8399 N/B Maintenance
8.12 LAN Test Error(1)An error occurs when a LAN device is installed.LAN Test Error
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1.Check if the driver is installed properly. | Secret |
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2.Check if the notebook connect with the |
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LAN properly. |
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| Check following parts and signals: | ||||
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| MiTac |
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| Troubleshooting | Parts: |
| Signals: | |
Test | Yes | Confidential | U2 | R283 | +3VS | ||
| Correct it. |
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| U4 | R284 | +3VS_LAN_PLL | ||
OK? |
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| U20 | RP52 | +3VS_LAN | |
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| J5 | RP6 | TXD+ |
No |
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| L26 | R59 | TXD- |
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| L28 | R54 | RXIN+ |
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| X1 | R53 | RXIN- |
Check if BIOS setup is ok. |
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| R36 | R74 | PJTX+ |
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| R51 | R413 | PJTX- | |
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| Replace |
| R37 | R46 | PJRX+ |
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| R52 | . | PJRX- | |
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| Motherboard | . | |||
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| R34 | R49 | LAN_DATAIO | ||
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| R87 | C85 | LAN_DCLK |
Yes |
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| R92 | C87 | LAN_MTXC | |
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| Correct it. |
| R93 | C74 | LAN_MRXC | |
OK? |
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No
LAN_MTXD[0..3] LAN_MRXD[0..3]
LAN_MTXE
LAN_COL
LAN_CRS LAN_MRXDV LAN_MRXER LAN_XI LAN_XO
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