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2.4 System Board Troubleshooting
2 Troubleshooting Procedures
Procedure 2
Debugging Port Check
Check the D port status by a debug port test. The tool for debug port test is shown below.
Figure 2-2 A set of tool for debug port test
The test procedures are follows:
1.
Connect the debug port test cable to the connector CN3400 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 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.
7.
When the D port status falls into any status in Table 2-4, execute Check 1.
2-20 [CONFIDENTIAL]
QOSMIO G20 Maintenance Manual (960-511)
Содержание QOSMIO G20 Series
Страница 10: ...x CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 11: ...Chapter 1 Hardware Overview CONFIDENTIAL ...
Страница 12: ...1 Hardware Overview 1 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 38: ...1 9 AC Adapter 1 Hardware Overview 1 24 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 39: ...Chapter 2 Troubleshooting Procedures CONFIDENTIAL ...
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Страница 113: ...Chapter 3 Tests and Diagnostics CONFIDENTIAL ...
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Страница 223: ...3 Tests and Diagnostics 3 32 SETUP QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL 3 105 ...
Страница 236: ...3 32 SETUP 3 Tests and Diagnostics 3 118 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 237: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Страница 238: ...4 Replacement Procedures 4 4 ii CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 331: ...Appendices CONFIDENTIAL ...
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Страница 347: ...Appendix A Handling the LCD Module A 6 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 354: ...Appendix B Board Layout B 4 SD board QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL B 7 ...
Страница 360: ...Appendix B Board Layout B 9 TV antenna board QOSMIO G20 Maintenance Manual 960 511 CONFIDENTIAL B 13 ...
Страница 408: ...E 2 United Kingdom UK Keyboard Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 410: ...F 2 LAN loopback Connector Appendix F Wiring Diagrams F 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 412: ...Appendix G BIOS Rewrite Procedures G 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...
Страница 416: ...Appendix I Reliability I 2 CONFIDENTIAL QOSMIO G20 Maintenance Manual 960 511 ...