Hitachi CP-BX301WN User Manual page 103

Related messages (continued)
Message
The horizontal or vertical frequency of the input signal is
not within the specified range.
Please confirm the specs for your projector or the signal
source specs.
An improper signal is input.
Please confirm the specs for your projector or the signal
source specs.
The internal temperature is rising.
Please turn the power off, and allow the projector to cool
down at least 20 minutes. After having confirmed the
following items, please turn the power ON again.
• Is there blockage of the air passage aperture?
• Is the air filter dirty?
• Does the peripheral temperature exceed 40°C?
• Is the projector used at an altitude of about 1600 m or
higher? If the projector is used at an altitude of about 1600
m or higher, set ALTITUDE of the SERVICE item in the
OPTION menu to HIGH (64). 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.
Please 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, please be sure to reset the filter time
(47, 98).
The button operation is not available.
Troubleshooting
Description
103