Display - LG -V909DW Service Manual

3.13 Display

LCD module is connected to Main PCB with 30-pin B to B connector.
The LCD has LVDS interface.
Between T20 and LCD there is LVDS transmitter for LVDS interface
RGB to LVDS for 8.9"
J2
D0
LCD_RED0
K1
LCD_RED1 D1
K2
LCD_RED2 D2
J3
D3
LCD_RED3
K3
D4
LCD_RED4
J4
D6
LCD_RED5
J1
LCD_RED6 D27
K4
D5
LCD_RED7
K5
D7
LCD_GREEN0
K6
D8
LCD_GREEN1
J6
LCD_GREEN2 D9
G5
LCD_GREEN3 D12
G6
D13
LCD_GREEN4
F6
D14
LCD_GREEN5
H4
LCD_GREEN6 D10
H6
LCD_GREEN7 D11
E5
D15
LCD_BLUE0
D5
D18
LCD_BLUE1
C6
LCD_BLUE2 D19
B6
LCD_BLUE3 D20
B5
D21
LCD_BLUE4
A6
D22
LCD_BLUE5
E6
LCD_BLUE6 D16
D6
LCD_BLUE7 D17
A4
D24
RGB_HSYNC
B4
D25
RGB_VSYNC
A3
LCD_DATA_EN D26
A5
D23
A2
CLKIN
RGB_DOTCLK
VDD_3V3
R702 10K
R704 10K
C702
0.1u
Figure. Schematic of LCD connector and LVDS transmitter
LGE Internal Use Only
Figure. LCD Block Diagram
H1
Y0M TXOUT_0N
H2
Y0P
TXOUT_0P
G1
Y1M
TXOUT_1N
G2
Y1P TXOUT_1P
E1
Y2M
TXOUT_2N
M700
E2
Y2P
TXOUT_2P
C1
Y3M TXOUT_3N
C2
Y3P
TXOUT_3P
D1
CLKM TXCLK_N
D2
CLKP TXCLK_P
VDD_3V3
C700 C701
0.1u 10n
LVDS_PWRDN_N
8.9" LCD
1
TXOUT_3P
2
TXOUT_3N
3
4
TXCLK_P
5
TXCLK_N
6
7
TXOUT_2P
8
TXOUT_2N
9
10
TXOUT_1P
11
TXOUT_1N
12
13
TXOUT_0P
14
TXOUT_0N
15
- 50 - Copyright © 2011 LG Electronics. Inc. All right reserved.
3. TECHNICAL BRIEF
VDD_3V3
CN700
30
29
28
27
VDD_WLED
26
25
24
23
22
21
20
19
18
17
16
Only for training and service purposes
WLED1
WLED2
WLED3
WLED4