2 Troubleshooting Procedures 2.9
Display
Troubleshooting
2-46
[CONFIDENTIAL]
QOSMIO G50 Maintenance Manual (960-683)
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
.
Содержание Qosmio G50 Series
Страница 10: ...x CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 1 Hardware Overview ...
Страница 44: ...1 Hardware Overview 1 9 AC Adapter 1 30 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 45: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
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Страница 121: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
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Страница 208: ...3 Tests and Diagnostics 3 31 SETUP 3 82 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 222: ...3 Tests and Diagnostics 3 31 SETUP 3 96 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 223: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 224: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 4 ...
Страница 230: ...4 Replacement Procedures 4 viii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 350: ...4 Replacement Procedures 4 38 Fluorescent lamp 4 120 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 351: ... CONFIDENTIAL Appendices ...
Страница 352: ...Appendices App ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 366: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 438: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 440: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 442: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 444: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Страница 446: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...