Question about Hitachi 50FX48B 50" Rear Projection Television

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Picture and sound went out at same time.

The picture and sound went out at the same time.

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The projection lamp is gone and needs replacement. The lamp typically lasts about 8,000 hours on high end models and 1,000-2000 hours on cheaper models.LED technology based lamps lasts for about 20,000 hours. Operating the TV in a warm environment without enough ventilation or at high elevations reduces the lamp life. Setting the color or contrast to a lower level increases the lamp life.
Here's how to replace the lamp:

  1. Turn your TV off. Let it sit there for about 5 minutes to let the cooling fan help cool the lamp.
  2. Unplug your TV from the power let it sit about another 30 minutes.
  3. Usually the lamp has a cover that you will need to unscrew. Most manufactures use a Philips head screw for holding the cover shut. Unscrew the lamp cover.
  4. Unpack the replacement lamp. Be careful not to tough the glass, as oil from your fingers can damage the lamp's surface.
  5. Pull the lamp out. Most lamps have a plastic tab or hoop on the handle that you can use to pull it out. Follow the owners manual for specific instructions on how to pull the lamp out. Make sure you do not touch the surrounding lamp housing if you just turned off the TV. It can burn you if it is hot.
  6. After the lamp has cooled, place it into the empty box of the replacement lamp. Never put the used lamp into a plastic bag.
  7. Using the guiding post also called "gutters" by some manufactures slide the lamp replacement lamp in pushing it until you hear a firm click.
  8. Screw the lamp cover back in.

Posted on Sep 26, 2009

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