Presario 305 Model
Before You Begin |
| Specifications |
| Parts Catalog |
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Removal Sequence |
| Troubleshooting |
| Battery Operations |
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| Index |
Product Description |
| Pin Assignments |
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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 | |||||
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Display | Hard drive | Hardware | Keyboard | Memory | |
installation | |||||
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PC card | Power | Printer | Touchpad/pointing | Infrared | |
device | |||||
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USB | Modem |
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Audio Problems
Problem | Probable Cause |
Solution(s)
Computer does not beep after the
Internal speaker does not produce sound when an external audio source is connected to the stereo
External microphone does not work.
No sound from headphones
Volume too low or too loud.
System beeps have been turned down.
Volume may be turned off or set too low.
Line input may not be connected properly.
Headphones or speakers are connected to the stereo speaker/headphone jack, which disables the internal speakers.
Volume may be muted.
Using the wrong type of microphone or microphone plug for the computer.
The microphone may not be connected properly.
Sound source not selected.
Audio settings are not set correctly.
Volume control on the computer is turned down. Volume or mixing controls set incorrectly.
Sound source not selected.
The headphones are connected to the wrong jack.
Volume or mixing controls set incorrectly.
Use the Fn+F5 hotkeys to turn up the system volume.
1.Adjust the overall volume by pressing Fn+F5 hotkeys.
2.Adjusting the sliding mixer controls by
Check line input connection.
Disconnect the headphones or speakers to enable the internal speakers.
Uncheck the mute box in the volume properties.
Check to see if you are using a monophonic electret condenser microphone with a 3.5 mm plug.
Ensure that the microphone plug is properly connected to the mono microphone jack.
Ensure that the microphone is selected as the recording source in Control Panel, Multimedia and the recording level is adjusted.
Check the audio settings for game programs.
Adjust the computer volume with the Fn+F5 hotkeys.
1.Adjust the overall volume with the Fn+F5 hotkeys.
2.Use the mixing features available by
Verify that the sound source is selected in Control Panel, Multimedia.
Check the connection.
1.Adjust the overall volume with the Fn+F5 hotkeys.
2.Check the mixing features
available by
Battery Pack and Battery Gauge Problems (see also Power Problems)
Problem | Probable Cause | Solution(s) |
Computer won't turn on Battery pack is discharged. when battery pack is
inserted and power cord is unplugged.
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 | Battery pack charge is low. |
and battery power light |
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is blinking. |
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Immediately save any open file(s). Then either:
●Connect the computer to an external power source to charge the battery pack.
●Replace the battery pack with another fully charged battery.
●Turn off the computer or initiate Hibernation until another power source or fully charged battery pack is available.
Computer battery | Volume is turned down too low. | Turn up the volume by using the Fn+F5 |
charge light blinks to |
| hotkeys. |
indicate low battery |
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condition, but computer |
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does not beep. |
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Battery charge does not last very long.
Date and time must be set every time computer is turned on.
Battery pack is warm after charging.
Battery pack will not charge.
Computer shut down and memory was lost when replacing the battery pack.
Battery is exposed to high | Put the computer in a cooler place and |
temperatures. | recharge the battery pack. |
Battery pack was exposed to | Put the computer in a warmer place and |
extremely cold temperatures. | recharge the battery pack. |
| Keep the battery pack within the recommended |
| temperature ranges: |
| Operating: 50° F to 104° F (10° C to 40° C) |
| Storage: 32° F to 86° F (0° C to 30° C ) |
Battery conservation is disabled or Reset the battery conservation level. | |
set to drain. |
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An external device is draining the | Turn off or remove any external device or PC |
battery. | Cards when not in use. |
Battery gauge may be inaccurate | Recalibrate the gauge. |
and require recalibration. |
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Real Time Clock (RTC) battery is | Restore power, then turn on the computer with |
has reached the end of its useful | the power switch. |
life. |
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| Contact your Compaq authorized service |
| provider to replace the RTC battery. |
Normal warming occurs during | No action is required. |
charging. |
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Battery pack was exposed to | Allow time for the battery pack to return to room |
temperature extremes. | temperature. |
| Keep the battery pack within the recommended |
| temperature ranges: |
| Operating: 50° F to 104° F (10° C to 40° C) |
| Storage: 32° F to 86° F (0° C to 30° C ) |
| Recharge the battery pack. |
Battery pack is already charged. | No action required. |
Battery pack has exceeded its | Use a different battery pack. |
useful life cycle. |
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Hibernation was not initiated | Work is lost. |
before removing the battery pack. |
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Battery gauge seems | The battery pack may need |
inaccurate. | calibration. |
| The battery pack has reached the |
| end of its useful life. |
Recalibrate the battery. 
Replace the battery pack.
CD/DVD Drive Problems
Problem | Probable Cause |
Drive cannot read a disc. 
Disc is not properly seated in the drive.
Disc loaded in the loading tray upside down.
Disc has a scratch on its surface.
by the computer.
Solution(s)
Open loading tray, insert the disc, then close the tray.
Open the loading tray, turn over the disc (label facing up), then close the tray.
Insert a different disc.
If you are running a version of Windows that was
If you are running a version of Windows that was not
Problem
Drive cannot write to a diskette.
Diskette drive cannot read a diskette.
System cannot start up from diskette or SuperDisk LS- 120 drive.
Diskette and Diskette Drive Problems
Probable Cause | Solution(s) |
Diskette is
Writing to the wrong drive. | Check the drive letter in the path | |
| statement. | |
Not enough space is left | Save the information to another | |
on the diskette. | diskette. | |
Drive error has occurred. | Run Computer Checkup from the | |
| Compaq Diagnostics diskette. | |
Diskette is not formatted. | Format the diskette: | |
| If you are using Windows 98: | |
| 1. | From the Windows desktop, |
| select My Computer. | |
| 2. | Select |
| 3. | Select File, then Format. |
| 4. | Fill in the appropriate |
| information, then select Start. | |
Drive is disabled. | Enable the proper drive through |
| Device Manager. |
Disable diskette write ability is Run Computer Setup. Select the
turned on.Storage icon. Make sure Disable diskette write ability is not checked.
Wrong type of diskette is | Use the type of diskette required by | |
being used. | the drive. | |
Diskette has a bad sector. | Copy files to hard drive or another | |
| diskette. Reformat bad diskette. | |
Drive error has occurred. | Run Computer Checkup from the | |
| Compaq Diagnostics diskette. | |
Diskette is not formatted. | Format the diskette: | |
| If you are using Windows 98: | |
| 1. | From the Windows desktop, |
| select My Computer. | |
| 2. | Select |
| 3. | Select File, then Format. |
| 4. | Fill in the appropriate |
| information, then select Start. | |
A bootable diskette is not in | Verify that a diskette with the | |
the drive. | necessary system files is in the | |
| drive. | |
Diskette bootability is | Enable diskette bootability in | |
disabled in Computer Setup. | Computer Setup, Security menu. | |
