![background image](http://html.mh-extra.com/html/samsung/gt-b7300/gt-b7300_service-manual_1192150105.webp)
K
12
F
9
H
I
13
A
15
G
10
16
C
14
8
13
14
G
7
10
1
I
15
8
4
E
3
5
11
11
6
6
5
12
3
16
D
H
L
L
K
2
A
4
7
B
1
D
E
2
J
J
F
C
9
B
C300
MGND300
R308
R328
MTDO
VREG_MSMP_2.6V
6
GND
4
9
NC
Q
3
8
VCC
_Q
5
_RD 2
1
_SD
U300
7 CP
D
C307
VREG_MSMP_2.6V
C312
VREG_MSMP_2.6V
R331
MTRST_N
nPHONE_RST
R314
R302
SLEEP_CLK
C328
C317
C331
BOTHHOLE300
GND 3
HP|PWR 5
9
ID
RXD 7
8
TXD
VBATT 1
2
V_BUS
CN304
ANT 10
4
D+
6
D-
4
D- 6
3
GND
HP|PWR 5
9
ID
7
RXD
TXD 8
VBATT 1
2
V_BUS
CN302
10
ANT
D+
C330
R332
R333
MTMS
VREG_TCXO_2.85V
C332
C304
R329
VAP_MEM_1.8V
MGND301
C308
A
1
2 B
3 GND
5
NC
6
VCC
Y 4
PHONE_ACTIVE
U304
R303
C306
R305
C305
VREG_MSMA_2.6V
PDA_ACTIVE
VREG_MSME_1.8V
C321
MTCK
BOTHHOLE305
R312
C318
IN 1
2
IN
ON|_OFF 4
OUT 3
R313
U303
GND
5
6
GND
GND
7
8 GND
C341
C334
VAP_SYS_3.0V
VREG_MSMA_2.6V
R309
VREG_MSME_1.8V
BOTHHOLE304
C335
C333
R310
S
BOTHHOLE301
TR300
3
D
1
G
2
D-
GND 3
HP|PWR 5
9
ID
RXD 7
8
TXD
VBATT 1
2
V_BUS
CN301
ANT 10
4
D+
6
R304
14
NC5
NC6 15
16
NC7
VREG_MSME_1.8V
R327
21 B_RXD
B_TXD
22
B_V_BATT
18
B_V_BUS 1
NC1
24
17
NC2
12
NC3
NC4 13
29 A_TXD
25 A_V_BATT
A_V_BUS 9
B_ANT 7
2
B_D+
B_D- 3
19 B_GND
B_HP/PWR
20
6
6
A_ANT
34
10
A_D+
A_D- 11
A_GND
26
8
A_GND
27 A_HP|PWR
A_RXD
28
23 23
30
30
31 31
32
32
33 33
4
4
5 5
CN303
C338
C303
V_BAT
VREG_USIM_3.0V
C326
C329
C327
R311
VREG_MSMP_2.6V
VREG_TCXO_2.85V
U302
A
1
2 B
3 GND
5
NC
6
VCC
Y 4
R307
VREG_MSMP_2.6V
VREG_MSMA_2.6V
USB_ID
C313
VEXT_SAFE_5V
MGND
C309
TH300
C340
R316
1 1
2
2
3 3
4
4
MRTCK
SC301
R315
D300
VREG_MSMP
VUSB_3.3V
C336
MTDI
R306
C316
R321
1
1
2 2
3
3
4 4
5
5
6 6
7 7
BOTHHOLE303
SC300
2 A
4
B
GND
3
NC 5
VCCA
1
6
VCCB
U301
VREG_MSMA_2.6V
VREG_MSMC_1.2V
R326
Y6
Y7
A2_2|D2_17
A2_3|D2_18
Y8
A2_5|D2_20
Y9
C311
Y18
LINE_L_IN
Y19
GPIO_76|XMEM1_CS_N_1|SDRAM1_CS_N_3|GPS_LNA_EN
Y2
Y20
CCOMP
Y22
VSSA
VSSA
Y23
GPIO_105|MDP_VSYNC_PRIMARY
Y4
D2_9
Y5
D2_8
GPIO_34|A2_20|A2_20|TM_CLK|WLAN_CHIP_PWD
A2_15
Y11
A2_19|D2_17|WAIT_N
Y12
VDD_PAD3
Y13
USB_RBIAS|VDDA_USB3P3|VDDA_USB2P6
Y14
VDDA_USB2P6
Y15
Y16
BOOT_MODE1
EAR1ON
Y17
AUXIN
W23
W4
GPIO_72|SDRAM1_D_21
W5
VDD_DIG
D2_5
W6
OE2_N|NAND2_RE_N
W7
UB2_N|NAND2_CLE
W8
A2_9
W9
VDD_PAD1
Y1
Y10
W15
BOOT_MODE2
W16
EAR1OP
W17
W18
AUXIP
LINE_L_IP
W19
XMEM1_CS_N_2|SDRAM1_CS_N_0
W2
HKAIN_2
W20
I_IP_CH0
W22
I_IM_CH0
V4
D2_4
V5
WE1_N|SDRAM1_WE_N
W1
LB2_N|A2_0|NAND2_ALE
W10
GPIO_37|LCD_EN
W11
W12
GPIO_38|LCD2_CS_N
GPIO_35|XMEM2_CS_N_2|BT_WAKES_MSM
W13
USB_ID
W14
USB_TCXO|VDDA_USB3P3|VDDA_USB2P6
D2_15
A2_6|D2_21
U9
ROM1_CLK|SDRAM1_CLK
V1
MICBIAS
V19
GPIO_75|SDRAM1_DQM_3|EBI1_A25
V2
HKAIN_0
V20
Q_IP_CH0
V22
Q_IM_CH0
V23
GPIO_73|SDRAM1_D_22|EBI1_HLB_N
HKAIN_3
U19
OE1_N|SDRAM_CLK_EN_2
U2
VSSA
U20
VSSA
U22
VDDA
U23
GPIO_68|SDRAM1_D_17
U4
U5
GPIO_79|A1_24|SDRAM1_A_0
D2_12
U7
U8
U10
A2_14
U11
VSS
U12
A2_18|D2_16|ADV_N
U13
U14
GPIO_33|NAND2_FLASH_READY
VDDA
U15
HPH_L
U16
HPH_VREF
U17
I_IP_CH1
T22
I_IM_CH1
T23
GPIO_67|SDRAM1_D_16
T4
XMEM1_CS_N_0|SDRAM1_CS_N_2
T5
GPIO_104|MDP_VSYNC_SECONDARY
T7
WE2_N
T8
A2_1|D2_16
T9
VDD_PAD1
U1
A2_12
T13
VSSA
T14
T15
HPH_R
AUXOUT
T16
T17
HKAIN_5
Q_IP_CH1
T19
A1_22|SDRAM1_D_31
T2
Q_IM_CH1
T20
R4
A1_20|SDRAM1_D_29
R5
GPIO_71|SDRAM1_D_20
R7
R8
BOOT_MODE3
VSS
T1
A2_8|D2_23
T10
A2_17
T11
VSS
T12
WDOG_EN
A1_18|SDRAM1_D_27
R1
HKAIN_7
R16
HKAIN_1
R17
MODE1
R19
A1_19|SDRAM1_D_28
R2
VDD_PAD3
R20
R22
VSSA
VDDA
R23
A1_11
P2
MODE0
P20
VDDA
P22
VDDA
P23
A1_14
P4
A1_21|SDRAM1_D_30
P5
GPI
O_78|
A1_23
|SDRAM1_DQM_2
P7
GPIO_74|SDRAM1_D_23|EBI1_HUB_N
P8
P10
VSS
P11
P12
VSS
VSS
P13
VDD_DIG
P14
GPI
O_20|USB_
SEO|ETM_TRACE_PKT8|MO
NO_STEREO_HS_N|
CAMIF_FO
CUS
P16
GPIO_97|UART1_CTS_N|IRDA_SHUTDOWN|CAMIF_SYNC_TIMER2
P17
P19
GPIO_63|KEYSENSE1_N|KYPD_3|ETM_PIPESTAT1
A1_16|SDRAM1_D_25
N20
N22
MODE2
VDD_PAD3
N23
A1_13
N4
A1_15|SDRAM1_D_24
N5
A1_17|SDRAM1_D_26
N7
GPIO_69|SDRAM1_D_18
N8
D1_13
P1
VDD_DIG
N11
VSS
N12
VSS
N13
N14
VSS
GPIO_87|UART3_RFR_N|TSIF_CLK
N16
GPIO_85|UART3_DP_RX_DATA|TSIF_DATA
N17
GPIO_48|KEYSENSE4_N|ETM_TRACE_PKT2
N19
D1_15
N2
GPIO_9|GRFC_6
M22
VSS
M23
VSS
M4
M5
VSS
VSS
M7
VSS
M8
D1_12
N1
VSS
N10
VSS
M12
VSS
M13
VSS
M14
M16
VSS
VSS
M17
VSS
M19
D1_14
M2
VSS
M20
VSS
L23
A1_9
L4
A1_12
L5
A1_10
L7
A1_8
L8
M1
VDD_PAD1
VSS
M10
VSS
M11
VSS
L13
VSS
L14
SSBI1_DATA|
SBST
L16
GPIO_86|UART3_CTS_N|TSIF_ENABLE|IRDA_SHUTDOWN
L17
GPIO_62|KEYSENSE0_N|KYPD_1|ETM_PIPESTAT0
L19
D1_10
L2
GPIO_10|GRFC_7
L20
GPIO_47|KEYSENSE3_N|KYPD_7|ETM_TRACE_PKT1
L22
GPI
O_14|AUX_
PCM_DI
N|GRFC_13|ETM_TRACE_PKT9|TSI
F_NULL
K4
A1_4
K5
A1_3
K7
LB1_N|SDRAM1_DQM_0
K8
D1_8
L1
VDD_DIG
L10
VSS
L11
VSS
L12
VSS
K14
SSBI0_DATA|
SBDT
K16
GSM_PA_DAC_REF
K17
GPIO_100|SDCC_DATA_2
K19
D1_9
K2
GPIO_29|PA_ON2|TSIF_SYNC|BM_INT
K20
GPI
O_27|I
2C_SCL
K22
VDD_PAD3
K23
A1_7
J4
A1_5
J5
XMEM1_LWAIT_N|SDRAM1_CAS_N
J7
ROM1_ADV_N|SDRAM1_RAS_N
J8
D1_11
K1
VDD_DIG
K11
VSS
K12
VSS
K13
VDD_DIG
J1
GPIO_99|SDCC_DATA_1
J16
GPIO_31|SDCC1_CLK
J17
GPIO_101|SDCC_DATA_3
J19
D1_6
J2
GPIO_84|UART3_DP_TX_DATA|TSIF_ERROR|TSIF_NULL|TSIF_SYNC
J20
GPIO_95|UART1_DP_TX_DATA|NAND_BOOT_ERR|TRUSTED_BOOT_ERR|CAMIF_ASYNC_TIMER1A
J22
GPIO_96|UART1_DP_RX_DATA|CAMIF_ASYNC_TIMER1B
J23
SDRAM1_CLK_EN_0
H20
GPI
O_17|
TSI
F_NULL
H22
SSBI2_DATA|
SBCK
H23
A1_6
H4
A1_1
H5
GPIO_70|SDRAM1_D_19
H7
GPIO_45|KYPD_MEMO|ETM_TRACESYNC_B
H8
GPIO_3|GRFC_0
H9
D1_7
H12
PA_ON0
H13
GPI
O_92|G
P_PDM0|BM_INT
H14
TRST_N
H15
VDD_QFUSE
H16
GPI
O_26|
I2C_SDA
H17
GPIO_18|RINGER|CAMIF_EN_N
H19
D1_0
H2
GPI
O_82|CAMIF_PCLK
G4
UB1_N|SDRAM1_DQM_1
G5
GPI
O_103|AUX_PCM_DOUT|SDAC_DOUT
|GRF
C_12_
G7
GPIO_51|KYPD_13|ETM_TRACE_PKT5
G8
GPIO_5|GRFC_2
G9
VSS
H1
GPIO_53|KYPD_17|ETM_TRACE_PKT7
H10
RESOUT_N
H11
VSS
G15
RESERVED
G16
GPI
O_41|DRX_
MO
DE_SELECT
_A|ETM_GPIO_IRQ_SRC
G17
VSSA
G19
D1_5
G2
VDDA
G20
GPI
O_83|
CAMIF_DATA0
G22
GPI
O_81|
CAMIF_DATA1
G23
A1_2
F4
D1_3
F5
VDD_PAD1
G1
GPIO_46|KEYSENSE2_N|KYPD_5|ETM_TRACE_PKT0
G10
G11
RESIN_N
G12
VSS
TDI
G13
PA_RANGE1|GP_PDM2
G14
GPIO_94|TCXO_EN|ETM_PIPESTAT2
GPI
O_7|
GRFC_
4
E8
GPIO_2|PA_ON1
E9
D1_4
F1
GPI
O_61|CAMIF_DATA9|ETM_TRACE_PKT15
F19
D1_1
F2
PA_POWER_CTL_N
F20
F22
PA_POWER_CTL
F23
VDD_PAD3
GPIO_89|UART2_DP_RX_DATA|USIM_PWR_EN
E2
GPI
O_13|G
P_MN|CAMCL
K_PO
E20
GPIO_0|WDOG_STB|INTER_TX_SW_SEL_1
E22
GPI
O_80|AUX_
PCM_CL
K|ETM_TRACE_PKT10|GRFC_14|TSIF_SYNC
E23
GPIO_91|UART2_RFR_N|USIM_CLK
E4
VDD_DIG
E5
GPIO_42|PS_HOLD|ETM_PIPESTAT2B
E6
GPIO_49|KYPD_9|ETM_TRACE_PKT3
E7
E12
GPIO_64|UART1_R1|CAMIF_ASYNC_TIMER2B
E13
TMS
E14
E15
GPIO_93|UART1_RFR_N|CAMIF_SYNC_TIMER1
RTCK
E16
E17
GPI
O_59|CAMIF_DATA7|ETM_TRACE_PKT13
GPI
O_56|
CAMIF_DATA4|ETM_TRACE_PKT10
E18
VDD_DIG
E19
GPIO_90|UART2_CTS_N|USIM_RESET
D5
GPIO_50|KYPD_11|ETM_TRACE_PKT4
D6
GPI
O_4|
GRFC_
1
D7
GPIO_52|KYPD_15|ETM_TRACE_PKT6
D8
D9
DAC_REF
D1_2
E1
GPI
O_8|
GRFC_5
E10
TX_ON|GRFC_10
E11
VSS
GPI
O_60|CAMIF_DATA8|ETM_TRACE_PKT14
D17
GPI
O_54|CAMIF_DATA2|ETM_TRACE_PKT8
D18
GPI
O_16|
CAMIF_VSYNC
D19
GPIO_88|UART2_DP_TX_DATA|USIM_DATA
D2
GPI
O_1|
SBDT_1
D20
GPI
O_21|
USB_DAT|ETM_TRACE_PKT11|HS_DETECT_N|CAM
IF_FLASH
D22
GPI
O_25|
USB_OE_N|ETM_TRACE_PKT15|GPS_L
NA_EN
D23
GPI
O_102|AUX_
PCM_SYNC|SDAC_L_R|GRFC_11_
D4
GPIO_12|GRFC_9
D1
D10
TRK_LO_ADJ
VSSA
D11
TCXO
D12
TX_AGC_ADJ
D13
GPIO_30|SDCC1_CMD
D14
PA_RANGE0|GP_PDM1
D15
GPI
O_58|
CAMIF_DATA6|ETM_TRACE_PKT12
D16
B6
B7
VSSA
I_OUT
B8
Q_OUT_N
B9
GPIO_107|UICC_USB_VP
C1
GPIO_106|UICC_USB_VM
C2
GPI
O_22|SDCC2_DATA3|ETM_TRACE_PKT12
C22
C23
GPI
O_23|
SDCC2_DATA2|ETM_TRACE_PKT13
VDD_PAD4
B2
MDDIC_STBN
B20
GPI
O_55|CAMIF_DATA3|ETM_TRACE_PKT9
B21
VDD_DIG
B22
GPI
O_24|SDCC2_DATA1|ETM_TRACE_PKT14
B23
GPIO_11|GRFC_8
B3
GPIO_39|UART1_DCD|KEYSENSE_IRQ_SRC|CAMIF_ASYNC_TIMER2A
B4
GPI
O_28|
SDCC2_DATA0
B5
GPIO_44|UART1_DTR|ETM_PIPESTAT0B|SDCC2_CLK|GP_CLK
B12
B13
SLEEP_XTAL_IN
GPIO_32|SDCC1_DAT0
B14
TCK
B15
MDDIH_STBN
B16
MDDIH_DATN
B17
VSS_MDDIB
B18
B19
MDDIC_DATN
VDD_DIG
AC5
D2_11
AC6
D2_10
AC7
VDD_PAD2
AC8
A2_7|D2_22
AC9
GPIO_40|PM_INT_N|ETM_GPIO_CS_N
B1
GPIO_6|GRFC_3
B10
VSS_PLL
B11
VSS_PLL
AC19
D2_0
AC2
LINE_R_IN
AC20
VDDA
AC21
VSSA
AC22
VDD_DIG
AC23
D2_3
AC3
VDD_PAD2
AC4
D2_7
AC11
XMEM2_CS_N_1|NAND2_CS_N
AC12
USB_VBUS
AC13
USB_DP
AC14
VDDA_USB3P3
AC15
VDDA
AC16
LINE_ON
AC17
MIC2N
AC18
MIC1N
AB4
D2_6
AB5
D2_13
AB6
D2_14
AB7
A2_4|D2_19
AB8
A2_11
AB9
VDD_DIG
AC1
A2_13
AC10
VDD_PAD2
AB18
MIC1P
AB19
VDD_DIG
AB2
LINE_R_IP
AB20
VSSA
AB21
VDD_DIG
AB22
HKAIN_4
AB23
D2_1
AB3
D2_2
A2_10
AB10
A2_16
AB11
XMEM2_CS_N_0|NAND1_CS_N
AB12
GPIO_36|XMEM2_CS_N_3|CAMIF_RESET
AB13
USB_DN|VDDA_USB3P3|VDDA_USB2P6
AB14
VSSA_USB
AB15
VSSA
AB16
LINE_OP
AB17
MIC2P
A7
I_OUT_N
A8
Q_OUT
A9
AA1
XMEM1_HWAIT_N|SDRAM1_CLK_EN_1|A1_26
XMEM1_CS_N_3|GPIO_77|SDRAM1_CS_N_1|GPIO_77|XMEM1_CS_N_3
AA2
VSSA
AA22
VDDA
AA23
RESOUT_N_EBI1
AB1
A20
GPI
O_15|CAMIF_HSYNC
A21
GPI
O_57|
CAMIF_DATA5|ETM_TRACE_PKT11
A22
VDD_DIG
A23
A3
GPI
O_65|
ETM_TRACESYNC|
DRX_MODE_SELECT_B
GPIO_66|ETM_TRACECLK|MSM_WAKES_BT
A4
GPIO_43|SDCC2_CMD|ETM_PIPESTAT1B
A5
VDD_PAD3
A6
VDDA
A13
A14
VDD_PAD3
TDO
A15
A16
MDDIH_STBN
MDDIH_DATP
A17
VDD_MDDI
A18
MDDIC_DATP
A19
GPI
O_19|G
P_CLK|I
NTER_TX_SW_SEL_2
A2
MDDIC_STBP
NC
1
NC
2
VDD_DIG
A1
VDD_PAD3
A10
VDD_PLL
A11
VDD_PLL
A12
SLEEP_XTAL_OUT
UCP300
JTAG_RXD_B
GND_B
JTAG_ID_B
JTAG_IF_CON_SENSE_B
JTAG_ID_B
JTAG_ID_A
GND_A
C302
JTAG_TXD_A
JTAG_IF_CON_SENSE_A
JTAG_VBUS_B
GND_A
JTAG_VBUS_A
JTAG_ID
JTAG_IF_CON_SENSE
JTAG_RXD_A
JTAG_TXD_A
JTAG_VBUS_A
V_BAT_A
JTAG_ID_A
JTAG_IF_CON_SENSE_A
V_BAT_B
JTAG_VBUS_B
JTAG_TXD_B
TCK_MSM
JTAG_RXD
JTAG_TXD
V_BAT
V_BAT_B
GND_B
JTAG_RXD_B
JTAG_TXD_B
JTAG_IF_CON_SENSE_B
V_BAT_A
GND_A
JTAG_RXD_A
nONED_INT_MSM
nONED_INT_CP
CP_RXD
TCK_MSM
GLNA_ON
nPHONE_RST
TDI_MSM
TMS_MSM
TDO_MSM
TRST_N_MSM
RTCK_MSM
nPHONE_RST
USIM_BOOT
USB_SEL
CP_
PM_SDA
CP_PM_SCL
MSM_SPK_P
RESOUT_N
TCXO_BUFFER
PM_INT_N
ONED_CKE
nONED_INT_MSM
PA_ON_W1900
MSM_SPK_N
MSM_MIC_P
MSM_MIC_N
ONEDRAM_A(12)
GSM_ANT_SEL3_N
PA_ON_W900
PA_R0
GSM_PA_BAND
C
CP_USB_D-
TCXO_EN
TCXO_USB
TRK_LO_ADJ
RX_QP
RX1_IP
RX1_IM
RX1_QP
RX1_QM
TX_IP
TX_IM
TX_QP
TX_QM
TCXO_EN
RF_ON_TX_ON
PA_ON_W2100
DAC_REF
GSM_ANT_SEL2_N
GSM_ANT_SEL1_N
GSM_ANT_SEL0_N
MSM_PSHOLD
RX_IP
RX_IM
RX_QM
CP_TXD_SIMIO
SIM_CLK
CP_RXD_SIMRST
PDA_ACTIVE
GSM_PA_EN
ONED_DQM2
TDI_MSM
TDO_MSM
TMS_MSM
RTCK_MSM
TRST_N_MSM
GSM_PA_PWR_CTL
SSBDT_RTR
ONED_CAS
ONED_CS0
ONED_DQM0
ONED_DQM1
CP_TXD
ONED_WE
PHONE_ACTIVE
ONEDRAM_D(27)
ONEDRAM_D(26)
ONEDRAM_D(25)
ONEDRAM_D(24)
ONEDRAM_D(16)
ONEDRAM_D(17)
ONEDRAM_D(18)
ONEDRAM_D(19)
ONEDRAM_D(20)
ONEDRAM_D(23)
ONED_RAS
nPHONE_RST
ONED_BA1
ONED_BA0
ONEDRAM_D(11)
ONEDRAM_D(10)
ONEDRAM_D(9)
ONEDRAM_D(8)
ONEDRAM_D(7)
ONEDRAM_D(6)
ONEDRAM_D(5)
ONEDRAM_D(4)
ONEDRAM_D(3)
ONEDRAM_D(2)
ONEDRAM_D(1)
ONEDRAM_D(0)
ONEDRAM_D(24:31)
ONEDRAM_D(31)
ONEDRAM_D(30)
ONEDRAM_D(29)
ONEDRAM_D(28)
ONEDRAM_A(1)
ONEDRAM_A(2)
ONEDRAM_A(3)
ONEDRAM_A(4)
ONEDRAM_A(5)
ONEDRAM_A(6)
ONEDRAM_A(7)
ONEDRAM_A(8)
ONEDRAM_A(9)
ONEDRAM_A(10)
ONEDRAM_A(11)
ONEDRAM_D(0:23)
ONEDRAM_D(15)
ONEDRAM_D(14)
ONEDRAM_D(13)
ONEDRAM_D(12)
RSTIN_IN
nMSM_RST
REF_OUT
ONEDRAM_A(0)
ONED_CLK
ONED_DQM3
ONEDRAM_D(22)
ONEDRAM_D(21)
SLEEP_CLK
TCXO_BUFFER
ONEDRAM_A(1:12)
GT-B7300 Service schematic diagram
P O W E R
R C V
S P E A K E R
M I C
S I M
M O T O R