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SECTION 6Troubleshooting
6-6 PEN*KEY
R
6642 Pen Computer User’s Guide
Why doesn't the device connected to the RS-232C serial
port function?
" Confirm that the device is correctly connected to the
floppy disk drive/port expander with an appropriate
cable.
" Confirm that the external floppy disk drive/port exĆ
pander is connected correctly.
" Confirm that the application program is compliant
with the RS-232C standard interface.
" Confirm that the COM1 port is not disabled by doing
the following:
1. In the System Properties dialog box, select Device
Manager.
2. Double-tap Ports, (COM&LPT); then double-tap ComĆ
munications Port (COM1).
3. Make sure the item Disable in this hardware profile is
unchecked.
" Confirm that COM1 is not used by another application.
" Confirm that the Serial Port is set up correctly in the
setup utility.