LG -P768 Service Manual page 152

LCD Power
VBAT
U901 LD6805K/18P
4 1
IOVCC_LCD_1V8
IN OUT
3 2
LCD_EN EN GND
C901
1u
R903
C902
100K
EAN62335301
1u
VBAT
U903 LD6805K/28P
4 1
VCC_LCD_2V8
IN OUT
3 2
LCD_EN EN GND
C908
C903
1u
1u
EAN62394801
PWR ON KEY
PWR_ON_SW
VOLUME KEY
CN905
1
2
3
4
LGE Internal Use Only
4.7" LCD BACKLIGHT LED BOOST
VBAT
1239AS-H-100N=P2
C907
10V
10u
VSEL_1.8V
D2
ALS
B2
I2C2_SDA
SDA
B1
I2C2_SCL SCL
D3
LCD_CP_EN HWEN
C2
INT
C3
LCD_PWM PWM
B4
GND
CN902
1
2
R907 1K
Vol. Down
R920 100
KEY_R[1]
R919 100
KEY_C[0]
R918 100
KEY_R[0]
Vol. Up
KEY_C[0] - KEY_R[0] : Vol. Up
KEY_C[0] - KEY_R[1] : Vol. Down
C15000, C15001 Delete
L900
ZD906
LED_A
10u
SDS511Q
TOKO
EDSY0018601 C906
1u
50V
B3
OVP
A2
C+
A1
C-
C1
HVLED1 LED_C1
D1
HVLED2 LED_C2
U902
LM3533TMX-40 A3
CPOUT
EAN62410501
E1
LVLED1
E2
LVLED2
E3
LVLED3
E4
LVLED4
D4
LVLED5
Lower_Ant FPCB Connector
(1T, 30 Pin)
1
2
3
4
5
6
USB_VBUS_CON
7
8
9
USB_DP
10
USB_DM
11
12
USB_ID
13
MICBIAS
14
15
VBAT
KEY_C[1] - KEY_R[2] : HOME Key
- 152 -
4.7qHD LCD CONNECTOR(MIPI)
LED 10EA/2WAY,20mA/EA
30 => 24 PIN, PIN MAP Change. +V3P0_L8_LCD delete
1
GND
revA -> revB : Added
2
VCC_LCD_2V8
3
C905 C909
1u 100n
4
5
SFEY0015901
6
DSI2_LCD_MIPI_D0_N P8 P4
7
8 4
DSI2_LCD_MIPI_D0_P
P7 P3
7 3
DSI2_LCD_MIPI_CLK_N
P6 P2 8
6 2
DSI2_LCD_MIPI_CLK_P P5 P1
5 1
9
FL901
10
SFEY0016301 11
12
DSI2_LCD_MIPI_D1_N
P3 P1
3 1
DSI2_LCD_MIPI_D1_P
P4 P2
GB042-24S-H10-E3000
4 2
ENBY0034201
FL902
ENBY0040701
CN903 GB042-30S-H10-E3000
30
29
VIB_L_P
28
VIB_L_N
27
26
MMIC_P
25
AMIC_GND
24
23
AUD_SPK_N
22 AUD_SPK_P
21 P760_RevD/P768_RevB : Delete R915
20 revA(R[1]) -> revB(R[2]) : for home key KEY_R[2]
19
KEY_C[1]
18
revA(R[0]) -> revB(GND) : delete quick key
17
16 3
1 R911
FRONT_KEY_LED_EN/
Q902
4.7K
2
LSCR523EBFS8
EBK61572201
HIGH : ON
LOW : OFF
Copyright © 2012 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
CN900
24
RevB(GND) -> RevC : Change foe ESD
23
LCD_VSYNC
22
IOVCC_LCD_1V8
21
LCD_PWM
20
19
LCD_RESET_N
18
17
LCD_MAKER_ID
16
LED_A
15
LED_C1
14
LED_C2
13
ZD904 ZD905 ZD903
C904 C910
1u 100n
revA -> revB : Added
ICVL0518400V500FR
Only for training and service purposes