Circuit Diagram - LG KC780 Service Manual

8. CIRCUIT DIAGRAM

1 1 2 2
VRF3_2V85 VRF3_2V85
47nH 47nH
L101 L102
A A
C111 C112
12p
100p
0.01u
C122
R109 1
VRF2_1V5
B B
VSD2_1V8
VSD1_1V5
C128
0.1u
C129
0.1u
VBAT
H3
BAT_ID M0
J3
RF_TEMP M1
G4
M2
H4
M7
G3
M8
TP105 J4
M9
F4
REMOTE_ADC M10
W3
TXHB TX2
V3
TXLB TX1
W2
GSM850_RXP RX1
C C V1
GSM850_RXN RX1X
U1
GSM900_RXP RX2
T1
GSM900_RXN RX2X
R3
PABIAS
R4
PA_BAND PABS
R1
DCS1800_RXP RX3
T5
VDET
U5
PA_MODE PAMODE
P1
DCS1800_RXN RX3X
N4
VC1 FE1
P5
VC2 FE2
M3
PA_EN PAEN
N1
PCS1900_RXP RX4
P3
TX_RAMP VRAMP
FB180 M1
PCS1900_RXN RX4X
A18
PA_EN_LED UART_BT_RTS T_OUT3
J10
UART_BT_CTS T_OUT4
H11
FLIP_OPEN T_OUT5
E13
D D
Move From CIF_PCLK SPK_SEL T_OUT6
B19
KP_OUT(4) T_OUT7
K9
DSR T_OUT8
G19
RPWRON CLKOUT0
X101
NX3225SA TP109 U4
REFR
4 W7
3 XOX
GND2 HOT2
W8
1 GND1 2 XO
HOT1
26MHz V10
SIM_IO CC_IO
U9
SIM_CLK CC_CLK
V9
SIM_RST CC_RST
U10
MMC_CMD MMCI_CMD
R8
MMC_D(0) MMCI_DAT0
R10
MMC_CLK MMCI_CLK
T9
MMC_D(1) MMCI_DAT1
R9
MMC_D(2) MMCI_DAT2
T10
MMC_D(3) MMCI_DAT3
VIO_2V62
E E
T8
TDO TDO
T7
TDI TDI
U8
TMS TMS
V8
TCK TCK
W9
TRST_N TRST_N
R6
RTCK RTCK
R120 10K
N5
TRIG_IN
L5
MON1
0 M5
MON2
VBAT
R180
VSD1_1V5 R7
26M_OUT FSYS3
U7
26M_BT FSYS2
A14
VBAT_SD1
A15
VSD1
10uH
A13
SD1_FB
L103
C11
SD2_SD1_SUBST
VSD2_1V8 A12
VSS_SD1
A16
F F 22u SD1_FBL
10uH
C139
L104
A11
VBAT_SD2
A10
VSD2
B9
SD2_FB
B10
SD2_FBL
A9
VSS_SD2
22u
C12
SU_GATE
C140 B14
SU_GND
B11
SU_FB
B13
SU_ISENSE
B12
VBAT_SU
C13
VSS_SU
G G
UART
UT101
3G 2.5G
1
GND GND
2
RX RX UART_RX
3
TX TX UART_TX
4
VCHAR NC1 VCHG
5
ON_SW ON_SW RPWRON_EN
6
VBAT VBAT VBAT
7
PWR NC2 VBUS_USB
8
URXD NC3 USB_DM
H H 9
UTXD NC4 USB_DP
10
DSR DSR
11
RTS
12
CTS
1 1 2 2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 3 4 4 5 5
VRF3_2V85 VRF3_2V85
VRF3_2V85 VRF3_2V85 VUSB_3V1
VAUDIO_2V5
VBAT
VRF1_2V85
VAUX_2V9 C102
VPLL_1V5
VVIB_2V8 1u
C101 C103
2.2u
1u
C110
C116 C117
C115 1u
C113 C114
0.01u 0.01u C108
0.01u VMMC
0.1u 0.01u
2.2u
C119
VIO_2V62 VRF1_2V85
2.2u
VRF3_2V85 VBAT
C123
C121 C124
1u
1u
TP102
2.2u
U104
PMB8888
Add GPIO for Charging Trouble
3 3 4 4 5 5
6 6 7 7 8 8
VRF2_1V5
KDR331V
OVP_VCHG
2
3
OVP_VUSB
1
D101
C118
1u 2.2u C109
VRTC_2V0
C120 0.1u
VSIM_2V8
VBAT
C125 C126
220n
1u
C127 220n
DATA(0:15)
R14 TP104
DATA(0)
EBU_AD0
W18
DATA(1)
EBU_AD1
V18
DATA(2)
EBU_AD2
W17
DATA(3)
EBU_AD3
T15
DATA(4)
EBU_AD4
U14
EBU_AD5 DATA(5)
V17
EBU_AD6 DATA(6)
T14
EBU_AD7 DATA(7)
R13
EBU_AD8 DATA(8)
W16
EBU_AD9 DATA(9)
V16
EBU_AD10 DATA(10)
U12
EBU_AD11 DATA(11)
W15
EBU_AD12 DATA(12)
W14
EBU_AD13 DATA(13)
V15
EBU_AD14 DATA(14)
W13
EBU_AD15 DATA(15)
N18
EBU_WR_N _WR
P19
EBU_RD_N _RD _WP
N19
EBU_BC0_N _BC0
P15
EBU_BC1_N _BC1
ADD(0:14)
H19
ADD(0)
EBU_A0
J17
ADD(1)
EBU_A1
K16
ADD(2)
EBU_A2
G18
ADD(3)
EBU_A3
L16
ADD(4)
EBU_A4
J19
ADD(5)
EBU_A5
J16
ADD(6)
EBU_A6
K17
ADD(7)
EBU_A7
K18
ADD(8)
EBU_A8
L17
EBU_A9 ADD(9)
K15
EBU_A10 ADD(10)
L18
EBU_A11 ADD(11)
M16
EBU_A12 ADD(12)
J18
EBU_A13 ADD(13)
M18
EBU_A14 ADD(14)
N15
EBU_A15
L15
EBU_A16 ADD(16)
L19
EBU_A17 ADD(17)
M15
EBU_A18
M19
EBU_A19
H18
EBU_A20
R16
EBU_A21
N17
EBU_A22
VSD2_1V8
T19
EBU_A23
U17
EBU_A24
R17
EBU_CS0_N FLASH1_CS
R19
EBU_CS1_N SDRAM_CS1
T17
EBU_CS2_N SDRAM_CS2
P18
EBU_CS3_N
R18 TP110
EBU_ADV_N nADV
K19
EBU_RAS_N _RAS
N16
EBU_CAS_N _CAS
U18
EBU_WAIT_N
U19
EBU_SDCLKO SDCLKO
U15
EBU_SDCLKI SDCLKI
P17 TP112
EBU_BFCLKO BFCLKO
U16 TP113
EBU_BFCLKI BFCLKI
T18
EBU_CKE CKE
F18
FCDP_RBN FCDP
E19
F32K
D19
OSC32K
F19 TP114 X102
RESET_N nRESET
2 1
B5 32.768KHz
IREF1 C144
B6
A_GND 15p
A6 C143
VREF1 15p
L3
VREF2
L4
IREF2
C145
220n
C146
R126
R127
22K 1u
100K
TP116
PO_RESET
_WP
PWRON
KEY_BL
VIO_2V62
I2C_SDA
I2C_SCL
6 6 7 7 8 8
- 111 -
9 9 10 10 11 11
2G NAND(Large Block x16bit) +1G(512M+512M) SDRAM
DATA(0:15)
DATA(0) B3 C7 TP101 ADD(0)
DQ0 A0
DATA(1) C4 C8 ADD(1)
DQ1 A1
DATA(2) C3 C9 ADD(2)
DQ2 A2
DATA(3) D4 B8 ADD(3)
DQ3 A3
DATA(4) D3 M9 ADD(4)
DQ4 A4
DATA(5) E4 L9 ADD(5)
DQ5 A5
DATA(6) E3 K9 ADD(6)
DQ6 A6
DATA(7) F4 J9 ADD(7)
DQ7 A7
DATA(8) J4 H7 ADD(8)
DQ8 A8
DATA(9) K3 H8 ADD(9)
DQ9 A9
VSD2_1V8 DATA(10) K4 D9 ADD(10)
DQ10 A10
DATA(11) L3 H9 ADD(11)
DQ11 A11
DATA(12) L4 G7 ADD(12)
DQ12 A12
DATA(13) M3
DQ13
R105 DATA(14) M4
R107 DQ14
100K DATA(15) N3 B4
100K DQ15 VDD1
G9
VDD2
H2
SDRAM_CS1 VDD3
E9 M2
SDRAM_CS2 _CS1 VDD4
R108 22
E8
SDCLKI _CS2
R110 22
H4 D2
SDCLKO CLK VDDQ1
G8 F2
CKE CKE1 VDDQ2
TP103 F8 K2
_WR _WED U101 VDDQ3
D7
ADD(13) BA0
D8
ADD(14) BA1 KAL00900BM-DJ55
E7 C2
_RAS _RAS VSS1
F7 F9
_CAS _CAS VSS2
G3 G2
_BC0 LDQM VSS3 C130
H3 N4
_BC1 UDQM VSS4 0.1u
DATA(0:7)
E2
VSSQ1
DATA(0) J5 J2
IO0 VSSQ2
DATA(1) L5 L2
IO1 VSSQ3
DATA(2) J6
IO2
DATA(3) L6
VSD2_1V8
IO3
DATA(4) J7 B6
IO4 VCC1
DATA(5) L7 N7
IO5 VCC2
DATA(6) J8
IO6
DATA(7) L8 N6
IO7 VCCQ
VSD2_1V8
VSD2_1V8 C6 B5
FLASH1_CS _CE VSS5 C136
F6 N5
CKE CKE2 VSS6 0.1u
TP106 D5 N8
ADD(16) ALE VSS7
TP107 C5
ADD(17) CLE
E5
_RD _RE
E6
FCDP R__B
D6
_WR _WE
F5
_WP
ON BOARD ARM9 JTAG
EXT_RESET
VIO_2V62 VSD2_1V8
CN101
G1 G2
VIO_2V62 VRTC_2V0
1 30
2 29
3 28
4 27
TRST_N
5 26
TDI
6 25
TMS
7 24
TCK
8 23
RTCK U102
9 22 TC7SH08FS
TDO 5
10 21 1
_EXTRST _EXTRST VCC
11 20 4
12 19 3
PO_RESET
GND
13 18
2
14 17
15 16
G3 G4
VIO_2V62
U103 AAT4290IJS
3
OUT1
1
IN
2
OUT2 BL_RESETB
4
nWAIT GPO_CTRL2 EN_SET
8
OUT3 EN_T
7
OUT4 BT_RESET
5 6
GND OUT5
VIO_2V62
U105 AAT4290IJS
3
OUT1 CHG_EN
1
IN
2
OUT2 DIF_BYPASS
4
GPO_CTRL1 EN_SET
8
OUT3 MM_SLEEP
7
OUT4 MM_RESETB_CORE
5 6
GND OUT5 MM_RESET
9 9 10 10 11 11
LGMC
12 12
ADD(0:12)
VSD2_1V8
VSD2_1V8
C131 C132 C133 C134
0.1u 0.1u 0.1u 0.1u
VSD2_1V8
C C
C137 C138
0.1u 0.1u
D D
nRESET
E E
F F
G G
H H
12 12
LGE Internal Use Only