| Call Center: | Repair Center: | Repair Center: |
Symptom | Suggestions | Likely Causes | Comments |
LAN/network |
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General problems. | Check cables and | Motherboard. |
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| connections. |
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| Try connecting notebook to |
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| another network station (if |
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| applicable). If green light |
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| next to LAN port does not |
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| light, LAN cable may not be |
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| connected to network or |
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| network may be down. |
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| Use networking |
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| troubleshooter in Windows |
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| Help. |
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| Check settings in Control |
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| Panel. |
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| Make sure LAN cable is |
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| Category 3, 4, or 5 for |
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| Category 5 for |
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| operation. Maximum cable |
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| length is 100 meters (330 |
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| feet). |
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| Test LAN with |
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| diagnostics. |
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Infrared |
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General problems. | Infrared is disabled and no | Motherboard. |
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| drivers installed as shipped. |
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| (Drivers are included.) |
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| Make sure line between |
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| infrared ports is not blocked, |
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| ports face each other |
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| squarely and are no more |
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| than 1 meter apart. Sunlight, |
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| heat from nearby equipment, |
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| or other sources of infrared |
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| radiation can cause |
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| transmission errors. |
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| Open Hardware Device |
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| Manager. Try to enable the |
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| infrared port. |
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| Remove any PC cards from |
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| notebook (possible IRQ |
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| conflict). |
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| For |
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| DMA conflict with ECP |
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| parallel port. |
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Service Manual | Troubleshooting and Diagnostics |