compaq presario 1200xl User Manual

24 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving CD and DVD Drive Problems
Some common causes and solutions for CD and DVD drive problems are listed in the 
following table.
Solving Diskette Drive Problems
Some causes and solutions for common possible diskette drive problems are listed in the 
following table.
Solving CD or DVD Drive Problems
ProblemProbable CauseSolution(s)
CD or DVD drive 
cannot read a...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 25
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Display Problems
This section lists some common causes and solutions for computer display and external 
monitor problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor by 
disconnecting the monitor from the Notebook, then completing the following steps:
1. Turn off the monitor.
2. Turn off the Notebook.
3. Disconnect the...

26 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Display Problems
ProblemProbable CauseSolution(s)
Screen is dim. Brightness Control 
(if available) is not set 
properly.Adjust the brightness of the 
display by pressing Fn+F7 or 
Fn+F8.
Computer screen is in direct 
light.Tilt display or move computer.
Screen is blank. Screen save was initiated by 
Power Management due to 
lack of user activity.Press any key or...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 27
Presario 1200XL Series
Model XL300, XL300A, and XL300B
*This problem indicates that the backlight or its power circuitry has failed. If the backlight is 
not functioning, the POST result cannot be observed. Connect the unit to an external 
monitor before powering up the unit. If an external monitor is not available, verify that POST 
is complete by opening and closing the display, listening for the single or double beep, and...

28 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Note: When you perform a self-test on an external VGA color or monochrome monitor, 
the screen should be white. A narrow black border may also appear on the left and right 
sides of the display. Both of these displays indicate that the monitor is working properly.
Defective system board.Replace the system board.
A single line, small 
group of lines, or block 
appears on...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 29
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Hard Drive Problems
Some causes and solutions for possible common hard drive problems are listed in the 
following table.
Ä
CAUTION: To prevent loss of information, maintain an up-to-date backup of your 
hard drive at all times in case of errors or failures.
Solving Hardware Installation Problems
Some causes and solutions for possible common hardware installation...

30 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Keyboard/Numeric Keypad Problems
Some causes and solutions for possible common keyboard/numeric keypad problems are 
listed in the following table.
Solving Memory Problems
Some causes and solutions for possible common memory problems are listed in the 
following table.
Solving Keyboard/Numeric Keypad Problems
ProblemProbable CauseSolution(s)
Embedded numeric...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 31
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving PC Card Problems
The following table lists some common causes and solutions for PC card problems.
Solving PC Card Problems
ProblemProbable CauseSolution(s)
When turned on, the 
Notebook does not 
beep when a PC card is 
inserted.Card is not inserted properly. Ensure that the card is inserted in 
the correct orientation.
PC card beeps are disabled.Double-click the...

32 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
The card conflicts with a serial 
device.See Specifications to verify 
address.
The card is not supported. Use supported cards only.
Modem network PC 
Card does not work.Network driver is not installed 
or is not set up properly.Install driver.
Telephone cord is not properly 
connected.Verify telephone connection.
Memory or storage 
card does not work.SRAM and flash...

PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIESTROUBLESHOOTING 33
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Power Problems
See also Solving Battery Pack/Gauge Problems in this section.
Solving Power Problems
ProblemProbable CauseSolution(s)
Notebook will not turn 
on and the battery 
pack is not inserted.Notebook is not connected to 
a power source.Insert battery or connect an 
external power source.
Power cords to the external 
power source are unplugged.Ensure that...