Isolating Faulty Components
Troubleshooting
8-1
8 Troubleshooting
NCD
network computers have four major components:
❏
Base
❏
Monitor
❏
Keyboard
❏
Mouse
If found to be faulty, the base or monitor must be returned for repair. The
mouse, or keyboard are replaceable.
Isolating Faulty Components
One of the best ways of tracking down hardware problems is to swap
components among compatible
NC
s. Swapping components lets you
determine which component is faulty.
For example, if a keyboard appears to be faulty, turn off the
NC
, disconnect the
keyboard, and connect a keyboard from another
NCD
NC
. If the second
keyboard works, you know that the problem is with the first keyboard and
not with another component, such as the base.
Mouse Troubleshooting
Most mouse problems are caused by a dirty ball or a loose connection
between the mouse cable and the base. If you have problems using your
mouse:
1. Check the mouse cable connector. Make sure it is firmly connected to the
base’s mouse connector.
2. Remove the ball from the mouse. Clean the ball and its socket, and
reassemble the mouse.
3. Clean your mouse pad or the area of the desk where your mouse sits.
Summary of Contents for Explora 450 Series
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