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3-18 Troubleshooting and Diagnostics Technology Code ID)
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Infrared
General problems. Make sure correct drivers are
installed. In Device Manager,
double-click Infrared devices,
then double-click IrDA Fast
Infrared Port. On Advanced
tab, click Infrared Transceiver
A in Property window, then
select IBM 31T1100 from
pull-down menu.
Make sure the line between
the two infrared ports is not
blocked, ports face each
other squarely and are no
more than 1 meter apart.
Sunlight, heat from nearby
equipment, or other sources
of infrared radiation can
cause transmission errors.
Make sure only one
application is using infrared
port.
Remove any PC Cards from
notebook (possible IRQ
conflict).
For fast-IrDA, check for DMA
conflict with ECP parallel
port.
Motherboard.
Wireless
General problems. Check TCP/IP setup in
Control Panel.
Check SSID and channel
settings: click wireless link
icon in taskbar and select
Advanced Configuration.
Stop USB devices that may
perform large data transfers,
or adjust application settings
to reduce transfer rate.
Make sure wireless PCA and
antenna are installed
properly.
Display assembly.
Wireless PCA.
Antenna.
Motherboard.
Notebook with
Bluetooth won’t
enter standby or
hibernation.
Disable Bluetooth. If
Bluetooth device is
transmitting, notebook may
not be able to enter standby
or hibernation.