Table of Contents
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• MAIN-A UNIT (1/6)
IC101
B12
N7
FMC_D2
PD0
PG0
FMC_D3
C12
M7
PD1
PG1
RLC
EP883
D12
L15
PD2
PG2
BLC
R1027
MMZ1005Y102CT
D11
K15
PD3
PG3
D10
K14
LCDCS
33
PD4
PG4
CLDO
R1023
C11
K13
PD5
PG5
CLDI
33
R1024
B11
J15
R108
PD6
PG6
LCDDT
33
A11
J14
33
PD7
PG7
RSLCD
P15
H14
FMC_D13
PD8
PG8
P14
C10
FMC_D14
PD9
PG9
FMC_D15
N15
B10
PD10
PG10
PB_ENC
N14
B9
PD11
PG11
EMSW
N13
B8
PD12
PG12
M15
A8
AFOF
PD13
PG13
FMC_D0
M14
A7
R1021
PD14
PG14
FMC_D1
L14
B7
33
PD15
PG15
A4
FMC_NBL0
PE0
FMC_NBL1
A3
PE1
QSPI_BK1_IO2
R113
A2
F4
PE2
PH2
LTE_SIM_DET
18
A1
G4
PE3
PH3
LTE_PWRKEY
B1
H4
R1036
PE4
PH4
B2
J4
0
CODEC_RES
R1037
PE5
PH5
SEL
B3
M11
PE6
PH6
FMC_D4
R8
N12
PE7
PH7
BT_SW
FMC_D5
P8
M12
PE8
PH8
BT_RESET
P9
M13
FMC_D6
PE9
PH9
FMC_D7
R9
L13
PE10
PH10
FMC_D8
P10
L12
PE11
PH11
FMC_D9
R10
K12
PE12
PH12
N11
E12
FMC_D10
R1028
PE13
PH13
FMC_D11
P11
E13
R109
PE14
PH14
FMC_D12
R11
D13
0
PE15
PH15
FMC_A0
E2
E14
PF0
PI0
H3
D14
FMC_A1
PF1
PI1
FMC_A2
H2
C14
PF2
PI2
FMC_A3
J2
C13
PF3
PI3
FMC_A4
J3
D4
PF4
PI4
K3
C4
FMC_A5
PF5
PI5
QSPI_BK1_IO3
R114
K2
C3
PF6
PI6
LTE_RESET
18
K1
C2
PF7
PI7
QSPI_BK1_IO0
R115
L3
D2
PF8
PI8
L2
D3
QSPI_BK1_IO1
R116
18
PF9
PI9
QSPI_CLK
R107
18
L1
E3
R121
PF10
PI10
FMC_SDNRAS
33
R6
E4
0
PF11
PI11
FMC_A6
P6
PF12
FMC_A7
N6
PF13
R7
FMC_A8
PF14
FMC_A9
P7
PF15
STM32H750IBK6
IC101
AD_DCIN
N3
M2
PA0
PC0
ETH_REF_CLK
N2
M3
R1019
PA1
PC1
ETH_MDIO
R1020
P2
M4
PA2
PC2_C
33
R2
M5
EP_BT
R106
PA3
PC3_C
DTM1
0
N4
N5
PA4
PC4
LCDCL
P4
P5
PA5
PC5
P3
H15
MAIN-A UNIT (4/6)
YOBI2
PA6
PC6
ETH_CRS_DV
R3
G15
PA7
PC7
F15
G14
ETH_RESET
R111
PA8
PC8
EIOINT
E15
F14
PA9
PC9
F_AMUT
D15
B14
PA10
PC10
EXTMIC
C15
B13
PA11
PC11
B15
A12
DLC_B
R1029
R1025
PA12
PC12
SWDIO
33
A15
D1
PA13
PC13
SWCLK
A14
PA14
VLA
A13
PA15
R5
BT_KENSA
PB0
R4
MAIN-A UNIT (4/6)
ALARM
PB1
M6
BTPTT
PB2
VLB
A10
PB3
A9
FUNC
PB4
FMC_SDCKE1
A6
PB5
UART1_TX
B6
PB6
UART1_RX
B5
PB7
A5
SCL1
R1034
PB8
SDA1
0
B4
R1035
PB9
F_MIC
0
R12
PB10
R13
MAIN-A UNIT (4/6)
YOBI3
PB11
P12
ETH_TXD0
R1022
PB12
33
P13
OTG_HS_VBUS
PB13
OTG_HS_DM
R14
PB14
OTG_HS_DP
R15
PB15
SIM_SEL2
E1
PC14-OSC32_IN
F1
PC15-OSC32_OUT
X101
G1
PH0-OSC_IN
CR-1020
H1
PH1-OSC_OUT
VDD3R3_CPU(3.3V)
J1
NRST
D6
BOOT0
R105
C6
PDR_ON
RESET
10k
STM32H750IBK6
CPU
VDD3R3_CPU(3.3V)
N10
H6
VDD1
VSS
G13
H7
VDD2
VSS
C5
H8
VDD3
VSS
K4
H9
VDD4
VSS
G3
H10
VDD5
VSS
N8
J6
VDD6
VSS
N9
J7
VDD7
VSS
J13
J8
VDD8
VSS
H13
J9
VDD_33USB
VSS
C8
J10
VDD10
VSS
C7
K6
VDD11
VSS
F3
K7
VDD13
VSS
J12
K8
VDD14
IC101
VSS
C9
K9
VDD15
STM32H750IBK6
VSS
K10
VSS
F12
VSS2
D5
VSS3
G2
VSS5
M8
VSS6
M1
EP101
VSSA
N1
VREF-
R1
MMZ1005Y102CT
VDDA
P1
M10
VREF+
VCAP
F13
VCAP
C1
VBAT
FMC_A10
FMC_A11
VDD3R3_SPI(3.3V)
SPIROM
IGS
PTTDET
IC104
1
8
FMC_BA0
QSPI_BK1_NCS
CS#
VCC
FMC_BA1
QSPI_BK1_IO1
R151
2
7
SO/IO1
HOLD#/IO3
QSPI_BK1_NCS
QSPI_BK1_IO2
R152
18
3
6
WP#/IO2
CLK
18
4
5
MAIN-A UNIT (3/6)
GND
SI/IO0
FMC_SDCLK
UART6_RX
S25FL127SABMFI10
DOUT
QSPI_BK1_IO0
R153
ETH_TX_EN
QSPI_CLK
18
UART6_RTS
QSPI_BK1_IO3
R154
UART6_CTS
18
ETH_TXD1
FMC_SDNCAS
FMC_SDCKE0
FMC_SDNE0
SCL2
SDA2
0
FMC_SDNE1
MAIN-A UNIT (4/6)
AMUT
MICDET
LCDSB
PSW
DLC_R
VDD3R3_SPI(3.3V)
33
PS_HOLD
LTE_STATUS
EEPROM
LTE_FTMODE
DISC_MUTE
ENBTMIC
IC106
C3
DU
PROG
C1
A1
A1
BCLK
A2
DIN
A3
GND
WCLK
CODEC_SDWN
GT24C1024
R_AMUT
EP_CODEC
SCL2
SIM_SEL1
SDA2
FMC_SDNWE
ETH_MDC
VDD3R3_CPU(3.3V)
33
ETH_RXD0
JTAG
ETH_RXD1
UART6_TX
J151
SPI
1
2
DC_EN
3
4
0
CODEC_MCLKC
5
6
UART1_RX
R177
BTRXD
7
8
MAIN-A UNIT (4/6)
SWCLK
R179
100
BTTXD
9
10
100
TLC
11
12
33
13
14
15
16
17
18
19
20
HWR_RES
R180
SWDIO
R178
100
100
UART1_TX
R176
100
VDD3R3_CPU(3.3V)
R145
10k
IC108
1
4
VSS
VDD
2
3
HWR_RES
OUT
CD
S-80929CNPF
HWR_RES
R123
FMC_D0
SD_D0
FMC_D1
SD_D1
FMC_D2
SD_D2
FMC_D3
SD_D3
SD_D15
R136
22
SD_D14
SD_D13
R124
FMC_D4
SD_D4
SD_D12
22
FMC_D5
SD_D5
FMC_D6
SD_D6
FMC_D7
SD_D7
SD_D11
R135
22
SD_D10
SD_D9
FMC_NBL0
R353
SD_NBL0
SD_D8
FMC_SDNWE
SD_SDNWE
22
FMC_SDNCAS
SD_SDNCAS
FMC_SDNRAS
SD_SDNRAS
SD_NBL1
R134
33
SD_SDCLK
R133
33
33
FMC_SDNE0
R125
SD_SDNE0
SD_SDCKE0
R132
FMC_SDNE1
R126
33
SD_SDNE1
SD_SDCKE1
R131
33
33
33
R127
R130
FMC_BA0
SD_BA0
SD_A11
FMC_BA1
SD_BA1
SD_A9
FMC_A10
SD_A10
SD_A8
33
33
R128
R129
FMC_A0
SD_A0
SD_A7
FMC_A1
SD_A1
SD_A6
FMC_A2
SD_A2
SD_A5
FMC_A3
SD_A3
SD_A4
33
33
VDD5
Q202
LDTC144EE
Q201
LDTA114YE
Q203
LDTC144EE
1
2
3
4
FI953
1
4
5
6
7
2
3
8
9
DLP11SA350HL2
Q206
10
LDTC144EE
11
LTE_SIM_DET
12
13
14
E1
15
VCC
D2
WP
B2
SCL
E3
SDA
SIM 2
J254
10
C1
GND
VCC
9
C2
R262
GND
RST
8
C3
47
R263
GND
CLK
7
C5
47
GND
GND
C6
VPP
C7
R264
I/O
47
VDD3R6(3.8V)
SIM 1
J253
10
C1
GND
VCC
9
C2
GND
RST
8
C3
GND
CLK
7
C5
GND
GND
C6
VPP
C7
I/O
1
VSIM2
CLKRUN2
2
VCC
IC251
CLKRUN1
3
VBATT
CSEL
TXS4558
4
VSIM1
VSEL1
5
SIM1_CLK
VDD3R3_RAM(3.3V)
SDRAM
IC102
FMC_D15
A9
A1
VDD
VSS
R137
FMC_D14
SD_D0
A8
A2
R140
DQ0
DQ15
FMC_D13
SD_D1
A7
A3
VDDQ
VSSQ
FMC_D12
SD_D2
B9
B1
DQ1
DQ14
B8
B2
SD_D3
DQ2
DQ13
22
B7
B3
VSSQ
VDDQ
FMC_D11
C9
C1
DQ3
DQ12
R138
FMC_D10
SD_D4
C8
C2
R139
DQ4
DQ11
C7
C3
FMC_D9
SD_D5
VDDQ
VSSQ
FMC_D8
SD_D6
D9
D1
DQ5
DQ10
SD_D7
D8
D2
DQ6
DQ9
22
D7
D3
VSSQ
VDDQ
E9
E1
FMC_NBL1
DQ7
DQ8
FMC_SDCLK
E7
E3
VDD
VSS
SD_NBL0
E8
E2
DQML
NC
FMC_SDCKE0
SD_SDNWE
F9
F1
WE
DQMH
FMC_SDCKE1
SD_SDNCAS
F7
F2
CAS
CLK
F8
F3
SD_SDNRAS
RAS
CKE
SD_SDNE0
G9
G1
CS
NC
FMC_A11
SD_BA0
G7
G2
BA0
A11
FMC_A9
SD_BA1
G8
G3
BA1
A9
H9
H1
FMC_A8
SD_A10
A10
A8
SD_A0
H7
H2
A0
A7
SD_A1
H8
H3
A1
A6
FMC_A7
SD_A2
J8
J2
A2
A5
J7
J3
FMC_A6
SD_A3
A3
A4
J9
J1
FMC_A5
VDD
VSS
FMC_A4
IS42S16800F
10-3
R213
C216
0
220P
Q205
LDTC144EE
LTE_FTMODE
43
GND
GND
42
CP608
DIV_ANT
RI
41
CP06S
GND
CTS
40
CP607
SCL
DTR
39
CP06S
SDA
RXD
38
GND
TXD
37
USB_DM
DCD
36
VDD3R6(3.8V)
USB_DP
*IC201
RTS
35
VBUS
GND
34
SIM_DATA
VBAT
33
SIM_CLK
VBAT
32
SIM_DET
GND
31
SIM_RST
GND
30
SIM_VDD
PWRKEY
29
GND
GND
VDD3R3_CPU(3.3V)
LTE_STATUS
Q207
LDTC144EE
Q204
LDTC144EE
LTE_PWRKEY
VDD3R3_CPU(3.3V)
Q256
LDTC144EE
SIM_SEL2
15
14
IC252
13
1
4
VSS
VDD
12
2
3
OUT
CD
11
VDD3R3_CPU(3.3V)
En1
S-80922CNPF
Q253
LDTC144EE
SIM_SEL1
VDD3R3_RAM (3.3 V)
SDRAM
IC103
A9
A1
VDD
VSS
SD_D15
SD_D0
R141
A8
A2
R144
DQ0
DQ15
SD_D14
SD_D1
A7
A3
VDDQ
VSSQ
SD_D13
SD_D2
B9
B1
DQ1
DQ14
B8
B2
SD_D12
SD_D3
DQ2
DQ13
22
22
B7
B3
VSSQ
VDDQ
C9
C1
DQ3
DQ12
SD_D11
SD_D4
R142
C8
C2
R143
DQ4
DQ11
C7
C3
SD_D10
SD_D5
VDDQ
VSSQ
SD_D9
SD_D6
D9
D1
DQ5
DQ10
SD_D8
SD_D7
D8
D2
DQ6
DQ9
22
22
D7
D3
VSSQ
VDDQ
E9
E1
DQ7
DQ8
E7
E3
VDD
VSS
SD_NBL0
E8
E2
DQML
NC
SD_NBL1
SD_SDNWE
F9
F1
WE
DQMH
SD_SDCLK
SD_SDNCAS
F7
F2
CAS
CLK
F8
F3
SD_SDCKE0
SD_SDNRAS
RAS
CKE
SD_SDNE1
G9
G1
CS
NC
SD_A11
SD_BA0
G7
G2
BA0
A11
SD_A9
SD_BA1
G8
G3
BA1
A9
H9
H1
SD_A8
SD_A10
A10
A8
SD_A7
SD_A0
H7
H2
A0
A7
SD_A6
SD_A1
H8
H3
A1
A6
SD_A5
SD_A2
J8
J2
A2
A5
J7
J3
SD_A4
SD_A3
A3
A4
J9
J1
VDD
VSS
IS42S16800F
VDD3R3_CPU(3.3V)
C998
L203
R212
YFF31HC2A105MT00
47N
10
J201
GPS ANTENNA
R1043
0
R1044
0
J202
R222
R209
LTE ANTENNA (SUB)
0
0
J203
R230
R231
LTE ANTENNA (MAIN)
0
0
VDD5(5V)
PTT ON: 0 V
PTT OFF: 3.3 V
VDD3R3_CPU(3.3V)
IC241
PTTDET
1
8
2
7
3
6
VDD3R3(3.3V)
4
5
BA2903SFVM
MCDET
MAIN-A UNIT (3/6)
MICDET
A desktop microphone is connected:
3.3 V
A microphone other than the above is connected: 0 V
Explanatory notes
TX Line
RX Line
Voltage Line
SD_D15
SD_D14
SD_D13
SD_D12
22
SD_D11
SD_D10
SD_D9
SD_D8
22
SD_NBL1
SD_SDCLK
SD_SDCKE1
SD_A11
SD_A9
SD_A8
SD_A7
SD_A6
SD_A5
SD_A4
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