LG KF350 Service Manual page 119

7. CIRCUIT DIAGRAM
1 2 3
A
KEYPAD
KEY_ROW0
KEY_ROW1
B
KEY_ROW2
KEY_ROW3
KEY_ROW4
C
KEY_ROW5
KEY_COL0
KEY_COL1
KEY_COL2
KEY_COL3
KEY_COL5
D
KEY TO MAIN CONNECTOR
E
2V62_VIO VCHG
F
FM_ANT
HOOK_DETECT
JACK_TYPE
HSO_L
HSO_R
USB_DP
USB_DM
JACK_DETECT
RPWRON_EN
DSR
UART_TX
UART_RX
FLIP
KEY_BACKLIGHT
G
H
1 2 3
LGE Internal Use Only
4 5
CLR FAV
CAMERA
CLR FAV CAMERA
1 2 3 LEFT
SW100 SW101 SW102 LEFT MENU MENU
SW103 SW104 SW105 UP SEL
4 5 6
UP
SEL
SW106 SW107 SW108 RIGHT SEND
7 8 9
RIGHT
SEND
* * SW109 0 SHARP # DOWN CONF
DOWN
CONF
VOL_UP VOL_DOWN
VOL_UP VOL_DOWN
SIDE KEY_VOL
VBAT VUSB_USB
CN101
1 44
2 43
MAIN_MIC_P
3 42
MAIN_MIC_N
4 41
5 40
VMIC_P
6 39
MAIN_MIC_N
7 38
END_KEY
8 37
KEY_ROW0
9 36
KEY_ROW1
10 35
KEY_ROW2
11 34
KEY_ROW3
12 33
KEY_ROW4
13 32
KEY_ROW5
14 31
KEY_COL0
15 30
KEY_COL1
16 29
KEY_COL2
17 28
KEY_COL3
18 27
KEY_COL5
19 26
20 25
21 24
22 23
GB042-44S-H10-E3000
4 5
6 7 8 9
END KEY
END
VBAT
ON/END
END_KEY
MIC
MIC100
1
MAIN_MIC_P OUT
2
MAIN_MIC_N
G1
3
G2
4
G3
5
VMIC_P PWR
6
MAIN_MIC_N G4
SPM0204LE5-QB
HOOK_DETECT
JACK_TYPE
JACK_DETECT
RPWRON_EN
FLIP SWITCH
UART_RX
2V62_VIO
BU52031NVX U100
4 1
VDD OUT FLIP
3 2
NC GND
C110
C111
VA104
0.1u
0.1u
varistor
6 7 8
- 120 -
10 11
KEY BACKLIGHT
VBAT
R100
KEY_BACKLIGHT
LD100 47
LEWWS44-E
R101
LEWWS44-E LD101 47
18PIN MULTIPORT RECEPTACEL
FM_ANT
VUSB_USB VCHG VBAT
C103
L103
CN100 10p
270nH
21
19
1
2
3
2 : Headset MIC
4
HSO_L
5 3 : Jack type
HSO_R 4 : CTS/HSO_L
6
USB_DP 5 : RTS/HSO_R
7
USB_DM 6 : USB+/Remote_INT/TXD
8
9 7 : USB-/Remote_ADC/RXD
8 : JACK_D
10
RPWR 11 9,10 : BATT
12
11 : R/ON
13
DSR 14
12,13 : CHG
DSR
15
14 : DSR
UART_TX 16
UART_TX
15 : VUSB
UART_RX 17
16 : D/ TX
18
17 : D/ RX
20
22
GU041-18P-E1000
ANTENNA CONTACT
GND101 GND100 ANT100
C113
DNI
SW110
UFL-R-SMT10
L106
G1
ANT G2
1nH
L105
C113
15nH
0.5p
9 10 11
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
12
A
B
C
D
E
F
G
H
12