Cn1 T-Con Connector Cn1 To The Main Pwb (Voltage And Diode Check) - LG 55LW5600 Troubleshooting Manual

CN1 T-CON Connector CN1 to the Main PWB (Voltage and Diode Check)

CN1 "T-CON" to "MAIN Board" P3501
Pin Label
1 n/c
2 *3D_SYNC
3 n/c
4 SDA2_3.3V
5 5 SCL2 3 3V SCL2_3.3V
6 FRC_RESET 3.14V
7 LVDS_SEL
8 n/c
9 n/c
10 PANEL_CTL
11 Gnd
12 TXA0N 1.23V
13 TXA0P 1.16V
14 TXA1N 1.25V
15 TXA1P 1.15V
16 TXA2N 1.27V
17 TXA2P 1.15V
18 18 Gnd Gnd
19 TXACLKN 1.19V
20 TXACLKP 1.23V
Pin 2 (3D_Sync) will go high when 3D is played.
But is not used by the Main Board.
Diode Mode values taken with all Connectors Removed
Run Diode Check Pin
n/c n/c 21
0V OL 22
n/c n/c 23
3.3V OL 24
3.3V 3 3V OL OL 25 25
OL 26
0V OL 27
n/c n/c 28
n/c n/c 29
0V OL 30
Gnd Gnd 31
1.94V 32
1.94V 33
1.94V 34
1.94V 35
1.94V 36
1.94V 37
Gnd Gnd Gnd Gnd 38 38
1.94V 39
1.94V 40
y
Label Run Diode Check
Gnd Gnd Gnd
TXA3N 1.29V 1.94V
TXA3P 1.12V 1.94V
TXA4N 1.33V 1.94V
TXA4P TXA4P 1 08V 1.08V 1 94V 1.94V
Gnd Gnd Gnd
BIT_SEL 2.40V OL
TXB0N 1.23V 1.94V
TXB0P 1.18V 1.94V
TXB1N 1.24V 1.94V
TXB1P 1.17V 1.94V
TXB2N 1.29V 1.94V
TXB2P 1.15V 1.94V
Gnd Gnd Gnd
TXBCLKN 1.19V 1.94V
TXBCLKP 1.23V 1.94V
Gnd Gnd Gnd
TXB3N TXB3N 1.27V 1 27V 1.94V 1 94V
TXB3P 1.31V 1.94V
TXB4N 1.31V 1.94V
85
Pin Label Run
41 TXB4P 1.08V
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 11.98V
49 Panel_VCC 11.98V
50 Panel_VCC 11.98V
51 Panel_VCC 11.98V
Bold labels are video signals.
Pins 48~51 are 12V
CN1
Hash marks in steps of 5.
Fi t h First hash mark is off by 1 pin. h k i
Starts on pin 6.
July 201 1 LCD TV
Diode Check
1.94V
Gnd
Gnd
OL
Gnd Gnd
Gnd
n/c
OL
OL
OL
OL
1
ff b 1 i
55LW56000