BenQ MX503 MS502, MX503 User Manual - Page 32

Operating in a high altitude environment, Adjusting the sound, SYSTEM SETUP, Basic &gt

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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 displays. 2. Highlight Yes and press MODE/ENTER 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 press POWER to 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-35°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/EXIT 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 displays. 3. Highlight Yes and press MODE/ENTER. 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 overheating. 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 speakers. Be sure you have made a correct connection to the projector audio input. See "Connection" on page 15 for how the audio input is connected. Muting the sound To temporarily turn off the sound: 1. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted. 2. Press to highlight Audio Settings and press MODE/ENTER. The Audio Settings page displays. 3. Highlight Mute and press / to select On. Adjusting the sound level To adjust the sound level, press VOLUME-/VOLUME+ or 1. Repeat steps 1-2 above. / , or: 32 Operation

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Operation
32
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
displays.
2.
Highlight
Yes
and press
MODE/ENTER
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 press
POWER
to 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–35°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/EXIT
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 displays.
3.
Highlight
Yes
and press
MODE/ENTER
.
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 speakers. Be
sure you have made a correct connection to the projector audio input. See
"Connection"
on page 15
for how the audio input is connected.
Muting the sound
To temporarily turn off the sound:
1.
Press
MENU/EXIT
and then press
/
until the
SYSTEM SETUP: Advanced
menu is highlighted.
2.
Press
to highlight
Audio Settings
and press
MODE/ENTER
. The
Audio
Settings
page displays.
3.
Highlight
Mute
and press
/
to select
On
.
Adjusting the sound level
To adjust the sound level, press
VOLUME-/VOLUME+
or
/
, or:
1.
Repeat steps 1-2 above.