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D–22 437963-001 Service Reference Guide, dc5750
Troubleshooting Without Diagnostics
Computer is in
standby mode.
Press the power button to resume
from standby mode.
Ä
When attempting to resume
from standby mode, do
not hold down the power
button for more than four
seconds. Otherwise, the
computer will shut down
and you will lose any
unsaved data.
Mouse will only move
vertically or horizontally, or
movement is jerky.
Mouse roller ball or the
rotating encoder shafts
that make contact with
the ball are dirty.
Remove roller ball cover from the
bottom of the mouse and clean the
internal components with a mouse
cleaning kit.
Solving Keyboard and Mouse Problems (Continued)
Problem Cause Solution