LG KE520 Service Manual page 148

7. CIRCUIT DIAGRAM
LCD CONNECTOR
XF2B-3545-31A-P
DP_28
CN102
1
MLED 2
LED_CA1 3
LED_CA2 4
LED_CA3 5
6
7
LCD_ID 8
E_DATA(15) 9
E_DATA(14) 10
E_DATA(13) 11
E_DATA(12) 12
E_DATA(11) 13
E_DATA(10) 14
E_DATA(9) 15
E_DATA(8) 16
E_DATA(7) 17
E_DATA(6) 18
E_DATA(5) 19
E_DATA(4) 20
21
22
23
24
25
26
DIF_RD 27
28
29
30
DIF_VSYNC 31
IF2
32
IF1
DIF_IF 33
34
35
ESD9X5.0ST5G ESD9X5.0ST5G
C100 C101
INSTPAR INSTPAR
18p 0.1u
ZD104 ZD100
DISPLAY PART POWER
VBAT DP_28
U100 R1114D281D-TR-F
1 3
VDD VOUT
4 2
NC GND1
6 5
DP_PWON
CE GND2 C104
1u
R120
C105
1u
100K
C106
C107
C108
1u
1u 1u
VBAT
4 3
VIN VOUT_FL
13
C109 VOUT_BL
2.2u
9
GND
17
PGND
8
D1
R121 1.5K
16 7
FLASH_EN EN_FLSH D2
6
D3
R122 330 10 5
LCD_BL_EN EN_SET D4
U101
C110
R124
AAT2805IXN-4.5-T1
27p
R125
10K
10K
CHARGE PUMP
3LED(60mA) + FLASH(300mA)
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VBAT
DP_IO
E_DATA(3)
E_DATA(2)
E_DATA(1)
E_DATA(0)
DIF_WR
DIF_ADS
MAIN_CS
DIF_RESET
C102 C103
INSTPAR INSTPAR INSTPAR
18p 0.1u
ZD103 ZD102 ZD101
VREXTL
Q100 DP_IO
SI1305-E3
S
DP_IO_ON
G
D
FB100
FLASH_LED
MLED
FB101
LED_CA1
LED_CA2
LED_CA3
C111 C112 C113
1u 1u 27p
- 149 -
VBAT VREXTL
CN100
G1 G2
1 26
2 25
LCD_ID
3 24
E_DATA(15)
4 23
E_DATA(14)
5 22
E_DATA(13)
6 21
E_DATA(12)
7 20
E_DATA(11)
8 19
LCD_BL_EN E_DATA(10)
9 18
E_DATA(9)
10 17
FLASH_LED E_DATA(8)
11 16
E_DATA(7)
12 15
E_DATA(6)
13 14
LED_ABC E_DATA(5)
G3 G4
LED_ABC
KEYPAD
S_UP
R111
KBR(4)
150
S_MENU100
R112
KBR(5)
150
R113 150
KBC(0)
R116 150
KBC(1)
R117 150
KBC(2)
R118 150
KBC(3)
R119 150
KBC(4)
CN101
G1 G2
1 26
2 25
E_DATA(4) KBR(4)
3 24
E_DATA(3) KBR(5)
4 23
E_DATA(2) KBC(0)
5 22
E_DATA(1) KBC(1)
6 21
E_DATA(0) KBC(2)
7 20
KBC(3)
8 19
DIF_RD KBC(4)
9 18
DIF_WR DP_PWON
10 17
DIF_ADS FLASH_EN
11 16
MAIN_CS DIF_RESET
12 15
DIF_VSYNC DIF_IF
13 14
DP_IO_ON
G3 G4
S_DOWN S_OK S_LEFT S_RIGHT
S_MENU101 SEND CLR
KE520
LGE Internal Use Only