Sony PCG-Z505JS - Manual (Page 11)

Selecting the Display Mode
7
Click OK. The Display Properties window appears and the display
mode you selected is now available.
Using a CRT or Projector
When you select CRT/Projector as the display mode, you can choose
additional settings as follows:
1
After selecting CRT/Projector as the type of external display (step 6
of Selecting the Display Mode), click Advanced Settings.
✍
You can turn off the computer’s LCD display by removing the checkmark from the LCD option
under Internal Display.
If you turn off the LCD when you select a display, the Projector option will no longer be
available.
If you select CRT/Projector and turn off the LCD, you can use the Refresh Rate slider to change
the display's horizontal frequency. This setting can be made only for CRT display.
If you select Independent Display Timing (see page 12), you can change both the resolution
and the refresh rate.
✍
Some displays do not support using both the computer’s LCD and an external display
simultaneously.
(Windows® 98 only)