Lte Band8 / Wcdma Band8 Drx - Samsung SM-T805 Service Manual

8-3-24. LTE Band8 / WCDMA Band8 DRX

NORMAL CONDITION
catch the channel?
Check C1093 ≤ -65dBm ?
Check the Voltage at
{C1023 > 3.6V?}
Check L1048
≥ -65dBm ?
Check L1047, L1049
≥ -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 B8 / WCDMA B8
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
C1093, L1041, C1094,
C1119, L1042, C1092
Resolder or change
U1008, C1103
Resolder or change
C1104, L1052, L1048
Resolder or change
F1005, L1047, L1049, L1050
Resolder or change
U1007
Change or resolder
OSC1001
Resolder or change
UCP301
8-132
Level 3 Repair
CONTINUOUS RX ON
RF INPUT : LTE B8: 3625CH
WCDMA B8: 3013CH
AMP : -50dBm