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Maintenance
The LAMP REPLACE indicator will light yellow when the total lamp used time (Corresponding value) reaches 3,000
hours. This is to indicate that lamp replacement is required. The total lamp used time is calculated by using the
below expression.
Total lamp used time (Corresponding value) = Tnormal + Teco x 0.67 + Tauto x k*
Tnormal : used time in the normal mode
Teco : used time in the eco1 and eco2 mode
Tauto : used time in the auto mode
* Factor k is changed from 0.67 to 1.0 automatically depending on the input signal
You can check the lamp used time following to the below procedure.
1 Press and hold the ON/STAND-BY button on the projector or the remote control for more than 20 seconds.
2 The projector used time and lamp used time will be displayed on the screen briefly as follows.
If the non-standard lamp is used, the warning and confirmation messages will appear on the screen every startup.
Some of the functions are limited when the non-standard lamp is used in spite of the warning.
Since the lamp is not standard,
projector failed to read lamp data.
Continue to use this lamp?
Yes
No
Warning message on the non-standard lamp used
Counter
Projector 850H
Lamp
Auto 200H
Normal 150H
Eco1 250H
Eco2 250H
Corresponding value 610H
Total lamp used time
Projector used time
Cumulative
lamp operating
time in each
mode.
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