Hitachi ED-X40 User Manual page 71

Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
62
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 lens cover is attached.
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.
COLOR SPACE setting is not suitable.
MUTE VOLUME + -
Reference
page
9
15
15
36
3
9
26
10
21
21
31