Level 3 Repair
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8-41
Check C110
≤
-65dBm ?
8-3-14. GSM1800/1900 RX
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
Check the voltage at
{C218, C219 = 1.8V}
& {C210 = 1.2V}
& {TA200 = 1.3V}
& {C216,C217,C205 = 2.2V}
Check the Voltage at
C118 VREG_FEMID_2.85V
CHECK soldered
RFS100, C110, L107
Resolder or change
C118
Resolder or change
L201,C829,L800,
Check the freq. at C284,
R202: 19.2MHz ?
Change or resolder
C284, R202
Check C124, C125
≥
-65dBm ?
Resolder or change
C124, C125, F102
GSM1800/1900 Receiver is O.K?
Resolder or change
U202
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
Summary of Contents for GT-P7320
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