662 Troubleshooting Procedures
QOSMIO X300 Series Maintenance Manual
66
To determine if the computer’s Display port is functioning properly, perform the following
procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed.
Procedure 1: Display port connection check
Procedure 2: Display port set check
Procedure 1 Display port connection check
The TV cable may be damaged or the connections may be loose. Perform Check 1:
Check 1 Make sure Display port cable is firmly plugged into both the CRT set and the TV
port of the computer. If the cable is connected correctly, go to Check 2.
Check 2 Make sure the Display port is firmly secured to the system board of the computer.
If the malfunction remains, go to Check 3.
Check 3 The Display port cable may be damaged. Replace with a good cable. If the
malfunction remains, go to Procedure 2.
Procedure 2 Display port set check
The TV set may be faulty. Perform Check 1:
Check 1 Try using the set for television reception. If it does not work, the set may be
damaged. If the set does work, perform Check 2.
Check 2 Try connecting a different television to the computer. If the replacement
television works, the original set may be damaged. If the replacement set does not
work the system board may be damaged. Replace it with a new one following the
instructions in Chapter 4.
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