Canon LV-X4U Service Manual page 42

Part 2: Repair Information
[How to reset lamp replace counter]
1. Turn the projector on, press the MENU button and the On-Screen Menu will appear.
Press the Point Left/Right button to move the red frame pointer to the Setting Menu
icon.
2. Press the Point Down button to move the red frame pointer to the Lamp counter
reset item and then press the SELECT button. The message "Lamp replace counter
Reset?" is displayed. Move the pointer to [Yes] and then press the SELECT button.
3. Another confirmation dialog box appears and select [Yes] to reset the Lamp replace
counter.
[Recommendation]
Should the air filter become clogged with dust particles, it will reduce the cooling fan's
effectiveness and may result in internal heat build up and short lamp life. We
recommend cleaning the air filter after the projection lamp is replaced.
Refer to "Air Filter Cleaning".
[How to check lamp used time]
The LAMP REPLACE indicator will light yellow when the total lamp used time reaches
3000 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 = Teco + Tnormal (1+1/2)
Teco : used time in the Silent mode
Tnormal : used time in the Normal mode
You can check the lamp used time following to the below procedure.
1. Press and hold the POWER button on the projector for more than 20 seconds.
2. The projector used time and lamp used time will be displayed on the screen briefly as
follows.
Projector used time
Counter
Projector 525H
Lamp
Normal 150H
Eco 375H
Total 575H
Total lamp used time
Fig. 2-21
2-16