Compaq presario 1400 series User Manual
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PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIESTROUBLESHOOTING 21 Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Continued Solving Battery Pack/Gauge Problems (Continued) ProblemProbable CauseSolution Battery has partially self-discharged.Recharge the battery. Discharge the battery completely, and then recharge it. Power management is disabled.Set a power management level in Computer Setup. An external device or PC card is draining the battery.Turn off or disconnect external devices when not in use. Battery is warm to the touch after charging.Normal warming has occurred due to charging.No action is required. Battery pack operating time is far less than the documented average operating time.Power management is turned off or disabled.Enable power management in Computer Setup and in Windows Power Properties. An external device or PC card is draining the battery.Turn off or disconnect external devices when not in use.
22 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving DVD or CD Drive Problems Some causes and solutions for common DVD or CD drive problems are listed in the following table. Solving Battery Pack/Gauge Problems (Continued) ProblemProbable CauseSolution Battery pack has partially self- discharged.Condition the battery pack by fully charging, fully discharging, then fully recharging again. To maintain the charge, leave battery packs in the Notebook when it is connected to external power. If the Notebook is disconnected from external power for more than two weeks, remove battery packs from the Notebook to reduce the discharge rate. Battery pack is being exposed to high temperatures or extremely cold temperatures.Keep the battery pack within the recommended temperature range for operation or storage. • Operating Range: 50 º F to 104º F (10º C to 40º C) • Storage Range: -4º F to 86º F (-20º d C to 30º C) Recharge the battery pack. Solving DVD or CD Drive Problems ProblemProbable CauseSolution DVD or CD drive cannot read a compact disc.Disc is upside down or improperly inserted in the DVD or CD drive.Open the loading tray, place the compact disc in tray (label side up), then close tray. CD is CD Plus or Pregap/Track 0 type.Cannot read these types of CDs in 24X. Remove the CD.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIESTROUBLESHOOTING 23 Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Diskette Drive Problems Some causes and solutions for common diskette drive problems are listed in the table below: Solving Diskette Drive Problems ProblemProbable CauseSolution Diskette drive cannot write to a diskette.Diskette is write-protected. Disable the diskette’s write- protect feature or use a diskette that is not write-protected. Notebook is writing to the wrong drive.Check the drive letter in the path statement. Not enough space is left on the diskette.Use another diskette. Drive error has occurred.Run Computer Checkup from the Compaq Diagnostics diskette. Diskette is not formatted. Format the diskette. At the system prompt, enter FORMAT A: Cannot boot from diskette.Bootable diskette is not in drive A.Put the bootable diskette in drive A. Diskette boot has incorrect setting in Computer Setup.Run Computer Setup and set diskette as first to boot.
24 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Display Problems This section lists some causes and solutions for common Notebook 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. To do so, complete the following steps: 1. Turn off the monitor. 2. Turn off the Notebook. 3. Disconnect the monitor signal cable from the Notebook. 4. Turn on the monitor and allow it to warm up for one minute. The display should appear white. On the left and right sides of the screen, a narrow black border may also be present. If the display screen indicates either of these patterns, the monitor is working properly. Solving Display Problems ProblemProbable CauseSolution Screen is dim. Brightness control is set too low.Adjust the Brightness of the display by using Fn+F7 or Fn+F8. Notebook screen is in direct light.Tilt display or move Notebook. Screen is blank. Screen save was initiated by Power Management due to lack of user activity.Press any key or touch the TouchPad. Display has overheated.I f th e Not ebo ok is i n di rect su nl ight , move i t t o shaded area and allow it to cool off. Display is blank and the Suspend icon is flashing.System is in Suspend mode. Press any key or touch the TouchPad. Internal display is blank, but the screen on an external monitor displays information.Display function was switched to the external monitor.Use Fn+F3 to switch between LCD or CRT. Internal display flashes or has garbled characters when the Notebook is connected to an external monitor.Used 1024 x 768 or higher resolution on external monitor and toggled back to internal display, which supports up to 800 x 600.Restart the Notebook. Continued
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIESTROUBLESHOOTING 25 Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Continued Solving Display Problems ProblemProbable CauseSolution The light tubes on the edge of the display panel do not light up, and the Power-On Self-Test (POST) completes when the unit is powered up.**Improper backlight or display cable connectionsReplace the display assembly. Defective inverter boardReplace the display assembly. Defective display cable Replace the display assembly. Defective display panelReplace the display assembly. Defective system board Replace the system board. The light tubes on the edge of the display panel do not light up, and the Power-On Self- Te s t ( P O S T ) d o e s n o t complete when the unit is powered up.**Defective system boardReplace the system board. Backlight (brightness) cannot be adjusted with Fn+F7 or Fn+F8.Improper display cable connections1. Reseat the display cable to the system board. 2. Replace the display assembly. Defective inverter boardReplace the display assembly. Defective display cable Replace the display assembly. Defective system boardReplace the system board. **This problem indicates that the backlight or its power circuitry has failed. Since you cannot observe the POST results on the display panel when the backlight is not functioning, connect the unit to an external monitor before powering it up. If an external monitor is not available, confirm that POST completes by opening and closing the display, listening for the single or double beep and watching for the icons to turn on at the front of the Notebook.
26 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Display Problems (Continued) ProblemProbable CauseSolution The display panel has a continuous pattern across it (for example, “jailbars” pattern), has a single color on it, or has garbled graphics across the entire panel. This failure occurs across the entire panel, not just in one section.Improper display cable connectionsReseat the display cable to the system board and the display assembly until the problem is solved. Defective display cableReplace the display assembly. Defective inverter board Replace the display assembly. Defective system boardReplace the system board. A single line, small group of lines, or block appears on the display panel. This failure occurs in only one section of the display panel.Defective display panel Replace the display assembly. Note: To perform a “self-test” on an external VGA color or monochrome monitor, verify the following: The screen should appear white. On the left and right sides of the screen, a narrow black border may also be present. If the display screen indicates either of these patterns, the monitor is working properly.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIESTROUBLESHOOTING 27 Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Hard Drive Problems Some causes and solutions for common hard drive problems are listed in the table below. Ä ÄÄ Ä CAUTION: To prevent loss of information, always maintain an up-to-date backup file on the hard drive at all times, in case of errors or failures. Solving Hard Drive Problems ProblemProbable CauseSolution Reading the hard drive takes an usually long time after restarting the Notebook.System entered Hibernation due to low-battery condition and is now exiting from it.Give the system time to restore the previously saved data to its exact state before Hibernation. Hard drive error occurs.Hard drive has bad sectors or has failed.Run Computer Checkup. Hard drive does not work.Hard drive is not seated properly.Tu r n o f f t h e N o t e b o o k , disconnect it from the electric outlet, and remove the battery pack. Remove and reinstall the hard drive.
28 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Hardware Installation Problems Some causes and solutions for common hardware installation problems are listed in following table. Solving Hardware Installation Problems ProblemProbable CauseSolution A new device is not recognized as part of the Notebook system.Cable(s) of the new external device are loose or power cables are unplugged.Ensure that all cables are properly and securely connected. Power switch of new external device is not turned on.Turn off the Notebook, turn on the external device, then turn on the Notebook to integrate the device with the Notebook system. Device is not seated properly.Turn off the Notebook and reinsert the device.
PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIESTROUBLESHOOTING 29 Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Keyboard and Numeric Keypad Problems Some causes and solutions for common keyboard and numeric keypad problems are listed in the following table. Solving Keyboard/Numeric Keypad Problems ProblemProbable CauseSolution Embedded numeric keypad on Notebook keyboard is disabled.Num Lock function is not enabled.Press the Shift + NumLk keys to enable the Num Lock function and embedded numeric keypad. The Num Lock icon on the status panel turns on. Embedded numeric keypad is disabled and Num Lock function is on.External numeric keypad is connected to the Notebook.Disconnect the external numeric keypad from the Notebook.
30 TROUBLESHOOTINGPRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1400 SERIES Presario 1400 Series Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340, XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356 Solving Memory Problems Some causes and solutions for common memory problems are listed in the table below. Solving Memory Problems ProblemProbable CauseSolution Memory count during Power-On Self-Test (POST) is incorrect.Optional memory expansion card is installed incorrectly, is incompatible with the Notebook, or is defective.Ensure that the optional memory expansion card is installed correctly. “Out of Memory” message is displayed on the screen, or insufficient memory error occurs during operation.System ran out of memory for the application.Check the application documentation for memory requirements. Install additional memory. Too many TSR (terminate- and-stay-resident) applications are running.Remove from memory any TSR applications you do not need.