VIEWSONIC PJL7211 - Manual (Page 62)

PJL7211 ViewSonic 57
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.

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.
11, 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.
49, 50
No pictures are
displayed.
The signal cables are not correctly connected.
Correctly connect the connection cables.
9
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.
5
The brightness is adjusted to an extremely low level.
Adjust BRIGHTNESS to a higher level using the menu
function.
5
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.
0
The BLANK screen is displayed.
Press the BLANK button on the remote control.
0
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