2  Troubleshooting Procedures  2.6  2.5” HDD Troubleshooting 
Procedure 5  Connector Check and Replacement Check 
The HDD is connected to the connector of the system board. The connecting portion may 
be disconnected. Disassemble the computer following the steps described in Chapter 4, 
Replacement Procedures and perform the following checks to check the connecting 
portion: 
Check 1  Make sure the following connectors are firmly connected to the system board. 
<System board>
1st HDD
CN1800
44-pin
 
If the connection is loose, reconnect firmly and repeat Procedure 1. If there is 
still an error, go to Check 2. 
Check 2  The 2.5” HDD may be damaged. Replace it with a new one following the 
instructions in Chapter 4, Replacement Procedures and check the operation. If 
the problem still exists, perform Check 3. 
Check 3  The system board may be damaged. Replace it with a new one following the 
instructions in Chapter 4, Replacement Procedures. 
2-36           [CONFIDENTIAL]    Satellite A50S/TECRA A3X  Maintenance Manual (960-534)