Cdma Network Failure - Asus T500 Service Manual

ASUS T500
Solution:
1 Check the welding status of the antenna on the KB board and contact with the antenna on battery cover, or
if the body is damaged.
2 Check if RF connector is welding normal or open circuit
3 Check if Front coupler U2001 is welding normal or is damaged.
4 Check if the GSM (TX) - channel element is welding normal or is damaged;
5 Check if the U2801 RF power amplifier chip is welding normal, and whether the relevant components are
damaged.
6 Add soldering or replace U2801
7 Add soldering or replace U1101
8 Add soldering or replace CPU

14. CDMA network failure

MB Service Manual
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