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2 Troubleshooting Procedures
2.9 Display Troubleshooting
2-48
[CONFIDENTIAL]
QOSMIO F30 Maintenance Manual (960-555)
Procedure 4
Replacement Check
Fluorescent lamp, FL inverter, LCD module, HV cable and LCD/FL cable are connected to
display circuits. Any of these components may be faulty. Refer to Chapter 4,
Replacement
Procedures,
for instructions on how to disassemble the computer and then perform the
following checks:
If fluorescent lamp does not light, perform Check 1.
If characters or graphics on the internal display are not displayed clearly, perform
Check 4.
If some screen functions do not operate properly, perform Check 4.
If fluorescent lamp remains lit when the display is closed, perform Check 5.
Check 1
Fluorescent lamp may be faulty. Replace fluorescent lamp with a new one
following the instructions in Chapter 4,
Replacement Procedures
and test the
display again. If the problem still occurs, perform Check 2.
Check 2
LCD/FL cable may be faulty. Replace FL/LCD cable with a new one following
the instructions in Chapter 4,
Replacement Procedure
and test the display again. If
the problem still occurs, perform Check 3.
Check 3
FL inverter may be faulty. Replace FL inverter with a new one following the
instructions in Chapter 4,
Replacement Procedure
and test the display again. If the
problem still occurs, perform Check 4.
Check 4
LCD module may be faulty. Replace LCD module with a new one following the
instructions in Chapter 4,
Replacement Procedure
and test the display again. If
the problem still occurs, perform Check 5.
Check 5
System board may be faulty. Replace it with a new one following the instructions
in Chapter 4,
Replacement Procedure
.
Summary of Contents for QOSMIO F30 Series
Page 10: ...x CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 38: ...1 Hardware Overview 1 9 AC Adapter 1 24 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 39: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 40: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 2 ...
Page 44: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 115: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 116: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 3 ...
Page 120: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 214: ...3 Tests and Diagnostics 3 32 SETUP 3 94 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 229: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 230: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 4 ...
Page 236: ...4 Replacement Procedures 4 viii CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 329: ... CONFIDENTIAL Appendices ...
Page 330: ...Appendices App ii CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 338: ...Appendices App x CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 354: ...Appendices Appendix B Board Layout B 10 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 386: ...Appendices Appendix C Pin Assignments C 32 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 396: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 398: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...
Page 404: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO F30 Maintenance Manual 960 555 ...