Sony PCG-R505ELP VAIO User Guide (primary manual) User Manual page 11

To use the Jog Dial Control
1.
Select a mode in which to navigate from the Indicate Window. See
2. Rotate the center Jog Dial
3. Press the Jog Dial Control to select a menu item listed between the two arrows on the Jog Dial Launcher.
4. If necessary, press the Back button to return to the previous menu.
Control to scroll up and down a selected menu.
"Using the Indicate Window."
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