LG KC780 Service Manual page 118

8. CIRCUIT DIAGRAM
1 2
A
SPK_EAR_P
B
SPK_EAR_N
C
D
E
F
G
H
1 2
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 4 5
SPK / RECEIVER
CN100
L100
1
100nH
C100
2
27p L101
100nH
C101 C102
VA100 VA101
47p 47p
ICVL0505101V150FR ICVL0505101V150FR
BACKUP BATTERY
2V 0.5mAh
VRTC_2V0
C106
1u
3 4 5
6 7 8
B to B Connector(MAIN TO SLIDE), HEADER, 1T, AXT654124
VBAT VRTC_2V0
VIO_2V62
CN101
G1 G2
1 54
2 53
3 52
4 51
KP_IN(5)
5 50
KP_IN(6)
6 49
KP_OUT(0)
7 48
KP_OUT(1)
8 47
KP_OUT(2)
9 46
KP_OUT(3)
10 45
KP_OUT(4)
11 44
DIF_CD
12 43
DIF_CS
13 42
DIF_WR
14 41
DIF_RD
15 40
DIF_VSYNC
16 39
DIF_RESET
17 38
BL_RESETB
18 37
I2C_SDA
19 36
I2C_SCL
20 35
FLASHCNT
21 34
DTX0
22 33
DTX1
23 32
DTX3
24 31
25 30
26 29
27 28
G3 G4
B to B Connector(SLIDE TO KEYPCB), HEADER, 1T, AXK8L54125BG
VBAT
VIO_2V62
CN102
G1 G2
1 54
2 53
3 52
4 51
KP_IN(5)
5 50
KP_IN(6)
6 49
KP_OUT(0)
7 48
KP_OUT(1)
8 47
KP_OUT(2)
9 46
KP_OUT(3)
10 45
KP_OUT(4)
11 44
DIF_CD
12 43
DIF_CS
13 42
DIF_WR
14 41
DIF_RD
15 40
DIF_VSYNC
16 39
DIF_RESET
17 38
BL_RESETB
18 37
I2C_SDA
19 36
I2C_SCL
20 35
FLASHCNT
21 34
DTX0
22 33
DTX1
23 32
DTX3
24 31
25 30
26 29
27 28
G3 G4
6 7 8
- 119 -
9 10 11 12
UPPER_KEY_BL
DIF_D(0)
DIF_D(1)
DIF_D(2)
DIF_D(3)
DIF_D(4)
DIF_D(5)
DIF_D(6)
DIF_D(7)
DIF_D(8)
DIF_D(9)
DIF_D(10)
DIF_D(11)
DIF_D(12)
DIF_D(13)
DIF_D(14)
DIF_D(15)
LCD_ID
END_KEY
SPK_EAR_N
SPK_EAR_P
UPPER_KEY_BL
DIF_D(0)
DIF_D(1)
DIF_D(2)
DIF_D(3)
DIF_D(4)
DIF_D(5)
DIF_D(6)
DIF_D(7)
DIF_D(8)
DIF_D(9)
DIF_D(10)
DIF_D(11)
DIF_D(12)
DIF_D(13)
DIF_D(14)
DIF_D(15)
LCD_ID
END_KEY
9 10 11 12
LGMC
A
B
C
D
E
F
G
H
LGE Internal Use Only