Audio Part - LG G3100 Service Manual

8.2 Audio Part

1 2
R201 0
1
11
13MHz CLK1 HPOUT_R
4
10
_MIDI_RST _RST
2V8_VMEM 30 HPOUT_L
ADD0 A0
31 12
EQ1
_RD _RD
29
_MIDI_CS _CS
5
13
EQ2
NC
A
R244 NC
28
_WR _WR
3
_MIDI_IRQ _IRQ
R244 R212
27 14
EQ3
DATA8 D0
26
16POLY 10K 10K
DATA9 D1 LED
25
DATA10 D2 MTR
40POLY NC 0
24
DATA11 D3
U207
23
DATA12 D4
YMU762
22
DATA13 D5
SPOUT1
21
DATA14 D6
20
DATA15 D7
C212
2V8_VMEM R210 3.3K
PLLC SPOUT2
6
1000p
C214 0.1u
VREF
9
R214 R212 SPVDD
15
0
IOVDD
32
0
R215
VDD
7
C218 0
16
0.1u VSS SPVSS
8
B
VBAT 3V3_VMIDI
U202 LP3981ILD-3.3
1 6
VOUT VEN VMIDI_CTL
2 5
VIN BYPASS
C220
3 4
2.2u VOUT_SE GND1
C221
HFK_EAR
(2012)
GND2 0.1u
C222
0
4.7u
1
C
3V0_VLCD
R220
2.2K
3V0_VLCD
C225
R221
C224 10u
3.3K
NC (2012) R222
1M
HEADSET_MIC_P
3V0_VLCD
U205
C232
MAX4695EGC
0.1u
D
10 N_C1 6 R235
N_C2
0
AUXIP GOM1 GOM2
11 5
IN1 IN2
12 4
HFK_AUXIN
HFK_AUXIP
HFK_EAR
HFK_EAR CONNECTION
0 HEADSET
1 HFK
(2012)
R240
C234 10u 4.7
HEADSET_SPK_P
JACK_DETECT
E
HEADSET_MIC_P
L201
100nH
C235 C236 C237
47p 47p 47p
1 2
LGIC(42)-A-5505-10:01
3 4 5
C201
R203
0.01u
VOUTNORP
33K
VOUTNORN
R205
82K
C205
390p
2
19
CN201
17
R207 0 SPK+ 1
R209 0 2
SPK-
18
Speaker
3V3_VMIDI
C215 C216
47p 47p
C217
0.1u
3V0_VLCD
U203 MAX4624EUT-T
1 6
HFK_EAR IN NO HFK_AUXOP
2 5
VCC COM AUXOP
3 4
GND NC HEADSET_SPK_P
3V0_VLCD
CONNECTION
U204 MAX4624EUT-T
HEADSET
1 6
HFK
HFK_EAR IN NO HFK_AUXON
2 5
VCC COM AUXON
3 4
GND NC
C223
0.1u
VBAT
3V0_VLCD
U206 MAX9075EXK-T
5
VIN-
4
C227 C228 C229 C230 C231 C238
VCC 1
27p 27p 27p 27p 27p 27p
HOOK_DETECT
VIN+ 3 OUT
GND
2
LD201
R233
510K
Q202 IMX9T110
R234
1
C233
0.1u
1.5K
2
R236
AUXIN
100K
3
R237
2.2K
J201
Headset jack
5
1
3
4
2
R241
1M
3 4 5
6 7
R256
CN202
1
0
C203
39p
2
R257
0
C206 C207
39p 39p
CLOSE TO RECEIVER
VIBRATOR
VBAT
C219
0.1u
R217
15
3
R218
2
VIBRATOR Q201
1.5K
2SC5585
R219
1
100K
KEY BACKLIGHT
VBAT
0.1u
U201
MAX4599EXT-T
LD202 LD203 LD204 LD205 LD206
NO 6
5 COM
NC 4
6
5
4
R250
RPWRON
0
R251
ONNOFF
R238 R239 SP207
NC
15 NA
Section
Designer
Checked
Approved
Iss. Notice No. Date Name
- 116 -
8 9
2V45_VAN
R202
1K
C202 C204
10u 10u
R204
(2012) (2012)
2.2K
C208 0.1u
R206
VINNORP
C209
100 L202 100nH
C210
39p
39p
C211 0.1u
R208
VINNORN
L203 100nH
100 C213
R211 39p
2.2K
3
R213
Q203
2
MIC_ONOFF
2SC5585
1.5K
1
CLOSE TO MIC
CN203
1
2
C242
LCD BACKLIGHT
R252 0
KEY_BACKLIGHT
R254 10K
VCHARGE
C243
0.1u
Date Sign & Name
MODEL
G3100
07/28
2003
DRAWING
NAME
DRAWING
LG Electronics Inc.
SPFY0060901_1.1
NO.
10
A
MIC201
1
2
OBG-15S40-C2
B
C
D
Sheet/
Sheets
2/4
BB
LG Electronics Inc.