Circuit Diagram - LG -T310i Service Manual

7. CIRCUIT DIAGRAM

16 15 14
L
RF SUPPLIES (CLEAN GND)
VDDTRX VDDRF2
PIN_B14 PIN_G13
C130 C137 C136
1u 18p 220n
K
J
1V8_VDD
I L101 3.3u
22u
C112
VBAT VBAT
C139 10u
LCD_ID
R111
H 56K
R112 N12
M0
100K
T11
BAT_TEMP M1
R11
M2
C124 4.7n N11
VDD_FMR
M10
FM_ANT_2 FMRIN
M11
FMRINX
T15
CP1
R15
CP2
A15
GSM_OUT TX1
A14
BS2
FE2
G D16
RX12
RX12
C16
RX12X RX12X
F16
RX34 RX34
E16
RX34X RX34X
C14
VDET
B13
BS1 PABS
VDDTRX C13
PABIAS
B16
BS3
FE1
B15
DCS_PCS_OUT TX2
C12
TX_EN PAEN
B14
VDDTRX
R137 DNI
BT_RESET
H8
SPI_MOSI USIF2_TXD_MTSR
F J7
SPI_MISO USIF2_RXD_MRST EINT3
H7
LCD_BL_CTRL NLB
USIF2_RTS_N
R138 DNI J8
NUB
USIF2_CTS_N
A2
Connect GND plane directly UART_TX USIF1_TXD_MTSR
B3
Close to the 26MHz XTAL
UART_RX USIF1_RXD_MRST EINT2
A3
X102 DSX321G-26M BT_RXD USIF1_RTS_N
B2
4 3 BT_TXD USIF1_CTS_N CC1CC6IO
K11
1 2 USB_DP DPLUS
K12
USB_DM
DMINUS
B11
2V85_VSIM
XOX
A11
26MHz
XO
M8
VSIM
E G3
SIM_DATA CC_IO
G2
C131 SIM_CLK CC_CLK
G4
SIM_RST
0.1u CC_RST
H1
USD_CMD MMCI_CMD
H3
USD_D0 MMCI_DAT_0
H2
USD_CLK MMCI_CLK
H6
USD_D1 MMCI_DAT_1
G5
USD_D2 MMCI_DAT_2
K5
USD_D3
MMCI_DAT_3
H12
IO_EXPANDER0 SWIF_TXRX
J15
TDO TDO
D J16
TDI TDI
G16
TMS TMS
H16
TCK TCK
H15
NTRST
TRST_N
K16
TRIG_IN
J13
MON1
J12
MON2 VDDP_DIG2
C4
IO_EXPANDER1 MON3
G11
BT_CLK FSYS1
F11 RF
R135 R113 R117 FSYS2
J11
10K DIGUP_CLK
100K 100K SPI_CLK CC0CC1IO
H11
PCM_CLK
DIGUP1 CC0CC7IO
G10
PCM_SYNC
DIGUP2 EINT4/EINT1
C
B
A
16 15 14
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
13 12 11 10
RF SUPPLIES (DIRTY GND) DBB SUPPLIES
VDD_IO1
VBAT VRF1
VBAT_RF2 VDDXO VDDTDC VDDMS 1V8_VDD
1V8_VDD
PIN_G14 PIN_E11 PIN_B12 PIN_H13 PIN_H10
Seperate and shield R115
FB101
0 PIN G9
75
C128 C127 C125 C119 C133
C123 4.7n 47n 47n 1u 0.1u
470n
(10V)
ABB SUPPLIES
PMU SUPPLIES
VBAT_PMU VBATSP
VDD1V8CP
Speaker Supply
VBAT VPMU VAUX VMMC VUSB VCORE
1V8_VDD
VBAT
PIN N8 PIN P10 PIN P8 PIN L7 PIN M9 PIN K8
PIN P14
PIN P16
C134 C120
C106 C118 C126 C122 C116 C135
0.1u 2.2u
2.2u 0.1u 470n 470n 0.1u 220n
(10V) (10V)
470
R114
R118
3.9K
TX_RAMP
3
1V8_VDD Q101 2
1V8_VDD 1V8_VDD VPMU VCORE 1V8_VDD 1V8_VDD VDDMS VDDXO VDDTDC VBAT_RF2 VAUX VMMC VUSB VDDRF2 VRF1 VRTC VBAT
1
ABB
RF SUPPLY DOMAIN PMU PADS
RF
PIN COLOR DESCRIPTION
ORANGE ABB PADS
VDDP_EBU
YELLOW RF PADS
LIGHT BLUE PMU PADS
LIGHT GREEN DBB SUPPLIES
MAGENTA DBB SIGNAL PADS
VDDP_DIG1
U102
VDDP_ULPI
RF PIN NAME INT PORT SIGNAL NAME
T2IN EINT0 SLIDE
DIGUP2 EINT4 BT_DBB_INT
VDDP_SIM DIF_RESET EINT7 uSD_DET
VDDP_DIG1
USIF1_CTS_N CC1CC6IO _CHG_EOC
USIF1_RTS_N CC0CC1IO MUIC_INT
ABB
VDDP_MMC
VDDP_DIG1
VDDP_DIG1 VDDP_DIG1 VDDP_DIG1
X101
1 2
NX3215SA
32.768KHz
C108
C121
18p
18p
13 12 11 10
9 8 7 6
VDD_IO2 VDD_EBU
1V8_VDD 1V8_VDD
PIN K7 PIN R5
MEMORY(1G NOR/256 pSRAM,56 balls)
C111 C129
0.1u 0.1u
1V8_VDD 1V8_VDD 1V8_VDD
MEM_CLK
R104 R109
R107
DNI 100K 100K
NRESET
100K C102
DNI
LDO_OUT
R116
(1%)
5.6K
R119
K3
A_D0 AD00
K2
A_D1 AD01
L1
AD02
A_D2
M1
AD03
A_D3
N3
A_D4 AD04
M2
A_D5 AD05
N1
A_D6 AD06
P2
A_D7 AD07
K1
A_D8 AD08
L4
AD09
A_D9
L2
AD10
A_D10
L3
A_D11 AD11
N2
A_D12 AD12
P5
A_D13 AD13
P1
A_D14 AD14
P3
A_D15 AD15
R4
NWR
WR_N
J1
RD_N NRD
R1
A16 AD16
J4
A17 AD17
J2
A18 AD18
H4
A19 AD19
P4
AD20
A20
R2
AD21
A21
J3
A22 AD22
T3
A23 AD23
N4
A24 AD24
K4
CS0_N NROM_CS
M3
CS1_N NRAM_CS
R3
NADV
ADV_N
J6
NWAIT
WAIT_N
P9
ANAMON
T2
C144 C141 C143 C142
BFCLK0 MEM_CLK
DNI DNI 47p 47p
K15
FSYS_EN FSYS_EN
M15
EPN
EPN
M16
EPP
EPP
R14
HSL HSL
T14
HSR HSR F_MODE
N16
LSN
VMIC VHSMIC
N15
LSP
R12
MIC_N
MICN1
T12
MIC_P
MICP1
R13
MICN2 HS_MIC_N
T13
MICP2 HS_MIC_P
P12
VMIC
P13
VUMIC
PLACE THESE CAPS NEAR BB IC
R10 C107 C132
JACK_DETECT
ACD
P11 1n
1n C117 C115 C113 C114
AGND
T10 1V8_VDD
47p 47p
VREF 47p 47p
A16 C110
VSSRF2
T16 220n
NC2
A1 1
VSSCORE4
T1
NC4
4
IO_EXPANDER0
F9
VDDFS TP106 MIC_GND
R150
1V8_VDD C146
0
5
1u
R123 R124
PWRON 2.2K 2.2K
I2C_SDA
I2C_SCL
1V8_VDD
1
4
IO_EXPANDER1
OJ101 OJ102
C145
5
1u
9 8 7 6
- 123 -
5 4 3 2
U101
1V8_VDD 1V8_VDD
A1
NC1
R106 H8 A14
P_CRE NC2
100K C3
NC3
D3 C12
NWAIT WAIT_ NC4
H3
NC5
C7 H12
NLB P_LB_ NC6
C8 K1
NUB
P_UB_ NC7
H7 K14
NRAM_CS TP101 P_CE1_ NC8
R103 D6 G12
TP105
CLK ADQ0 AD00
10 G11
ADQ1 AD01
TP104 D8 F9
NWR WE_ ADQ2 AD02
F12 F8
NRD OE_ ADQ3 AD03
TP102
G7
ADQ4 AD04
E6 G6
NADV AD05
AVD_ ADQ5
F5
ADQ6 AD06
E11 F4
TP103
NROM_CS F1_CE_ ADQ7 AD07
F11
ADQ8 AD08
E8 F10
F_RST_ ADQ9 AD09
E9 G9
F_WP_P_CE2 ADQ10 AD10
H11 G8
F_DPD ADQ11 AD11
F7
AD12
ADQ12
D7 F6
VCC1 ADQ13 AD13
H4 G4
VCC2 ADQ14 AD14
G3
ADQ15 AD15
E3
VCCQ1
G10 E4
VCCQ2 A16 AD16
D11
A17 AD17
D5 E10
AD18
VSS1 A18
E12 D10
VSS2 A19 AD19
F3 E5
VSS3 A20 AD20
G5 D4
VSS4 A21 AD21
D12
A22 AD22
D9 E7
F_VPP A23 AD23
C11
A24 AD24
C4
NLB
A25
R105 R110
100K 100K C104 C103 C105
C101
1u 1u 0.1u
0.1u
1V8_VDD
R102 NTRST
F_BOOT
TDI
12K TP110
UART_RX
TMS
TP107
UART_TX
TCK
TP109 TDO
PWRON
NRESET
(NOT MOUNTED) CN101 : SW DEBUG
(FOR SW DEBUGGING / NOT MOUNTED)
U104
3 ON BOARD ARM9 JTAG & ETM INTERFACE
OUT1 WLAN_REG_ON
ON BOARD UART/USB INTERFACE
IN
2
OUT2 BT_RESET
EN_SET
8
WLAN_RESET
OUT3
7
LCD_BL_CTRL UART PORT
OUT4
6
GND OUT5 BACKUP BATTERY
VBUS_USB
(SUPER CAP)
UA101
3G 2.5G
VRTC 1
GND GND
2
RX RX
3
TX TX
4
VCHAR NC1
5
ON_SW ON_SW
6
VBAT VBAT
7
C109 PWR NC2
BAT101
8
1u URXD NC3
9
U103
UTXD NC4
10
3
OUT1 TOUCH_EN DSR
11
RTS
IN 12
2
LCD_RESET CTS
OUT2
EN_SET
8
OUT3 VIB_EN
7
OUT4 FM_LNA_EN
6
CAM_RESET
GND OUT5
5 4 3 2
1
L
K
J
I
H
G
F
E
CN101
1
2
3
4
5
6
7
8
9
D
C
VBAT
UART_RX
UART_TX
F_MODE
SIGNAL CHECK B
A
1
LGE Internal Use Only