Question about Philips 9P5544C 55" Rear Projection Television

3 Answers

How do I replace the tv coolant in my projector tv, or what web site can I go to to find out? I received my tvrepair kit and coolant and downloaded the instructions for my repair kit lost the website to replacing fluid, thanks.

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  • ronpen42 Aug 04, 2010

    My tv is a 60 or 62 inch Philip Magnavox 2000 Model 9P5540c140 I don't know why they sent me information for a 55 Inch. Does it make a difference or should I have exactly the size I'm dealing with? Still trying to figure out how to refill color tubes,I have tv coolant and I am on stand by ready to go. Thanks.

  • ronpen42 Aug 04, 2010

    I need to know if the info your giving me to fill the tv coolant is the same on a 60 inch as it is on a 55 inch Philip Magnavox? They keep sending me info on a 55 inch my tv is a 60 or 62 inch, model number 9p5540c140, thanks.

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3 Answers

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  • Master
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Here are the instructions:
http://www.riddledtv.com/journal/CRTCoolant/

Posted on Aug 04, 2010

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  • Philips Master
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Hello,Follow the below instructions:
Accessing the Coolant: Turn on the television and run the convergence program. This system aligns three colored cross hairs to balance the color of the set. Refer to the operator's manual for your rear projection TV for instructions on accessing this program
Unplug the television from the electrical wall outlet.
Pop off the bezel on the front screen of the system. Place your hands on the outside frame of the screen and pull gently back to remove the bezel.
Pull out the three combined screens from inside the set. Secure the screens together with cellophane tape, and set them aside in a safe location.
Remove the circuit board from the bottom section of the unit. If necessary, remove any securing screws with a screwdriver. Silicon adhesive might hold some model boards in place. Slide your fingers under the board to release the adhesive. Pull up on the circuit board carefully. Do not allow the board to bend or twist; the board will have wires attached.
Use a large side cutter tool or pliers to disconnect the large red wire from the circuit board to the high voltage transformer. Rock the tool back and forth while pulling up to release the fastener on the wire.
Disconnect the wire bundles attached to the board. Pull up on the wire harnesses to unplug them. The circuit board will now be free from the machine.
Slide a small screwdriver under the tabs that hold the ground connectors in place to release them.
Remove the screws holding the CRT assembly in place. Pull the CRT assembly out of the machine and set it away from the circuit board to protect the individual components.

Refilling the Cooling Solution:

Pull out the filler plug on the solution container. Take care not to lose the O-ring attached to the plug.
Use a suction device, such as a vacuum tube, to empty the old coolant from the container. Collect the coolant into an empty, plastic container for disposal.
Pour fresh coolant into a clean, plastic squeeze bottle and use the bottle to refill the chamber in the TV. Fill the chamber to the top and insert the filler plug.
Reassemble the TV and connect the wiring. Reverse the steps used to disassemble the TV when putting it back together.
Turn the set back on, and open the convergence program again.
Locate the centering tabs for the CRT screens in the back of the unit. These tabs allow you manually adjust the convergence. An initial manual adjustment will be required with new coolant. Use the tab to center the cross hairs on the screen by sliding them up or down and right or left.
Good Luck.













Posted on Aug 04, 2010

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  • Philips Master
  • 14,553 Answers

FIRST: examine each of the three picture tubes with the set on by looking in the lens of each.

The problem here is the coolant (GLYCOL) BECOMES CONTAMINATED WITH BACTERIA. Usually you will find the BLUE and or GREEN tubes have this problem---almost never in the red---the bacteria does not like the red.

To do this yourself you face several problems:

1.) The Glycol is very toxic----like antifreeze----wear rubber gloves and do not get any on you as it can be absorbed in your skin.

2.) Once located the contaminated tubes MUST BE REMOVED from the set ONE AT A TIME. You unplug the set, unplug the circuit board at the bottom, you remove the large red wire (High voltage lead) for one from the block where it is plugged in, you will find two plugs with 4 or more wires----one is the deflection yoke and another the convergence yoke.

3) With the yokes and the HV lead disconnected you will find some ground wires with clips or screws; once they are removed the tube is secured with 4 bolts from the top(not the ones around the lens---do not remove the lens!) and the entire tube lilts out with plugs etc still attached.

4) Look first to see if only the BLUE is bad---with the set on look into the lens--you should see a red, blue and green picture---if blue looks like a "Floodlight" with no image, it is the one to remove first----loss of blue in this way will leave you with a yellow looking picture.

5) With the entire tube removed----there are four large bolts; I usually do this with it in a sink or plastic tray---remove the bolts and NOTE WHICH WAY THE LARGE RED WIRE ETC FACE relative to the bracket---the four bolts hold a metal plate which secures the picture tube to the lens; do this with the lens facing down.

6) With the bolts removed gently pull the entire picture tube loose from the bottom of the lens----Glycol is going to spill out when you do this---there are two gaskets---one where the tube meets the bottom of the lens and another between the housing and the top of the lens.

7) This is where it gets interesting: You remove and discard the glycol---it should be placed in a toxic dump etc---some idiots wash it down the drain---water dissolves it but I usually funnel it into a plastic bottle and get rid of it correctly.

8) You are going to have to wash the face of the tube and the lens area where the glycol was with hot water; The contaminated glycol will look like slime and you must wash all of the inside and the face of the picture tube completely.

9) I usually use compressed air and dry everything after but you can use paper towels----wear the gloves as this stuff is 10 times more toxic than antifreeze.

10) REFILL THE AREA THAT HELD THE GLYCOL ALL THE WAY TO THE TOP(MAKE SURE YOU ALSO WASH THE GASKET YOU REMOVED FROM THE FACE OF THE TUBE). With the glycol full and the gasket in place place the tube back in exactly the same position it was in relative to where the red wire (anode) was.

If you are lucky, only the blue tube will need to be done but one more real problem remains----with the tube put back etc make sure you have no leaks when you lift and tilt the complete assembly around.

Reinstall the tube and put the plugs, wires etc all back.

Now, with the set on two things----look to see if the problem is resolved AND YOU ARE GOING TO HAVE TO GO INTO THE CONVERGENCE MENU WITH THE ORIGINAL REMOTE AND ADJUST---any slight change in position of the tube etc will make the convergence off.


READ ALL THIS CAREFULLY AND IF YOU HAVE QUESTIONS LET ME KNOW before you begin. THERE ARE PITFALLS HERE TO AVOID----Do not just remove more than one tube at a time!.



I am here to help and I have done this repair many times---the Philips sets are prone to this problem!.


SD TECH

Posted on Aug 04, 2010

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Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


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

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Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


Problem #2 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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


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

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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. 

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

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