Hitachi CP-A200 User Manual page 78

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/SPEAKER setting is not correct.
The lens door is not fully opened.
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
MUTE VOLUME+/-
Troubleshooting
Reference
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