Lenovo ThinkPad L530 Hardware Maintenance Manual - Page 40

Power system checkout, Checking the ac power adapter, USB HDD, ATAPI CDx - docking station

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2. Turn on the computer. If the computer cannot be turned on, go to "Power system checkout" on page 34, and check the power sources. If an error code is displayed, go to "Symptom-to-FRU index" on page 41 for error code descriptions and troubleshooting hints. 3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. 4. Use the arrow keys to select USB HDD and then press Enter. The diagnostic program will be launched automatically. 5. Follow the instructions on the screen to use the diagnostic program. • If you have created the bootable diagnostic medium on a CD, do the following: 1. Turn on the computer. If the computer cannot be turned on, go to "Power system checkout" on page 34, and check the power sources. If an error code is displayed, go to "Symptom-to-FRU index" on page 41 for error code descriptions and troubleshooting hints. 2. Insert the CD into the optical drive. 3. Restart the computer. 4. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot Menu window opens, release the F12 key. 5. Use the arrow keys to select ATAPI CDx (x: 0, 1, ...) and then press Enter. The diagnostic program will be launched automatically. 6. Follow the instructions on the screen to use the diagnostic program. Power system checkout To verify a symptom, do the following: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the ac power adapter. 4. Check that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the ac power 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 power adapter" on page 34 • "Checking operational charging" on page 35 • "Checking the battery pack" on page 35 • "Checking the backup battery" on page 36 Checking the ac power adapter You are here because the computer fails only when the ac power adapter is used. • If the power problem occurs only when the docking station or the port replicator is used, replace the docking station or the port replicator. • If the power-on indicator does not turn on, check the power cord of the ac power adapter for correct continuity and installation. • If the computer does not charge during operation, go to "Checking operational charging" on page 35. To check the ac power adapter, do the following: 1. Unplug the ac power adapter cable from the computer. 2. Measure the output voltage at the plug of the ac power adapter cable. See the following figure: 34 Hardware Maintenance Manual

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2. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page
34, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 41 for error code descriptions and troubleshooting hints.
3. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot
Menu window opens, release the F12 key.
4. Use the arrow keys to select
USB HDD
and then press Enter. The diagnostic program will be
launched automatically.
5. Follow the instructions on the screen to use the diagnostic program.
•
If you have created the bootable diagnostic medium on a CD, do the following:
1. Turn on the computer. If the computer cannot be turned on, go to “Power system checkout” on page
34, and check the power sources. If an error code is displayed, go to “Symptom-to-FRU index” on
page 41 for error code descriptions and troubleshooting hints.
2. Insert the CD into the optical drive.
3. Restart the computer.
4. When the ThinkPad logo is displayed, repeatedly press and release the F12 key. When the Boot
Menu window opens, release the F12 key.
5. Use the arrow keys to select
ATAPI CDx
(x: 0, 1, ...) and then press Enter. The diagnostic program
will be launched automatically.
6. Follow the instructions on the screen to use the diagnostic program.
Power system checkout
To verify a symptom, do the following:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the ac power adapter.
4. Check that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the ac power 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 power adapter” on page 34
•
“Checking operational charging” on page 35
•
“Checking the battery pack” on page 35
•
“Checking the backup battery” on page 36
Checking the ac power adapter
You are here because the computer fails only when the ac power adapter is used.
•
If the power problem occurs only when the docking station or the port replicator is used, replace the
docking station or the port replicator.
•
If the power-on indicator does not turn on, check the power cord of the ac power adapter for correct
continuity and installation.
•
If the computer does not charge during operation, go to “Checking operational charging” on page 35.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage at the plug of the ac power adapter cable. See the following figure:
34
Hardware Maintenance Manual