2 Troubleshooting Procedures
2.15 TV Tuner Troubleshooting
2-58
[CONFIDENTIAL]
QOSMIO F20 Maintenance Manual (960-526)
2.15 TV Tuner Troubleshooting
To check if the TV tuner is defective or not, follow the troubleshooting procedures below as
instructed.
Procedure 1: Connector Check and Replacement Check
Procedure 1
Connector Check and Replacement Check
The TV antenna, TV tuner module, UA board or system board may be disconnected or faulty.
Disassemble the computer following the steps described in Chapter 4,
Replacement
Procedures
and perform the following checks:
Check 1
Make sure the following connector has been firmly connected.
If any connection is loose, reconnect it firmly. If there is still an error, perform
Check 2.
Check 2
The TV antenna coaxial cable may be faulty. Replace it with a new one. If the
problem still occurs, perform Check 3.
Check 3
The TV tuner module may be faulty. Replace it with a new one following the steps
in Chapter 4,
Replacement Procedures
. If the problem still occurs, perform Check
4.
Check 4
The UA board may be faulty. Replace it with a new one following the steps in
Chapter 4,
Replacement Procedures
. If the problem still occurs, perform Check 5.
Check 5
Cables in the computer (TV tuner harness and UA cable) may be faulty. Replace
them with new ones following the steps in Chapter 4,
Replacement Procedures
. If
the problem still occurs, perform Check 6.
Check 6
The system board may be faulty. Replace it with new one following the
instructions in Chapter 4,
Replacement Procedures
.
Summary of Contents for QOSMIO F20 Series
Page 10: ...x CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 47: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 48: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 2 ...
Page 52: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 111: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 112: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 117: ...3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 vii ...
Page 227: ...3 31 SETUP 3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 105 ...
Page 228: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 229: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 4 ...
Page 316: ... CONFIDENTIAL Appendices ...
Page 317: ...Appendices App ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 322: ...Appendices QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL App vii Table I 1 MTBF I 1 ...
Page 323: ...Appendices App viii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 337: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 373: ...Appendices Appendix C Pin Assignments C 36 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 383: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 385: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Page 391: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...