No sound can be heard
from the speaker even
when the volume is turned
up.
• Make sure that:
- The Mute function is off.
- The combo audio jack is not being used.
- Speakers are selected as the playback
device.
Your computer does not
respond.
• To turn off your computer, press and hold
the power button for 6 seconds or more. If
the computer still does not respond,
remove the AC adapter.
• Your computer might lock when it enters
sleep mode during a communication
operation. Disable the sleep timer when
you are working on the network.
The connected external
device does not work.
• Do not connect or disconnect any
external device cables other than USB
while the computer power is on.
Otherwise, you might damage your
computer.
• When using a high power consumption
external device such as an external USB
optical disk drive, use an external device
power adapter. Otherwise, the device may
not be recognized.
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