DOTel. Co. DOTH-100, Руководство по обслуживанию

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8. DOTH-100 Troubleshooting & Repair
6-A. Data card cannot be used (Micro SD, SIM, SAM)
1) Check whether data card is fully inserted to the slot until you hear a click.
2) Try with another data card and check whether it is protected.
3) Try with another mainboard.
4) Replace main board if necessary.
5) Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.
7-A. GPS is not functioning.
1) Make sure the GPS environment is outside of room before connecting to satellite.
2) Make sure the GPS connection setting has properly set in navigation map.
3) Try with another mainboard.
4) Replace main board if necessary.
5) Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.
5-B. Wireless connection(GSM/GPRS/BT/WLAN) not possible.
.
1) Make sure the Wireless connection setting has been properly set.
2) Make sure the SIM Card is properly inserted to the SIM compartment.
3) Make a life call or test it when the RF test station(Antenna test)
4) Dismantle the main unit and check whether the Antenna is properly installed.
5) Try with another Antenna.
6) Try with another main board if necessary.
7) Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.
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