Hitachi CP-SX635 User Manual – Operating Manual page 81

Troubleshooting
Phenomena that may be easily mistaken for machine defects (continued)
Phenomenon
72
Cases not involving a machine defect
The signal cables are not correctly connected.
The MUTE function is working.
The AUDIO setting is not correct.
The audio on your HDMI equipment is not set to Linear PCM.
The audio on the HDMI input is muted.
The digital audio in HDMI signal does not work well.
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.
The HDMI cable is not correctly connected.
Your HDMI equipment is not compatible with the projector
Your HDMI equipment and the projector are not harmonized.
The signal format on the HDMI is not supported.
Reference
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