Procedure 2 Connector Check - Toshiba satellite A20 series Maintenance Manual

2 Troubleshooting Procedures
Procedure 2 Connector Check
The sound function wiring diagram is shown below:
External microphone
Headphone
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 speakers don't work correctly, perform Check 1.
If the external microphone or the headphone doesn't work correctly, perform Check 2.
Check 1 If the speakers don't sound properly, the speaker cable may be disconnected. Make
sure the speaker cable is firmly connected to PJ9512 and PJ9513 on the system board.
If the stereo speakers are still not functioning properly, go to Procedure 3.
Check 2 If the external microphone or the headphone does not work correctly, the cable may
be disconnected. Make sure PJ9600 and PJ9601 on the sound board is firmly
connected to PJ9511 and PJ9510 on the system board. If the external microphone or
the headphone is still not functioning properly, go to Procedure 3.
2-56
SD card
MDC
PJ2130
PJ3010
PJ6000
PJ9600
Sound board
PJ9601
PJ6004
PJ6001
Line In
2.12 Sound Troubleshooting
PJ9511
PJ9512
System board
PJ9513
PJ9510
Satellite A20 Maintenance Manual (960-444)
Speaker (Right)
Speaker (Left)