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7. CIRCUIT DIAGRAM
1
2
VBAT
R300
END
10K
SW304
A
POWERKEY
R301
680
R320
680
KEY_ROW0
R324
680
KEY_ROW1
R326
680
B
KEY_ROW2
R331
680
KEY_ROW3
R336
680
KEY_ROW4
C
R339
680
KEY_COL0
R341
680
KEY_COL1
R342
680
KEY_COL2
R343
680
KEY_COL3
R344
680
KEY_COL4
VBAT
D
R359
12K
KEY_BACKLIGHT
E
1
2
LGIC(42)-A-5505-10:01
3
4
5
VOL_UP
VOL_DOWN
SW300
T
R302
R303
CLR
FAV
100
100
SW305
SW306
1
2
3
SW307
SW308
SW309
SW310
LEFT
VA306
EVL14K02200
SW312
SW313
SW314
SW315
4
5
6
UP
VA307
EVL14K02200
SW317
SW318
SW319
SW320
7
8
9
RIGHT
SW322
*
SW323
0
SW324
#
SW325
DOWN
VBAT
KEY BACKLIGHT
Q300
IMX9T110
3
4
5
6
7
8
Trace32
PIN
DAI
Pin 1
JTAGEN
2V8_VEXT
Pin 2
_RESET
TMS
Pin 7
Pin 9
TCK
Pin 11
TDI
Pin 18
TDO_1
Pin 24
2V8
SW311
MENU
(GPIO_32)
DSR
RPWRON
USC0
SW316
SEL
R327
CAM_INT
(USC6)
R328
USC1
R329
USC2
R330
SW321
USC3
SEND
R332
SW326
DEBUG_TX
CONF
R333
USC5
R334
USC4
R335
DEBUG_RX
BATT_TEMP
C301
1u
Section
Date
Designer
Checked
Approved
LG Electronics Inc.
6
7
- 89 -
9
10
I/O CONNECTOR
PIN
DAI
UART
USC0
CLOCK
-
USC1
RX
RXD
TX
TXD
USC2
CN300
-
RTS/CTS(PC)
USC4
ENRY0005301
-
CTS/RTS(PC)
USC5
29
25
USC6
RESET
-
1
2
R322
47
3
4
5
R323
47
6
7
R325
47
8
9
10
11
12
13
NA
14
47
15
47
16
47
17
18
19
20
21
22
23
47
24
47
47
26 27
47
28
R337
100K
CHG_DET
(GPIO_13)
C302
C303
1u
1u
Sign & Name
Sheet/Sheets
MODEL
BUTTERFLY(KG225)
3/6
DRAWING
MMI,I/O
NAME
DRAWING
VER-1.1
NO.
LG Electronics Inc.
A
A
C
D
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