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IN3138HD User’s Manual
Audio
Press the
Menu
button to open the
OSD
menu. Press the
◄►
buttons to move to the
Settings 1
menu. Press the
▼▲
buttons to move to the
Audio
menu and then press
(Enter) or
►
. Press the
▼▲
buttons to move up and down in the
Audio
menu.
I
TEM
D
ESCRIPTION
Volume Press
the
◄►
buttons to enter and adjust the audio volume.
Mute Press
the
◄►
buttons to enter and turn on or off the speaker.
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