Toshiba M200-ST2002 Maintenance Manual - Page 82

LAN Troubleshooting

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2 Troubleshooting Procedures 2.11 LAN Troubleshooting 2.11 LAN Troubleshooting To check if the computer's LAN is defective or malfunctioning, follow the troubleshooting procedures below as instructed. Procedure 1: Diagnostic Test Program Execution Check Procedure 2: Connector Check and Replacement Check Procedure 1 Diagnostic Test Program Execution Check To check the LAN function, execute the Sound/LAN/modem test program subtest 04 (LAN test). See Chapter 3 for information on how to perform the test. If any error is detected by the test, go to Procedure 2. Procedure 2 Connector Check and Replacement Check The LAN function is installed on the system board. The RJ45 jack is mounted on the system board. If the LAN malfunctions, the system board might be faulty. Disassemble the computer following the steps described in Chapter 4 and replace the system board. RJ45 jack PJ4100 2-44 Portege M200 Maintenance Manual (960-457)

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2
Troubleshooting Procedures
2.11
LAN
Troubleshooting
2-44
Portege M200 Maintenance Manual (960-457)
2.11 LAN Troubleshooting
To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.
Procedure 1:
Diagnostic Test Program Execution Check
Procedure 2:
Connector Check and Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
To check the LAN function, execute the Sound/LAN/modem test program subtest 04 (LAN
test).
See Chapter 3 for information on how to perform the test.
If any error is detected by the test, go to Procedure 2.
Procedure 2
Connector Check and Replacement Check
The LAN function is installed on the system board. The RJ45 jack is mounted on the system
board. If the LAN malfunctions, the system board might be faulty.
Disassemble the computer following the steps described in Chapter 4 and replace the system
board.
RJ45 jack
PJ4100