Lenovo ThinkPad 560E ThinkPad 560X Hardware Maintenance Manual (Oct 1997) - Page 37

Diskette Drive Checkout, Keyboard or Auxiliary Input Device Checkout, FDD-1

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Diskette Drive Checkout Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write-enabled, nondefective 2HD diskette is required. FDD-1 represents an external diskette drive attached through the external diskette drive connector. FDD-2 represents the external diskette drive attached to the port replicator. Attention Make sure the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail. Do the following to select the test device. See "Running the Diagnostics" on page 47 for details. 1. Go to the advanced diagnostic mode by pressing Ctrl+A from the test menu of the Easy-Setup. 2. Click on Exit twice. 3. Click on FDD-1 or FDD-2 to start the test. 4. Insert the blank diskette when instructed and follow the instructions on the screen. 5. If the controller test detects an error, FRU code 10 appears. Replace the system board. 6. If the controller test runs without errors, the drive read/write tests start automatically. If a drive test detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears. If the diskette itself is known to be good, replace the drive. 7. If the FDD-2 test detects an error, move the drive to the computer's diskette drive connector directly, if possible, and test it again as FDD-1. If no errors occur in the FDD-1 position, the drive is not defective. Go to "Port Replicator Checkout" on page 29 to isolate the port replicator problem. Keyboard or Auxiliary Input Device Checkout Remove the external keyboard if the internal keyboard is to be tested. If the internal 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 system board. If the keyboard cable connection is correct, run the Keyboard Test. See "Running the Diagnostics" on page 47 for details. ThinkPad 560X (2640-60x, 70x) 27

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Diskette Drive Checkout
Do the following to isolate the problem to a controller,
drive, or diskette.
A scratch, write-enabled, nondefective
2HD diskette is required.
FDD-1
represents an external diskette drive attached
through the external diskette drive connector.
FDD-2
represents the external diskette drive attached to the port
replicator.
Attention
Make sure the diskette does not have more than one
label attached to it.
Multiple labels can cause damage
to the drive or cause the drive to fail.
Do the following to select the test device.
See “Running
the Diagnostics” on page
47 for details.
1.
Go to the advanced diagnostic mode by pressing
Ctrl
+
A
from the test menu of the Easy-Setup.
2.
Click on
Exit
twice.
3.
Click on
FDD-1
or
FDD-2
to start the test.
4.
Insert the
blank
diskette when instructed and follow
the instructions on the screen.
5.
If the controller test detects an error, FRU code 10
appears.
Replace the system board.
6.
If the controller test runs without errors, the drive
read/write tests start automatically.
If a drive test
detects an error, FRU code 50 for FDD-1 or 51 for
FDD-2 appears.
If the diskette itself is known to be
good, replace the drive.
7.
If the FDD-2 test detects an error, move the drive to
the computer's diskette drive connector directly, if
possible, and test it again as FDD-1.
If no errors occur in the FDD-1 position, the drive is
not defective.
Go to “Port Replicator Checkout” on
page
29 to isolate the port replicator problem.
Keyboard or Auxiliary Input Device
Checkout
Remove the external keyboard if the internal keyboard is to
be tested.
If the internal 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 system board.
If the keyboard cable connection is correct, run the
Keyboard Test.
See “Running the Diagnostics” on
page
47 for details.
ThinkPad 560X
(2640-60x, 70x)
27