Question about Akai PT4298HD Rear Projection Television

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Fuzzy blue Where can I get glycol? I assume that it is different than the coolant in a car, or is it the same...? Are there any step by step guides to help me through?

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No...glycol in the tv is not the same as in the car.. for one thing it is clear. i am not to sure where to purchase some. in the shop we get it specifically from the manufactor of tv. i would think there is not much diference in it though. Step by step humm...akai or samsung really dosent recommend this so i dont believe they ever gave a step by step.. but of coarse i once had a samsung tech tell me " GLYcol Dosent go Bad"..i cant count the amount i have replaced.. it basically invovles removeing the effected tube. blue if i remember you problem right. there is some basic literture that i might be able to send you... email me at [email protected] i wil try to get you some disasembly instructions

Posted on Mar 21, 2008


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Dptv335 model number#60pp9363H/17SAM Mode Green Convergence

Your Green CRT is getting Mold in the glycol. This will get worse. You need to drain the glycol out of the crt and clean, then apply new glycol to the crt. You should do the blue one also, because it will go next. The Red can can be left alone.

Mar 20, 2013 | Philips 60PP9363 60" Rear Projection...

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I have just recently purchased a BMW ci328i and do not yet have the manual. The coolant sign is starting to flash up on dash. What coolant can I use?

There are many different coolants and if you mix 2 different ones together they can react and turn into a gel which don't do the car much good! the best way is look what colour coolant is in the system already and as long as you use the same colour coolant it will be fine, main colour coolants are green,blue pink and orange, green and blue can be mixed together as can orange and pink but Pink cannot be mixed with blue or green, i would guess the coolant in your car will be the pink stuff but please check 1st, hope this has been usefull to you.

Jan 09, 2011 | 2000 BMW 3 Series

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I need step by step instructions on how to

1990 Cadillac Deville 4.5L FI 8cyl Repair Guide

Never open, service, or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. In addition, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

4.5L and 4.9L Engines
  1. Drain the coolant to a level below the thermostat housing.
  2. It may be necessary to remove the upper air filter assembly on some models.
  3. Remove the 2 bolts securing the upper thermostat housing to the lower housing.
  4. Remove the upper thermostat housing.
  5. Remove the thermostat and O-ring from the lower housing.

Fig. Thermostat installation-4.5L and 4.9L engines

To install:
  1. Install the thermostat and a new O-ring to the lower housing.
  2. Install the upper thermostat housing to the lower housing. Tighten the thermostat housing bolts to 20 ft. lbs. (27 Nm).
  3. Refill the cooling system using a 50/50 mixture of water and ethylene glycol antifreeze.
  4. Start the engine and check for coolant leaks. Allow the engine to come to normal operating temperature. Recheck for coolant leaks.

Hope helps with this (remember rated this) Good luck.

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1 Answer

How do I change the CRT coolant in my TV?

I presume you know about Glycol problems these sets have---This is not a job for most people to attempt--the coolant is Glycol---much more concentrated and toxic than antifreeze--

Usually if it is bad it is contaminated with bacteria--the most common is the blue tube--way to tell if it is bad is simple---with back off use a mirror and have the set on---YOU NEED TO BE VERY CAREFUL NOT TO TOUCH ANYTHING--with a mirror look into each of the 3 lens---you should see a clear picture in the red, the green and the blue lens--if the blue or green look like a floodlight with no picture--the Glycol is bad.

You can buy three pints on Ebay (I can tell you the seller there)

The real problem is two fold---say it is the blue picture tube--you have to remove the tube---it will have a High voltage lead that plugs into a splitter, it will have at least two other plugs and some ground wires--you have to get it out of the set and then separate it from the mounting(4 bolts)

The Glycol in the sealed area has to be dumped out and the area washed with hot water----THIS IS TOXIC MATERIAL! Once the face of the tube and the sealed area are washed clean--you have to fill the sealed area completely with fresh Glycol and mount the Tube back and then reinstall it into the set. Usually you have to seal the gasket with RTV before you add the Glycol.

At this point with the tube reinstalled you are going to have to do major convergence adjustments--if the tube is not exactly put back in the exact same physical position--blue is going to be out of convergence.


IF YOU get any glycol on your hands it will be absorbed into your body---the Glycol makes antifreeze look like water--very toxic stuff.

LOTS of the Philips set had this kind of problem--usually if the blue is contaminated the picture will have a yellow look (lack of blue means red and green give you yellow.)

Let me know if you have questions---Do not Attempt this unless you understand the risks and danger involved----this is the reason these sets cannot in most places be disposed of in a dump.

Regards, SD TECH

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What color has to be the coolant of my car buick 2001 ?????

get some DEX cool antifreeze....its compatable with any other coolant

Aug 16, 2009 | 2001 Buick Century

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Engine coolant mixing

Would suggest contacting the dealer just to verify, don't want to put in the wrong fluid and risk damaging your engine or anything else.

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Fuzzy blue

are u a tech? if you going to replace the tube i dont feel there much difference. both involve remove tube and puting back in and adjusting...just that glycol change is cheaper than the whole tube replacement. a little more work. have u evere changed a tube

Mar 14, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Fuzzy Blue...?

these set are bad about the blue tube messing up.. what happens is the convergence board witch generates alot of heat cooks the blue glycol.... basically growing algea in the blue tube... it is possible to remove the tube.. and remove glycol and clean the tube then replace and adjust..i have done a few here at the shop

Mar 14, 2008 | Akai PT4298HD Rear Projection Television

5 Answers

Need to replace the glycol oil (coolant) in our rear projection tv

You can get The Picture Tube Coolant at the link here Matt electronis. they offer quick shipping, And if you need instructions on how to do the proceedure , please let me know

Jan 12, 2008 | Televison & Video

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