Dell Latitude LM Service Manual page 27

2-2 Dell Latitude LM Systems Service Manual
components, as instructed in the following procedure, see Chapter 4, "Remov-
ing and Replacing Parts."
CAUTION: Before you proceed with the visual inspection, ensure that
the user has saved all open files and exited all open application programs
if possible.
To perform a visual inspection, follow these steps:
1. Determine the power state of the computer.
If the display is on, go to step 2.
If the display is off, press any key to verify that the computer is not in sus-
pend or standby mode. Then proceed to step 2.
2. Turn off any attached peripherals, and then turn off the computer.
Then proceed to step 3.
3. Verify that the exterior of the computer is free of any obvious physical
damage.
4. If the computer is operating from an AC adapter, verify the following:
a. The AC adapter's AC power cable is connected to both the AC adapter
and the wall outlet. The AC adapter's LED should be on.
b. The AC adapter's DC power cable is properly connected to the com-
puter's AC adapter connector.
c. The AC adapter and cables are free of any obvious physical damage.
5. If the computer is operating from battery power, remove any installed
batteries, verify that they are free of any obvious physical damage, and
then reinsert the batteries into their respective compartments. Press the
test button located on each battery to see if there is a charge.
6. Remove the diskette drive (if installed), verify that it is free of any obvi-
ous physical damage, and then reinsert the drive into its compartment.
7. Remove any installed PC Cards from the PC card slot, verify that they
are free of any obvious physical damage, and then reinsert the card(s)
into the PC card slot.
8. If there is a memory area problem and the computer has memory mod-
ules, remove the memory modules from the main board, verify that
they are free of any obvious physical damage, and then reinstall the
modules.
9. Open the computer, and verify that it is free of any obvious physical
damage.
10. Verify that the keyboard is free of any obvious physical damage and
that its keys operate freely.
11. Verify that the touch pad and its associated buttons operate freely.