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User’s Manual 9-17
L450/L450D
Volume control
External monitor
Please also refer to Chapter 8, Optional Devices, and to the documentation
supplied with your monitor for further information.
Problem Procedure
No sound is heard Adjust the volume control.
Turn the dial clockwise to decrease the volume
and turn it counter-clockwise to increase the
volume.
Turn the volume control while verifying the
volume in order to adjust.
Annoying sound is
heard
Volume cannot be adjusted when Windows is
turned on or turned off.
If you are still unable to resolve the problem,
contact your reseller, dealer or service provider.
Problem Procedure
Monitor does not turn
on
After confirming that the monitor’s power switch
is on, you should check the connections to make
sure that the power cord/adaptor is firmly
connected to the monitor and to a working power
outlet.