Hitachi HF-W2000 50, Инструкция по эксплуатации

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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.
Setting the volume
1. Click Start and then Control Panel, and then click Hardware and Sound.
2. Click Adjust system volume to adjust the volume.
(18) A serial port does not operate properly.
Possible cause
There is a problem with the cable connection, or the applicable device has failed.
1. Adjust the volume of the equipment to an appropriate level. (See Setting the 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 power cord of the speakers is plugged in.
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.
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 to check
whether the problem goes away.
Action