Dell Latitude LM - Manual (Page 48)

3-14 Dell Latitude LM Reference and Troubleshooting Guide
8. Does the battery status indicator in the status
display panel indicate that the battery is fully
charged?
Yes. The problem is resolved. Turn on the computer.
No. You may have a defective battery. Go to step 9.
9. If a fully charged spare battery is available,
install it in the computer.
10. Turn on the computer. Does the battery status
indicator appear in the status display panel?
Yes. Your original battery is defective. Call Dell for
technical assistance. (See Chapter 5, “Getting Help,”
for instructions.)
No. Call Dell for technical assistance. (See Chap-
ter 5, “Getting Help,” for instructions.)
No Power to a Part of the Computer
If the power indicator shows that your computer is
receiving power, but the display remains blank, part of
your computer is probably not receiving power. To trou-
bleshoot this problem, make a copy of the Diagnostics
Checklist found in Chapter 5 and fill it out as you com-
plete the following procedure:
1. Turn off the computer and peripherals, and dis-
connect them from AC power. Disconnect any
attached peripherals from the computer.
2. Make sure that the AC adapter is connected to
the computer and to AC power, or confirm that a
fully charged battery is properly seated in its
compartment.
3. Turn on the computer. Is the display on?
Allow one minute for the computer to initialize its
components before checking for signs of power.
Yes. The entire computer is receiving power; the
problem is resolved.
No. Adjust the brightness and contrast of the display.
If the display still does not show an image, call Dell
for technical assistance. (See Chapter 5, “Getting
Help,” for instructions.)
NOTE: Contrast cannot be adjusted on an active-
matrix color display.
Troubleshooting the Diskette Drive
During the power-on self-test (POST), the computer
checks the diskette drive, comparing its characteristics
with the system configuration information. (The diskette-
drive access indicator appears in the status display panel
as the computer performs this check on a diskette drive in
the options bay. If the diskette drive is being used as an
external device, the activity indicator lights up on the
front of the drive during POST.)
If the drive fails POST or if the access indicators do not
appear, make a copy of the Diagnostics Checklist found
in Chapter 5 and fill it out as you complete the following
procedure:
1. Reboot the computer by pressing
<
CTRL >< ALT >< DEL >. Does the diskette-drive
access indicator appear in the status display panel
during the boot routine (or does the activity indi-
cator light up on the external diskette drive)?
Yes. Go to step 3.
No. Go to step 2.
2. Remove and reinsert the diskette drive (or dis-
connect and reconnect the drive if used
externally). Reboot the computer. Does the dis-
kette-drive access indicator appear in the status
display panel during the boot routine?
Yes. Go to step 3.
No. Go to step 6.
3. Does the computer display a drive error message?
Yes. See Table 3-2 for an explanation of the message,
and then go to step 4.
No. Go to step 6.
4. Insert a bootable 1.44-MB diskette into the drive,
and reboot the computer.
5. Does the diskette-drive access indicator appear in
the status display panel (or on the front of the drive
if it is being used externally) during the boot rou-
tine, and does the drive boot the operating system?
Yes. The diskette drive problem has probably been
resolved. If you continue to experience trouble, call
Dell for technical assistance. (See Chapter 5, “Get-
ting Help,” for instructions.)
No. Go to step 6.