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Maintenance & Service Guide
Presario 1660 Model

MSG Index | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications
Pin Assignments
| Battery Pack Operations


Solving Minor Problems

Some minor problems and possible solutions are outlined in the following tables. If the problem appears related to a software application, check the documentation provided with the software.

Audio    Battery pack     Battery gauge      CD/DVD drive     Diskette/diskette drive      Display     Hard drive    

Hardware installation     Keyboard     Memory     PC card     Power     Printer     Touchpad/pointing device          

 

Audio Problems

Problem Probable Cause Solution(s)
Computer does not beep after the Power-On Self-Test (POST). This is typical; it indicates successful completion of the Power-On Self-Test (POST). No action is required.

 

Battery Pack and Battery Gauge Problems (see also Power Problems)

Problem Probable Cause Solution(s)
Computer won't turn on when battery pack is inserted and power cord is unplugged. Battery pack is discharged. 1. Connect the computer to an external power source and charge the battery pack.

2. Replace the battery pack with a fully charged battery pack.

Battery connectors may be bent or broken. Check the battery connectors on the system board to verify they are evenly spaced and that they are not bent or broken.
Computer is beeping and battery LED icon is blinking. Battery charge is low. Immediately save any open file(s). Then either:
  • Connect the computer to an external power source to charge the battery pack, or
  • Turn off the computer or initiate Hibernation until you can find another power source or charge the battery pack.
Computer battery LED icon (front on the unit) blinks to indicate low battery condition, but computer does not beep. Volume is turned down too low. Adjust the volume.
Battery LED icon doesn't light and battery pack won't fast charge. Battery pack is already charged. No action is necessary.
Battery pack was exposed to temperature extremes. Allow time for the battery pack to return to room temperature.
Battery pack is at end of its life. Replace battery pack.
You have to set the date and time every time you turn on the computer. RTC battery is dead. Replace the RTC battery.
Battery pack 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 using them.
Battery pack has partially self-discharged. Condition the battery pack by fully charging, fully discharging, then fully recharging it.

To maintain the charge, leave battery packs in the computer when it is connected to external power.

If the computer is disconnected from external power for more than two weeks, remove battery packs from the computer 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 ranges:
Operating: 50° F to 104° F (10° C to 40° C)
Storage: -4° F to 86° F (-20° C to 30° C )

Recharge the battery pack.

 

 

CD/DVD Drive Problems

Problem Probable Cause Solution(s)
CD / DVD drive cannot read a compact disc. Compact disc is upside down or is improperly inserted in the CD / DVD drive. Open the CD / DVD loading tray, lay the compact disc in it (label side up), then close the tray.
Trying to read a CD Plus or Pregap/Track 0 type disc with a 24x CD-ROM drive. None - these types of CD are unreadable with this drive.

 

Diskette and Diskette Drive Problems

Problem

Probable Cause

Solution(s)

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.

Computer 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:

Diskette drive cannot read a diskette.

 

 

 

The wrong type of diskette is being used.

Use the type of diskette required by the drive.

Diskette has a bad sector.

Copy files to hard drive or another diskette. Reformat bad floppy.

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.

 

 

 
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