2 Troubleshooting Procedures
2.4 System Board Troubleshooting
Procedure 2
Debugging Port Check (Boot Mode)
Check the D port status by a debug port test. The tool for debug port test is shown below.
Figure 2-1 A set of tool for debug port test
The test procedures are follows:
1.
Connect the debug port test cable to the connector CN3490 of the system board. For
disassembling to connect the test cable, refer to Chapter 4.
2.
Connect the debug port test cable and RS-232C cross-cable to the test board.
3.
Connect the RS-232C Cross-cable to the PC that displays the test results.
4.
Boot the computer in MS-DOS mode.
5.
Execute GETDPORT.COM in the text menu in CPU REAL mode. (Insert the FD for
starting D port into FDD and input “FD starting drive:>dport”.)
The D port status is displayed in the following form;
6.
When the D port status is FFFFh (normal status), go to Procedure 4.
When the D port status falls into any status in Table 2-4, execute Check 1.
2-22
[CONFIDENTIAL]
PORTÉGÉ M500 Maintenance Manual (960-559)
Содержание Portege M500
Страница 10: ...x CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
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Страница 38: ...1 Hardware Overview 1 8 AC Adapter 1 24 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 39: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
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Страница 115: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
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Страница 224: ...3 Tests and Diagnostics 3 30 SETUP 3 104 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 225: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Страница 226: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
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Страница 319: ... CONFIDENTIAL Appendices ...
Страница 320: ...Appendices App ii CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 330: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 336: ...Appendices Appendix B Board Layout B 6 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 366: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 368: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 370: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 372: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...
Страница 374: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL PORTÉGÉ M500 Maintenance Manual 960 559 ...