Toshiba Satellite 110 Series Maintenance Manual page 28

2.4 System Board and HDD I/F Board Troubleshooting
This section describes how to determine if the system board and sound board are defective or
not functioning properly. Start with Procedure 1 and continue with the other procedures as
instructed. The procedures described in this section are:
Procedure 1:
Procedure 2:
Procedure 3:
Procedure 4:
Procedure 5:
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 and initializes each IC on the system board.
If an error message displays on the screen, perform Check 1.
If there is no error message, go to Procedure 2.
If the Toshiba MS-DOS is properly loaded, go to Procedure 3.
Check 1 If one of the following error messages displays on the screen, press the F1 key as
the message instructs. These errors occur when the system configuration pre-
served in the RTC memory (CMOS type memory) is not the same as the actual
configuration or when the data is lost.
If you press the F1 key as the message instructs, the Setup Screen appears so that
you can set the system configuration. If error message (b) appears often when the
power is turned on, replace the RTC battery. If any other error message displays,
perform Check 2.
(a)
*** Bad HDD type ***
Check system.
(b)
*** Bad RTC battery ***
Check system.
(c)
*** Bad configuration ***
Check system.
(d)
*** Bad memory size ***
Check system.
(e)
*** Bad time function ***
Check system.
(f)
*** Bad check sum (CMOS) ***
Check system.
(g)
*** Bad check sum (ROM) ***
Check system.
2-10
Message Check
Printer Port LED Check on Boot Mode
Printer Port LED Check on Resume Mode
Diagnostic Test Program Execution Check
Replacement Check
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
Then press [F1] key ......
110 Series