LG -P940 Service Manual page 121

DSI2_LCD_MIPI_D0_N
P1
1
DSI2_LCD_MIPI_D0_P
P2
2
FL901
DSI2_LCD_MIPI_CLK_N
P1
1
DSI2_LCD_MIPI_CLK_P
P2
2
FL902
DSI2_LCD_MIPI_D1_N
P1
1
DSI2_LCD_MIPI_D1_P
P2
2
FL903
LCD BACKLIGHT LED Boost
VSEL_1.8V
I2C2_SCL
I2C2_SDA
LCD_CP_EN
P/D_REV_C
LGE Internal Use Only
P3
3
P4
4
P3
3
P4
4
P3
3
P4
4
LED_C
LED_A
VBAT
C902
10u
1.5K 1.5K
R901 R902
R904
LCD_PWM
Change LM3530UMX--> LM3530TMX-40 (Rev_B --> Rev_C)
TP3
CN901
1 24
2 23
3 22
4 21
5 20
6 19
7 18
8 17
9 16
R906
10
10 15
11 14
12 13
VA901 VA902
Changed by REV_C
L901 10u
D901
C3 D2
IN OVP
A2
U902
SCL
A1
SDA
C2
HWEN
B2
N/A_1
B1 D3
0
PWM ILED
D1 C1
N/A_3 N/A_2
Rev.C: B2, D1, C1 changed to GND
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4. TROUBLE SHOOTING
VCC_LCD_2V8
VCC_LCD_2V8
IOVCC_LCD_1V8
TP2
C906 C907
2.2u 2.2u
LCD_RESET_N
TP1
LCD_MAKER_ID
LCD_VSYNC
LCD_PWM
VA903
TP4
C903
1u
Only for training and service purposes
C908
2.2u
LED_A
LED_C