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defective. The defective unit must be isolated and replaced.
MODEL:T1200H/HB
Page 2-10
2.4 SYSTEM PCB ISOLATION PROCEDURES
This section describes how to determine whether the system PCB is
defective or not. The procedures below are outlined in the following
pages. They should be performed in the order indicated.
PROCEDURE 1:
PROCEDURE 2:
PROCEDURE 3:
PROCEDURE 4:
PROCEDURE 5:
NOTE: Before carrying out any of these procedures, make sure that
there is not a floppy disk in the FDD and the HDD switch is off.
Page 2-11
PROCEDURE 1
Message Check
1.
If the following message is displayed on the screen, the system PCB
is normal.
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿
³ Place system disk in drive
³ Press any key when ready....
ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ
2.
If the above message is not displayed, check to see if any of the
following messages are displayed.
KEYBOARD ERROR
FDD ERROR
OPTION ERROR
RTC ERROR
DISK 0 FAILURE
DISK CONTROLLER FAILURE
3.
If any of the above messages are displayed, go to PROCEDURE 3.
4.
If none of the above messages are displayed, go to PROCEDURE 2.
Message Check
Printer Port LED Check
Jumper Straps Check
Test Program Execution
System PCB Replacement
TABLE 2-2 Error Messages
³
³
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