LG C3400 Service Manual page 101

7. CIRCUIT DIAGRAM
1 2
A
C200
39p
B
JACK_DETECT
U200
JACK_DETECT
L REMOVE
H INSERT
2V8_VEXT
U201
1
C
GND NC
2
Vin VOUT
NCP563Q25T1
C214
0.1u
D
E
1 2
LGIC(42)-A-5505-10:01
3 4
2V5_JACK
R202
1K
C289 R203 R204 R211
0.1u
20K 1.5K 12K
AUXIN
C205 C206
R206
C204
20K NA 22u
NA
2V8_VEXT 2V8_VEXT
R201
1M
C209 33u R210
EAR_SPK_L
R214 100 R213
AUXIP
5
4 VIN-
1 VCC
OUT 3 VIN+ C217 33u R228
GND
EAR_SPK_R
2
R230
C212 R216
330K 39p 1M
2V5_JACK
4
3
C215
0.1u
VCHARGE
C216 R217
1u 15
Q201
3
R222
2
RPWRON
20K
1
R224
100K UMX1NTN
3 4 5
5 6 7
HOOK_DETECT
CLOSE TO EARJACK
C277
0.1u
VINNORP
C207
39p
J200
VINNORN
0 6
4.7 4
3
2
0 1
5
VBAT VCHARGE
U202
MAX4684EBC
C4
R218
SPK_P NO1
390
A4
SPK_N NO2
C1
RCV_P
NC1
LD200
R221
A1
1K RCV_N NC2
4
R223
5 Q200
7.5K
2SC5585
6
R225
R226
10K
20
L
H
Iss. Notice No. Date Name
- 100 -
8 9
2V5_VMIC
R200
1K
R205 C202 C203
10u
39p
2.2K
R209 R208
100 0
C208
39p
C218
R212
0.1u
100
R215 C211 C210
39p 39p
2.2K
CLOSE TO MIC
C2
IN1 SPK_RCV_SEL
A2
IN2
C3
SPK_RCV_P
COM1
A3
COM2 SPK_RCV_N
C219
1u
SPK_RCV_SEL
RECEIVER
SPEAKER
Section Date Sign & Name
MODEL
C3400
Park bae sun
Designer
05/01/17
Checked Kim kil su
05/01/17
DRAWING
AUDIO / PreCharge
NAME
Approved
05/01/17 Song yoon seok
DRAWING
LG Electronics Inc.
NO.
10
A
A
MIC200
1
2
SOB-413S44-RC3310
B B
C
D
Sheet/Sheets
2/7
Ver 1.1
LG Electronics Inc.