2 Troubleshooting Procedures
2.12 Sound Troubleshooting
2-56
Satellite A20 Maintenance Manual (960-444)
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 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.
Summary of Contents for A20-S259 - Satellite - Pentium 4 2.66 GHz
Page 6: ...vi Satellite A20 Maintenance Manual 960 444 ...
Page 11: ...Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii Satellite A20 Maintenance Manual 960 444 ...
Page 36: ......
Page 45: ...Chapter 2 Troubleshooting Procedures ...
Page 46: ...2 Troubleshooting Procedures 2 ii Satellite A20 Maintenance Manual 960 444 ...
Page 50: ...2 Troubleshooting Procedures 2 vi Satellite A20 Maintenance Manual 960 444 ...
Page 109: ...Chapter 3 Tests and Diagnostics ...
Page 110: ...3 Tests and Diagnostics 3 ii Satellite A20 Maintenance Manual 960 444 ...
Page 184: ...3 26 SETUP 3 Tests and Diagnostics Satellite A20 Maintenance Manual 960 444 3 69 a PCI Bus ...
Page 200: ...3 26 SETUP 3 Tests and Diagnostics Satellite A20 Maintenance Manual 960 444 3 85 ...
Page 201: ...Chapter 4 Replacement Procedures ...
Page 202: ...4 Replacement Procedures 4 ii Satellite A20 Maintenance Manual 960 444 ...
Page 272: ...4 20 DC IN Jack 4 Replacement Procedures Satellite A20 Maintenance Manual 960 444 4 59 ...
Page 374: ...4 Replacement Procedures 4 30 Fluorescent Lamp 4 156 Satellite A20 Maintenance Manual 960 444 ...
Page 439: ...4 Replacement Procedures 4 30 Fluorescent Lamp 4 220 Satellite A20 Maintenance Manual 960 444 ...
Page 440: ...Appendices ...
Page 441: ...Appendices App ii Satellite A20 Maintenance Manual 960 444 ...
Page 448: ...Appendices Satellite A20 Maintenance Manual 960 444 App ix Table I 1 MTBF I 1 ...
Page 454: ...Appendices Appendix A Handling the LCD module A 6 Satellite A20 Maintenance Manual 960 444 ...
Page 468: ...Apx C Pin Assignments Appendices Satellite A20 Maintenance Manual 960 444 C 5 ...
Page 491: ...Appendices Apx C Pin Assignments C 28 Satellite A20 Maintenance Manual 960 444 ...
Page 505: ...Appendices Appendix E Key Layout E 6 Satellite A20 Maintenance Manual 960 444 ...
Page 507: ...Appendices Appendix F Wiring Diagrams F 2 Satellite A20 Maintenance Manual 960 444 ...
Page 509: ...Appendices Appendix G BIOS Rewrite Procedures G 2 Satellite A20 Maintenance Manual 960 444 ...
Page 511: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 Satellite A20 Maintenance Manual 960 444 ...
Page 513: ...Appendices Appendix I Reliability I 2 Satellite A20 Maintenance Manual 960 444 ...