Hitachi ED-X24Z User's Manual And Operating Manual page 70

Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon Cases not involving a machine defect
The signal cables are not correctly connected.
The MUTE function is working.
The AUDIO SOURCE/SPEAKER setting is not correct.
The signal cables are not correctly connected.
The computer cannot detect the projector as a plug
and play monitor.
The BLANK screen is displayed.
BLANK
The FREEZE function is working.
FREEZE
Color settings are not correctly adjusted.
The COLOR SPACE setting is not suitable.
MUTE VOLUME + -
Troubleshooting
Reference
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