Activity - Compaq 2200 Series Maintenance And Service Manual

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TROUBLESHOOTING
Clearing CMOS
Troubleshooting Without Diagnostics (continued)
Power-On Self
Test (POST)
Configuration
Diagnostic error
codes
Problem
Troubleshooting
without
Hard drive error
diagnostics
occurs.
l
Drive not found.
Disk transaction
problem.
Nonsystem disk
message.
Hard drive
operation seems
slow
Hard drive
activity light is
not on,
or stays on
without blinking.
Problem
A new device is
not recognized
as part of the
computer
system.
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.
Maintenance and Service Guide
Compaq 2200 and 2400 Series Computers
Troubleshooting
Probable cause(s)
Hard disk has bad
sectors or has failed.
Cable could be
loose.
Either the directory
structure is bad or
there is a problem
with a file.
The system is trying
to start from a
diskette that is not
bootable.
The system is trying
to start from the
hard drive but the
hard disk has been
damaged.
Diskette boot has
been disabled in
Computer Setup.
The hard disk files
may be fragmented.
OR
Probable cause(s)
When the system advised you of
changes to the configuration,
you did not save the changes.
The system may not have
automatically recognized the
new device.
The cables for the new external
device are loose, or the power
cables are unplugged.
The power switch for the new
external device is not turned on.
Problem Probable cause(s)
USB device The USB device and the
does not system may use
work with different USB
the system. architectures.
Problem Probable cause(s)
Diskette drive Diskette may be damaged.
light stays on.
Diskette may be installed
incorrectly.
Software program may be
damaged.
Diskette drive Diskette is not formatted.
cannot write
to a diskette.
Diskette is write-protected.
Writing to the wrong drive.
Not enough space is left on the
diskette.
Diskette drive Diskette is not formatted.
cannot read a
diskette.
Using the wrong diskette type for
the drive type.
Reading the wrong drive.
Diskette drive has been disabled
by Computer
Problem Probable cause(s)
Characters are The brightness control is not
dim. set properly.
Screen is A screen-blanking utility could
blank. be installed.
The brightness needs
adjusting.
Screen save has been
initiated.
Garbled The ANSI.SYS driver is not in
characters on the CONFIG.SYS file.
the screen
are mixed with
text.
Monitor There is not enough
overheats. ventilation space for proper
airflow.
Cursor will not The Num Lock key is on.
move using the
arrow keys on
the numeric
keypad.
There is a possible application
error.
Removal & Replacement
Jumper & Switch Information
Hard drive
Possible solution
Run Computer Checkup (TEST)
Setup. Reformat the hard disk.
Check cable connections.
From the desktop click on the Start menu. Choose
Program
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 menu. Choose Program
Accessories
Remove the diskette from the diskette drive.
Insert a bootable diskette into the diskette drive
and restart the computer with Ctrl+Alt+Del.
Run Computer Setup
From the desktop click on the Start menu. Choose
Program
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 menu. Choose Program
Accessories
Hardware installation
Power
Possible Solution
Ensure that the computer is connected to a power
source.
The real-time clock (RTC) battery may need to be
replaced. Click here
The speaker volume may have been turned down. Select
the Volume option from the Control Panel and adjust the
volume.
The unit temperature may have been exceeded. Check
the fan for function and blockage.
USB
Possible solution
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).
Diskette Drive
Setup.
Monitor
Illustrated Parts Catalog
Specifications
and
Accessories System Tools
System Tools Disk Defragmenter.
and enable diskette boot.
Accessories System Tools
System Tools Disk Defragmenter.
Possible solutions
Reboot the computer and follow the
instructions for saving the changes.
Run Computer Setup and identify the
new device.
Check all cables.
Turn off the computer, turn on the
external device, and then turn on the
computer to integrate the new device
with the computer.
for replacement procedures.
Possible solution
From the desktop click on the
Start menu. Choose Program
Accessories System Tools
Scandisk to check for problems.
Remove the diskette and reinsert.
Check the program diskettes.
Format the diskette.
Either use another diskette that is
not write-protected or disable the
write protection on the diskette.
Check the drive letter in your path
statement.
Use another diskette to write the
information.
Format the diskette.
Use a diskette that is compatible
with the drive.
Check the drive letter in your path
statement.
Run Computer Setup
the diskette drive.
Possible solution
Adjust the brightness control.
Press any key. If the display
reappears, you have a screen-blanking
utility installed.
Adjust the brightness control.
Press any key or move the mouse to
light the screen.
Add the ANSI.SYS driver to the
CONFIG.SYS file by adding the
following line:
DEVICE = C:\ANSI.SYS
Leave at least 3 inches (7.6 cm) of
ventilation space. Also, be sure there
is nothing on top of the monitor to
obstruct air flow.
Press the Num Lock key. The Num
Lock light should not be on when you
want to use the arrow keys.
Restart the computer.
Computer
and enable