Toshiba QOSMIO G20 manual Sound Troubleshooting Troubleshooting Procedures

2.15 Sound Troubleshooting 2 Troubleshooting Procedures

2.15 Sound Troubleshooting

To check if the sound function is malfunctioning or not, 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 Sound Test program disk. 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.

SJ board harness SD board harness

<SJ board>

<SD board>

<System board>

Internal microphone

External

CN6000

J6001

CN4622

CN9520

CN9510

CN9500

microphone

DS6000

CN6002

CN6003

Headphone

Speaker (L)

Speaker (R)

As the connection may be defective, disassemble the PC and check each connection.

If the problem still occurs, go to Procedure 3.

2-64 QOSMIO G20 Maintenance Manual (960-511)