MiTAC 8050QMA - Manual (Page 133)

132
80 80 50QMA 50QMA N/B Maintenance N/B Maintenance
8.11 LAN Test Error-1
An error occurs when a LAN device is installed.
LAN Test Error
Yes
No
Test
OK?
No
Check if BIOS setup is ok.
Re-test
OK?
Board-level
Troubleshooting
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.
Parts: Signals:
1.Check if the driver is installed properly.
2.Check if the notebook connect with the
LAN properly.
Yes
U717
U709
U511
J506
U507
X503
L508
L510
L511
L512
R682
R683
R667
R670 +3V
ICH_PME#
PCI_C/BE#[0..3]
PCIKRUN#
PCI_DEVESEL#
PMDI[0..3]+
PMDI[0..3]-
EECS
EECK
EEDI
EEDO
PCI_SERR#
Correct it.
Correct it.
Replace
Motherboard
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