Hitachi CP-WU5500 User's Manual And Operating Manual page 119

Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defect
The batteries in the remote control are near the end.
The FREEZE function is working.
FREEZE
Color settings are not correctly adjusted.
COLOR SPACE setting is not suitable.
The brightness and/or contrast are adjusted to an
extremely low level.
The projector is operating in Eco mode.
The lamp is approaching the end of its product
lifetime.
Dimming Level of Blending function is working.
The lens cover is attached.
Either the focus and/or horizontal phase settings are
not properly adjusted.
Troubleshooting
Reference
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