Operation
36
Locking control keys
With the control keys on the projector locked, you can prevent your projector settings
from being changed accidentally (by children, for example). When the
Panel Key Lock
is
on, no control keys on the projector will operate except
POWER
.
1.
Go to the
SYSTEM SETUP: Basic
>
Panel Key Lock
menu, and select
On
by
pressing
/ on the projector or remote control. A confirmation message
appears.
2.
Highlight
Yes
and press
OK
to confirm.
To release panel key lock, use the remote control to enter the
SYSTEM SETUP: Basic
>
Panel Key Lock
menu and press
/
to select
Off
.
Keys on the remote control are still active when panel key lock is enabled.
If you turn off the projector without disabling panel key lock, the projector will still be in locked status the
next time it is turned on.
Operating in a high altitude environment
We recommend you use the
High Altitude Mode
when your environment is between
1500 m –3000 m above sea level, and ambient temperature is between 0°C–30°C.
Do not use the
High Altitude Mode
if your altitude is between 0 m and 1500 m and ambient temperature is
between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition.
To activate the
High Altitude Mode
:
1.
Press
MENU
and then press / until the
SYSTEM SETUP: Advanced
menu
is highlighted.
2.
Press
to
highlight
High Altitude Mode
and press
/
select
On
. A
confirmation message appears.
3.
Highlight
Yes
and press
OK
.
Operation under "
High Altitude Mode
" may cause a higher decibel operating noise level
because of increased fan speed necessary to improve overall system cooling and
performance.
If you use this projector under other extreme conditions excluding the above, it may
display auto shut-down symptoms, which is designed to protect your projector from over-
heating. In cases like this, you should switch to High Altitude mode to solve these
symptoms. However, this is not to state that this projector can operate under any and all
harsh or extreme conditions.
Adjusting the sound
The sound adjustments made as below will have an effect on the projector speaker(s). Be
sure you have made a correct connection to the projector audio input. See
for how the audio input is connected.
Muting the sound
To temporarily turn off the sound, press
, or:
1.
Press
MENU
and then press / until the
SYSTEM SETUP: Advanced
menu
is highlighted.
2.
Press
to
highlight
Audio Settings
and press
OK
. The
Audio Settings
page
appears.
3.
Highlight
Mute
and press / to select
On
.
