dynabook S Series - Page 84

2 Troubleshooting Procedures
2-38 [CONFIDENTIAL] dynabook PORTEGE A30-E/TECRA A30-G,-J/dynabook S Series Maintenance Manual (960-931)
2.15 Sound Troubleshooting
To check if the sound function is malfunctioning or not, follow the troubleshooting procedures
below as instructed.
Procedure 1: Check on Windows
Procedure 2: Connector Check
Procedure 3: Replacement Check
2.15.1 Procedure 1 Check on Windows
To check if the sound function is working properly, play a music file on Windows and check
functions related to sound.
If any error is found, go to Procedure 2.
2.15.2 Procedure 2 Connector Check
The connection of sound system is shown in the following figure.
As the connection may be defective, disassemble the computer and check each connection
first.
 If headphone, microphone or headset does not work properly, reconnect it surely. If there
is still problem, perform Check 1 of Procedure 3.
 If speaker (right or left) does not work properly, perform Check 2 of Procedure 3.
 If built-in microphone (Web camera) does not work properly, perform Check 3 of
Procedure 3.
Headphone,
Microphone, Headset
Speaker
(right, left)
System board
J6320
CN6290 CN5390
MIC board
Built-in microphone
LCD HARNESS
CN9710