
2 Troubleshooting Procedures
PORTEGE R400 Maintenance Manual (960-623)
[CONFIDENTIAL]
2-
57
Check 4 If the Built in microphone does not work properly, the Built in microphone cable
may be disconnected. Make sure the Built in microphone cable is firmly
connected to the connecter on the LED board. If the Built in microphone is still
not functioning properly, go to Check 6.
Check5
Make sure the CN9600 on the USB/JACK/3G/SIM board is firmly connected to
CN9500 on the system board. If the speaker, headphone or external microphone is
still not functioning properly, perform Procedure 3.
Check6
Make sure the LDE board is firmly connected to CN9730 on the system board. If
the built-in microphone is still not functioning properly, perform Procedure 3.
Procedure 3
Replacement Check
Check 1 If the speaker does not sound properly, the speaker may be defective or damaged.
Replace it with a new one. If the speaker still does not work properly, go to Check
5
Check 2 If the headphone or external microphone does not sound properly, go to Check 5.
Check 3 If the Built in microphone do not sound properly, the Built in microphone may be
defective or damaged. Replace it with a new one. If the Built in microphone still
do not work properly, go to Check 4.
Check 4 The LED board may be defective or damaged. Replace it with a new one. If the
Built in microphone still does not work properly, go to Check 5.
Check 5 The system board may be defective or damaged. Replace the system board with a
new one.
Summary of Contents for Portege R400 Series
Page 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 36: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 106: ...2 Troubleshooting Procedures 2 68 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 3 ...
Page 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 215: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 4 ...
Page 219: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 294: ... CONFIDENTIAL Appendices ...
Page 295: ...Appendices App ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...