Toshiba Qosmio F50 Maintenance Manual page 61

2 Troubleshooting Procedures
To determine if the computer's TV Tuner port is functioning properly, perform the following
procedures. Figure 2-7 outlines the process. Start with Procedure 1 and continue as instructed.
Procedure 1: TV Tuner cable connection check
Procedure 2: TV Tuner SG setting check
Procedure 3: TV Tuner Antenna connection check
Procedure 4: TV Tuner Module connection check
Procedure 1 TV tuner Cable connection check
The TV Tuner cable may be damaged or the connections may be loose. Use windows
application to check device can work fine or not. If an error is located, Perform Check 1:
Check 1 Make sure TV Tuner cable is firmly plugged into both the TV Tuner set and the
TV Tuner port of the computer. If the cable is connected correctly, go to Check 2.
Check 2 Make sure the TV Tuner port is firmly secured to the system board of the
computer. If the malfunction remains, go to Check 3.
Check 3 The TV Tuner cable may be damaged. Replace with a good cable. If the
malfunction remains, go to Procedure 2.
Procedure 2 TV Tuner SG setting check
The TV Tuner SG setting may be faulty. Perform Check 1:
Check 1 Check the TV Tuner Setting was right or wrong, if right; go to check 2, if wrong.
Correct it and re-test. If fail symptom still exist, go to Procedure
Check 2 Try connecting a different TV tuner SG to the computer. If the replacement TV
tuner SG works, the original set may be damaged. If the replacement set does not
work the TV tuner Antenna may be damaged. Go to Procedure 3.
Procedure 3 TV tuner Antenna connection check
The TV Tuner Antenna may be damaged or the connections may be loose. Perform Check 1:
QOSMIO F50- QOSMIO F55 - DYNABOOK QOSMIO F50 Series Maintenance Manual
23