LG KG271 - Page 89

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DOWN
23
LG Electronics Inc.
DRAWING
E
7
KEY BACKLIGHT
5
11/16
4
2006
#
4
GB3_RADIO
10
MENU
IMSA-9671S-13Y902
SEND
1
REV-1.1
4
A
Notice No.
SII
(10V,K,X5R)
ID
MODEL
NO.
DRAWING
Date
5
Sheet/
1
UP
SEL
NAME
D
6
KEY MATRIX
MAKER
Iss.
LG Electronics Inc.
A
HIGH
(10V,K,X5R)
1
C
2
7
8
2
*
HYUN-OK.LEE
LEFT
B
SHARP
3
3
Sheets
Name
Approved
END
D
LOW
Sign & Name
9
LGIC(42)-A-5505-10:01
0
Designer
CHARGE PUMP
RIGHT
5
6
9
8
SW203
AUDIO,LCD,KEY
2/4
GP 150Kohm pull up
Voltage
1.9V
0V
0.9V
Date
Checked
(ENQY0013801)
Section
47R208
LD201
VBAT
LEBB-S14H
NA
C213
R204
680
27p
SW201
C210
47R206
LEBB-S14H
LD200
C209
27p
2V0_VRTC
SW216
1u
C215
C221
NA
2SC5585
Q200
C204
NA
C219
27p
LEBB-S14H
LD204
R212 680
SW205
SW212
SW217
SW215
C207
NA
SW210
SW214
27p
C211
1u
C223
NA
LD202
LEBB-S14H
C218
SW211
100ohm
R220
SW200
SW219
R215 680
LD203
LEBB-S14H
SW204
NA
R219
100ohm
NA
C216 C220
R205 47
100ohm
R218
R209
680
4
GND
IN
5
12
NC
NA
C214
AAT3157ITP-T1
10
C1+
C1-
9
C2+
7
C2-
6
8
CP
D1
1
2
D2
D3
3
11
EN_SET
R223
10K
U200
SW208SW207
47R207
R201
680
100ohm
R216
SW202
2V8_VIO
C200
1u
1KR222
R202
100K
14
15
1
10
11
12
13
2
3
4
5
6
7
8
9
C206
CN200
NA
R211 680
NA
SW209
SW213
C208
LD205
27p
LEBB-S14H
1u
C203
NA
C222
C205
680
R203
R214 680
MTPG
MTPD
1u
C201
R210
100K
C212
27p
R217
100ohm
R213 680
R221
100ohm
C202
27p
SW218
NA
C217
VBAT
SW206
MLED2
MLED1
SSC0_CLK
SSC0_MTSR
CS3
MLED
W_LED_DRV
KEY_OUT2
KEY_OUT3
KEY_OUT4
KEY_IN3
LCD_RESET
MLED1
MLED2
MLED
LCD_ID
END_KEY
KEY_BACKLIGHT
KEY_IN0
KEY_IN2
KEY_IN1
KEY_IN4
KEY_OUT1
7. CIRCUIT DIAGRAM