Lan Failure - Getac 9270D Service Manual

6.11 LAN Failure

An error occurs when a LAN device is installed.
LAN Failure
1.Check if the driver is installed properly.
2.Check if the notebook connect with the
LAN properly.
Test
OK?
No
Check if BIOS setup is ok.
Re-test
OK?
No
Troubleshooting
Yes
Correct it.
Yes
Correct it.
Check the following parts for cold solder or one of the following
parts on the mother-board may be defective, use an oscilloscope
to check the following signal or replace the parts one at a time and
test after each replacement.
Board-level
Parts:
U712
U701
J703
EL745
EL706
EL707
EL708
R716
R715
Replace
C728
Motherboard
C729
Signals:
PLT_RST#
PCIE_WAKE#
LAN_CLKREQ#
LAN_PCIE_RXN
LAN_PCIE_RXP
LAN_PCIE_TXP
LAN_PCIE_TXN
CLK_PCIE_LANP
CLK_PCIE_LANN
LAN_ISOLATEB