Simple troubleshooting
If you encounter any of the following issues while using this speaker system, refer to
the solutions below to resolve them. If the problem persists, contact your local dealer
for repair or call the Lenovo Service Center. To avoid electric shock or worsening the
problem, DO NOT attempt to perform repairs by yourself!
Problem description
Possible cause
Solution
No sound
z
Bad connection with
the USB port
z
Improper connection
between the speaker
and the computer
z
Improper
input/output
connection
z
Wrong input mode
z
Short circuit in the
ports of the speaker
z
Insufficient power
supply
z
Ensure the proper and
firm connection to the
power supply plug
z
Check the connection
sites of the speakers
z
Ensure the proper
input/output connection
z
Choose a correct input
mode
z
Ensure proper
connection before
turning on the speakers
In some PCs, there may
occasionally be no sound
when the plug is inserted
into an USB port. This is
usually due to insufficient
power supply of the USB
port. Please try other USB
ports.
One of the speakers is
mute
z
Misconnection
between the speaker
and the computer
z
Check the connection
sites of the speakers
Abuzz sound or low
frequency noise
z
Improper grounding
of the input cable or
bad connection
z
Reconnect or check the
signal cable. If both the
connection and the
signal cable are correct,
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