4.1 Overview
4 Replacement Procedures
QOSMIO F20 Maintenance Manual (960-526)
[CONFIDENTIAL]
4-3
Before You Begin
Take note of the following points before starting work. Always remove the AC adapter and
battery pack before commencing any of the procedures. The procedure for removing the
battery pack is described in section “4.2.1 Battery Pack”.
1.
Do not disassemble the computer unless it is operating abnormally.
2.
Use the designated tools.
3.
Ensure that the environment for working on and storing parts does not contain any of
the following.
?
Dust or dirt
?
Static electricity
?
Extremely hot, cold or humid conditions
4.
Perform the diagnostic tests described in Chapter 2 to determine which FRU is the
cause of the fault.
5.
Do not perform any unnecessary work. Always work in accordance with the
disassembly and reassembly procedures in this manual.
6.
Keep parts removed from the computer in a safe place away from the computer where
they will not be damaged or interfere with your work.
7.
Disassembling requires the removal of a large number of screws. Keep removed
screws in a safe place such that you can determine which screws belong to which part.
8.
When reassembling, ensure that you use the correct screws and fit parts in the correct
position. Screw sizes are noted in the text and figures.
9.
As all parts have sharp edges and corners, take care not to cut yourself.
10.
After replacing an FRU, check that the computer and replaced part operate correctly.
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 ...