Lte Band1/ Wcdma Band1 Rx - Samsung SM-T805 Service Manual

8-3-20. LTE Band1/ WCDMA Band1 RX

NORMAL CONDITION
catch the channel?
Check C1026 ≤ -65dBm ?
Check the Voltage at
{C1023 > 3.6V?}
Check L1014
≥ -65dBm ?
Check C1025
≥ -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 B1 / WCDMA B1
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
L1014, L1020
Resolder or change
U1001
Resolder or change
U1007
Change or resolder
OSC1001
Resolder or change
UCP301
8-60
Level 3 Repair
CONTINUOUS RX ON
WCDMA1 CH : 10700
LTE B1 CH : 300
AMP : -50dBm