Power System Checkout - Lenovo THINKPAD X120E Hardware Maintenance Manual

Table 1. FRU tests (continued)
FRU
Speaker
Keyboard
Hard disk drive or solid state
drive
Diskette drive
Memory
TrackPoint or pointing
device
Touch Pad

Power system checkout

To verify a symptom, do the following:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the ac adapter.
4. Check that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the ac adapter and install the charged battery pack.
7. Check that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
• "Checking the ac adapter" on page 27
26
ThinkPad X100e and X120e Hardware Maintenance Manual
Applicable test
Interactive Tests ➙ Internal Speaker
Note: Once Audio test is done, the no sound is heard this test. In this case, turn off
and turn on the computer. Then, run this test again.
1. Diagnostics ➙ Systemboard ➙ Keyboard
2. Interactive Tests ➙ Keyboard
Enter the BIOS Setup Utility (ThinkPad Setup for ThinkPad X120e) and change Serial
ATA (SATA) setting to Compatibility, and run Diagnostics ➙ Fixed Disks.
For ThinkPad X100e, you can also diagnose the drive without starting up the operating
system. To diagnose the drive from the BIOS Setup Utility, do as follows:
1. Remove any diskette from the diskette drive, and then turn off the computer.
2. Turn on the computer.
3. While the message, "To interrupt normal startup, press the blue ThinkVangate
button," is displayed at the lower left of the screen, press F1 to enter the BIOS
Setup Utility.
4. Using cursor keys, select HDD diagnostic program. Press enter.
5. Using cursor keys, select Main hard disk drive.
6. Press Enter to start the diagnostic program.
1. Diagnostics ➙ Diskette Drives
2. Interactive Tests ➙ Diskette
1. If two DIMMs are installed, remove one of them and run Diagnostics ➙ Advanced
Memory Tests.
2. If the problem does not recur, return the DIMM to its place, remove the other one,
and run the test again.
If the TrackPoint does not work, check the configuration as specified in the BIOS Setup
Utility (ThinkPad Setup for ThinkPad X120e). If the TrackPoint is disabled, select
Automatic to enable it.
After you use the TrackPoint, the pointer may drift on the screen for a short time. This
drift can occur when a slight, steady pressure is applied to the TrackPoint pointer.
This symptom is not a hardware problem. If the pointer stops after a short time, no
service action is necessary.
If enabling the TrackPoint does not correct the problem, continue with the following:
• Interactive Tests ➙ Mouse
If the Touch Pad does not work, check the configuration as specified in the BIOS
Setup Utility (ThinkPad Setup for ThinkPad X120e). If the Touch Pad is disabled, select
Automatic to enable it. If enabling the Touch Pad does not correct the problem,
continue with the following:
• Interactive Tests ➙ Mouse