Toshiba T2000 Maintenance Manual page 46

If an error occurs, refer to Procedure 2.
If an error does not occur, the keyboard is OK.
Procedure 2
Connector Check
The keyboard is connected to the system board by 8-pin and 12-pin flat cables. Disassemble the
system unit and check the keyboard cables. Refer to Part 4 for instruction on how to disassemble
the system unit and then perform the following checks.
Check 1 Make sure the following cables are firmly connected to the system board.
Keyboard cable
If these cables are not connected, connect them and refer back to Procedure 1. If the
problem still exists, refer to Check 2.
Check 2 The keyboard or keyboard cables may be damaged. Replace the keyboard with a
new one, and refer back to Procedure 1. If the problem still exists, refer to Check 3.
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System board PJ7
System board PJ8