Circuit Diagram - LG MG180C Service Manual

7. CIRCUIT DIAGRAM

1 2
DSR
CTS
RTS
RXD
TXD
RX
TX
A
H10
LCD_BACKLIGHT TSPDI_IO4
H11
S_DATA TSPDO
J14
S_CLK TSPCLKX
H13
TSPEN0
H12
S_EN TSPEN1
H14
TSPEN2
G12
TSPEN3
M12
PDNB TSPACT0
M14
PA_ON TSPACT1
L12
PA_BAND TSPACT2
L13
ANT_SW1 TSPACT3
J10
ANT_SW2 TSPACT4
K11
TSPACT5
K13
TSPACT6
B K12
TSPACT7
K14
TSPACT8
J11
TSPACT9
J12
TSPACT10
J13
TSPACT11
D2
A(22)
ADD22_CS4
L3
A(21)
ADD21
A(20) L2
ADD20
L1
A(19)
ADD19
A(18) J5
ADD18
K4
A(17)
ADD17
A(16) K2
ADD16
K3
A(15)
ADD15
A(14) J4
ADD14
J3
A(13)
ADD13
J2
A(12)
ADD12
A(11) J1
ADD11
H5
A(10)
ADD10
A(9) H4
ADD9
H2
A(8)
ADD8
A(7) H3
ADD7
H1
A(6)
ADD6
A(5) G3
ADD5
G2
A(4)
C ADD4
G4
A(3)
ADD3
G5
A(2)
ADD2
F2
A(1)
A(1:22) ADD1
F3
ADD0
D(15) B3
DATA15
A3
D(14)
DATA14
D(13) D4
DATA13
C4
D(12)
DATA12
B4
D(11)
DATA11
E5
D(10)
DATA10
D5
D(9)
DATA9
D(8) B5
DATA8
C5
D(7)
DATA7
D(6) E6
DATA6
C6
D(5)
DATA5
D(4) A6
DATA4
D6
D(3)
DATA3
D(2) E7
DATA2
D7
D(1)
DATA1
D(0) B7
DATA0
D
D(0:15)
_WR
_RD
_BHE
_BLE
MIDI_CS
MAIN_CS
RAM_CS
ROM_CS
FDP
KBC(0:3)
KBR(0:4)
E
1 2
LGIC(42)-A-5505-10:01
3 4 5
PCM_TX
IF_MODE
MELODY_INT
RF_EN
LCD_RESET
U101
D751749GHH
LDO OUT VOLTAGE LOAD MAX
UART1
3G 2.5G
V_DBB 1.5V 120mA
1
GND GND
2
RX RX RXD V_IO 2.8V 100mA
3
TX TX TXD
4
UFLS NC1 V_MEM 2.8V 60mA
5
ON_SW ON_SW RPWON
6
VBAT VBAT VBAT V_RAM 2.8V 50mA
7
PWR NC2
8
URXD
NC3 V_SIM 2.85V 10mA
9
UTXD NC4
10
DSR
DSR V_RTC 1.5V 30uA
11
RTS RTS
12
CTS CTS V_ABB 2.8V 50mA
3 4 5
6 7
R100 470K
32.768KHz
C100
R101 NA 2 1
15p
C101
V_RTC
10p R104 NA
4
3
C102
C103 470p
MC-146X100
15p
R107 680
10K
0.1u
R108
C105
N1
NIBOOT
F10 E3
ON_OFF ONNOFF
D12 D3
RESPWRONZ RESPWONZ
B14 R109 47K D2
IT_WAKEUP ITWAKEUP
M3 E6
EXT_IRQ INT2
P1 H6
EXT_FIQ INT1
G3
TDR
D11 H1
NBSCAN TEN
J6
TEST3
B11 F6
NEMU0 TEST4
E10
NEMU1
D10 E7
TDI TDO
C10 D7
TDO TDI
B10 D8
TCK TCK
E9 E8
TMS TMS
L11 K2
BFSR BFSX
K10 J2
BDR BDX
P12 H3
BFSX BFSR
M11 J3
BDX BDR
P14 F5
VDX VDR
N13 H5
VDR VDX
M13 G5
VFSRX VFS
N12 K3
VCLKRX VCK
N7 J5
MCUDI UDX
M7 K5
MCUDO UDR
M8 K6
MCUEN0 UEN
P8
MCUEN1_IO8
L8
R110 100K
MCUEN2_IO13
E5
DBBSIO
G13 F4
SIM_IO DBBSCK
F13 G4
SIM_CLK DBBSRST
G10
SIM_RST
B8
R111 LEDA
F14 V_IO B10
SIM_PWRCTRL LEDB1
A10
10K
R112 LEDB2
G11 C8
SIM_CD LEDC
B9
100K
GNDL1
A9
GNDL2
LEDB
LEDC
V_DBB V_IO V_FLASH V_SRAM V_RTC V_ABB
-> 2.2uF
Section
Designer
Checked
Approved
Iss. Notice No. Date Name LG Electronics Inc.
- 93 -
8 9 10
UPR
VBAT VBAT
R103 10K
R102 33K
26MHz
PWON
RPWON
PCHG
VCCS
VBATS
VCHG
ICTL
MCLK
TDI
TDO_ARM
TCK
TMS
TDO
K4
APC APC
J4
AFC AFC
H4
DAC
C106 0.033u
D9
BULIP TXIP
D10
BULIM TXIN
C10
BULQP TXQP
C9
BULQM TXQN
F9
BDLIP RXIP
F10
BDLIM RXIN
E10
BDLQP RXQP
E9
BDLQM RXQN
J9
EARP RCV_P
J10
EARN C107 C108
K9
U100 3.3p 3.3p
AUXOP
K10
AUXON RCV_N
G7
TWL3025BZGMR
AUXI
H9
HSO HSO
K7
HSMICP HSMICP
K8
HSMICBIAS HSMICBIAS
G6
GNDAV
J7
MICIP MICP
H7
MICIN MICN
J8
MICBIAS MICBIAS
C4
SIMCK SIM_CLK
B3
SIMIO SIM_IO
D4
SIMRST SIM_RST
B6
ADIN1 JACK_DETECT
A6
ADIN2 BATT_TEMP
C7
ADIN3 TEMPSENSE
C6
ADIN4 HOOK_DETECT
E1
VBACKUP
B4
VRSIM
G8 V_SIM
TESTV
C109
0.1u
UPR
R113 10K
C110
2.2u <-(1608)
VBAT
C111
0.1u
R114
GUIDE HOLE
C112
C113 10K
0.1u
0.1u
OJ100 OJ101 OJ102 OJ103
Date Sign & Name
MODEL
MG180c
06/02/06
JASON
G.C.LIM
DRAWING
B/B
NAME
H.KANG
DRAWING
Ver_1.0
NO.
LG Electronics Inc.
A
B
C
D
Sheet/
Sheets
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