Dell Inspiron 3500 - Manual (Page 72)

3-26 Dell Inspiron 3500 Portable Computer Reference and Troubleshooting Guide
4. Turn on the computer.
5. If you are using a keyboard that can be configured with various switch settings,
make sure the switch is set to PS/2, Enhanced XT/AT, or PC/AT.
The switch settings are usually on the bottom of the keyboard, sometimes
behind a panel tab. Refer to the documentation that came with the keyboard for
more information.
6. Turn off the computer, wait one minute, and then turn it on again. During the boot
routine, do the Num Lock, Caps Lock, and Scroll Lock indicators on the external
keyboard blink momentarily?
Yes. Go to step 7.
No. You may have a defective keyboard. Go to step 10.
7. Does the computer recognize the external keyboard?
Use the external keyboard to type some characters. Do they appear on the
display?
Yes. The problem is resolved.
No. Go to step 8.
8. Turn off the computer and disconnect the external keyboard from the computer.
9. Turn on the computer. Does the computer recognize the integrated keyboard?
Allow one minute for the computer to initialize its components. Then use the
computer’s integrated keyboard to type some characters. Do the characters
appear on the display?
Yes. The external keyboard may be defective. Run the Keyboard test group in the
Dell Diagnostics. If you cannot isolate the problem after running the diagnostics,
call Dell for technical assistance.
No. Go to step 10.
10. Call Dell for technical assistance.
See Chapter 5, “Getting Help,” for instructions.