LG 50PQ30 Training Manual page 125

Front LED Board Plug J1 to Main Voltages
Front LED Board Plug J1 to Main Voltages
Voltage and Diode Mode Measurements for the Main Board
J1 CONNECTOR "FRONT IR" to "MAIN" P1001
Pin
1
2
3
4
*5
6
7
8
9
Stand By 5V
10
11
12
13
14
15
Diode Mode Readings taken with all connectors Disconnected. DVM in Diode Mode.
Label STBY
IR 4.8V
Gnd Gnd
Key1 0V
Key2 0V
P Key 0V *(5V)
Gnd Gnd
EYE-SCL 0V
EYE-SDA 0V
Gnd Gnd
5VST 5V
3.3VST 0V
Gnd Gnd
LED-R 3.23V
LED-W 0V
PWM 0V
Run Diode Mode
5V 3.2V
Gnd Gnd
3.3V 1.6V
3.3V 1.6V
0V Open
Gnd Gnd
3.3V 2.5V
3.3V 2.5V
Gnd Gnd
5V 1.06V
5V 1.1V
Gnd Gnd
0V 3.22V
03.23 Open
0V 1V
125 November 2009 50PQ30 Plasma
J1 Pin
* Pin 5 (Power Key)
This pin is 0V when the
Main Power button is
locked "On" (In) and 5V
when it is locked "Off"
(Out)
* Pin 5 (Power Key)
When this switch is
out, Stand-By 5V turns
off.