QOSMIO G50 Maintenance Manual (960-683)
[CONFIDENTIAL]
iii
Preface
This maintenance manual describes how to perform hardware service maintenance for the
Toshiba Personal Computer QOSMIO G50.
NOTE: Each model of QOSMIO G40 has a different configuration. For each model’s
configuration, refer to the parts list dedicated to it.
The procedures described in this manual are intended to help service technicians isolate
faulty Field Replaceable Units (FRUs) and replace them in the field.
SAFETY PRECAUTIONS
Four types of messages are used in this manual to bring important information to your
attention. Each of these messages will be italicized and identified as shown below.
DANGER: “Danger” indicates the existence of a hazard that could result in death or
serious bodily injury, if the safety instruction is not observed.
WARNING: “Warning” indicates the existence of a hazard that could result in bodily
injury, if the safety instruction is not observed.
CAUTION: “Caution” indicates the existence of a hazard that could result in property
damage, if the safety instruction is not observed.
NOTE: “Note” contains general information that relates to your safe maintenance
service.
Improper repair of the computer may result in safety hazards. Toshiba requires service
technicians and authorized dealers or service providers to ensure the following safety
precautions are adhered to strictly.
Be sure to fasten screws securely with the right screwdriver. Be sure to use the PH
Point size “0” and “1” screwdrivers complying with the ISO/DIS 8764-1:1996. If a
screw is not fully fastened, it could come loose, creating a danger of a short circuit,
which could cause overheating, smoke or fire.
If you replace the battery pack or RTC battery, be sure to use only the same model
battery or an equivalent battery recommended by Toshiba. Installation of the wrong
battery can cause the battery to explode.
Summary of Contents for Qosmio G50 Series
Page 10: ...x CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 44: ...1 Hardware Overview 1 9 AC Adapter 1 30 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 45: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 46: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 2 ...
Page 50: ...2 Troubleshooting Procedures 2 vi CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 121: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 122: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 3 ...
Page 126: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 208: ...3 Tests and Diagnostics 3 31 SETUP 3 82 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 222: ...3 Tests and Diagnostics 3 31 SETUP 3 96 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 223: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 224: ...4 Replacement Procedures 4 ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 4 ...
Page 230: ...4 Replacement Procedures 4 viii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 351: ... CONFIDENTIAL Appendices ...
Page 352: ...Appendices App ii CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 438: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 440: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...
Page 446: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G50 Maintenance Manual 960 683 ...