75
Troubleshooting
Resetting all settings
When it is hard to correct some wrong settings, the FACTORY RESET function of
SERVICE item in OPTION menu
(
59
) can reset all settings (except LANGUAGE,
FILTER TIME, LAMP TIME, FILTER MESSAGE and SECURITY settings and etc.)
to the factory default. Be sure to set ALTITUDE after resetting all the settings
(
67
).
Phenomena that may be easy to be mistaken for machine defects
About the phenomenon confused with a machine defect, check and cope with it
according to the following table.
Phenomenon
Cases not involving a machine defect
Reference
page
Power does
not come on.
The electrical power cord is not plugged in.
Correctly connect the power cord.
14
The main power source has been interrupted during
operation such as by a power outage (blackout), etc.
Please disconnect the power plug from the power outlet,
and allow the projector to cool down at least 10 minutes,
then turn the power on again.
14
Either there is no lamp and/or lamp cover, or either
of these has not been properly fixed.
Please turn the power off and disconnect the power
plug from the power outlet, and allow the projector to
cool down at least 45 minutes. After the projector has
sufficiently cooled down, please make confirmation of
the attachment state of the lamp and lamp cover, and
then turn the power on again.
65
Neither sounds
nor pictures are
outputted.
The signal cables are not correctly connected.
Correctly connect the connection cables.
12, 13
Signal source does not correctly work.
Correctly set up the signal source device by referring to
the manual of the source device.
–
The input changeover settings are mismatched.
Select the input signal, and correct the settings.
21, 22
The BLANK function for pictures and the MUTE
function for sounds are working.
AV MUTE may be active.
Refer to the item “Sound does not come out” and “No
pictures are displayed” on the next page to turn off the
MUTE and BLANK functions.
20, 28
(continued on next page)
