Checkout guide
Use the following procedures as a guide in identifying and
correcting problems with the ThinkPad computer.
Note:
The diagnostic tests are intended to test only IBM
products. The use of non-IBM products, prototype
cards, or modified options can lead to false indi-
cations of errors and invalid system responses.
1. Identify the failing symptoms in as much detail as
possible.
2. Verify the symptoms. Try to re-create the failure by
running the diagnostic test or by repeating the opera-
tion.
Testing the computer
The ThinkPad computer has a test program called
PC-Doctor DOS (hereafter called PC-Doctor). You can
detect errors by running the diagnostics test included in
PC-Doctor. This section is an overview of the procedure.
For details that depend on model-unique functions, refer to
“Product overview” on page 34
For some possible configurations of the computer,
PC-Doctor might not run correctly. To avoid this problem,
you need to initialize the computer setup by running the
IBM BIOS Setup Utility before you run PC-Doctor. In the
IBM BIOS Setup Utility screen, press
F9
,
Enter
,
F10
, then
Enter
.
Note:
When you initialize the computer configuration,
some devices are disabled, such as the serial port.
If you test one of these devices, you will need to
enable it by using PS2.EXE.
PC-Doctor cannot be used to test a device that is in the
docking station. If a device is in the Ultrabay 2000 or con-
nected to the USB connector of the docking station,
remove it and install it in the Ultrabay 2000 or connect it to
the USB connector of the computer. Then test it with
PC-Doctor.
To run the test, do as follows:
Note:
In the following procedure, you can select an item
not only with the arrow keys, but also with the
TrackPoint. Instead of pressing
Enter
, click the left
button.
1. Insert the PC-Doctor disk into the diskette drive; then
power on the computer.
If the computer cannot be powered on, go to “Power
system checkout” on page 29 and check the power
sources.
If an error code appears, go to “Symptom-to-FRU
index” on page 38.
General
descriptions
27
Summary of Contents for ThinkPad X21 2660
Page 1: ...IBM Mobile Systems ThinkPad X21 2660 2661 2662 Hardware Maintenance Manual February 2001 ...
Page 2: ...i ...
Page 23: ...18 ThinkPad X21 ...
Page 60: ...1070 Mini PCI adapter Battery pack 1010 Keyboard assembly 1050 6 ThinkPad X21 55 ...
Page 62: ...1090 LCD assembly Battery pack 1010 Keyboard assembly 1050 1 ThinkP ad 2 ThinkPad X21 57 ...
Page 71: ...Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm 66 ThinkPad X21 ...
Page 73: ...1 Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm 68 ThinkPad X21 ...
Page 85: ...80 ThinkPad X21 ...
Page 87: ...IBM Part Number 19K6850 Printed in U S A S1ðL 9626 ðð ...