Changing The Picture Size - Sony FD Trinitron WEGA KV-30HS510 Operating Instructions Manual

Changing the
The zoom feature lets you vary the relative size of the left and right
Picture Size
pictures.
1 Move the joystick ÷ or ,÷ to activate the picture
that you want to resize.
2 Move the joystick ÷ to enlarge the picture.
3 Move the joystick _ to make the picture
smaller.
When you adjust the picture sizes, the TV memorizes the change. The
next time you use the Twin View function, the memorized sizes
appear.