Technical data

Troubleshooting
DIGITAL HiNote Ultra 2000 Service Guide
3–5
Cardbus Failure
Problem Troubleshooting Procedure
The Cardbus slots do not work.
•
Reseat the Cardbus assembly cable (
Figure
4-20
).
•
Replace the Cardbus Assembly (
Figure 4-
20
,
Figure 4-21
).
•
Replace the Motherboard (
Figure 4-18
,
Figure 4-19
).
LCD Panel Failure
Problem Troubleshooting Procedure
You turn On the computer and one of the
following conditions apply:
•
The system is working, but there is no LCD
panel display.
•
The system is working, but the LCD panel
displays vertical or horizontal lines.
•
The backlight comes on, but there is no
display.
•
There is a display, but there are unwanted
lines on the screen.
•
If using the AC Adapter, make sure the
green power indicator is on.
•
Verify video operation by connecting an
external monitor to the system. Press [fn] +
[F4] to enable the external VGA port.
•
Make sure that the LCD cables are properly
seated and securely connected to the
Motherboard and Daughtercard.
•
Make sure that the LCD cable is securely
connected to the inverter. The backlight
inverter cable may be bad. Change the
backlight inverter cable (
Figure 5-3
Callout
7).
•
Replace the backlight inverter.
•
Replace the Daughtercard. Possible bad
BIOS chip.
•
Replace the Moterboard. Possible bad VGA
chip.
•
Replace the LCD panel.