LG 42LH90 Manual page 78

Main Board Connector P3500 to the T
Main Board Connector P3500 to the T
P3500 CONNECTOR "Main" to "T-CON" CN1
Pin Label
1 LVDS 12V 12V
2 LVDS 12V 12V
3 LVDS 12V 12V
4 LVDS 12V 12V
5 n/c n/c
6 Gnd Gnd
7 Gnd Gnd
8 Gnd Gnd
9 Gnd Gnd
10 Gnd Gnd
11 1.09V
LVDS_CH2_E+
12 LVDS_CH2_E- 1.44V
13 LVDS_CH2_D+ 1.09V
14 1.44V
LVDS_CH2_D-
15 Gnd Gnd
16 LVDS_CH2_CLK+ 1.22V
17 1.21V
LVDS_CH2_CLK-
18 Gnd Gnd
19 LVDS_CH2_C+ 1.13V
20 1.4V
LVDS_CH2_C-
Diode
Run Pin
Test
Open
21
Open 22
23
Open
24
Open
25
n/c
26
Gnd
27
Gnd
28
Gnd
29
Gnd
30
Gnd
31
1.23V
32
0.875V
33
1.23V
34
1.23V
35
Gnd
36
1.14V
37
1.25V
38
Gnd
39
1.23V
40
0.87V
- CON Voltage and Diode Check
- CON Voltage and Diode Check
Diode Mode values taken with all Connectors Removed
Label Run
LVDS_CH2_B+ 1.1V
LVDS_CH2_B- 1.4V
1.1V
LVDS_CH2_A+
LVDS_CH2_A- 1.4V
n/c n/c
Gnd Gnd
LVDS_CH1_E+ 1.1V
LVDS_CH1_E- 1.4V
1.1V
LVDS_CH1_D+
LVDS_CH1_D- 1.4V
Gnd Gnd
1.26V
LVDS_CH1_CLK+
LVDS_CH1_CLK- 1.25V
Gnd Gnd
1.4V
LVDS_CH1_C+
LVDS_CH1_C- 1.4V
LVDS_CH1_B+ 1.2V
LVDS_CH1_B- 1.3V
LVDS_CH1_A+ 1.2V
1.3V
LVDS_CH1_A-
78
Diode
Pin Label
Test
0.87V 41 Gnd
1.2V 42 OPC-EN
1.22V 43 OPC-Out
0.88V 44 *PWM-DIM
n/c 45 LVDS-Sel
Gnd 46 n/c
0.87V 47 n/c
1.23V 48 n/c
1.23V 49 n/c
1.23V 50 n/c
Gnd 51 Gnd
1.20V
PWM-DIM (Pin 44) is Open on
1.2V
the Main Board.
Gnd
0.88V
1.22V
1.11V
1.23V
1.18V
1.05V
February 2010 LCD DV
Diode
Run
Test
Gnd Gnd
n/c 1.09V
n/c Open
n/c Open
n/c Open
n/c Open
n/c Open
n/c Open
n/c Open
n/c Open
Gnd Gnd
1
P3500
42LH90