Lenovo ThinkPad 380ED TP 380Z Hardware Maintenance Manual (August 1998) for us - Page 13

Fan Checkout, Keyboard or Auxiliary Input Device Checkout

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9. If no error occurs when you test the formatted diskette, suspect the diskette that the customer used when reporting the problem. Fan Checkout To check the fan, listen for the fan. If you cannot hear it running at power-on, replace the fan. If you can hear it running but not steadily, run the diagnostic test as follows: 1. Start Easy-Setup. 2. Click on Test. 3. Press Ctrl+A to enter the advanced diagnostic mode. The ThinkPad Connection windows appear. 4. Click on Exit. The keyboard layout appears on the screen. 5. Click on Exit again. 6. Click on System Board then press Enter to run the test. Follow the instructions that appear on the screen. If the test detects a fan problem, replace it. Keyboard or Auxiliary Input Device Checkout Remove any external keyboard before testing the built-in keyboard. If the keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector on the DC/DC card. If the keyboard cable connection is correct, check the DC/DC card. If the tests do not detect a keyboard problem, run the keyboard test by doing the following: 1. Go to the diagnostic menu by selecting Test in the Easy-Setup menu. 2. Press Ctrl+A to enter to the advanced diagnostic mode. The ThinkPad FRU Connections window appears. (If Ctrl+A does not work, triple-click on the icon on the right bottom corner of the basic diagnostic window.) 3. Make sure that the keyboard connection is Connected; then press Esc to exit the screen. A layout of the keyboard appears on the screen. 4. Check that when each key is pressed, the key's position on the keyboard layout on the screen changes to a black square. Note: When the Fn key is pressed, a black square appears briefly. 5. Press Ctrl+Pause to end the test. If the tests detect a keyboard problem, do the following one at a time: ThinkPad 380Z 11

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9.
If no error occurs when you test the formatted
diskette, suspect the diskette that the customer used
when reporting the problem.
Fan Checkout
To check the fan, listen for the fan.
If you cannot hear it
running at power-on, replace the fan.
If you can hear it
running but not steadily, run the diagnostic test as follows:
1.
Start Easy-Setup.
2.
Click on
Test
.
3.
Press
Ctrl
+
A
to enter the advanced diagnostic mode.
The ThinkPad Connection windows appear.
4.
Click on
Exit
.
The keyboard layout appears on the
screen.
5.
Click on
Exit
again.
6.
Click on
System Board
then press
Enter
to run the
test.
Follow the instructions that appear on the screen.
If
the test detects a fan problem, replace it.
Keyboard or Auxiliary Input Device
Checkout
Remove any external keyboard before testing the built-in
keyboard.
If the keyboard does not work or an unexpected character
appears, make sure that the flexible cable extending from
the keyboard is correctly seated in the connector on the
DC/DC card.
If the keyboard cable connection is correct, check the
DC/DC card.
If the tests do not detect a keyboard problem, run the
keyboard test
by doing the following:
1.
Go to the diagnostic menu by selecting
Test
in the
Easy-Setup menu.
2.
Press
Ctrl
+
A
to enter to the advanced diagnostic
mode.
The ThinkPad FRU Connections window appears.
(If
Ctrl
+
A
does not work, triple-click on the icon on the
right bottom corner of the basic diagnostic window.)
3.
Make sure that the keyboard connection is
Connected
; then press
Esc
to exit the screen.
A layout of the keyboard appears on the screen.
4.
Check that when each key is pressed, the key's
position on the keyboard layout on the screen
changes to a black square.
Note:
When the
Fn
key is pressed, a black square
appears briefly.
5.
Press
Ctrl
+
Pause
to end the test.
If the tests detect a keyboard problem, do the following
one at a time:
ThinkPad 380Z
11