LG KM500 Service Manual page 117

7. CIRCUIT DIAGRAM
1 2
ZIP CONN (0.85t)
DP_28
CN002
1
MLED 2
LED_CA1 3
A
LED_CA2 4
LED_CA3 5
LED_CA4 6
R000 100K
7
8
R002 100K
9
MLCD_VSYNC 10
TP000
MLCD_RD 11
TP001
MLCD_WR 12
TP002
MLCD_RS
13
TP003 R035 100ohm
MLCD_RESET 14
TP004
MLCD_CS 15
16
ESD9X5.0ST5G
17
INSTPAR
18
VA000
19
20
21
22
23
24
25
26
B
27
28
29
30
31
32
LCD_ID 33
34
35
C002 C003
18p 1u
DISPLAY PART POWER
C
VBAT DP_28
U001 R1114D281D-TR-F
1 3
VDD VOUT
4 2
NC GND1
6 5
DP_PWON CE GND2 C006
1u
R021
C007
1u
100K
CHARGE PUMP
D
3LED(60mA) + FLASH(300mA)
VBAT C008
C009 C010
1u 1u 1u
4 3
VIN VOUT_FL
C011 13
VOUT_BL
2.2u
9
GND
17
PGND
8
D1
R031 1.5K
16 7
FLASH_EN EN_FLSH D2
6
D3
R032 330
10 5
E
LCD_BL_EN EN_SET D4
U003
R034
AAT2805IXN-4.5-T1
100K
1 2
LGE Internal Use Only
3 4 5
IF3 = H
IF2 = L
IF1 = H
MLCD_DATA(0)
MLCD_DATA(1)
R001 100K
MLCD_DATA(2)
MLCD_DATA(3)
MLCD_DATA(4)
MLCD_DATA(5)
MLCD_DATA(6)
MLCD_DATA(7)
TP005
MLCD_DATA(15)
MLCD_DATA(14)
MLCD_DATA(13)
MLCD_DATA(12)
MLCD_DATA(11)
MLCD_DATA(10)
MLCD_DATA(9)
MLCD_DATA(8)
MLCD_DATA(7)
MLCD_DATA(6)
MLCD_DATA(5)
MLCD_DATA(4)
MLCD_DATA(3)
MLCD_DATA(2)
MLCD_DATA(1) FADEIN_LED
MLCD_DATA(0)
VBAT
FB001
FLASH_LED
FB002
MLED
LED_CA1
LED_CA2
LED_CA3
LED_CA4
C012 C013 C014 C015
27p 1u 1u 27p
3 4 5
6 7
VBAT
CN001
G1 G2
1 26
FADEIN_BL_EN
2 25
3 24
4 23
LCD_ID
5 22
6 21
MLCD_DATA(15) MLCD_RESET
7 20
MLCD_DATA(14)
8 19
MLCD_DATA(13)
9 18
MLCD_DATA(12)
10 17
MLCD_DATA(11)
11 16
MLCD_DATA(10) MLCD_VSYNC
12 15
MLCD_DATA(9)
13 14
MLCD_DATA(8)
G3 G4
LIGHTING
R003 R004 R005 R006
75 75 300 300
FADEIN_LED
FB000
FADEIN_BL_EN
R008 330
LD000 LD001
FADE_CA1
FADE_CA3
VA002
FADE_CA1
FADE_CA2
FADE_CA2
FADE_CA3
SLIDE KEY
R015
KBR(3)
680
R022
KBR(4)
680
SSC-FR104-II1
R024
KBR(5)
680
LED_A
R026 680
KBC(0)
R027 680
KBC(1)
R028 680
KBC(2)
R029 680
KBC(3)
R030 680
KBC(4)
- 118 -
8 9 10
CN000
G1 G2
1 26
FLASH_EN KBR(3)
2 25
KBR(4)
3 24
LED_A KBR(5)
4 23
LCD_BL_EN
5 22
DP_PWON KBC(0)
6 21
KBC(1)
7 20
KBC(2)
8 19
MLCD_CS KBC(3)
9 18
MLCD_RS KBC(4)
10 17
MLCD_WR
11 16
MLCD_RD
12 15
13 14
FLASH_LED
G3 G4
VBAT
U000
LTC3210EUD_3TRPBF
1
C1P
12
GND
2 11
CPO CLED
3 10
ENM ENC
4 9
MLED1 RC
VA001
C005
2.2u
BGM
S_UP S_DOWN S_OK S_LEFT S_RIGHT
S_MENU_LEFT S_MENU_RIGHT REW PLAY FF
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Only for training and service purposes
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