Lamp Information; Warning Messages; Replacing The Lamp - HP L1744A User Manual

Lamp Information

Warning Messages

When the Lamp indicator lights up red or a message appears suggesting it is time
to replace the lamp, please install a new lamp or consult your dealer. An old lamp
may cause a malfunction in the projector and in some instances the lamp may
break.
For more detailed information on the lamp indicator, please refer to page 34.
The Lamp indicator light and Temperature warning light will light up if the lamp becomes too
hot. Turn the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator
still lights up after turning the power back on, please contact your dealer.
The following Lamp warning messages will remind you to change the lamp.
Message
Lamp is getting old.
Buy a spare lamp.
Install a new lamp.
Then hold [ ] to reset lamp hours.

Replacing the Lamp

To reduce the risk of electrical shock, always turn the projector off and disconnect the power
cord before changing the lamp.
To reduce the risk of severe burns, allow the projector to cool for at least 45 minutes before
replacing the lamp.
To reduce the risk of injuries to fingers and damage to internal components, use caution when
removing lamp glass that has shattered into sharp pieces.
To reduce the risk of injuries to fingers and/or compromising image quality by touching the
lens, do not touch the empty lamp compartment when the lamp is removed.
The lamp contains a small amount of mercury. If the lamp breaks, adequately ventilate the area
where the breakage occurred. Disposal of this lamp might be regulated due to environmental
considerations. For disposal or recycling information, contact your local authorities or the
Electronic Industries Alliance (http://www.eiae.org).
1. Turn off the projector.
2. After the power button stops flashing, unplug the power cord from the wall
socket.
3. Turn the projector over. Then loosen the
screws and remove the lamp cover. If the
lamp is hot, avoid burns by waiting for 45
minutes until the lamp has cooled.
32 6. Maintenance
End of lamp life
Status
The lamp has been in operation for a
long time, and you should have a spare
lamp available. For optimal perfor-
mance, install a new lamp.
The lamp has reached the end of its life,
and the projector will not operate nor-
mally until you change the lamp.