Hitachi ED-D11N user manual Mute function is working, Volume is adjusted to an extremely low level

Troubleshooting

Phenomena that may be easy to be mistaken for machine defects (continued)

Phenomenon	Cases not involving a machine defect	Reference
		page
	The signal cables are not correctly connected.	10
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	The MUTE function is working.	18
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	The volume is adjusted to an extremely low level.	18
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	The AUDIO SOURCE/SPEAKER setting is not correct.	40
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	The audio on your HDMI equipment is not set to
	Linear PCM.	13
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	The audio on the HDMI input is muted.	40
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	The digital audio in HDMI signal does not work well.
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	The lens cover is attached.	4
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	The signal cables are not correctly connected.	10
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	The brightness is adjusted to an extremely low level.	29
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	The computer cannot detect the projector as a plug
	and play monitor.	13
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	The BLANK screen is displayed.	24
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76