82
Troubleshooting
If you experience problems, read this chapter first. It contains tips for resolving problems.
●
Is the PCR connected correctly?
Make sure that the PCR is connected to the USB connector of your computer via a USB
cable. After making the USB connection, it may take fifteen seconds or more for your
computer to detect the PCR.
●
Is the PCR’s power switch set correctly?
Make sure that the PCR’s power switch is set to “USB” if you’re using USB bus power,
or to “DC” if you’re using an AC adaptor.
(->
Power switch
(p. 7))
●
Is sufficient power being supplied to your computer or
USB hub?
The connection cannot be established if insufficient power is being supplied to the
PCR. Make sure that none of the following cases apply.
• If you’re using a notebook computer that’s running on its battery, operation may
be unstable in the case of some computers. In this case, connect an AC adaptor to
your computer.
• The power management settings of your computer may be limiting the power that
is supplied to USB. Check the settings on your computer.
• In some cases, the PCR cannot be used with bus-powered hubs (USB hubs that do
not contain a power supply). Please use a self-powered hub (a hub that contains a
power supply).
●
Could another USB device be connected?
All USB devices other than a mouse and keyboard must be disconnected from your
computer before you install the driver.
●
Could other applications or resident software (such as
antivirus programs) be running?
Installation may not occur correctly if other programs are running. Be sure to close all
other programs before you install the driver.
●
Is power management turned off for your computer?
If power management or energy-saving settings are enabled on your computer, turn
them off. For details on how to do this, refer to your computer’s owner’s manual.
●
Is there sufficient space on your hard disk?
Delete unneeded files to increase the amount of free space. After deleting the
unneeded files, empty the Recycle Bin.
●
Does the Device Manager show “Other Device,”
“Unknown Device,” or a device marked with “?/!/x”?
If the driver was not installed correctly, the installed driver may remain in an
incomplete state. Delete the driver as described in
Deleting the USB driver
(p. 84), and
then install the PCR driver once again as described in “Setup guide.”
Problems with connections
No sound Can’t install the driver
PCR-300_500_800_e.book 82 ページ ２００６年１２月１９日 火曜日 午後２時５９分