Technical data

Troubleshooting
3–6
DIGITAL HiNote Ultra 2000 Service Guide
CRT Failure
Problem Troubleshooting Procedure
The notebook computer has power, the notebook
computer’s LCD panel is working and one of the
following conditions apply:
•
The notebook computer’s LCD panel is
working.
•
There is no display on the CRT.
•
The color of the CRT display is wrong.
•
There is a display, but the display is not
stable.
•
Make sure the CRT output is enabled. Press
[fn] + [F4] to enable/disable the external
video port.
•
Make sure that the CRT’s power is on and
the power cables are securely connected.
•
Make sure that the CRT to notebook
computer cable connection is secure. Check
the CRT port on the notebook computer to
make sure the connection is secure, and that
there are no damaged pins or connectors.
•
Make sure the settings in the operating
system’s Control Panel Display icon are
supported by the monitor.
•
If the CRT still doesn’t work, change to a
different CRT and try again.
•
If the color is bad, adjust the Monitor’s color
controls (if any).
Notebook Computer Keyboard Failure
Problem Troubleshooting Procedure
The notebook computer is powered-on.
However, when pressing any of the keys on the
keyboard, one of the following events occurs:
•
Pressing on the key doesn’t have any effect.
•
Incorrect characters are displayed on the
screen.
•
One stroke of a key produces too many
characters on the screen.
•
Make sure that the keyboard cables are
securely connected.
•
Replace the keyboard and check again.
•
Press the Rest button located under the
keyboard (
Figure 1-1
).
•
Make sure you have the correct language
variant of the keyboard.
•
Replace the Motherboard.