Toshiba Satellite A665 Series Maintenance Manual page 82

2Troubleshooting Procedures
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.
Satellite A660/A665 Series Maintenance Manual 59