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A8
Control
Panel
Functions
SOURCE
MENU
AUTO
/SET
(-)
(+)
ENGINE
Front
Panel
Controls
MENU
Button
Use
this
button
to
enter
or
exit
the
On
Screen
Display.
Control
Function
OSD
LOCKED/UNLOCKED
This
function
allows
you
to
lock
the
current
control
settings,
so
that
they
cannot
be
inadvertently
changed.
Touch
and
hold
the
MENU
button
for
5
seconds.
The
message
"OSD
LOCKED"
should
appear.
You
can
unlock
the
OSD
controls
at
any
time
by
touching
the
MENU
button
for
5
seconds.
The
message
"OSD
UNLOCKED"
should
appear.
<L1780U/L1980U/L1780Q/L1980Q>
<L1781Q/L1981Q>
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