Circuit Diagram - LG -C300 Service Manual

7. CIRCUIT DIAGRAM

16 15 14
L
RF SUPPLIES (CLEAN GND)
VDDTRX VDDRF2
PIN_B14 PIN_G13
C125 C132 C131
1u 18p 220n
K
J
1V8_VDD
I 3.3u
22u
C107
VBAT VBAT
1V8_VDD C134 10u
H
R120
DNI
N12
LCD_ID M0
T11
BAT_TEMP M1
R11
M2
C119 4.7n N11
VDD_FMR
M10
FM_ANT
FMRIN
PT101 R104 M11
FMRINX
10K DNI C133 DNI T15
(5%) (1%) R111 CP1
need to replace to 1%
R15
CP2
PT101 is DNI defaultly
0
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
C13
PABIAS
B16
VLOGIC
FE1
B15
DCS_PCS_OUT TX2
C12
TX_EN PAEN
B14
VDDTRX VDDTRX
R127 10
BT_RESET
H8
SPI_MOSI USIF2_TXD_MTSR
F J7
SPI_MISO USIF2_RXD_MRST EINT3
NLB_AD25 H7
R126 10
LCD_BL_CTRL USIF2_RTS_N
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 SIM_IO
G2
C126 SIM_CLK SIM_CLK
G4
SIM_RST
0.1u SIM_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
1V8_VDD 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
_LCD_RESET MON3
G11
BT_CLK FSYS1
R102 F11 RF
R105 R108 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
1V8_VDD
VDD_IO1
VBAT
VBAT_RF2 VDDXO VDDTDC VDDMS VRF1
1V8_VDD
R103
PIN_G14 PIN_E11 PIN_B12 PIN_H13 PIN_H10
0
Seperate and shield
FB101
PIN G9
75
C122 C120 C114 C128
C123
C147
C118 47n 47n 1u 0.1u
4.7n
470n
5p
(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
C101 C113 C121 C117 C111 C130 C115
2.2u 0.1u 470n 470n 0.1u 220n 2.2u
C129
(10V) (10V)
0.1u
R106
470 R109
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
U101
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
ON_SW
X101
1 2
FC-135
C103 32.768KHz C116
22p 22p
13 12 11 10
9 8 7 6
VDD_IO2 VDD_EBU MEMORY (1G NOR AD MUX / 256 pSRAM : De MUX type)
1V8_VDD 1V8_VDD
PIN K7 PIN R5
C106 C124
0.1u 0.1u
R107
LDO_OUT
100K (1%)
R110
5.6K
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
A_D16 AD16
J4
A_D17 AD17
J2
A_D18 AD18
H4
A_D19 AD19
P4
AD20
A_D20
R2
AD21
A_D21
J3
A_D22 AD22
T3
A_D23
AD23
N4
A_D24
AD24
K4
CS0_N NROM_CS
M3
CS1_N NRAM_CS
R3
NADV
ADV_N
J6
NWAIT POWER ON
WAIT_N
P9
ANAMON
T2 VMIC VHSMIC
BFCLK0 MEM_CLK
C144 C136 C143 C142
DNI DNI 47p 47p
K15
FSYS_EN FSYS_EN VRTC
M15
RCV_N
EPN
M16
RCV_P
EPP
R14
HSL EAR_SPK_N
T14
HSR EAR_SPK_P
N16
LSN
N15 C146
LSP
2.2u
R12
MIC_N
MICN1
T12
MIC_P
MICP1
R13
MICN2 HS_MIC_N
T13
MICP2 HS_MIC_P
P12
VMIC
P13
VUMIC
R10
ACD
P11
C102 C127 C112 C110 C108 C109
AGND
T10
1n 1n 47p 47p 47p 47p
VREF
A16
C105
NC1
PLACE THESE CAPS NEAR BB IC
T16 220n
NC2
A1
NC3
T1
NC4
F9 1V8_VDD
TP101
VDDFS
Not Assembly BT Model
U103
3
OUT1
1
IN
2
OUT2
4
PWRON
IO_EXPANDER0 EN_SET
8
OUT3
I2C_SDA
I2C_SCL 7
OUT4
R135 C145
5 6
0.1u 1u TP110
GND OUT5
R132 R134 R133 R131 R130
100K 100K 100K 100K 100K
OJ101 OJ102
9 8 7 6
- 121 -
5 4 3 2
U102
A1
NC1
A14 H8 R121 100K
NC2 P_CRE
C3
NC3
C12 D3
NC4 WAIT_ NWAIT
H3
NC5
H12 C7
NC6 P_LB_ NLB_AD25
K1 C8
NC7 P_UB_ NUB
K14 H7 TP106
NC8 P_CE1_
NRAM_CS
R122
TP108 G12 D6
AD00 ADQ0 CLK MEM_CLK
G11 10
AD01
ADQ1
F9 D8
AD02 R124 R123
ADQ2 WE_ NWR DNI
F8 F12 DNI
AD03 ADQ3 OE_ NRD
G7
AD04 ADQ4
G6 E6
AD05 ADQ5 AVD_ NADV
F5
AD06 ADQ6
F4 E11 TP107
AD07 ADQ7 F1_CE_ NROM_CS
F11 R119 43K
AD08
ADQ8 1V8_VDD
F10 E8
AD09
ADQ9 F_RST_ NRESET
G9 E9 R114 100K C141 470n
AD10 ADQ10 F_WP_P_CE2
G8 H11 R113 100K
AD11 ADQ11 F_DPD 1V8_VDD
F7
AD12 ADQ12
F6 D7
AD13 ADQ13 VCC1 1V8_VDD
G4 H4
AD14 ADQ14 VCC2
G3
AD15
ADQ15
E3
VCCQ1
E4 G10
AD16
A16 VCCQ2
D11
AD17 A17
C138
E10 D5
AD18 A18 VSS1 C139
D10 E12
AD19 A19 VSS2 0.1u
1u
E5 F3
AD20 A20 VSS3
D4 G5
AD21
A21 VSS4
D12
AD22
A22
E7 D9
A23 F_VPP 1V8_VDD
AD23 C11
A24
AD24
C4
A25
NLB_AD25 C140 C137
1u
0.1u
1V8_VDD
CN101
1
KB101
2
NTRST
R118 UART_RX TP105 3
PWRON TDI
4
100 UART_TX TP102 TMS
END_KEY 5
TCK
R117 PWRON TP104
D101 6
100K
7
TDO
8
NRESET
9
C148
DNI
(NOT MOUNTED) CN101 : SW DEBUG
(FOR SW DEBUGGING / NOT MOUNTED)
ON BOARD ARM9 JTAG & ETM INTERFACE
ON BOARD UART/USB INTERFACE
BACKUP BATTERY
(SUPER CAP)
UART PORT
VBUS_USB
VRTC
UA101
3G 2.5G
WLAN_REG_ON
1
GND GND
2
BT_RESET
RX RX
3
TX TX
4
WLAN_RESET VCHAR NC1
5
ON_SW ON_SW
6
LCD_BL_CTRL VBAT VBAT
C104
7
PWR NC2
1u
8
URXD
NC3
9
UTXD NC4
10
DSR
11
RTS
12
CTS
R137
ON_SW
F_MODE
F_MODE ON_SW
1K
5 4 3 2
1
L
K
J
I
H
G
F
E
D
C
VBAT
UART_RX
UART_TX
ON_SW
B
A
1
LGE Internal Use Only