Toshiba Tecra A2-S239 Maintenance Manual - Page 100

2 Troubleshooting Procedures 2.13 Sound Troubleshooting 2.13 Sound Troubleshooting To check if the sound function is defective or malfunctio ning, follow the troubleshooting procedures below as instructed. Procedure 1 Diagnostic Test Program Execution Check Procedure 2 Connector Check Procedure 3 Replacement Check Procedure 1 Diagnostic Test Program Execution Check Execute the Sound Test in the Diagnostic Program. Refer to Chapter 3, Tests and Diagnostics for more information on how to perform the test program. If any error is detected by the test, go to Procedure 2 Procedure 2 Connector Check The connection of sound system is shown in the following figure. As the connection may be bad, disassemble the PC and check each connection. If the speakers do not work properly, go to Check 1. If the headphone or external microphone does not work properly, go to Check 2. If TV output function does not work properly, go to Check 3. Check 1 Make sure the speaker cables are firmly connected to PJ6001 and PJ6002 on the system board. If the sound function does not still work properly, perform Procedure 3. Check 2 Make sure the sound board is firmly connected to the system board. If each function does not still work properly, perform Check 2 of Procedure 3. Check 3 Make sure the connector board is firmly connected to the system board. If the function does not still work properly, perform Check 3 of Procedure 3. 2-46 Satellite A50/TECRA A2 Maintenance Manual (960-478)