Lenovo 646001U Troubleshooting Guide - Page 32

Problem, Solution

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Solving computer problems Problem: Solution: Problem: Solution: Missing, discolored, or bright dots appear on the screen every time you turn on your computer. 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. The screen is blank. v Press Fn+F7 to bring up the image. 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. v If you are using the ac adapter, or using the battery, and the battery status indicator is on (is green), press Fn+Home to make the screen brighter. v If the sleep (standby) status indicator is on (is green), press Fn to resume from the sleep (standby) mode. v If you still have the problem, do the Solution in the following problem ″The screen is unreadable or distorted." 22 ThinkPad® T61 Service and Troubleshooting Guide

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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.
Problem:
The screen is blank.
Solution:
v
Press Fn+F7 to bring up the image.
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.
v
If you are using the ac adapter, or using the battery, and the
battery status indicator is on (is green), press Fn+Home to make
the screen brighter.
v
If the sleep (standby) status indicator is on (is green), press Fn to
resume from the sleep (standby) mode.
v
If you still have the problem, do the Solution in the following
problem
″
The screen is unreadable or distorted."
Solving computer problems
22
ThinkPad
®
T61 Service and Troubleshooting Guide