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© 3M 2011. All Rights Reserved.
3M™ Digital Projector X56
Troubleshooting
Symptoms that may be mistaken for machine defects
If a projector is not working properly, check the following table for troubleshooting
procedures.
Symptom Solution
Reference
page
Power does not
come on.
The electrical power cord is not plugged in.
Correctly connect the power cord.
15
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.
15
Either there is no lamp and/or lamp door, or either of
these has not been properly xed.
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
sufciently cooled down, please make conrmation of
the attachment state of the lamp and lamp door, and
then turn the power on again.
89
Neither sounds
nor pictures are
outputted.
The signal cables are not correctly connected.
Correctly connect the connection cables.
10 ~ 14
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.
19 ~ 21
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.
19, 28,
100
(Continued on next page)