Samsung GT-B7300 Service Manual page 103

ANT100 ANT101
RFS100
G G A
4 3 2 1
L125
C111 C112
GSM_PA_EN
GSM_PA_BAND
R103
GSM_PA_PWR_CTL V_BAT
C113
C117 C118
R104
GSM850_900_TX C119
PAM100
R105
R106
L106 L126
8 GSM_IN GSM_OUT 9
C123
R107
DCS_PCS_TX 1 DCS|PCS_IN 11
DCS|PCS_OUT
3 6
TX_EN NC
R108 R109 2 BAND_SEL 10 L109 C124
NC
5
VRAMP
R110
GSM_ANT_SEL0_N
R111
GSM_ANT_SEL1_N
R112
GSM_ANT_SEL2_N
R113
GSM_ANT_SEL3_N
VREG_RFRX1_2.1V
TX_QM
C148
C155 C156
TX_QP
DAC_REF
C161
VREG_RFRX2_2.7V
R116
R115
SHORT
C173
1
VDDA2
R117 TCXO_RTR6285 2
TCXO
3
VDDA1
SHORT 4
C182 VDDA1
5
VTUNE1
6
VDDA1
7
VDDA2
8
VDDA2
9
VTUNE_GPS
10
VDDA1
11
RX_QP PRX_QP
12
C190
C187 C188 C189 RX_QM PRX_QN
13
RX_IM PRX_IN
14
RX_IP PRX_IP
15
RX1_QP DRX_QP
16
RX1_QM DRX_QN
17
RX1_IP DRX_IP
RX1_IM
SSBDT_RTR
VREG_RFRX1_2.1V
R118
C1102
C1110 C1111
VREG_RFRX2_2.7V
C1118
C1123
GT-B7300 Service schematic diagram
GSM850/900_TX
DCS/PCS TX
GSM850/900_RX
DCS/PCS_RX
C
WCDMA2100 TRX
WCDMA900 TRX
MAIN ANT
C110
L101
VREG_SYNTH_2.7V
C114
C115
L102
GSM850_RXM
C116
L103
GSM850_RXP
L104 GSM900_RXM
L105
11 12
GSM850|900TX GSM850RX
13
GSM850RX
14 L107
GSM900RX GSM900_RXP
15
GSM900RX
9 16
GSM1800|1900TX GSM1800RX
17 C121
GSM1800RX DCS_RXM
18
GSM1900RX
19 L108
GSM1900RX
3
VC1
C122
4 20 DCS_RXP
VC2 UMTS1
5 21
VC3 UMTS2
6 22
VC4 UMTS3 L123
PCS_RXM
L110
L124
PCS_RXP
UMTS_2100_TRX
F100
UMTS_900_TRX
UMTS_1900_TRX
TX_IP VREG_RFRX1_2.1V
C144
C153 C154
TX_IM
UMTS2100_TX
UMTS1900_TX
UMTS900_TX
C162
DCS_PCS_TX VREG_RFRX2_2.7V
C166
GSM850_900_TX
C167
PWR_DET
PDET_IN C176 C177
51
GCELL_INN GSM850_RXM
50
GCELL_INP GSM850_RXP VREG_RFRX1_2.1V
49
EGSM_INN GSM900_RXM
48
EGSM_INP GSM900_RXP
47
DCS_INN DCS_RXM
46
DCS_INP DCS_RXP
45
U101 GPCS_INN PCS_RXM
44
GPCS_INP PCS_RXP
43
VDDA2
42
GPS_IN RX_GPS
41
C183
WDRXLB
40 C184
WDRXHB1
39 C185
WDRXHB2
38 C186
WPRXSE1
37
VDDA2
36
WPRXSE2 UMTS2100_RX
35 C191
C193 C194
WPRXSE1_OUT
F104
C1101
3
C1103 1 OUT L120 R119
IN
OUT 4
G G
L121
2 5
UMTS1900_RXM
UMTS1900_RXP
C1109
UMTS900_RXM
UMTS900_RXP
RF_ON_TX_ON
C1114
C1115
VREG_MSMP_2.6V
C1127 C1128
R100
TRK_LO_ADJ
C100 1 2
VCON GND
OSC100
OUT
VREG_TCXO_2.85V +VCC
4
3
L100
C102
TCXO_RTR6285
C107
C104 C105 C106
TCXO
C108
TCXO_USB
VREG_TCXO_2.85V
R101
C101
R102
1 NC 6
VCC
2 5
TCXO
A NC
3 4 R123
GND Y TCXO_BUFFER
U100
C103
F101
C133 1 IN C134
4
UMTS2100_TX OUT
G G G
C135 2 3 5
C136
PA_R0
PA_ON_W2100
F102
C151 1 C152
4
UMTS1900_TX IN OUT
G G G
2 3 5
C159
PA_R0
PA_ON_W1900
C174 C179
F103
C196 1 C197
4
UMTS900_TX IN OUT
G G G
2 3 5
PA_ON_W900
PA_R0
C1120 C1121
V_BAT
R120
PWR_DET
C131
L113
PAM101
1 10 DUF100
VCC1 VCC2
6
2 9
ANT
RF_IN RF_OUT
C137 C138
3 GND 8 3 RX 1
VMODE_1 TX
4 7
VMODE_0 GND C1131
L112
L114
5 VEN
6
CPL
GND
11
R122
V_BAT
L130 C150
C158
PAM102
DUF101
1 10
VCC1 VCC2
L131
RX 1 L129
2 9 3
RF_IN RF_OUT TX
3 GND 8
VMODE_1 C170
7 9
4 GND
VMODE_0
5 VEN
6
CPL
GND
11
R114
V_BAT
C1106
PAM103
R121
1 VEN
10 DUF102
CPL
9
2
VMODE_0
GND 6
3 8 C1116
ANT
VMODE_1 GND
1
C1117 RX
TX
4 7 3
RF_IN RF_OUT
8
RX
5 VCC1 VCC2 6
L118
L119
2 4 5 7
UMTS_2100_TRX
UMTS2100_RX
C140
UMTS_1900_TRX
C165 R124
UMTS1900_RXP
SHORT
C171 C1130
C175
C178
L128
UMTS1900_RXM
C1107
UMTS_900_TRX
L116
UMTS900_RXP
C1119 L117
C1122
UMTS900_RXM
C1126