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GT-B2700 Service schematics
26MHZ
3
3
4 4
5
5
SC113
1 1
2
2
VCC_RX_TX_2.8V
L105
13
12 VC4
11
VDD
GSM850|900_TX
GSM900_RX1 3
4
GSM900_RX2
16
UMTS_TRX1
UMTS_TRX2 17
UMTS_TRX3 18
VC1
15
VC2
14
VC3
G
GSM1800_RX1 5
GSM1800_RX2 6
GSM1800|1900_TX
22
7
GSM1900_RX1
8
GSM1900_RX2
1
GSM850_RX1
GSM850_RX2 2
24
9
G
19
G G
21 23
G G
25 26
G G
27 28
F100
20
ANT
G
10
L100
L108
R104
6
3
0
3
XEN
XMODE
29
8
XOUT
35
XTAL1
34
XTAL2
_PDN
19
_RES 9
1
_SEN
RFIPP
RFOH
17
15
RFOL
SCLK 3
SDIO 2
33
VDD1
32
VDD2
11
VDD3
12
VDD4
VDD5
16
VIO
10
XDIV
38
NC2
13
RAMPIN
14
RAMPOUT
RFIAN
27
RFIAP
26
23 RFIDN
22 RFIDP
25 RFIEN
24 RFIEP
RFIPN
21
20
AFC
31
6
BIN
7
BIP
BQN 4
5
BQP
GND
28
37
GND1
18
NC
NC1
39
C137
AERO4221HN/1
U100
L107
5
SC103
1
1
2 2
3 3
4 4
5
C100
VCC_RX_TX_2.8V
L112
A
2
1
C
3
G
G
4
RFS100
C111
L104
C107
C124
C133
R102
C132
C131
2
2
3 3
4
4
5 5
SC116
1 1
VCC_RX_TX_2.8V
L111
ZD100
L102
R103
L101
C138
C139
ANT100
L113
C121
1
1
2 2
3 3
4 4
5
5
1
1
2 2
3 3
4 4
5
5
SC105
ANT101
SC101
L115
L110
1 1
2
2
3
3
4 4
5
5
C113
SC102
ANT102
4 4
5
5
0
C126
VDD_IO_LOW_1.8V
SC100
1 1
2
2
3
3
C134
C104
C128
1
1
2 2
3 3
4 4
5
5
C101
SC114
2
2
3
3
4 4
5
5
C103
8 VBIAS
SC104
1 1
HB_RFIN
1
HB_RFOUT
18 LB_RFIN
7
LB_RFOUT
12
MODE
5
6
RAMP
3
TXEN
VBATT
4
11
13
GND
GND
14
15
GND
GND
16
17
GND
GND
19
20
GND
BAND_SEL 2
10
GND
GND
22
23
GND
GND
C114
PAM100
C135
C108
1 1
2
2
3
3
4 4
5
5
C109
VDD_IO_LOW_1.8V
SC106
C136
3
OUT
VCC
4
1 VCONT
VDD_IO_HIGH_2.9V
OSC401
2
GND
5
NC
7
NC NC
8
NC
6
5
5
C127
SC109
1 1
2
2
3
3
4 4
C115
C105
C118
L106
1
1
2 2
3 3
4 4
5
5
R105
SC108
1
1
2 2
3 3
4 4
5
5
F2
T_EN
F3
GPIO1
F4
INTX
F5
GPIO2
F6
VCC
SC112
B6
VDD
C1
BUSSEL1
C6
DGND
D1
RFGND
D6
AUDOL
E1
RFI
E6
AUDOR
F1
AGND
2
NC
A1
BUSSEL2
A2
RST
A3
SCL
A4
SDA
A5
FREF
A6
VREFDIG
B1
SEN
5
5
U101
1
NC
SC107
1
1
2 2
3 3
4 4
C112
L103
TA100
VCC_RX_TX_2.8V
L114
C130
1
1
2 2
3 3
4 4
5
5
C120
SC115
C117
C122
C119
C106
SC110
1
1
2 2
3 3
4 4
5
5
VBAT
VCC_SYN_2.8V
L109
C102
C110
ANT_JTAG
D_REF_CLK
AFC
BT_CLK_REQ
GSM_RXP_850
GSM_RXP_900
DCS_RXM
DCS_RXP
PCS_RXP
PCS_RXM
GSM_RXM_900
FM_BUSSEL2
32KHZ_DIGIT
D_REF_CLK
DCS_PCS_TX
BAND_SEL
BB3G_GPO_3V(0)
MODE_SELECT
GSM_RXM_850
3G
FESW2
FESW3
FESW1
GSM_850_900_TX
RAMP_PAM
PON_PA
RAMP
GSM_RXM_850
GSM_RXP_850
DCS_PCS_TX
GSM_850_900_TX
FM_RST
SDA1
FM_AUDIO_L
FM_AUDIO_R
SCL1
FM_ANT
RF_CLK
RF_EN
BT_CLK_26M
RF_DATA
PON_4220
BB2G_REF_CLK
IRX_TX_P
QRX_TX_N
QRX_TX_P
DCS_RXM
DCS_RXP
GSM_RXM_900
GSM_RXP_900
PCS_RXM
PCS_RXP
RAMP_PAM
IRX_TX_N
GSM850/900 TRX
DCS1800/PCS1900 TR
X
WCDMA2100 TRX
FM RADIO
CLK
SAMSUNG PROPRIETARY
THIS DOCUMENT CONTAINS CONFIDENTIAL
PROPRIETARY INFORMATION THAT IS
SAMSUNG ELECTRONICS COS PROPERTY.
DO NOT DISCROSE TO OR DUPLICATE FOR OTHERS
EXCEPT AS AUTHORIZED BY SAMSUNG.