Toshiba T1200 - 2.4 System PCB Isolation Procedures

2.4 SYSTBII 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: Message Check
PROCEDURE 2:
Printer
Port LED Check
PROCEDURE 3:
Jumper Straps Check
PROCEDURE
4:
Test Program Execution
PROCEDURE 5:
System PCB Replacement
NO'l'E: Before carrying out any of these procedures, make sure
that there is not a floppy disk in the FDD and the HOD
switch is off.
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