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Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
The signal cables are not correctly connected.
The MUTE function is working.
The volume is adjusted to an extremely low level.
The AUDIO SOURCE/SPEAKER setting is not correct.
The lens cover is attached.
The signal cables are not correctly connected.
The brightness is adjusted to an extremely low level.
The computer cannot detect the projector as a Plug-
and-Play monitor.
The BLANK screen is displayed.
COMPUTER IN2 is set to MONITOR OUT.
All manuals and user guides at all-guides.com
Cases not involving a machine defect
USB TYPE A
USB TYPE B
LAN
BLANK
MUTE
VOLUME + -
Troubleshooting
Reference
page
52
97
4
11
45
109
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