Toshiba L600D Manuel D’Utilisation
Chapter 2 Troubleshooting Procedures
2.15 3G Troubleshooting
To check if the computer’s 3G is malfunctioning or not, follow the troubleshooting procedure
below as instructed.
below as instructed.
Procedure 1
Connector Check and Replacement Check
The 3G module is connected to system board. If 3G malfunctions, its connection is defective
or Antenna and system board may be faulty.
or Antenna and system board may be faulty.
Check 1
Make sure 3G is firmly connected to the connector CN20/CN25(system board). If
the problem still occurs, perform Check 2.
the problem still occurs, perform Check 2.
Check 2
Antenna may be faulty. Replace it with new one. If the problem s till occurs,
perform Check 3.
perform Check 3.
Check 3
3G card may be faulty. Replace it with a new one following the steps in Chapter 4.
If the problem still occurs, perform Check 4.
If the problem still occurs, perform Check 4.
Check 4
System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
Chapter 4.
Satellite L600D/L640D/L645D, Satellite Pro L600D/Pro L640D/Pro L645D Maintenance Manual (960-Q08)