9. TROUBLESHOOTING
9-17
(17) No sound is generated, or the sound is extremely faint.
<Possible cause>
There is an error in the settings of the equipment and the speakers, there is a problem with
the cable connection, or the speakers have failed.
(18) A Serial port or a parallel port does not work properly.
<Possible cause>
There is a problem with the cable connection, or the target device has failed.
1. Adjust the volume of the equipment to an appropriate level. (See <Setting a volume>.)
2. When you use speakers, check the following items.
i) Make sure that the speakers have built-in amplifiers.
(If the speakers do not have amplifiers, you cannot hear sound.)
ii) Make sure that the plug of the power cord of the speakers is connected to the outlet.
iii) Turn on the power of the speakers.
iv) Make sure that the volume level of the speakers is adequately adjusted.
v) Make sure that the cable from the speakers is connected to LINE OUT.
vi) When you record an audio signal from an audio device, connect LINE OUT of the
audio device to LINE IN of the equipment by using a cable. (LINE IN cannot be used
as a MIC input.)
vii) Disconnect the cable from the speakers and securely reconnect it to ensure a stable
connection.
viii) Use another pair of speakers.
<Setting a volume>
1. Click Start > Control Panel.
2. Click Hardware and Sound and then click Adjust system volume to adjust the volume.
<Action>
1. Disconnect the cable and securely reconnect it to ensure a stable connection.
2. Check to see if the target device has failed.
3. If the OS starts while a serial port is receiving data, use the serial port after the OS starts
instead and see whether the problem goes away.
<Action>
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