LG MG370 Service Manual page 81

7. CIRCUIT DIAGRAM
1 2
CONNECTOR
D(0:7)
A
INOUT_A6 INOUT_B6
6 8
INOUT_A5 INOUT_B5
5 9 30
INOUT_A4 INOUT_B4
4 10 29
INOUT_A3 INOUT_B3
3 11 28
INOUT_A2 INOUT_B2
27
2 12
INOUT_A1 INOUT_B1
1 13 26
FL200
25
ICVE31186E150R101FR
24
23
22
21
20
19
INOUT_A6 INOUT_B6
18
6 8
INOUT_A5 INOUT_B5
5 9 17
A(7)
INOUT_A4 INOUT_B4
16
4 10
_WR
INOUT_A3 INOUT_B3
3 11
_LCD_CS
INOUT_A2 INOUT_B2
2 12
LCD_RESET
INOUT_A1 INOUT_B1
1 13
FL201
C221
ICVE31186E150R101FR
1000p
MICROPHONE
VMIC
R217
1K
C227 C228 R219
39p
39p 10u 2.2K
C226
L205
C229 0.1u
MIC_P
1K
C230 C231
18p 39p
L206
C232 0.1u
MIC_N
1K
R221
2.2K
KEY_MATRIX
D
KEY_IN(0:4)
R227
200 201
680
R228
203 204
680
R229
206 207
680
R230
680 STAR 209
R231 680
KEY_OUT(0:4)
E
R232 680
R233 680
R235 680
R236 680
R237 680
1 2
LGIC(42)-A-5505-10:01
LGE Internal Use Only
3 4 5
CHARGE PUMP
2V85_VIO VBAT
VBAT
CN200
U200
1 C202 0.1u 5
IN
2
LCD_ID
3
MLED2
4
MLED1
5
MLED
6 8
MOTOR_P MLED CP
7
IND_LED_B
8
9 11
W_LED_EN EN_SET
10
IND_LED_R
11
12
13 4
SPK_RCV_P GND
14 R210 C217
SPK_RCV_N
15
100K 2.2u
CHARGING
2V85_VIO VCHG
R218
10K
R220
CHG_DT
1.8K
MIC200
1
_EOC
2
OB4-15L42-C33L
R222 R223 C233
C235
NA
100K 1 uF
39p
OK
202 LEFT MENU
205 UP SEL
208 RIGHT SEND
SHARP DOWN CLEAR
2V0_VRTC
END
R234
PWRON
1K
C242
100p
3 4 5
6 7
C200 0.1u
HS_MIC_N
AAT3157ITP-T1
10 C204 0.1u
C1+ HS_MIC_P
C203
1u C206
9
C1-
7 39p
C2+
C205
1u
6
C2-
HS_MMI_L
1
D1 MLED1 HS_MMI_R
2
D2 MLED2 TXD
3
D3 RXD
12
NC HS_DETECT
RPWRON
DSR
TXD
RXD
VBAT
U201 ISL6294
1 8
VIN BAT
2 7
_PPR IREF
3 6
_CHG IMIN
4 5
_EN GND
9
PGND
R224 R225 C234
0.1u
240K 30K
VIBRATOR
BATTERY CONNECTOR
VBAT
R226
MOTOR_P Q2_C Q2_E
3 4
20
Q2_B
5
Q1_B
VIBRATOR_EN C236
2
27p
Q1_E Q1_C
C241 1 6
Q200
0.1u
- 80 -
8 9
VMIC
2V85_VIO
R200
L200 100nH
1.5K
R201
R294 47
2.2K
HSEJ-18S04-25R
C212
39p
L201 100nH
L202 100nH
R299 0
C213 22u R205 4.7
R298 0
C215 22u R206 4.7
R207 47
R208 47
R209 47
R211 1K
R212 47
R213 NA
R214 NA
FM_ANT
VBAT
3
BATT_TEMP
2
1
CN202
C237 C238 C239 C240
0.1u
27p 4.7u 27p
LG Electronics Inc.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
10
A
21
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
B
17
18
20
22
CN201
C
D