lens and mirror cleaning? or by cloudy you are referring to some kind of weak signal. when the cleaning is needed the picture comes in dim but with definition and the correct color, tint though gives the impression is to bright or very low in contrast.

Aug 12, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Blurry out come

Hi George

It sounds like a lens issue... Try:
1. cleaning lens (carefully!)
2. Could be condensation I suppose. Unlikely but make sure its fully warmed up and dry.
3. It could be a lens element misaligned possibly due to impact damage. Needs pro repair then.
4. Just a wild thought - it's not been left permanantly in some close-up mode giving a very out of focus effect?

Hope this helps,

Jun 21, 2009 | Olympus ? 1030SW Digital Camera

3 Answers

Cloudy looking water

Does it do this when you DON'T add any of the fragrance oils???? If so, it's yuck from the air. BUT, the fragrance oils are OIL and they don't mix with water, so as it swirls it tries to emulsify the oils into the water and that causes it to become cloudy.
I would still clean it at least every other day....every day would be preferable....especially if you live somewhere that mold flourishes like I do (Central Texas)

Oct 10, 2008 | Rainbow Rainmate Air Purifier

2 Answers

Maintanence question obout my Sony rear projection.

i,m not a tech but i,ve been told by a techinican that those tubes do have fluid and it,s not an easy fix to change the fluid i was told the tube has to be removed and a tech told me it would run around 200.00 by the time the tech removes it puts the fluid back in and reinstalls it and after it,s reinstalled the convergance has to be reset that,s what realigns the colors back to their correct position and i,ve heard this isn,t an easy job so i,d probably get a techinican to fix it but that,s up to you someone might have an easier opinion but the tech i talked to is one of the best thanks and maybe you can help me i have a blue tube on my big screen tv that wont light upcould you give me some insite as to what you know about a projection light that you said that may need changed think that may be my problem your welcomed to call me about this at 270-566-4327 anytime soon as possible thanks

Nov 26, 2006 | Sony KP-51HW40 51" Rear Projection...

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