Samsung GT-S3370 Service Manual page 68

Block Diagrams
7-2. RF Blcok Diagram
FEM
D5023
GSM TX
PAM
DPCS TX
SKY77336-13
BAND SELECT / GSM PA PAM CTL
UMTS 900
SAW DPX
B7953
CPLR
UMTS 2100
SAW DPX
B7696
RX(GSM 850)
RX(DCS)
RX(PCS)
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TX(GSM850/900)
ATTN
TX (DPCS)
ATTN
RX( GSM / UMTS 900 )
TX(UMTS900)
PAM
ACPM-5208-SG1
ATTN
ATTN
PWR DET
RX( UMTS 2100)
PAM
TX(UMTS 2100)
ACPM-5021-SG1
7-2
Trans
mitters
RF
BASE
BAND
PWR
DETECT
QSC 6240T
RECEIVERS
TRK_LO
ADJ
T
C
X
O
TCXO