Christie DS Series Service Manual page 15

5-3 Related Messages
When some messages appear, check and deal with it according to the following table. Although
these messages automatically disappear after several minutes, they reappear when the power is
turned on.
Message
LWU900-DS/LHD878-DS/LWU755-DS
Service Manual
LWU900-DS / LHD878-DS / LWU755-DS
There is no input signal.
Confirm the signal input connection, and the status of the
signal source.
Projector is waiting for an image file.
Check the hardware connection, settings on the projector and
network-related settings.
The computer-Projector network connection might be
disconnected. Re-connect them.
The horizontal or vertical frequency of the input signal is
not within the specified range.
Confirm the specs for your projector or the signal source
specs.
An improper signal is input.
Confirm the specs for your projector or the signal source
specs.
The internal temperature is rising.
Turn the power off, and allow the projector to cool down at
least 20 minutes. After having confirmed the following items,
turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Use the unit within the usage temperature parameters (0°C
to 40°C or 45°C).
• Is the setting for ALTITUDE appropriate?
• Is the exhaust air (hot/cold) from peripheral equipments
blowing against the ventilation opening of projector?
For details of ALTITUDE, refer to ALTITUDE of SERVICE in the
OPTION menu. If the projector is used with a wrong setting, it
may cause damage to the projector itself or the parts inside.
A note of precaution when cleaning the air filter.
Immediately turn the power off, and clean or change the air
filter referring to the Cleaning and replacing the air filter
section of this manual. After you have cleaned or changed the
air filter, reset the filter timer.
The button operation is not available.
Check the button you want to use.
14
Description
020-001586-01 Rev. 1 (02-2021)
LIT MAN SERV DS Series