Toshiba R600-SP2801C Maintenance Manual - Page 108
Procedure 2 Antenna Connection Check
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2 Troubleshooting Procedures Procedure 2 Antenna Connection Check The 3G wiring diagram is shown below: 2.15 3G Troubleshooting 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 and FMTAT*. 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 CN2621 on the PCIe Mini Card FPC. 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 PCIe Mini Card FPC. 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 CN2760 on the PCIe Mini Card FPC is firmly connected to CN2750 on the system board, connect it firmly and go to Procedure 1. If the 3G card is still not functioning properly, perform Procedure 3. 2-62 [CONFIDENTIAL] PORTEGE R600 Maintenance Manual (960-709)