LG 42LV5500 Training Presentation page 76

CN1 T-CON Connector CN1 to the Main PWB (Voltage and Diode Check)
CN1 "T-CON" to "MAIN Board" P1501
Pin Label Run
1 n/c n/c
2 3D_SYNC 0V
3 n/c n/c
4 SDA2_3.3V 3.31V
5 5 SCL2_3.3V SCL2 3 3V 3.31V 3 31V
6 FRC_RESET 2.95V
7 LVDS_SEL 0V
8 n/c n/c
9 n/c n/c
10 PANEL_CTL 0V
11 Gnd Gnd
12 TXA0N 1.26V
13 TXA0P 1.15V
14 TXA1N 1.26V
15 TXA1P 1.14V
16 TXA2N 1.27V
17 TXA2P 1.13V
18 18 Gnd Gnd Gnd Gnd
19 TXACLKN 1.16V
20 TXACLKP 1.23V
Diode Mode values taken with all Connectors Removed
Diode Check Pin Label
n/c 21
OL 22 TXA3N
n/c 23 TXA3P
OL 24 TXA4N
OL OL 25 25 TXA4P TXA4P
OL 26
OL 27 BIT_SEL
n/c 28 TXB0N
n/c 29 TXB0P
OL 30 TXB1N
Gnd 31 TXB1P
OL 32 TXB2N
OL 33 TXB2P
OL 34
OL 35 TXBCLKN 1.16V
OL 36 TXBCLKP 1.23V
OL 37
Gnd Gnd 38 38 TXB3N TXB3N
OL 39 TXB3P
OL 40 TXB4N
Run Diode Check
Gnd Gnd Gnd
1.27V OL
1.15V OL
1.33V OL
0.98V 0 98V OL OL
Gnd Gnd Gnd
2.37V OL
1.24V OL
1.14V OL
1.27V OL
1.14V OL
1.31V OL
1.10V OL
Gnd Gnd Gnd
OL
OL
Gnd Gnd Gnd
1.34V 1.34V OL OL
1.07V OL
1.41V OL
76
Pin Label Run
41 TXB4P 0.99V
42 Gnd Gnd
43 Gnd Gnd
44 Gnd Gnd
45 45 Gnd Gnd Gnd Gnd
46 Gnd Gnd
47 n/c n/c
48 Panel_VCC 11.9V
49 Panel_VCC _ 11.9V
50 Panel_VCC 11.9V
51 Panel_VCC 11.9V
Bold labels are video signals.
Except 48~51 which are 12V
CN1
May 201 1 LCD TV 42LV5500
Diode Check
OL
Gnd
Gnd
Gnd
Gnd Gnd
Gnd
n/c
OL
OL
OL
OL
1