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2.15 3G Troubleshooting 2 Troubleshooting Procedures
PORTEGE A600 Maintenance Manual (960-710) [CONFIDENTIAL] 2-63
Procedure 3 Replacement Check
The 3G antenna, 3G card, SIM card, PCIe Mini Card FPC, FSISD*(SD board) and the system
board are connected to the circuits. Any of these components may be damaged. Refer to
Chapter 4, Replacement Procedures, for instructions how to disassemble the computer and
then perform the following checks:
Check 1 The 3G card, SIM card and FSISD*(SD board) may be defective or damaged.
Replace it with a new one following the steps in Chapter 4, Replacement
Procedures. If the problem still exists, perform Check 2.
Check 2 The 3G antennas may be defective or damaged. Replace the antennas with new
ones following the steps in Chapter 4, Replacement Procedures. If the problem still
exists, perform Check 3.
Check 3 The PCIe Mini Card FPC may be defective or damaged. Replace the PCIe Mini
Card FPC with a new one following the steps in Chapter 4, Replacement
Procedures. If the problem still exists, perform Check 4
Check 4 The system board may be defective or damaged. Replace the board with a new one
following the instructions in Chapter 4, Replacement Procedures.