Button Function
CH.
Changes the channel in the PIP window.
VOL.
Turns volume of the PIP window up or
down.
+ SIZE –：
Adjusts the size of the PIP window.
SWAP.
Swaps the main picture and
sub-picture.
STYLE.
Changes the styles of PIP window.
MUTE.
Turns the sound in the PIP window on
and off.
