Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG W720 LG W720 2
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10. CIRCUIT DIAGRAM
10. CIRCUIT DIAGRAM
10.1 BB Circuit
1 2 3 4 5 6 7 8
C100 C101
HSP100
HSP101
HSP102
HSP103
A 10u/16V 22n A
3
2
1
A_case
R100
CLK
RST
VCC
C109 C103 20K VR2B
100n/16V 150p 4 6
J100 (2012)
GND
VPP
Q100
IO
3
LG_AMP_SIM NDC652P
1 2 5
7
6
5
R117
0R
VBAT_2
5 D100
2 4 CRS08
U101 3
VR2B
SN74HC1GU04DCKR VBAT
VR2B R116
0.2R(1%)
VR2B VR2B (2012)
B B
R118
10K
R119
OUT
R120 U102 0R
VCC_EXT
0R
GND
R121 1 A0 VCC 14
10K R122
2 B0 A2 13
IN
5
1
R123 10K
Q101 4
0R
HSP129
2 3 O0 B2 12
RN1307
3
U103
P0402FC12C
4 A1 O2 11
NC7SZ32
V102
5 B1 A3 10
6 O1 B3 9
VCHG VBAT R124
7 GND O3 8 0R
C C
L100
P0402FC12C P0402FC12C
MC74VHC126 VBAT VBACKUP
J102
V100 V101 LG_LCD_CON_30P
C105 1
VDD_3.0V
47p 2
MAIN_CS
L104 BLM15AG121PN1 3
A0 (D/I)
4
D0
R101 VR2B L106 BLM15AG121PN1 5
D1
27
26
20K 6
D2
L108 BLM15AG121PN1 7
D3
8
D4
4 L110 BLM15AG121PN1 9
VCHG2 D5
7
5
3
1
D 5 L111 BLM15AG121PN1 10 D
VCHG1 R103 D6
R104 11
MNR04 D7
21
BATT2 10K 10K
22 L113 BLM15AG121PN1 12
BATT1
8
6
4
2
R105 _WR
L114 BLM15AG121PN1 13
24 100R 14
_RES
AUXI VSS
23 R109
CTS
20 L190 BLM15AG121PN1 220R 15
RTS LED_EN
15 16
TX VBACKUP
14 17
TXD I_LED1
18
I_LED2
18 R107 4.7R 19
AUXOP I_LED3
17 R108 4.7R L124 BLM15AG121PN1 20
AUXON EL_EN
21
R110 VBAT
47R MNR04
13 2 1 L115 BLM15AG121PN1 22
RXD SUB_CS
10 4 3 L116 BLM15AG121PN1 23
RX CS2 (A2)
3 6 5 24
DSR VSS1
2 8 7 25
HANDSFREE VBAT1
E 26 E
MOTOR
6 L117 BLM15AG121PN1 27
POWER_ON (REC_N) L118 28
REC-
BLM15AG121PN1 REC+
L119 BLM15AG121PN1 29
SPK-
11 L120 BLM15AG121PN1 30
TDO SPK+
9
TMS
8
TCK
7
HSP512
HSP127
HSP126
HSP128
HSP514
TDI
HSP134
HSP137
16
DCD
1 C108 R114
HSP104
HSP106
HSP107
HSP108
HSP109
HSP110
HSP111
HSP112
HSP113
HSP114
HSP116
HSP117
HSP118
HSP119
HSP120
HSP121
HSP122
AUXGND R113 n.m MNR04 C110
12 2 1
GND2 1uF
19 4 3
GND1 47p (1608)
6 5 1M
8 7
25
C106 C107
47p 47p
F F
R115 Section Date Sign & Name Model Sheet/Sheets
0R Designer 02.04.11 D.S.JUNG 1/6
J101
Checked 02.04.11 N.S.KIM Drawing
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