502 Troubleshooting Procedures
QOSMIO X300 Series Maintenance Manual
50
To determine if the computer’s HDMI port is functioning properly, perform the following
procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed.
Procedure 1: HDMI connection check
Procedure 2: HDMI set check
Procedure 1 HDMI connection check
The HDMI cable may be damaged or the connections may be loose. Use windows application
to check device can work fine or not. Perform Check 1:
Check 1 Make sure HDMI cable is firmly plugged into both the CRT set and the CRT port
of the computer. If the cable is connected correctly, go to Check 2.
Check 2 Make sure the HDMI port is firmly secured to the system board of the computer.
If the malfunction remains, go to Check 3.
Check 3 The HDMI cable may be damaged. Replace with a good cable. If the malfunction
remains, go to Procedure 2.
Procedure 2 HDMI 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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