MiTAC 8050QMA Manuel de service télécharger pdf (Page 133)

132

50QMA

N/B Maintenance

8.11 LAN Test Error-1

An error occurs when a LAN device is installed.

LAN Test Error

Yes

Test

OK?

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.

Replace

Motherboard

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MiTAC 8050QMA Manuel de service Page 133

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