NETWORK TROUBLESHOOTING

TROUBLESHOOTING OF N.I.C CARDS


N.I.C Not Sensing:

• First, check for the dust on the pin of the connector. If any, clean it to ensure proper contact of the tracks. (Or cleaning solution).
• If that does not solve the problem, check the crystal frequency. If it is not working, replace the crystal.
• If the crystal is O.K, check if the S.M.D or any components are dry soldered. If so, resolder the components.
• If that doesn’t work them replace the S.M.D. This will definitely solve the problem.

No Display If The Card Is Inserted:

• Just check for the shorting on the card, because display will not come if there is any shorting. If a shorting is found, try to correct it.
• If any component is shorted, try replacing the component. This will solve your problem.

N.I.C Not Connecting Through BNC As Well As UTP:

• Check for any dry soldering of the components on the card. If any, resolder the same.
• Check the transceivers on the card. If they are faulty, replace them with working ones.
• Check for shorting of the S.M.D. Correct it, if any.
• Touch up the S.M.D, in case it is dry- soldered.
• Replace the main S.M.D.

N.I.C Not Connecting Through UTP Only:

• In the case of the UTP, the path for the data is from the S.M.D to the transceiver & then to the cable.
• Therefore, if the UTP is not working, the problem lies mainly with the transceiver. Try changing the transceiver.
• If the Transceiver is O.K, try changing the delay line.

N.I.C Not Connecting Through BNC Only:

• In the case of the BNC, the path for the data is from the S.M.D to the voltage converter, converter to the transceiver & then to the cable.
• So, if the BNC is not working, check whether the converter is giving the proper output voltage. If it is faulty, replace it.
• If the converter output is correct, then the transceiver could be faulty. Try changing the same.
• If that does not help, the problem lies with the S.M.D alone. Replace it.