NEC PX803UL-WH User Manual page 47

2. Adjust the focus at the edges of the projected image.
Press either the ZOOM +/− button on the control panel or the D-ZOOM/ZOOM +/− button while holding to press
the CTL button on the remote control.
Focus around the optical axis set at step 1 is remained unchanged.
3. Repeat steps 1 and 2 until the optimal focus can be obtained on whole image.
TIP:
To obtain the best focus, perform the following (for permanent installation)
Preparation: Warm up the projector for one hour.
1. Use the FOCUS +/− buttons to make sure you obtain the best focus. If you do not, move the projector back
and forth.
2. Select the [TEST PATTERN] from the menu and display the test pattern. (→ page 86)
• You can also use the TEST button on the remote control to display the test pattern.
3. Keep pressing the FOCUS − button until the grid of the text pattern is made invisible.
4. Keep pressing the FOCUS + button until you obtain the best focus.
If you adjust beyond the best focal point, go back to step 3 and repeat the procedures.
5. Press the ZOOM +/− button for adjusting the edges of the projected image.
Press the D-ZOOM/ZOOM +/− button holding to press the CTL button for adjusting it by the remote control.
Repeat steps 1 to 5 until the optimal focus can be obtained on whole image.
2. Projecting an Image (Basic Operation)
Optical axis
30