2-12
700 Series
2.4
System Board/PCB Troubleshooting
This section describes how to determine if the system board or other PCBs are defective or
not functioning properly. Start with Procedure 1 and continue with the other procedures as
instructed. The procedures described in this section include:
Procedure 1:
Message Check
Procedure 2:
Printer Port LED Check on Boot Mode
Procedure 3:
Printer Port LED Check on Resume Mode
Procedure 4:
Diagnostic Test Program Execution Check
Procedure 5:
Replacement Check
Procedure 1
Message Check
When the power is turned on, the system performs the Initial Reliability Test (IRT) installed in
the BIOS ROM. The IRT tests each IC on the system board and initializes it.
❑
If an error message is shown on the display, perform Check 1.
❑
If there is no error message, go to Procedure 2.
❑
If Toshiba MS-DOS or Toshiba Windows 95 is properly loaded, go to Procedure 3.
Check 1
If any of the following error messages display, press the
F1
key as the message
instructs. These errors occur when the system configuration preserved in the RTC
memory (CMOS type memory) is not the same as the actual configuration or when
data is lost.
If you press the
F1
key as the message instructs, the system configuration in the
RTC memory configuration is set to the default setting. If error message (b)
appears often when the power is turned on, replace the RTC battery. If any other
error message is displayed, perform Check 2.
(a)
*** Bad HDD type ***
Check system. Then press [F1] key ......
(b)
*** Bad RTC battery ***
Check system. Then press [F1] key ......
(c)
*** Bad configuration ***
Check system. Then press [F1] key ......
(d)
*** Bad memory size ***
Check system. Then press [F1] key ......
(e)
*** Bad time function ***
Check system. Then press [F1] key ......
(f)
*** Bad check sum (CMOS) ***
Check system. Then press [F1] key ......
(g)
*** Bad check sum (ROM) ***
Check system. Then press [F1] key ......
Содержание Tecra 700CS
Страница 4: ...1 4 700 Series Figure 1 2 700 Series system unit configuration ...
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Страница 23: ...700 Series 2 3 Figure 2 1 Troubleshooting flowchart 2 2 ...
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Страница 180: ...4 56 700 Series ...
Страница 185: ...700 Series B 1 Appendix B Board Layout B 1 System Board Front View Figure B 1 System Board layout front ...
Страница 186: ...B 2 700 Series B 2 System Board Back View Figure B 2 System Board layout back ...
Страница 212: ...E 2 700 Series E 3 German GR Keyboard Figure E 3 GR keyboard E 4 French FR Keyboard Figure E 4 FR keyboard ...
Страница 213: ...700 Series E 3 E 5 Spanish SP Keyboard Figure E 5 SP keyboard E 6 Italian IT Keyboard Figure E 6 IT keyboard ...
Страница 214: ...E 4 700 Series E 7 Scandinavian SC Keyboard Figure E 7 SC keyboard E 8 Swiss German SL Keyboard Figure E 8 SL keyboard ...
Страница 218: ...G 2 700 Series ...