LG GB220 - Page 115

7. CIRCUIT DIAGRAM
- 116 -
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C C
B
E
A
Key Backlight LED
D
Change the connection from pull-down to pull-up
8
5
143
C
5
B
D
E
A
VOL_DOWN
C
Key
E
SIM
D
Audio Sub System
(080702)
Speaker Receiver select switch was eliminated JAN. 12, 2009
6
MIC
13
74
Delete 10Kohm
2
6
F
8
VOL_UP
F
11 16
D
9
AUDIO AMP was eliminated JAN. 12, 2009
1
4
F
3
(080715)
12
2
1 7
uSD
15109
E
FLIP SWITCH
3
150
A3
MONO_IN+
E1
D1
MONO_IN-
C2
RIN ROUT
E2
SCL
B3
SDA
B2
B1
VDDA
VDDLS
B4
D2
VO_LDO
C4
VSSCP
R206
LM49150TLX
BYPASS
C3
D3
CIN CIP
D4 A2
GND GND_CP
E4
I2CVDD
A1
C1
LIN
LOUT
E3
MONO+
A4
MONO-
OB4-15L42-C33L
MIC200
1
2
U200
R208 150
VBAT
D201
DNI_VARISTER_1005
LEFT
R214
10K
R213
470K
100K
R212
R211
1.2K
18p
C226
R209
20
LD200
DNI
C225
DNI
0.1uC224
C223
C222
1000p
2.2u
SEND
C212
1V81_VDD
UP
SW206SW205
SW203SW202 SW204
SW201
6
C7
7
GND1
GND2
89
GND3
GND4
10
SW200
1
J200
C1
1
C2
2
3
C3
C5
4
5
C6
KTC4075E
EQBN0007601
2
3
2.2u
Q200
C211
C213
C210
0.1u
47p
C209 2.2u
C214
2.2u
20
10K
R216
R210
150
1
2
3
4
R207
CN200
VA203 VA204
RCLAMP0521P_TCT
EDTY0009601
SEVY0005402
ICVS0505500FR
VA202
VA201
EM-0781-T5
NC
3
OUT
2 1
VDDVSS
4
VA200
VMMC
U201
220nC206
C204 0.1u
C203
DNI
C202 0.1u
C201
47p
2.2u
0
C200
4.7K
R220
R219
10K
R218
MENU
LD201
LEWWS47PAZ
EDLH0013403
SW211
SW210
DETECT_A
DETECT_B
DUMMY1
DUMMY2
DUMMY3
GND
VDD
VSS
AXA463062C02
CD_DAT3
CLK
CMD
DAT0
DAT1_2
DAT2
2V85_VSIM
SEARCH
J201
C208 220n
C221
DNI
VRTC_2V0
VMMC
C220
2.2K
DNI
R204
0.1u
R203
R202
0.1u
R201
2.2K 1K
R200
D200
DNI_VARISTER_1005
SW207
2V85_VSIM
STAR
OK
VMMC
1u
1u
C217
C216
10K
R217
VBAT
1V81_VDD
R215
10K
47p
C207
10u
ECTH0005601
C205
SW209
VMIC
SW208
RIGHT
END
DOWN
SHARP
220n
Clear
C219
C218
27p27p
C215
KP_OUT5
KEY_BL_ENKP_IN4
KP_IN1
1V81_VDD
LSP
LSN
RCV_P
I2C_SDA
I2C_SCL
HP_ROUT
HP_LOUT
RCV_N
KP_IN0
KP_OUT0
KP_OUT3
FLIP
KP_IN2
KP_IN3
KP_OUT1
END_KEY
uSD_D3
KP_OUT2
uSD_CLK
uSD_DET
HP_A_LOUT
HP_A_ROUT
uSD_CMD
uSD_D0
uSD_D1
uSD_D2
SIM_RST
SIM_CLKSIM_DATA
MIC_P
MIC_N