LG KF700 Service Manual page 149

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
KEY PCB
B B
VREG_MSMP_2.7V PM_ON_SW_N
C100
0.1u
100 101
KEY_ROW(0)
C C
100ohm R101
1 2 3
103 104
KEY_ROW(1)
100ohm R102
4 5 6
106 107
KEY_ROW(2)
100ohm R103 7 8 9
HOT100 109
100ohm R104
KEY_ROW(3)
KEY_COL(0) HOT4 0 HOT3
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
100ohm R105
KEY_COL(4)
D D
KEY MAP
E E
+VPWR
VREG_MSMP_2.7V
CN100
G1
1 20
2 19
FOLDER_DETECT_N
3 18
KEY_ROW(3) KEY_COL(0)
F F 4 17
KEY_ROW(2) KEY_COL(1)
5 16
KEY_ROW(1) KEY_COL(2)
6 15
KEY_ROW(0) KEY_COL(3)
7 14
KEY_COL(4) KYPD_LED_EN
8 13
MIC1P PM_ON_SW_N
9 12
MIC1N
10 11
MICBIAS
G2
KEY PCB TO MAIN PCB
G G
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5
END
+VPWR
PRSB6.8C
KYPD_LED_EN
102 SND
105 CLR
108 COM
KEY BACK LIGHT LED (SIDE VIEW)
CAMERA
CAMERA
HOT101
FOCUS
SPM0204LE5-QB
G4
6
PWR
5
G3
4
G2
3
G1
2
OUT
1
MIC100
R106
0
U100
A3212EELLT-T
VREG_MSMP_2.7V
VDD
G1
OUT G2
FOLDER_DETECT_N
C108
UART_RX 0.1u
UART_TX
FOLDER DETECT
4 4 5 5
6 6 7 7 8 8
LD100
LD101
MICBIAS
C102 C103
10u 47p
C104 0.1u
MIC1N
C105 0.1u
MIC1P
MIC
PM_ON_SW_N TP100
UART_RX TP101
UART_TX TP102
TP PAD
6 6 7 7 8 8
- 150 -
9 9 10 10 11 11
SW100
20279-001E-01
ANT100 ANT101
G1 R100
G2 ANT
3.3nH
33nH L100
C101
L101 1.2nH
0.5p
9 9 10 10 11 11
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
12 12
C C
D D
E E
F F
G G
H H
12 12