Hitachi CP-A100 User Manual – Operating Manual page 72

Troubleshooting
Phenomena that may be easy to be mistaken for machine defects (continued)
Phenomenon
Sound does not
come out.
No pictures are
displayed.
(continued on next page)
7
Cases not involving a machine defect
The signal cables are not correctly connected.
Correctly connect the audio cables.
The MUTE function is working.
Restore the sound pressing MUTE or VOLUME button on
the remote control.
The volume is adjusted to an extremely low level.
Adjust the volume to a higher level using the menu function
or the remote control.
The AUDIO/SPEAKER setting is not correct.
Correctly set the AUDIO/SPEAKER in SETUP Menu.
The lens door is not fully opened.
Turn the projector off, and then turn it on again to make sure
that the door is opened correctly.
The signal cables are not correctly connected.
Correctly connect the connection cables.
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu
function.
The computer cannot detect the projector as a plug
and play monitor.
Make sure that the computer can detect a plug and play
monitor using another plug and play monitor.
The BLANK screen is displayed.
Press BLANK button on the remote control.
Reference
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37
16, 66
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27, 28

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