LG 42PQ30 Training Manual page 115

Front LED PWB Plug J2 to Key PWB Voltages and Resistance
Front LED PWB Plug J2 to Key PWB Voltages and Resistance
Voltage and Diode Mode Measurements for the Main Board
J2 CONNECTOR "Ft LED PWB" to "Ft Keys"
Pin *STBY1
1 0V
2 0V
3 4.38V
4 Gnd
Diode Mode Readings taken with all connectors Disconnected. DVM in Diode Mode.
*STBY1 Main Power Switch "OUT"
*STBY2 Run
3.29V 3.29V
3.29V 3.29V
Gnd 0V
Gnd Gnd
*STBY2 Main Power Switch "IN"
Diode Mode
Open
Open
Gnd
Gnd
Preliminary Information 42PQ30
115
J2 Pin