Lte Band20 Rx - Samsung SM-T805 Service Manual

8-3-26. LTE Band20 RX

NORMAL CONDITION
catch the channel?
Check C1026 ≤ -65dBm ?
Check the Voltage at
{C1023 > 3.6V?}
Check L1022
≥ -65dBm ?
Check L1027
≥ -65dBm ?
Check the voltage at
{C1058, = 1.8V ?}
& {C1055 = 1.2V ?}
& {C1048 = 1.5V ?}
& {C1057 = 2.5V ?}
Check the freq. at
C1099 : 26.0MHz ?
LTE B20 Receiver is O.K?
END
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NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
CHECK soldered
RFS1001, F1001, C1015,
L1011, C1018
Resolder or change
U1002, C1023
Resolder or change
L1022, C1035, L1068, F1002
Resolder or change
L1027, L1023, L1028, L1069
Resolder or change
U1007
Change or resolder
OSC1001
Resolder or change
UCP301
8-78
Level 3 Repair
CONTINUOUS RX ON
RF INPUT : 6300CH
AMP : -50dBm