Toshiba Satellite A660-BT3G25X Maintenance Manual - Page 111

2Troubleshooting Procedures The system board may be the reason of a Sleep & Play music fault. The system board may be damaged. To determine if the computer's Sleep & Play music is functioning properly, perform the following procedures. Figure 2-25 outlines the process. Start with Procedure 1 and continue with the other procedures as instructed. Procedure 1: windows application test Procedure 2: Replacement check Procedure 1 windows application test Test Sleep & Play music function with Audio loopback line and Multimedia sound system with line in and line out port, check the device can work fine or not. If tests and diagnostics result abnormal go to Procedure 2. If an error is not located, the Sleep & Play music functioning is properly. Procedure 2 Replacement check Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks. Check 1 Make sure that Sleep & Charge test operation is correct, go to Check 2. Check 2 The system board may be damaged. Replace it with a new one following the instructions in Chapter 4. SatelliteA660/ProA660 Series Maintenance Manual 77