Circuit Diagram - LG KP235 Service Manual

7. CIRCUIT DIAGRAM

1 2 3
UAT100
VBAT
3G 2.5G
1
GND GND
2
RX RX UART_RX
3
A TX TX UART_TX
4
VCHAR NC1
5
ON_SW RPWRON
ON_SW
6
VBAT VBAT
7
PWR NC2
8
URXD NC3
9
UTXD NC4
10
DSR DSR_DET
11
RTS
12
CTS
J6
ADD01 ADD1
K5
ADD02 ADD2
H7
B ADD03 ADD3
G4
ADD04 ADD4
G5
ADD05 ADD5
G9
ADD06 ADD6
H8
ADD07 ADD7
G8
ADD08 ADD8
F9
ADD09 ADD9
F7
ADD10 ADD10
F8
ADD11 ADD11
E9
ADD12 ADD12
TPs for MP
E12
ADD13 ADD13
E16
ADD14 ADD14
F11
ADD15 ADD15
E11
ADD16 ADD16
D16
ADD17 ADD17
D14
TxD_TP UART_TX ADD18 ADD18
D11
C ADD19 ADD19
D12
RxD_TP UART_RX ADD20 ADD20
D13
ADD21 ADD21
E10
DSR_TP DSR_DET ADD22 ADD22
T6
RPWRON RPWRON KEY_COL0 KEYPADCOL0
U5
KEY_COL1 KEYPADCOL1
U6
KEY_COL2 KEYPADCOL2
T7
KEY_COL3 KEYPADCOL3
T5
KEY_ROW0 KEYPADROW0
U4
KEY_ROW1 KEYPADROW1
R8
KEY_ROW2 KEYPADROW2
R6
X100 C119 KEY_ROW3 KEYPADROW3
R7
NA KEY_ROW4 KEYPADROW4
D
3
4 T10
OSCIN
U10
R102 OSCOUT
2 1 10M B1
26M CLKIN
C120
C2
32.768KHz
1000p NC1
D8
MC-146_12_5PF
C121 NC2
E1
NA NC3
F1
NC4
F3
NC5
G1
NC6
K12
LGND
E
P7
NC17
P10
NC18
R2
NC19
R9
NC20
T3
NC21
T4
NC22
M2
VIBRATOR GPIO_0
N4
GENIE_RX GPIO_1
N3
NC7
N2
GENIE_TX GPIO_3
F
P9
DSR_DET GPIO_6
P2
NC8
P3
FOLDER_DET GPIO_8
R1
NC9
T1
NC10
T2
NC11
U1
NC12
P5
AIT_13M GPIO_14
U2
nLCD_RESET GPIO_15
R4
nAIT_RESET GPIO_16
P6
nADD23_L GPIO_17
E3
SIM_RST GPIO_23
D2
NC13
E2
C SIM_DATA SIMDATAOP
E4
SIM_CLK SIMCLK
B2
JACK_DETECT GPIO_32
F14
LIGHT1
H13
KEY_BACKLIGHT LIGHT2
1V8_VRTC J15
LIGHT3
P8
LCD_BACKLIGHT_CTRL GPO_22
VCHG_ABB T12
VMEMSEL
C131 1u D17
R109 REF
C15
2.2K
NC14
C14
C134 NC15
VBAT A13
0.1u
C133 RF_TEMP TEMP2
4.7u A14
AUXADC1
B14
AUXADC2
T13
D VRTC
C12
VCHG
A12
GATEDRIVE
C13
ISENSE
B13
VBATSENSE
R111 68K F17
BATT_TEMP REFCHG
B12
BATTYPE
R112 0
F5
LCD_ID GPIO_18_TCK_DBB
2V8_VEXT R113 0 F2
R116 C139 BT_LDO_EN GPIO_19_TMS_DBB
R114 0 F6
120K 0.1u CHG_EN GPIO_20_TDI_DBB
R117 0 G3
R119 AMP_SHDN GPIO_21_TDO_DBB
R120 0 F4
JTAGEN
NA T16
KEY_ROW0 KEYOUT
U17
POWERKEY KEYON
M5
BT_PCM_CLK USC0
L3
UART_RX USC1
M7
E UART_TX USC2
L2
USC3 USC3
M3
HOOK_DET USC4
N6
CHG_DET USC5
N5
SEND_KEY USC6
Shield CAN
(Finger Type)
F OJ100 OJ101
1 2 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 5 6 7
2V85_VSIM 1V8_VRTC
R100
2.2K
C100
BAT100
0.1u
C101
2V8_VEXT 2V8_VMEM VBAT 1V8_VCORE
0.1uF
(Backup Batt. : 2V, 0.5mAh)
C103 C104 C105 C106 C102 C108 C109 C110
C107
0.1u
0.1u 22p 0.1u 22p 10u 22p 0.1u 22p
2V8_VMEM 1V8_VCORE
2V8_VEXT 2V75_VABB
C11
VEXT01
R13
VMEM
G17
VABB
U11
VCORE
P16
VMIC
F16
VVCXO
R14
VSIM
A11
DATA0 DATA00
D9
DATA1 DATA01
E8
DATA2 DATA02
C9
DATA3 DATA03
A8
DATA4 DATA04
C8
DATA5 DATA05
B8
DATA6 DATA06
E7
DATA7 DATA07
A7
DATA8 DATA08
C7
DATA9 DATA09
B7
DATA10 DATA10
C6
DATA11 DATA11
B6
DATA12 DATA12
D6
DATA13 DATA13
A5
DATA14 DATA14
C5
DATA15 DATA15
D5
NHWR nUBS
D4
NLWR nLBS
C4 WR
NWR nWR
B5 RD
NRD nRD
D3
NROMCS nROMCS_1
B3 RAM_CS
NRAMCS nRAM_CS
C3
NGPCS0 nROMCS_2
A2
NGPCS1 nGPCS1
C10
NDISPLAYCS ADD23_H
G2
NC26
H3
GPO_3 PA_BAND
H2
NC27
H6
GPO_8 BT_RESET
J3
GPO_9 ANT_SW
J4
GPO_10 AIT_BYPASS
J2
GPO_11 PA_EN
K3
GPO_19 S_EN
M6
GPO_20 S_DATA
K2
GPO_21 S_CLK
P12
U104 ABBRST
ABBRESET
P11
GPO_24
H10 R103 NA
INT
H9
AD6724
GPIO_4_INT BT_DBB_INT
R104 0
L10
BSDI_ABB
L9
BSDO_DBB
K14
EUSY0354201 CSDO_ABB
K15
CSDI_DBB
M16
CSDI_ABB
N16
CSDO_DBB
K11
BSDO_ABB
K10
BSDI_DBB
L12
MCLKEN MCLKEN
L13
CLKOUT_GATE
K9
BSOFS_ABB
K8
BSIFS_DBB
J11
BSIFS_ABB
J10
BSOFS_DBB
B10
VCXOEN VCXOEN
B9
CLKON
J14
ASFS_ABB ASFS
J13
ASFS_DBB BT_DBB_CLKON
J8
ASDO_ABB
J7
ASDI_DBB
H12
ASDI_ABB
H11
ASDO_DBB
U15
DBBON
U14
PWRON
N15
TXON
N14
GPO_1
M12
RXON RXON
N12
GPO_0
M11
CSFS_ABB
M10
CSFS_DBB
R12
RESET
A3
NRESET
M15
GPO_6 ASM
L15
ASM
L14
MCLK CLKOUT
M14
CLKOUT
C132 1u
A15
REFBB
E17
AFCDAC
C16
PA
A16
IP IP
B16
IN IN
B17
QP QP
A17
QN QN R110
T15
SPWR2
0
M17
AIN1P
N17
AIN1N
P17
AIN2N
R17
AIN2P
L16
AIN3P
L17
AIN3N
H16 R115 4.7
AOUT1P
K17 R118 4.7
AOUT1N
P15
AOUT2P2
R16
AOUT2P1 C144
R15
AOUT2N1 39p
P14
AOUT2N2
H17
AOUT3P
J17
AOUT3N
F12
NC28 C146
39p
C148
39p
4 5 6 7
8 9 10 11
2V75_VVCXO
2V5_VMIC 2V85_VSIM
C111 1u
C112 1u
C113 2.2u
C114 1u
C115 2.2u
C116 1u
C117 1u
ADDRESS 23 MAKER
2V8_VMEM
C118
0.1uF
5
1
ADD23_H VCC
4
2
nADD23_L
GND
R101
3
U100
100K
NL17SZ08XV5T2
MAIN ROM_CS
2V8_VMEM
C122
0.1uF
5
1
VCC
nROMCS_2
4
2
nROMCS_1
GND
3 U101
R105
ADD24 NL17SZ08XV5T2
0
D100
1
3
VCXOEN
2
R106
10K KDR331V
LCD_CS MAKER
RPWRON
D101
R107
100K
RB521S-30
R108
nRESET
200
C129 C130
47n 47n
nGPCS1
ADD21
AFC
TX_RAMP _SUB_LCD_CS
2V8_AIT_BT
C135 C136
47p 0.068u
C137 1u
VINNORP
VINNORN
AUXIN
AUXIP
C140 C141 C142 C143
SPK_RCV_P 39p 39p 39p 39p
C138
39p
C145 SPK_RCV_N
39p
SPK_P
SPK_N
C147
39p
FB301
HEADSET_SPK_OUT_P
C149
39p
8 9
- 83 -
12 13 14 15
INTEL, 256*64 1die
U102
PF38F4050L0ZBQ0
G1 H2
ADD01 A0 D0 DATA00
F1 H3
ADD02 A1 D1 DATA01
E1 G3
ADD03 A2 D2 DATA02
D1 H4
ADD04 A3 D3 DATA03
B1 J5
ADD05 A4 D4 DATA04
C1 G5
ADD06 A5 D5 DATA05
F2 J6
ADD07 A6 D6 DATA06
E2 H7
ADD08 A7 D7 DATA07
F6 G2
ADD09 A8 D8 DATA08
D7 J3
ADD10 A9 D9 DATA09
E7 G4
ADD11 A10 D10 DATA10
B8 J4
ADD12 A11 D11 DATA11
C8 H5
ADD13 A12 D12 DATA12
D8 G6
ADD23
ADD14 A13 D13 DATA13
F7 H6
ADD15 A14 D14 DATA14
E8 J7
ADD16 A15 D15 DATA15
F8
ADD17 A16
D2
ADD18 A17
B2
ADD19 A18
B3
ADD20 A19
E6 J1
ADD21 A20 _S_CS1
B7 C5
ADD22 A21 S_CS2
C7
ADD23 A22
C3
ADD24 A23
D3 D6
A24 _P1_CS nRAM_CS
2V8_VMEM 1V8_VCORE E3 K2
A25 _P2_CS
K8
P_MODE
B5
VCC11
L4
VCC12
B6 C2
VCC21 _R_LB nLBS
K6 D5
VCC22 _R_WE
J8 H1
VCCQ1 _R_OE
K7 F3
VCCQ2 _R_UB nUBS
L3
VCCQ3
D4
VPP
K5 K1
P_VCC _CE1 nROM_CS
K4 G8
S_VCC _CE2
K3
_CE3
B4 E4 2V8_VMEM
VSS1 _WP
C4 E5
VSS2 _ADV
L1 F5
VSS3 _WE nWR
L2 J2
nROM_CS VSS4 _OE1 nRD
L5 H8
VSS5 _OE2
L6 F4
VSS6 _RST nRESET
L7 G7
VSS7 WAIT
L8 C6
C123 C124 C125 C126
VSS8 CLK
0.1u 0.1u 0.1u 0.1u
C127
1000p
2V8_VMEM
U103 C128
0.1uF
1 8
A1 VCC
2 7
B1 Y1 _MAIN_LCD_CS
3 6
Y2 B2 nGPCS1
4 5
GND A2 ADD22
NL27WZ32USG
LGE Internal Use Only
16
A
B
C
D
E
F
C
D
E