17-12 Troubleshooting
Writer: Cheryl Love Saved by: Cheryl Love Saved date: 08/12/97 10:42 AM
Part Number: 247738-002 File name: Ch17.doc
Solving Infrared Problems
Continued
Problem Possible Cause Solution
Cannot transmit data
(continued)
A device was moved. Do not move either
device during data
transmission.
Direct sunlight,
fluorescent light, or
flashing incandescent
light is close to the
infrared connections.
Remove the interfering
light source(s).
Another wireless
device is interfering.
Keep other infrared and
audio remote-control
devices, such as wireless
headphones, away from
the infrared connection.
The infrared lens is
dirty.
Clean the lens with a lint-
free cloth.
Solving Keyboard and
Numeric Keypad Problems
Problem Probable Cause Solution
Embedded numeric
keypad does not
work.
Num Lock function is
not enabled.
Press
Fn+NumLk
to
enable the embedded
numeric keypad (the num
lock light turns on).
External keyboard
does not work.
Keyboard may not be
securely connected or
may be connected to
the wrong external
connector.
Ensure that the external
keyboard is securely
connected to the external
keyboard/mouse
connector.
Keyboard and
pointing device are
locked.
You initiated
QuickLock.
Enter your power-on
password to exit
QuickLock.
NOTE:
If num lock is on,
hold down the Fn key to
type a non-numeric
password; press
Fn+Shift
for uppercase.
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