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ViewSonic PJ501/PJ551
Replacing the Lamp
When the indicator shows that there is zero (0) hours of lamp life remaining, the unit will
automatically shut off within 10 minutes. If you see this message you should replace the lamp.
However, you may replace the lamp anytime after the first warning message appears at
approximately 300 hours of remaining lamp life.
Resetting the Lamp Timer
After replacing the lamp, it is important that you reset the lamp timer. When the lamp has been
replaced after the "THE POWER WILL TURN OFF AFTER 0hr." message is displayed, complete
the following steps within 10 minutes of switching power ON. The power will be turned off
automatically after 10 minutes.
1
Switch POWER ON.
2
From the OPTION menu select LAMP TIME with the description of "Adjusting the Projected
Image".
3
Press the RESET button and hold for approximately 3 seconds. The DEFAULT and CANCEL
options will display.
4
Press the Up arrow button to select the DEFAULT. The remaining lamp life is now reset to 2000
hours.
IMPORTANT:
Do not reset the lamp timer without replacing the lamp. The message functions will
not operate properly if the lamp timer is not reset correctly.
1
Switch the projector OFF, remove the power cord from the
power outlet, and wait at least 45 minutes for the unit to
cool.
2
Prepare a new lamp.
3
Check that the projector has cooled sufficiently, and gently
turn it upside down.
4
Loosen the two screws as shown in the diagram, and remove
the lamp cover.
5
Loosen the one screw, and gently remove the lamp while
holding the grips. Touching the inside of the lamp case may
result in uneven coloring.
6
Install the new lamp and tighten the one screw firmly. Make
sure that the lamp assembly is seated properly before
replacing the other screw.
7
Replace the lamp cover in position and tighten the two
screws firmly.
8
Gently turn the projector right-side up.
CAUTION
• Ensure that screws are tightened properly. Screws not tightened fully may
result in injury or accidents.
• Do not use the projector with the lamp cover removed.
Figure 11: Lamp Replacement