IBM ThinkPad R40 Hardware Maintenance Manual page 41

If an error code appears, go to "Symptom-to-FRU
index" on page 53.
On the first screen, select the model and press Enter.
Follow the instructions on the screen.
2. The main panel of PC-Doctor appears.
3. Select Diagnostics with the arrow keys, and press
Enter.
A pull-down menu appears. (Its exact form depends on
the model.)
The options on the test menu are as follows:
Diagnostics
v Run Normal Test
v Run Quick Test
v CPU/Coprocessor
v Systemboard
v Video Adapter
v Serial Ports
v Parallel Ports
v Fixed Disks
v Diskette Drives
v Other Devices
v ZIP Drive
v LS-120/240 Drive
v Wireless LAN
v Memory Test – Full
v Memory Test – Quick
Notes:
v In the Keyboard test in Interactive Tests, the Fn key is
scanned only once. Each key should be held down for at least
2 seconds; otherwise, it cannot be sensed.
v Video Adapter test supports only the LCD display on
theThinkPad computer. Before running PC-Doctor DOS, detach
the external monitor.
v To test ZIP Drive or LS-120/240 Drive, each media is needed
to be inserted before start testing.
v To test Digital Signature Chip, the chip must be enabled.
v When Legacy Floppy Drives is enabled in the IBM BIOS Setup
Utility, Diskette Drives test is activated even if no legacy
diskette drive is attached to the ThinkPad computer.
Interactive Tests
v Keyboard
v Video
v Internal Speaker
v Mouse
v Joystick Test
v Diskette
v System Load
v CD-ROM/DVD Test
v Actiontec Wireless Radio
v 802.11b Wireless Radio Test
General descriptions
Checkout guide
37