Question about Philips MX5471C 54 in. Rear Projection Television

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Directions on replacing coolent

Need directions on replacing coolent on a philps MX5471C 54 IN. REAR PROJECTION TV

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Re: directions on replacing coolent

  1. Must be careful, projection coolent must not get on circuit board. It will short out. You must have a pump to suck coolent out of tv. Use alot of towels to catch dripping fluid.
  2. first take off lense
  3. then take out drain plug
  4. suck out coolent, be sure to either raise tv up to level off or have towel out to capture all fluid lost.
5 then when all out, clean all parts with windex or glass cleaner.
6 check gasket if bad replace.

7 refill with new coolent, remember to fill all the way.

Posted on Dec 01, 2007

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If you're NOT still under warrantee you should at least open the TV and look for a blown fuse near where the power cable enters the set. A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace.
Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs.

You can also check the board where the components are mounted and resoled any that look bad. Brief power outages may cause the TV to turn off on its own. If you are using a surge protector, try connecting the set directly to the wall outlet.

In your case it could caused by a blown fuse, a leaky diodes or a bad solder joint at the horizontal drive transformer.
All can be replaced at a local electronic or hardware store and they're easy to replace

If this does not correct the problem, you may need to have your TV serviced.

good luck!

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