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7. CIRCUIT DIAGRAM
1
2
2V5_JACK
A
R201
2.2K
C203
0.1u
R205
20K
HEADSET_MIC_N
C205
C206
C204
R206
NA
33u
20K
39p
(1608)
C212
10u
HEADSET_SPK_OUT_P
HEADSET_MIC_P
JACK_DETECT
(1608)
C215
10u
HEADSET_SPK_OUT_N
RADIO_ANT
B
2V8_VEXT
C
U203
ML2871HB
F2
C2
IOVDD
ROUT
A2
LOUT
C221
D4
B1
0.1u
DATA15
D7
DVDD
D5
DATA14
D6
D6
B2
DATA13
D5
DGND
E6
DATA12
D4
E5
E1
DATA11
D3
P0_PWMA
F6
C6
DATA10
D2
P5_VIB
F5
DATA09
D1
E4
B3
C224
DATA08
D0
AOUT
A3
MIXIN
E3
ADD00
ILE
F3
B4
_MIDI_CS
CS
MIXOUT
E2
_RD
RD
C228
F4
A1
_WR
WR
VREF
D1
_MIDI_RESET
RESET
A6
SPOUT+
B6
SPOUT-
D
D3
IFSEL
A4
SPVDD
R237
0
F1
13MHZ
CLOCK
B5
SPGND1
D2
C3
_MIDI_IRQ
IRQ
SPGND2
C4
SPGND3
C1
C5
VREGC
SPGND4
E
1
2
LGIC(42)-A-5505-10:01
3
4
2V8_VEXT
2V8_VEXT
HEADSET JACK
C200
R202
39p
1M
U201 LMV7291MGX
R204
5
VIN-
4
VCC
1
3.3K
HOOK_DETECT
VIN+
3
OUT
GND
2
R209
220K
L200
2.2uH
R211
4.7
R212
2.2uH
R213
0
L201
2.2uH
R215
4.7
VA202
VA203
VA204
C216
C217
R216
C218
39p
39p
1M
39p
C219
10p
CLOSE TO HEADSET JACK
Q200
IMX9T110
R217
1.5K
R218
100K
2V8_VEXT
R219
R220
10
10
C222
0.1u
MIDI_VIBRATOR
R224
0.022u
20K
C225
0.022u
R227
10K
R229
39K
R230
1u
C226
0.022u
C229
0.015u
VBAT
R235
4.7K
C230
NA
C231
0.015u
R238
R239
4.7K
U206
LM4890LD
C232
5 IN-
10u
4
IN+
C233
C234
1
SHUTDOWN
47p
47p
AMP_EN
2 BYPASS
7 NC1
9
NC2
C236
1u
3
4
5
6
2V8_VEXT
2V5_JACK
U200 NCP563Q25T1
1
4
GND
NC
2
3
Vin
VOUT
C207
C208
10u
10u
J200
L202
270nH
1608
4.7uH
MIDI_KEY_BL1
MIDI_KEY_BL2
R221
R222
10
10
2V8_VEXT
C223
U204
0.1u
NLAST4599DFT2
R226
0
NO
6
RADIO_SPK_R
5 COM
R228
NA
NC 4
REC_P
NA
REC_P
VBAT
RADIO_SPK_R
SPK_RADIO_SEL
RADIO/SPEAKER PHONE SEL
RADIO_SEL
51K
HEADSET_SPK_P
SPK_RADIO_SEL
OUTPUT
VO1 6
SPK_N
LOW
SPEAKER PHONE
VO2 10
SPK_P
HIGH
RADIO PHONE
VDD 8
C235
10u
3
GND1
GND2 11
Iss.
Notice No.
Date
Name
5
- 102 -
7
8
9
2V5_VMIC
R200
1K
C201
C202
R203
10u
39p
2.2K
R207
R208
MIC_P
100
0
C210
39p
C211
R210
MIC_N
100
0.1u
C213
R214
39p
2.2K
CLOSE TO MIC
VBAT
AVLC14S02050
C299
U202
C220
NLAS4684MR2
CN200
10u
1
1
10
V+
NO2
SPK_N
2
2
9
SPK_P
NO1
COM2
AVLC14S02050
C298
3
8
COM1
IN2
4
7
SPK_SEL
IN1
NC2
REC_N
5
6
REC_P
NC1
GND
2V8_VEXT
HEADSET_SPK_OUT_P
U205
C227
NLAS4684MR2
10u
RADIO_SPK_L
1
10
V+
NO2
2
9
HEADSET_SPK_OUT_N
NO1
COM2
R232
3
8
R234
COM1
IN2
NA
NA
4
7
HEADSET_SPK_N
IN1
NC2
5
6
NC1
GND
Section
Date
Sign & Name
MODEL
2005
Designer
KIM H.J.
03.20
2005
Checked
LEE S.Y.
DRAWING
03.20
NAME
2005
Approved
KIM B.Y.
03.20
DRAWING
LG Electronics Inc.
NO.
10
A
A
MIC200
C209
1
39p
2
OB4-15L42-C33L
C214
39p
VA200
VA201
B
B
AVL5M02-200
AVL5M02-200
RECEIVER/SPEAKER SELECTION
SPK_SEL
OUTPUT
C
LOW
RECEIVER
HIGH
SPEAKER
HEADSET OUTPUT SELECTION
RADIO_SEL
OUTPUT
LOW
HEADSET_SPK
D
HIGH
RADIO
Sheet/Sheets
B2070
2/5
AUDIO/MIDI
Ver.1.1
LG Electronics Inc.
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