Toshiba A20-S259 Maintenance Manual - Page 106

2 Troubleshooting Procedures Procedure 2 Connector Check The sound function wiring diagram is shown below: 2.12 Sound Troubleshooting Any of the connections may be disconnected. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures and perform the following checks: If the speakers don't work correctly, perform Check 1. If the external microphone or the headphone doesn't work correctly, perform Check 2. Check 1 If the speakers don't sound properly, the speaker cable may be disconnected. Make sure the speaker cable is firmly connected to PJ9512 and PJ9513 on the system board. If the stereo speakers are still not functioning properly, go to Procedure 3. Check 2 If the external microphone or the headphone does not work correctly, the cable may be disconnected. Make sure PJ9600 and PJ9601 on the sound board is firmly connected to PJ9511 and PJ9510 on the system board. If the external microphone or the headphone is still not functioning properly, go to Procedure 3. 2-56 Satellite A20 Maintenance Manual (960-444)