2.9 Display Troubleshooting
2 Troubleshooting Procedures
QOSMIO G30 Maintenance Manual (960-546)
[CONFIDENTIAL]
2-55
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 G30
Page 10: ...x CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 40: ...1 Hardware Overview 1 9 AC Adapter 1 26 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 41: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 42: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 2 ...
Page 46: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 125: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 126: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 3 ...
Page 228: ...3 Tests and Diagnostics 3 31 SETUP 3 98 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 241: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 242: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 4 ...
Page 353: ... CONFIDENTIAL Appendices ...
Page 354: ...Appendices App ii CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 378: ...Appendices Appendix B Board Layout B 10 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 414: ...Appendices Appendix C Pin Assignments C 36 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...
Page 426: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 511 ...
Page 432: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G30 Maintenance Manual 960 546 ...