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Maintenance 45
Lamp information
Calculation of lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically
calculated by the built-in timer. The method of calculating the equivalent lamp hour is as
follows:
Total (equivalent) lamp hour
= (hours used in Economic mode) + 4/3 (hours used in normal mode)
See "Economic Mode (off)" on page 42 for more information on Economic mode.
The lamp hour in Economic mode is calculated as 2/3 of that in normal mode. That is, using
the projector in Economic mode helps to extend the lamp life by 1/3.
Warning message
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 explode.
For more detailed information on projector warnings, please refer to "Indicators" on page
49.
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 displays will remind you to change the lamp.
Message Status
Total (equivalent) lamp hour has reached 3000 hours.
Install a new lamp for optimal performance.
Total (equivalent) lamp hour has reached 3950 hour.
A new lamp should be fitted to avoid the
inconvenience when the projector runs out of lamp
time.
NOTICE: Order replacement lamp
Lamp > 3000 Hours
Projector will stop at 4000 hours
Lamp > 3950 Hours
NOTICE: Replace lamp soon
Projector will stop at 4000 hours