How to Change the Lamp in an Hitachi Ultravisionby Steve Lander
Like many projectors, Hitachi Ultravision units use a high-pressure arc lamp that has a finite life. To maximize your projector's performance and avoid having the lamp blow up inside the projector, it's a good idea to replace the lamp when the projector alerts you to do so. Replacing the lamp and the accompanying air filter is a simple procedure that takes just a few minutes once the projector has cooled down.
Replacing the Lamp
Unplug the projector from the power source and allow it to cool for at least 45 minutes.
Set the projector on a work surface and flip it over so that the bottom panel is facing upwards.
Unscrew the Phillips-head screw securing the lamp cover. The cover is located diagonally across from the lens, and the screw has an arrow pointing to it. Once you've removed the screw, slide the lamp cover to release it, and then lift it away. Set the cover and screw aside.
Unscrew the two flat-head screws fastening the lamp assembly in the projector; these screws are also marked with arrows. Save the screws.
Lift the lamp assembly out of the projector using the handles. Be very careful not to break the lamp -- it is fragile and filled with toxic mercury vapor.
Insert the new lamp into the channel in place of the lamp you just removed. Tighten the two screws to securely mount the lamp in the projector.
Slide the lamp cover back onto the projector and secure it with the lamp cover screw.
Reposition the projector, plug it into an outlet, and press the "Power" button to turn it on.
Press the "Menu" button to activate the projector's on-screen display menu.
Activate the "Advanced Menu" by scrolling down to the "Go to the Advanced Menu" option and then pressing the "Right" arrow button on the directional pad to activate it.
Scroll down to the "Option" item on the Advanced Menu and select it by pressing the "Right" arrow button.
Scroll to "Lamp Time" and press the "Right" arrow to activate it.
Press the "Up" arrow to reset the lamp timer.
Replacing the Air Filter
Unplug the projector and wait for it to cool down.
Hold the knobs on the filter cover, located on the side panel of the projector parallel to the lens' barrel, and swing it away from the projector, bottom out.
Remove the air filter by swinging it out of the projector.
Vacuum the air filter cover and vent so that it is clean.
Place the new air filter between the knobs in the projector and reinstall the cover.
Plug the projector into the wall, reposition it, and press the "Power" button to turn it back on.
Press the "Menu" button to turn on the OSD menu. Activate the Advanced Menu by scrolling down to the "Go to the Advanced Menu" option and pressing the "Right" arrow.
Use the "Down" arrow to scroll to the "Option" item, and press the "Right" button to select it.
Press the "Down" arrow repeatedly until "Filter Time" is highlighted, then press the "Right" arrow to select it. Finally, press the "Up" arrow to reset the counter.
- Consider replacing the air filter before you turn the projector on to reset the lamp timer. This will save you from having to cool down your projector twice.
- Attempting to replace the lamp before it is cool is dangerous and could result in severe burns.
- If the lamp has burst inside the projector, have a Hitachi dealer replace it for you so that the projector's internal components can be properly cleaned.