8170 N/B MAINTENANCE

8.15 LAN Test Error

An error occurs when a LAN device is installed.

LAN Test Error

1.Check if the driver is installed properly. 2.Check if the notebook connect with the

LAN properly.

Test

Yes

 

 

Replace

Correct it.

 

Motherboard

OK?

 

 

 

 

 

 

 

 

 

 

No

Check if BIOS setup is ok.

Re-test

Yes

 

 

 

Correct it.

 

OK?

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

U17

U508

U507

 

-PCIRST_N

TXD+

R158

U16

Q512

 

 

-CBE[0:3]

TXD-

R610

R32

R31

 

 

LAN_WAKE

PJTX+

U4

L[8:10]

R542

 

R541

R549

R555

 

PCICLK_LAN

PJTX-

 

PJRX+

L508

L513

C567

 

PCLKRUN

 

PJRX-

C572

C577

C540

 

XTALIN

 

PJ4

U5

C69

X501

 

XTLOUT

 

PJ7

C584

C585

R12

 

RXIN-

 

 

R17

R530

R31

 

RXIN+

 

J9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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