Toshiba Satellite Pro U300 Maintenance Manual - Page 86

Procedure 2, Connector and Replacement Check, Replacement, Replacement Procedures

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2 Troubleshooting Procedures Procedure 2 Connector and Replacement Check The connection of cable and board may be defective. Otherwise, they may be faulty. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks: Check 1 Make sure keyboard cable is firmly connected to system board. If the connection is loose, reconnect firmly and repeat Procedure 1. If the problem still occurs, go to Check 2. Check 2 Keyboard may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. If the problem still occurs, perform Check 3. Check 3 System board may be faulty. Replace it with a new one following the instructions in Chapter 4, Replacement Procedures. 34 Manual(960-Q08) Satellite U300 and Satellite Pro U300 Maintenance

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2 Troubleshooting Procedures
Procedure 2
Connector and Replacement Check
The connection of cable and board may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4,
Replacement
Procedures
, and perform the following checks:
Check 1
Make sure keyboard cable is firmly connected to system board.
If the connection is loose, reconnect firmly and repeat Procedure 1. If the problem
still occurs, go to Check 2.
Check 2
Keyboard may be faulty. Replace it with a new one following the instructions in
Chapter 4,
Replacement Procedures
. If the problem still occurs, perform Check 3.
Check 3
System board may be faulty. Replace it with a new one following the instructions
in Chapter 4,
Replacement Procedures
.
34
Satellite U300 and Satellite Pro U300
Maintenance
Manual(960-Q08)