LG 300G Schematics
- 73 -
7. CIRCUIT DIAGRAM
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MIC_P
MIC_N
HS_MICN
HS_MICP
REC_P
REC_N
12
MEMORY
SHIELD CAN
SC100
1
2
3
4
5
6
_RESET
2V8_VMEM
2V8_VMEM
C118
0.1u
R102 100K
100KR101
7
8
9
10
11
12
14
DATA00
DATA01
DATA02
DATA03
DATA04
DATA05
DATA06
DATA07
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
_ROM_CS
_RAM_CS
VA100
ICVN0505X150FR
_LBS
_UBS
_RD
_WR
15
U100
G2
DQ0
E3
DQ1
H3
DQ2
F4
DQ3
F5
DQ4
H6
DQ5
E6
DQ6
G7
DQ7
H2
DQ8
F3
DQ9
G3
DQ10
H4
DQ11
G6
DQ12
F6
DQ13
H7
DQ14
F7
DQ15
G4
VCCF
G5
VCCS
F2
_OE
A5
_WE
A3
_LB
B3
_UB
F1
_CE1F
G1
_CE1S
B5
CE2S
C4
RY__BY
A4
WP_ACC
B4
_RSTF
S71GL064NB0-0U
EUSY0345301
SC101
1
2
3
4
5
6
7
8
OJ101
OJ100
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
VSS1
VSS2
RFU1
RFU2
RFU3
RFU4
OJ102
1
2 13
3
4
5
A
B
C
D
X100
3
R103
4
10M
12
32.768KHz
MC-146_12_5PF
EXXY0004602
C121
C120
DNI
DNI
26M_DBB
ADD01
ADD02
ADD03
ADD04
ADD05
ADD06
ADD07
ADD08
ADD09
ADD10
ADD11
ADD12
ADD13
ADD14
ADD15
ADD16
ADD17
ADD18
ADD19
ADD20
ADD21
ADD22
KEY_COL0
KEY_COL1
KEY_COL2
KEY_COL3
KEY_ROW0
KEY_ROW1
KEY_ROW2
KEY_ROW3
KEY_ROW4
E
VBAT
URT100
3G 2.5G
1
GND
F
C
D
E
GND
RX
TX
VCHAR
ON_SW
VBAT
PWR
URXD
UTXD
JTAG
TRACE32(20 Pin)
2
RX
3
TX
4
NC1
5
ON_SW
6
VBAT
7
NC2
8
NC3
9
NC4
10
DSR
11
RTS
12
CTS
TP100_S
TP101_S
RPWRON
DSR_DET
D101
EDZTE615_1B
100ohm
R109
VCHG
DSR_DET
BATT_TEMP
LCD_ID
_CHG_EN
SPK_SEL
TP100_S
TP101_S
DSR_DET
LCD_SCLK
_LCD_RESET
_LCD_CS
LCD_SDATA
SIM_RST
SIM_DATA
SIM_CLK
1V8_VRTC
C125
0.1u
R110
TP107
_JACK_DET
_KEY_BACKLIGHT
LCD_DIM_CTL
R108
2.2K
C124
4.7u
VBAT
68K
KEY_ROW0
POWERKEY
USC1
USC2
VIBRATOR
CHG_DET
J6
ADD1
K5
ADD2
H7
ADD3
G4
ADD4
G5
ADD5
G9
ADD6
H8
ADD7
G8
ADD8
F9
ADD9
F7
ADD10
F8
ADD11
E9
ADD12
E12
ADD13
E16
ADD14
F11
ADD15
E11
ADD16
D16
ADD17
D14
ADD18
D11
ADD19
D12
ADD20
D13
ADD21
E10
ADD22
T6
KEYPADCOL0
U5
KEYPADCOL1
U6
KEYPADCOL2
T7
KEYPADCOL3
T5
KEYPADROW0
U4
KEYPADROW1
R8
KEYPADROW2
R6
KEYPADROW3
R7
KEYPADROW4
T10
OSCIN
U10
OSCOUT
B1
CLKIN
R104
C119
C2
1000p
TP103
NC1
1M
D8
NC2
E1
NC3
F1
NC4
F3
NC5
G1
NC6
K12
LGND
P7
NC17
P10
NC18
R2
NC19
R9
NC20
T3
NC21
T4
NC22
M2
GPIO_0
TP100
N4
GPIO_1
N3
NC7
TP101
N2
GPIO_3
P9
GPIO_6
P2
NC8
P3
GPIO_8
R1
NC9
T1
NC10
T2
NC11
U1
NC12
P5
GPIO_14
U2
GPIO_15
R4
GPIO_16
P6
GPIO_17
E3
GPIO_23
D2
NC13
E2
SIMDATAOP
E4
SIMCLK
B2
GPIO_32
F14
LIGHT1
H13
LIGHT2
J15
LIGHT3
P8
GPO_22
T12
VMEMSEL
1uC122
D17
REF
C15
NC14
C14
NC15
A13
TEMP2
A14
AUXADC1
B14
AUXADC2
T13
VRTC
C12
VCHG
A12
GATEDRIVE
C13
ISENSE
B13
VBATSENSE
F17
REFCHG
B12
BATTYPE
F5
GPIO_18_TCK_DBB
F2
GPIO_19_TMS_DBB
F6
GPIO_20_TDI_DBB
G3
GPIO_21_TDO_DBB
F4
JTAGEN
T16
KEYOUT
U17
KEYON
TP104
M5
USC0
L3
USC1
M7
USC2
L2
USC3
TP105
M3
USC4
TP106
N6
USC5
N5
USC6
C138
0.1u
6
2V8_VMEM
L1
J1
VEXT1
VEXT0
C109
0.1u
H1
VEXT2K1VEXT3
2V85_VSIM
C102
0.1u
C100
C104
33u
C110
22p
D1
A10
VMEM1
VMEM2
22p
10V Over
ECTH0005501
U13
T11
VSIM_2
T9
E15
F15
B11
U12
VBAT3
VBAT8
VBAT1
VBAT2
VDDRTC
VBAT_4_6
VBAT_5_7
A4
A6
E6
VMEN4
VMEM3
2V8_VEXT
C108
C107
22p
0.1u
1V8_VRTC
VBAT
U101
AD6724
Z3X-BOX.COM
GND61
GND62
GND2K4GND3
GND4
GND51
GND52
N9
AGND04
N11
AGND06
F10
AGND31
R11
GND54
GND63
DGND
NC25
GND9
G10
AGND32
T14
H14
AGND12
H15
T8
VSSRTC
D7
AGND01
A1
K6
P4
G6
D15
C17
N10
AGND05
N13
AGND36
GND7N7GND8
AGND2
B4
M4
B15
D10
GND10U3GND11
U8
GND56
AGND4
T17
K16
U16
C103
0.1u
VCORE1M1VCORE2A9VCORE3
SGND1
GND1
U9
J16
GND55
8
1V8_VCORE
1KR100
C106
C105
0.1u
22p
N1
C1
P1
VPEG
VCORE4
VEXT01
VMEM
VABB
VCORE
VMIC
VVCXO
VSIM
DATA0
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
DATA9
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
NHWR
NLWR
NWR
NRD
NROMCS
NRAMCS
NGPCS0
NGPCS1
NDISPLAYCS
NC26
GPO_3
NC27
GPO_8
GPO_9
GPO_10
GPO_11
GPO_19
GPO_20
GPO_21
ABBRESET
GPO_24
INT
GPIO_4_INT
BSDI_ABB
BSDO_DBB
CSDO_ABB
CSDI_DBB
CSDI_ABB
CSDO_DBB
BSDO_ABB
BSDI_DBB
MCLKEN
CLKOUT_GATE
BSOFS_ABB
BSIFS_DBB
BSIFS_ABB
BSOFS_DBB
VCXOEN
CLKON
ASFS_ABB
ASFS_DBB
ASDO_ABB
ASDI_DBB
ASDI_ABB
ASDO_DBB
DBBON
PWRON
TXON
GPO_1
RXON
GPO_0
CSFS_ABB
CSFS_DBB
RESET
NRESET
GPO_6
ASM
MCLK
CLKOUT
REFBB
AFCDAC
PA
IP
IN
QP
QN
SPWR2
AIN1P
AIN1N
AIN2N
AIN2P
AIN3P
AIN3N
AOUT1P
AOUT1N
AOUT2P2
AOUT2P1
AOUT2N1
AOUT2N2
AOUT3P
AOUT3N
L11
AGND02
M13
AGND03
K13
LGND1
G12
AGND33
G13
AGND34
G14
AGND35
G15
AGND11
NC28
GND53
G16
97
BACK-UP BATTERY
BA100
C101
1u
NBL414R-F9J
SBCL0001701
SMD TYPE
1V8_VCORE
2V8_VMEM
2V75_VABB
C11
R13
G17
U11
P16
F16
R14
A11
D9
E8
C9
A8
C8
B8
E7
A7
C7
B7
C6
B6
D6
A5
C5
D5
D4
C4
B5
D3
B3
C3
A2
C10
G2
H3
H2
H6
J3
J4
J2
K3
M6
K2
P12
P11
H10
H9
L10
L9
K14
K15
M16
N16
K11
K10
L12
L13
K9
K8
J11
J10
B10
B9
J14
J13
J8
J7
H12
H11
U15
U14
N15
N14
M12
N12
M11
M10
R12
A3
M15
L15
L14
M14
A15
E17
C16
A16
B16
B17
A17
T15
M17
N17
P17
R17
L16
L17
H16
K17
P15
R16
R15
P14
H17
J17
F12
2V8_VEXT
D100
KDS114E
C123
2V5_VMIC
DATA00
DATA01
DATA02
DATA03
DATA04
DATA05
DATA06
DATA07
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
_UBS
_LBS
_WR
_RD
_ROM_CS
_RAM_CS
PA_BAND
V_LOGIC
PA_EN
S_EN
S_DATA
S_CLK
TP102
RPWRON
R106
100K
200R107
1u
2V8_VEXT
39pC135
39pC137
39p
C136
SPK_P
SPK_N
HSO_N
IP
IN
QP
QN
2V75_VVCXO
2V85_VSIM
2V8_VEXT
C126
47p
C129
39p
10
C111 1u
C112 1u
C113 2.2u
R105
DNI
C127
0.068u
C130
39p
11
1uC114
1uC115
1uC116
1uC117
_RESET
AFC
TX_RAMP
R111
4.7
C128
R112
39p
4.7
C134
C131
C132
39p
39p
C133
39p
39p
16
A
E1
ADD01
D1
ADD02
C1
ADD03
B1
ADD04
D2
ADD05
C2
ADD06
B2
ADD07
A2
ADD08
A6
ADD09
C6
ADD10
D6
ADD11
A7
ADD12
B7
ADD13
C7
ADD14
D7
ADD15
B8
ADD16
E8
ADD17
D3
ADD18
C3
ADD19
B6
ADD20
C5
ADD21
C8
ADD22
G8
E2
D8
E7
F8
H5
B
C
D
E
9
10
11
12
13
14
15
16
F
C
D
OJ103
E
F
1
3
4
5
62
7
8
9
10
11
- 74 -
7. CIRCUIT DIAGRAM
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
8
R410
1K
C429
C428
39p
0.1u
C437
C438
220n
C440
0.1u
NX3225SA(EXS00A-CS00275)
26MHz
EXXY0018403
0.1u
C442
C443
27p
27p
C421
1000p
C444
27p
AFC
S_DATA
S_EN
S_CLK
9
2V75_VVCXO
C430
0.1u
26M_DBB
2V8_VMEM
C434
0.1u
VBAT
C435
0.1u
C
C436
0.1u
D
21
IB
4
C423
39p
19
REFIN
REF_OP
SDATA7SEN
VCC_BBI
6
5
17
18
REFINB
VCC_REF
VAFC_NC
VCC_TXVCO
TXOP_HI
TXOP_LO
NC
SCLK
8
745
VLDO2
VLDO1
VBAT
VLDO3
QP
QN
16
15
14
VDD
13
12
11
10
9
1
TP400
L407
3.3nH
C413
DNI
L400
10nH
SW400
TP401
1nH
L403
ANT
G1
RF
OUT400
C400
2.2p
A
B
C
TP402
4.7nH
L404
C411
4.7p
L409
1nH
RF500
ENWY0004501
G2
C424
C425
22p
DNI
2
TP404
TP403
TP405
1nH
L405
C412
DNI
C427
DNI
3 10
1nH
L408
6.8nH
L406
C408
C407
39p
4
2
3
5
6
PCS_RX
7
GSM_RX
8
GND1
9
GND2
10
GND3
11
ANT
BS
TX_EN
VRAMP
U400
SKY77517
GND5
GND6
GND4
13
14
12
VLOGIC
GND7
15
PGND
GSM_IN
21
VBATT
GND9
PCS_IN
GND8
C409
39p
27p
1
20
19
18
NC
17
16
FL400
1
I1
4
I2
2G13G25G310
C410
27p
C414
C417
0.01u
33u
TLJR336M010R3500
ECTH0005501
9
O1_1
8
O1_2
7
O2_1
6
O2_2
G4
B9310
SFSB0001301
R400 100ohm
100ohmR401
R402 1K
R403 100ohm
C418
33p
C419
18p
VBAT
C420
PA_BAND
PA_EN
TX_RAMP
V_LOGIC
12p
L401
5.6nH
L402
18nH
R405
6
4dB
R406
220
R409
180
C416 33p
C422 10p
R404
24
220
R408
30
R407
180
5dB
C426
0.1u
24
23
22QB20
C431
C432
6.8p
6.8p
6.8pC433
6.8pC439
Q
RX1900B
25
RX1900
VCC_BBQ
26
RX1800B
27
RX1800
RX900B
RX900
RX850B
RX850
GND
AD6548
VCC_FE
1
2
I
U401
3
28
29
30
31
32
33
EUSY0280101
C441
D
Z3X-BOX.COM
IN
39p
IP
X400
34
12
E
MODE
GSM850 RX
PCS1900 RX
GSM850 TX
PCS1900 TX
V_LOGIC TX_EN
H
H
H
H
BS
L
L
H
L
L
H
HH
45
6
7
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