Change PIP: While in PIP mode, use Preselect button to select
proper input signals, the preselected signals will be set as PIP.
Change the background: you must first turn off PIP mode.
Press buttons to select appropriate input signal as background,
then enter PIP mode again, and select a new PIP picture.
Switch PIP/POP display mode: LVP605 allows for presetting
4 PIP/POP display modes, each mode allows for setting its own
background and PIP sizes and locations. While PIP/POP mode is
switched on, user can press the mode switching buttons (M1, M2,
M3, M4) to select appropriate display modes quickly.