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7. CIRCUIT DIAGRAM
1
2
A
CLOSE TO EARJACK
C200
0.1u
AUXIN
2V8_VMEM
2V8_VMEM
C211
R212
39p
1M
B
AUXOP
5
4
VIN-
1
VCC
JACK_DETECT
AUXIP
AUXIP
OUT
3
VIN+
GND
2
R215
C216
U201
330K
39p
NCS2200SQ2T2G
L
H
C
C221
R217
R218
100K
U202
TPA6203A1DRBR
1
AMP_SHDN
_SHUTDOWN
2
C226
BYPASS
0.47u
R219 10K
3
SPK_P
IN+
D
4
SPK_N
IN-
C227
R220
10K
0.47u
C228
220n
C229
R222
E
1
2
LGIC(42)-A-5505-10:01
3
4
5
2V5_JACK
2V8_VMEM
2V8_VEXT
R200
R201
NA
2K
R205
R202
20K
R203
1K
R204
0
HOOK_DET
NA
U200
1
STBY
2
R207
C204
C201
C202
GND
3
NA
NA
10u
VIN
NA
C206
(2125)
BH25FB1WHFV
NA
(2125)
C212
10u
FB200
600
R214
4.7
C213
0.1u
C219
C217
R216
C218
JACK_DETECT
1M
NA
NA
NA
REMOVE
INSERT
ACOUSTIC & MIDI
VBAT
VBAT
C220
C222
C223
C224
C225
10u
1u
NA
NA
(2125, 10V)
2.2u
0.1u
(1608)
39K
U203
NLAS5223BMNR2G
6
1
10
VDD
VCC
NO2
8
2
9
VO-
NO1
COM2
5
3
8
VO+
COM1
IN2
7
4
7
GND
SPK_RCV_P
IN1
NC2
REC_N
9
PGND
5
6
NC1
GND
REC_P
NA
39K
Iss.
3
4
5
6
7
8
2V5_VMIC
2V5_JACK
R206
1K
5
NC
6
BGND
4
VOUT
R208
C207
C205
2.2K
39p
(N.A)
NA
R209
R210
VINNORP
100ohm
0
C208
39p
C210
R211
VINNORN
100ohm
0.1u
5
1
3
R213
C214
4
2.2K
2
39p
J200
CLOSE TO MIC
SPK_RCV_N
SPK_SEL
R221
100K
Section
Date
Sign & Name
01/16
Designer
2007
01/16
Checked
C.O. LEE
2007
01/16
Approved
C.O. LEE
2007
Notice No.
Date
Name
LG Electronics Inc.
- 90 -
9
10
C203
10u
(2125, 6.3V)
MIC200
C209
1
2
39p
OB4-15L42-C33L
C215
39p
Sheet/Sheets
KP202
MODEL
K.N. KIM
2/6
DRAWING
AUDIO
NAME
DRAWING
VER-1.0
NO.
LG Electronics Inc.
LGMC
A
A
B
B
C
D
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