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2 Troubleshooting 2.12 Sound
2.12 Sound
To check if the sound function is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.
Procedure 1 Diagnostic Test Program Execution Check
Procedure 2 Connector Check
Procedure 2 Replacement Check
Procedure 1 Diagnostic Test Program Execution Check
Execute the Sound test program available as part of the maintenance test program. See
Chapter 3 for information on how to perform the test.
If any error is detected by the test, go to Procedure 2
Procedure 2 Connector Check
The speakers are connected to the System board shown in the following figure.
External Microphone
SC board
PJ999
PJ998
PJ997
FL board
PJ500 PJ501
System board
PJ6002 PJ9
Headphone
Speaker
These connecters may have come off. Disassemble the computer and check the connector
connections.
Execute Chapter 1 if the speaker is not working properly.
Go to Check 2 if the external Microphone terminal and the Headphone are not working
properly.
Check 1 If the speaker is not working properly, the speaker cable may come off. Make sure
the speaker cables are connected to the System board PJ10 firmly. If there is still an
error, perform Check 3
Check 2 If external Microphone terminal and the Headphone are not working properly, the
cable between the System board and SC board, or the System board and FL board
may come off. Or the cable between the SC board and the Microphone terminal or
the SC board and the Headphone may come off. Make sure those cables are
connected firmly. If there is still an error, perform Check 3.
2-44 PORTEGE R100 Maintenance Manual (960-440)