Keyboard Troubleshooting - Toshiba T6600C User Manual

2.7

Keyboard Troubleshooting

To determine if the T6600C's keyboard is functioning properly, perform the following proce-
dures. Start with Procedure 1 and continue with the other procedures as instructed.
Procedure 1:
Procedure 2:
Procedure 1 Diagnostic Test Program Execution Check
Execute the Keyboard Test in the Diagnostics Program. Refer to Chapter 3, Tests and Diag-
nostics, for more information on how to perform the test program.
If an error occurs, go to Procedure 2. If an error does not occur, the keyboard is functioning
properly.
Procedure 2 Connector and Replacement Check
The keyboard is connected to the system board cable. This cable may be disconnected or
damaged. Disassemble the T6600C as described in Chapter 4, Replacement Procedures, and
perform the following checks.
Check 1 Remove the keyboard cable cover. Make sure the keyboard cable is not damaged
and is connected to the system board.
Keyboard unit
If this cable is damaged, replace the keyboard unit with a new one. If the cable is
disconnected, firmly connect it. Perform Procedure 1 again. If the keyboard is still
not functioning properly, perform Check 2.
Check 2 The keyboard controller on the system board may be damaged. Replace the system
board with a new one. Refer to Chapter 4 for more information about how to
replace the system board.
T6600C, T6600C/CD, T6600C/CDV
Diagnostic Test Program Execution Check
Connector and Replacement Check
PJ190 System board
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