Panasonic TY-TP42P8S Operating Instructions Manual page 20

Installation of the USB Driver
About the COM port
When it is set up, the USB driver is recognized as a COM port of the PC. Specify this COM number when you don't
use an automatic connection. The setup number varies in the use environment of the PC.
Notes for Installation of USB driver
(Windows 2000/XP)
After the installation of the driver is completed, a new hardware wizard will not be displayed even if a USB cable is
re-connected to the PC.
However, it is recognized as a new hardware, and a setup wizard is indicated when it is connected to a port which
is different from the USB port which did the setup of the driver. In this case, cancel the setup, and connect it to the
USB port, where the driver was setup.
If you unplug and plug USB cable quickly, the PC sometimes does not recognize it.
In that case, please reboot PC.
If running Windows XP, the PC may not automatically recognize hardware on insertion or removal of USB cables.
It is recommended that Windows XP Service Pack 1 (or later) is installed.
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