2 Troubleshooting Procedures | 2.16 3G Troubleshooting |
Procedure 2 Antenna Connection Check
The 3G wiring diagram is shown below:
Any of the connections may be disconnected. Disassemble the computer following the steps described in Chapter 4, Replacement Procedures, and perform the following checks:
Check 1 | Make sure the 3G antenna cables are firmly connected to the 3G card. |
| If the 3G antenna cables are disconnected, connect them firmly and go to |
| Procedure 1. If the 3G card is still not functioning properly, go to Check 2. |
Check2 | Make sure the 3G card connected to CN2610 on the SIM/Mini PCI Express board. |
| If the connector is disconnected, connect it firmly and go to Procedure 1. If the 3G |
| card is still not functioning properly, perform Check 3. |
Check3 | Make sure the SIM card connected to IS2620 on the SIM/Mini PCI Express board.. |
| If the connector is disconnected, connect it firmly and go to Procedure 1. If the 3G |
| card is still not functioning properly, perform Check 4. |
Check4 | Make sure the CN9880 on the SIM/Mini PCI Express board is firmly connected to |
| CN9580 on the system board, connect it firmly and go to Procedure 1. If the 3G |
| card is still not functioning properly, perform Procedure 3. |
[CONFIDENTIAL] | TECRA R10 Maintenance Manual |
