LG Electronics LG-C300 Cell Phone User Manual


 
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7. CIRCUIT DIAGRAM
LGE Internal Use OnlyCopyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
10
R327
DNI
C359
103U
21
11
10
9
8
7
31
6
41
5
51
4
61
3
71
2
18
1
19
20
21
22
23
GND_SLUG
VRAMP
TX_ENABLE
GPCTRL0
GPCTRL1
1DNG
VBATT
2DNG
2LRTCPG
BL_NIFR
9DNG
3DNG
8DNG
BH_NIFR
TNA
4DNG
4XR
GND5
GND6
GND7
RX1
RX2
3XR
123L
2.7n
33p
C302
C389 100p
2450MHz
FL303
42
31
IN OUT
GND1 GND2
303C
p33
p
3
3
403C
L301 3.3n 3.3nL302
Q301
2
1
3
22pC343
3.3nL303
TP319
TP321
SW301
43
2
1
ANT COMMON
G3 G4
DNI
C393
1n
L308
1p
C305
ANT302
C371 10p
C320
1p
GND301
C308
6.8p
C310
1u
24K
R303
22n
L304
869M894M,925M960MHz
FL301
SFSB0001803
105
63
72
94
81
IN_881_5 OUT_881_5
IN_942_5 OUT_942_5
GND1 GND2
GND3 GND4
GND5 GND6
R304
270ohms
4.7K
R305
470n
C312
470n
C313
L306 3.3n
C314
1.5p
C315
39p
5.1ohms
R306
10n
C316
C317
4.7u
1n
C318
1n
C319
27p
C341
L307
1.2n
DNI
C392
VBAT
613R 0
C322
33p
1n
C323
1.8n
L320
270n
L313
16 15 14 13 12 11 10 9
8
7 6 5 4 3 2 1
L
K
J
I
H
G
F
E
D
C
B
A
L
K
J
I
H
G
F
E
D
C
B
A
16 15 14 13 12 11 10 9
8
7 6 5 4 3 2 1
L309
2.2n
33p
C325
1n
C326
1.8n
L319
1805M1880M,1930M1990M
FL302
SFSB0001903
105
63
72
94
81
IN_1842_5 OUT_1842_5
IN_1960 OUT_1960
GND1 GND2
GND3 GND4
GND5 GND6
4.7u
C327
L310
DNI
TP325
TP324
TP327
TP326
TP322
DNI
C391
L318 2.2n
ANT304
SNMF0059501
23
1
FEED
GND2 GND1
C384 2.2u
673CIND
C394
27p
56pC306
IND 573C
BCM2070CB0KUFBXG
U302
2C
2D
2F
3D
6C
7A
7G
5E
4E
6B
B7
E3
E6
B3
E8B5
D7
D8G3
C8G2
F5A4
F4
G6C7
F6A8
F3E7
C4F7
B2
B4D1
G4
2A
1C
1B
1E
1F
1G
1A
5A
8B
8F
5G
6A
8G
3A
TABV
3ODDV
2ODDV
1ODDV
3CDDV
2CDDV
1CDDV
GERV
XPDDV
FRDDV
ANLDDV
FIDDV
FTDDV
VHGERV
RES
RFP RST_N
REG_EN
SCL TM0
SDA TM2
SPIM_CLK PCM_IN
SPIM_CS_N PCM_OUT
PCM_CLK
LPO_IN PCM_SYNC
XIN UART_TXD
XOUT UART_RXD
UART_RTS_N
GPIO_0 UART_CTS_N
GPIO_1
TCXO_OR_OUT_GPIO_5
TCXO_OR_IN_GPIO_6
GPIO_7
NI_XEOC
0TUO_XEOC
1TUO_XEOC
7SSV
6SSV
5SSV
4SSV
3SSV
2SSV
1SSV
TP320
ANT301
2
1
TP323
22p
C396
9.1n
L305
1V8_VDD
1n
C377
2.2u
C386
1V8_VDDVAUX
C385
2.2u
0
R326
10pC382
10nC381
10nC380
10nC383
10p
C378 C379
1u
600
TJ106-5001M1-BH
FB304
C374
1n
C373 1n
15KR308
DNI
C370 C372
DNI
27n
L312
R330
DNI
22p
C398
0
513R
L322
8.2n
L314
56n
R329
0
CLK32K
DBB_BT_INT
BT_DBB_INT
VLOGIC
BS2
FM_ANT
BT_CLK
PCM_CLK
PCM_RX
PCM_TX
PCM_SYNC
FM_LNA_EN
BS1
TX_EN
RX12
RX12X
RX34
RX34X
GSM_OUT
DCS_PCS_OUT
BT_CTS
BT_RTS
BT_RXD
BT_TXD
TX_RAMP
FM_ANT_1
FM_ANT_1
FSYS_EN
BT_RESET
LOW
LOW
LOW
LOW
LOW
LOW
TX_EN
LOW
.
LOW
HIGH
HIGH
LOW
HIGH
RF PART
.
.
LOW
HIGH
HIGH
BS2
.
LOW
LOW
HIGH
MODE
STANDBY
EGSM_RX
GSM850_RX
.
.
.
PCS_RX
DCS_RX
LB_TX
HB_TX
VLOGIC
LOW
HIGH
LOW
LOW
LOW
HIGH
HIGH
BS1
LOW
LOW
HIGH
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