Compaq Armada m300 Compaq Armada M300 Series of Personal Computers Maintenance - Page 42

Table 2-14, Solving Keyboard, Problems, Solving Modem, Possible Cause, Solution - lcd

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Table 2-13 Continued Problem Infrared port doesn’t work. Problem Screen is blank and keyboard is working. Embedded numeric keypad on computer keyboard is disabled. Problem Modem loses connection. Modem not responding Possible Cause Solution Direct sunlight, fluorescent light, Remove the interfering light source(s). or flashing incandescent light is close to the infrared connections. There is interference from other wireless devices. Keep remote control units such as wireless headphones and other audio devices away from the infrared connections. IR has been disabled. Run IR configuration utility in Control Panel. Table 2-14 Solving Keyboard Problems Possible Cause Solution A screen timeout has been initiated.. Press any key to refresh the screen. QuickLock/QuickBlank has been initiated To enable the keyboard and return your information to the screen, enter your power-on password. LCD has been disabled. Num Lock function is not turned on Press Fn+F4 to cycle from external monitor to internal LCD. Press Fn+Num Lk to enable the Num Lock function and embedded numeric keypad. Table 2-15 Solving Modem Problems Possible Cause Solution The cable connection from the phone line to the modem is loose. Call Waiting has not been disabled. There is noise or excessive traffic on the phone line. Check to make sure the telephone cable is properly connected. Disable Call Waiting: 1. Select Start Æ Setting Æ Control Panel Æ select Modems. 2. From the General tab of the Modems Properties page, select Dialing Properties. From the My Locations tab of the Dialing Properties page, check the box labeled This location has call waiting. Select *70, 70#, or 1170 from the drop-down list to disable call waiting. Try connecting at a later time. Modem is not set up correctly in system BIOS. Check the computer BIOS setup. If it requires specific settings for modems, be sure that they have been enabled. Continued Troubleshooting 2-19

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Troubleshooting
2-19
Table 2-13
Problem
Possible Cause
Solution
Infrared port doesn±t work.
Direct sunlight, fluorescent light,
or flashing incandescent light is
close to the infrared connections.
Remove the interfering light source(s).
There is interference from other
wireless devices.
Keep remote control units such as
wireless headphones and other audio
devices away from the infrared
connections.
IR has been disabled.
Run IR configuration utility in Control
Panel.
Table 2-14
Solving Keyboard
Problems
Problem
Possible Cause
Solution
Screen is blank and keyboard is
working.
A screen timeout has
been initiated..
Press any key to refresh the screen.
QuickLock/QuickBlank
has been initiated
To enable the keyboard and return
your information to the screen, enter
your power-on password.
LCD has been disabled.
Press
Fn+F4
to cycle from external
monitor to internal LCD.
Embedded numeric keypad on
computer keyboard is disabled.
Num Lock function is not turned
on
Press
Fn
+
Num Lk
to enable the Num
Lock function and embedded numeric
keypad.
Table 2-15
Solving Modem
Problems
Problem
Possible Cause
Solution
Modem loses connection.
The cable connection from the
phone line to the modem is loose.
Check to make sure the telephone
cable is properly connected.
Call Waiting has not been
disabled.
Disable Call Waiting:
1.
Select Start
Æ
Setting
Æ
Control
Panel
Æ
select Modems.
2.
From the General tab of the
Modems Properties page, select
Dialing Properties.
From the My Locations tab of the
Dialing Properties page, check the box
labeled This location has call waiting.
Select *70, 70#, or 1170 from the
drop-down list to disable call waiting.
There is noise or excessive traffic
on the phone line.
Try connecting at a later time.
Modem not responding
Modem is not set up correctly in
system BIOS.
Check the computer BIOS setup. If it
requires specific settings for modems,
be sure that they have been enabled.