Sony PCG-Z505JS - Manual (Page 13)

Selecting the Display Mode !
Customizing for external display/projector use
If you selected CRT/Projector in step 6 of Selecting the Display Mode,
you can set the resolution and so forth as appropriate for the type of
external computer display or projector.
1
Click Details in step 6 of Selecting the Display Mode on the previous
page. Advanced Settings appears.
2
Select the display type.
Set the refresh rate/resolution (for Independent display/Timing). When
Independent display/Timing is selected in Monitor settings, you can set
separate values for the refresh rate and resolution of the internal and
external displays.
Set the resolution. Select the resolution for the projector that you are going
to use.
3
Click OK
Setting Function
CRT Connection to an external computer display.
Projector Connection to a projector.
!
Important! It is not possible to select Independent display/Timing when True
Color (24 bit) is selected for the number of colors.