Diskette Drive Problems - Compaq Presario 5600 Series Maintenance & Service Manual

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Jumpers & Switches
Troubleshooting without Diagnostics
If you encounter some minor problem with the computer or software application, go through the
following checklist for possible solutions before running any of the Diagnostic utilities:
Is the computer connected to a working power outlet?
Is the computer turned on and the power light illuminated?
Are all cables connected properly and seated?
Are all of the necessary device drivers installed?
Is the CONFIG.SYS file correct?
Is the AUTOEXEC.BAT file (MS-DOS) or DOSSTART.BAT file correct?
Was a non-bootable diskette loaded in the diskette drive at power-up?
Are all CMOS settings correct?
Click on a selection below identify some quick checks for common problems.
Power
Diskette Drive
Problem
Computer will not turn on
Computer does not automatically
display the date and time
Computer does not beep during POST
Computer powered off automatically
Top
Problem
Diskette drive light stays on
Diskette drive cannot write to a
diskette
Diskette drive cannot read a diskette
Top
Problem
Characters are dim
Screen is blank
Garbled characters on the screen
are mixed with text
Monitor overheats
Cursor will not move using the
arrow keys on the numeric keypad
Top
Problem
Hard drive error occurs
Disk transaction problem
Drive not found
Nonsystem disk message
Hard drive operation seems slow
Hard drive activity light is not on,
or stays on without blinking
Top
Problem
Cannot read compact disc
Cannot eject compact disc
CD drive devices are not detected;
driver is not loaded
Top
Problem
Cannot read DVD disk
DVD does not work in the DOS mode.
Cannot eject DVD disk
DVD drive devices are not detected;
driver is not loaded
Proper drivers are not loaded.
Top
Problem
USB device does not work with the
system.
Top
Maintenance & Service Guide
Presario 5600 Series Personal Computers
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Preface Product Description
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Specifications
Monitor
Hard Drive
Solutions for Power Problems

Diskette Drive Problems

Solutions for Monitor Problems
Solutions for Hard Drive Problems
Solutions for CD Drive Problems
Solutions for DVD Drive Problems
Solutions for USB Problems
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Troubleshooting
& Replacement
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Connector Pins
CD Drive
DVD Drive
Possible Solution
Ensure that the computer is connected to a working
power source.
The real-time clock (RTC) battery may need to be
replaced. See Removal and Replacement
Procedures.
The speaker volume may have been turned down.
Push the volume control buttons on the computer
and adjust the volume or select the Volume option
from the Control Panel.
1. The unit may be in Sleep. If the amber light on
the front bezel is on, then the unit is in Sleep.
2. The unit temperature may have been exceeded.
Check the fan for function and blockage.
Possible Solution
1. Diskette may be damaged.
From the Windows desktop, click on the Start
button. Choose Programs=>Accessories=> System
Tools=>Scandisk to check for problems.
2. Diskette may be installed incorrectly. Remove the
diskette and reinsert.
3. Software program may be damaged. Check the
program diskettes.
1. Diskette is not formatted. Format the diskette.
2. Diskette is write-protected. Either use another
diskette that is not write-protected, or disable the
write protection on the diskette.
3. Writing to the wrong drive. Check the drive letter
in your path statement.
4. Not enough space is left on the diskette. Use
another diskette to write the information.
1. Diskette is not formatted. Format the diskette.
2. Using the wrong diskette type for the drive type.
Use a diskette that is compatible with the drive.
3. Reading the wrong drive. Check the drive letter in
your path statement.
4. Diskette drive has been disabled by Setup. Run
Setup and enable the diskette drive.
Possible Solution
The brightness control is not set properly. Adjust the
brightness control.
1. A screen-blanking (energy-saving) utility could be
installed. Press any key. If the display reappears,
you have a screen-blanking utility installed.
2. The brightness needs adjusting. Adjust the
brightness control.
3. Screen saver has been initiated. Press any key or
move the mouse to light the screen.
4. System is in Sleep mode. Press the Sleep button
to wake up.
The ANSI.SYS driver is not in the CONFIG.SYS file.
Add the ANSI.SYS driver to the CONFIG.SYS file by
inserting the following line:
DEVICE = C:\ANSI.SYS
There is not enough ventilation space for proper
airflow. Leave at least 3 inches (7.6 cm) of
ventilation space. Also, be sure there is nothing on
top of the monitor to obstruct airflow.
1. The Num Lock key is on. Press the Num Lock key.
The Num Lock light should not be on when you want
to use the arrow keys.
2. Possible application error. Restart the computer.
Possible Solution
Hard disk has bad sectors or has failed. Run Setup.
Reformat the hard disk.
The directory structure is bad or there is a problem
with a file.
From the Windows desktop, click on the Start
button. Choose Programs=>Accessories => System
Tools=>Scandisk to check for problems. If problems
exist, run Scandisk and click on the "Automatically
fix errors" checkbox at the bottom to correct the
problems. If a large number of lost allocation units
is found, click on the Start button. Choose
Programs=> Accessories=>System Tools=>Disk
Defragmenter.
Cable could be loose. Check cable connections.
1. The system is trying to start from a diskette that
is not bootable. Remove the diskette from the
diskette drive.
2. The system is trying to start from the hard drive
but the hard disk has been damaged. Insert a
bootable diskette into the diskette drive and restart
the computer with Ctrl+Alt+Del.
3. Diskette boot has been disabled in Setup. Run
Setup and enable diskette boot.
The hard disk files may be fragmented.
From the Windows desktop, click on the Start
button. Choose Programs =>Accessories è System
Tools =>Scandisk to check for problems. If
problems exist, run Scandisk and checkmark the
"Automatically fix errors" box at the bottom to
correct the problems. If a large number of lost
allocation units is found, click on the Start button.
Choose Programs => Accessories=>System
Tools=> Disk Defragmenter.
The hard disk files may be fragmented.
From the Windows desktop, click on the Start
button. Choose Programs=> Accessories => System
Tools=>Scandisk to check for problems. If problems
exist, run Scandisk and checkmark the
"Automatically fix errors" box at the bottom to
correct the problems. If a large number of lost
allocation units is found, click on the Start button.
Choose Programs=> Accessories => System
Tools=>Disk Defragmenter.
Possible Solution
1. CD is not properly seated in the drive. Eject the
CD, press down on the CD firmly to correctly seat it
in the drive, then reload.
2. CD has been loaded upside down. Eject the CD,
turn it over, then reload.
3. CD may be dirty or scratched. Load another CD.
CD is not properly seated in the drive. Turn off the
computer, insert a thin metal rod into the
emergency eject hole, then push firmly (a
straightened paper clip can be used). Slowly pull the
tray out from the drive until the tray is fully
extended, then remove the CD.
1. CD drive is not connected properly. Open the
computer and check to see that the drive cable is
connected properly.
2. Ensure the correct driver is installed in
CONFIG.SYS.
3. If drive has been changed, make sure the jumper
setting is set for "Slave."
Possible Solution
1. DVD or CD is not properly seated in the drive.
Eject the DVD or CD, press down on the DVD or CD
firmly to correctly seat it in the drive, then reload.
2. DVD or CD has been loaded upside down. Eject
the disk, turn it over, then reload.
3. DVD or CD disk may be dirty or scratched. Load
another DVD disk.
Proper drivers are not loaded. Restart the system
and make sure the DVD drive drivers are loaded.
1. The system is in the Sleep mode. Press the Power
button to bring the system back to full power, then
eject the DVD.
2. The DVD, diskette, or hard drive was active when
attempting to eject the DVD. Wait until all drive
activity ends (the CD/hard drive light and diskette
drive light will go out), then try to eject the DVD.
3. DVD disk is not properly seated in the drive. Turn
off the computer, insert a thin metal rod into the
emergency eject hole (a straightened paper clip can
be used), then push firmly. Slowly pull the tray out
from the drive until the tray is fully extended, then
remove the DVD disk.
1. DVD drive is not connected properly. Open the
computer and check to see that the drive cable is
connected properly.
2. Ensure the correct driver is installed in
CONFIG.SYS.
3. If drive has been changed, make sure the jumper
setting is set for "Slave."
Restart the system and make sure the DVD drive
drivers are loaded.
Possible Solution
The USB device and the system may use different
USB architectures. Ensure that the USB device and
the system share the same USB architecture. (UHCI-
compliant devices will only work with a UHCI-
compliant system, and OHCI-compliant devices will
only work with a OHCI-compliant system).
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Illustrated Parts
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Power Cord Requirements
USB
Resolving Hardware
conflicts
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Removal