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2 Troubleshooting Procedures 2.13 Sound Troubleshooting
Procedure 2 Connector Check
The sound function wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps
described in Chapter 4, Replacement Procedures and perform the following checks:
If the stereo speakers do not work correctly, perform Check 1.
If headphones do not work correctly, perform Check 2.
If sound recording does not work correctly, perform Check 3.
Check 1 If the stereo speakers do not work properly, the speaker cables may be
disconnected. Make sure the speaker cables are firmly connected to PJ6003 or
PJ6004 on the system board. If the stereo speakers are still not functioning
properly, go to Procedure 3.
Check 2 If headphones do not work properly, the SD board may be disconnected or
damaged. Make sure the connector on the SD board is firmly connected to PJ7002
on the system board. If the sound function still does not work properly, replace it
with a new one. Go to Procedure 3.
Check 3 If the sound recording function does not work properly, the internal microphone
cable or external microphone cable may be disconnected. Make sure the internal
microphone cable is firmly connected to PJ6001 on the system board and the SD
card is firmly connected to PJ7002 on the system board. If recording is still not
functioning properly, go to Procedure 3.
2-54 Satellite M30-35 Maintenance Manual (960-455)