Christie LWU620i User Manual page 119

Related messages (continued)
Message
(continued on next page)
LWU720i/LHD720i/LWU620i
User's Manual - Operating Guide
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 (User's Manual (concise))).
• 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 (94). If the projector is used with
a wrong setting, it may cause damage to the projector
itself or the parts inside.
117
Troubleshooting
Description
020-001279-01 Rev. 1 (10-2017)