Lenovo 1706KEU - ThinkPad X60 1706, Troubleshooting Manual

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Problem: The
critical low-battery error
message is displayed, and the computer immediately
turns off.
Solution: The battery power is getting low. Connect the ac adapter to the computer, or replace the
battery with a fully charged one.
Problem: The computer enters standby mode immediately after Power-on self-test (POST) (the
standby indicator light turns on).
Solution: Make sure that:
v
The battery is charged.
v
The operating temperature is within the acceptable range. Refer to “Specifications” on
page 50.
If these items are correct, have the computer serviced.
Problem: When you take action to return from standby mode, the computer display remains
blank.
Solution:
Check whether an external monitor was disconnected or turned off while the computer
was in standby mode. If you disconnected or turned off the external monitor, connect it
or turn it on before resuming the computer from the standby mode. When resuming the
computer from the standby mode without attaching the external monitor or turning it
on, and the computer display remains blank, press Fn+F7 to bring up the computer
display.
Note: If you use the Fn+F7 key combination to apply a presentation scheme, press
Fn+F7 at least three times in three seconds, and the image is displayed on the computer
screen.
Problem: The computer enters standby mode unexpectedly.
Solution: If the processor overheats, the computer automatically enters standby mode to allow the
computer to cool and to protect the processor and other internal components. Also,
check the settings for standby mode, using Power Manager.
Computer screen problems
Problem: Incorrect characters appear on the screen.
Solution: Did you install the operating system or application program correctly? If they are
installed and configured correctly, have the computer serviced.
Problem: Missing, discolored, or bright dots appear on the screen every time you turn on your
computer.
Solution: This is an intrinsic characteristic of the TFT technology. Your computer’s display contains
multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright
dots on the screen might exist all the time.
Solving computer problems
20
ThinkPad
®
X60 Service and Troubleshooting Guide