Viewsonic PJ1172 用户手册

If the indicators or a message prompts you to replace the lamp, replace the lamp as soon 

as possible.

Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least 
45 minutes.

Contact your dealer to prepare a new lamp. Tell the dealer your lamp type number. If the 
projector is mounted on the ceiling, or if the lamp has broken, also ask the dealer to 
replace the lamp.

After making sure that the projector has 
cooled adequately, slide the knob of a lamp 
cover lock as shown in the Figure.
Then, one side of the lamp cover is raised. 
Pull up the lamp cover and remove it, as 
shown in the Figure.

Unscrew the 3 screws, and slowly pull out 
the lamp by the handle. Becareful not to 
touch the inside of the lamp case.

Insert the new lamp, and tighten the 3 
screws firmly to lock it in place.

Interlock the 2 tabs of the lamp cover to the 
projector, put the lamp cover on the 
projector.
Then push the point of the lamp cover to 
secure it, as shown in the figure. Make sure 
that the lamp cover doesn’t come up.

Turn on the projector power, and reset the 
lamp timer.

(1) While the projector running, press the 

MENU button to open the menu.

(2) Choose the “OPTION” on the menu using the S/T button, then press the X button 

or ENTER button.

(3) Choose the “LAMP TIME” using the S/T button, then press and hold the RESET 

button for 3 seconds.

(4) Choose the “RESET” using the S button.

Incorrectly resetting of the lamp timer (resetting without replacement, or neglect of 

resetting after replacement) will result in incorrect message functions.

Lamp cover knob

Lamp cover

Screws

Tabs