2.4 System Board Troubleshooting
2 Troubleshooting Procedures
Procedure 2
Printer Port LED Check on Boot Mode
The printer port LED displays the IRT (Initial Reliability Test) status and test status by
turning lights on and off as an eight-digit binary value for boot mode. Figure 2-2 shows the
printer port LED.
Figure 2-2 Printer port LED
To use the printer port LED, follow the steps below:
1.
Plug the printer port LED into the parallel port.
2.
Read the LED status from left to right as you are facing the back of the computer.
3.
Convert the status from binary to hexadecimal notation.
4.
If the final LED status is FFh (normal status), go to Procedure 3.
5.
If the final LED status matches any of the test status values in Table 2-5, go to
Procedure 4.
NOTE
: If an error is detected by the IRT test, the printer port LED displays an error
code. For example, when the printer port LED displays B0 and halts, it indicates
an error has been detected during the Flash ROM check.
TECRA M2V Maintenance Manual (960-476)
2-19
Содержание Tecra M2V
Страница 1: ...Toshiba Personal Computer TECRA M2V Maintenance Manual TOSHIBA CORPORATION File Number 960 476 ...
Страница 10: ...x TECRA M2V Maintenance Manual 960 476 ...
Страница 11: ...Chapter 1 Hardware Overview ...
Страница 12: ...1 Hardware Overview 1 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 50: ...1 Hardware Overview 1 13 Batteries 1 36 TECRA M2V Maintenance Manual 960 476 ...
Страница 51: ...Chapter 2 Troubleshooting Procedures ...
Страница 52: ...2 Troubleshooting Procedures 2 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 56: ...2 Troubleshooting Procedures 2 vi TECRA M2V Maintenance Manual 960 476 ...
Страница 110: ...2 Troubleshooting Procedures 2 14 SD Card Slot Troubleshooting 2 54 TECRA M2V Maintenance Manual 960 476 ...
Страница 111: ...Chapter 3 Tests and Diagnostics ...
Страница 112: ...3 Tests and Diagnostics 3 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 195: ...Chapter 4 Replacement Procedures ...
Страница 196: ...4 Replacement Procedures 4 ii TECRA M2V Maintenance Manual 960 476 ...
Страница 200: ...4 Replacement Procedures 4 vi TECRA M2V Maintenance Manual 960 476 ...
Страница 274: ...4 Replacement Procedures 4 23 LCD unit FL inverter 4 74 TECRA M2V Maintenance Manual 960 476 ...
Страница 296: ...4 Replacement Procedure 4 26 Fluorescent Lamp 4 96 TECRA M2V Maintenance Manual 960 476 ...
Страница 297: ...Appendices ...
Страница 298: ...Appendices App ii TECRA M2V Maintenance Manual 960 476 ...
Страница 304: ...Appendices App viii TECRA M2V Maintenance Manual 960 476 ...
Страница 310: ...Appendices Appendix A Handling the LCD Module A 6 TECRA M2 Maintenance Manual 960 468 ...
Страница 356: ...Appendices Appendix E Key Layout E 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 360: ...Appendices Appendix G BIOS rewrite procedures G 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 362: ...Appendices Appendix H EC KBC rewrite procedures H 2 TECRA M2V Maintenance Manual 960 476 ...
Страница 364: ...Appendices Appendix I Reliability I 2 TECRA M2V Maintenance Manual 960 476 ...