User Guide

8965 N/B Maintenance
8965 N/B Maintenance
123
Yes
No
Test
OK?
Correct it.
Replace
Motherboard
1. Check if the driver is installed properly.
2. Check if the notebook connect with the
LAN properly.
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
LAN_CRS
LAN_TXP
LAN_TXN
LAN_RXP
LAN_RXN
+3VS
+3VS_LAN
LAN_MTXD[0..3]
LAN_MRXD[0..3]
LAN_MRXDV
LAN_MRXER
LAN_MRXC
LAN_MTXE
LAN_MTXC
LAN_DCLK
LAN_DADAIO
LAN_COL
U711
U15
U714
R313
RP11
R285
L80
R899
R898
R924
R925
RP8
X1
L722
L724
J715
R308
R309
R277
R278
An error occurs when a LAN device is installed.
8.12 LAN Test Error (1)
LAN Test Error
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