LG 50PQ30 Training Manual page 117

Main Board Plug P1006 to Power Supply Voltages and Diode Check
Main Board Plug P1006 to Power Supply Voltages and Diode Check
Voltage and Diode Mode Measurements
Diode Mode Readings with all Connectors Disconnected. DVM in the Diode mode.
P301 CONNECTOR "Main" to "Power Supply" P813
Pin Label
1 17V
3 Gnd
5 12V
7 Gnd
9 5V
11 5V
13 Gnd
15 Gnd
17 5V Det
19 RL On
21 M5 ON
23 Stby 5V
STBY Run Diode Mode
0V 17.3V
Gnd Gnd
0V 12V
Gnd Gnd
5V 5V
5V 5V
Gnd Gnd
Gnd Gnd
0V 4.6V
0V 3.3V
0V 3.3V
5V 5V
Pin
Open 2
4
Gnd
6
Open
8
Gnd
1.1V 10
1.1V 12 STBY5V
14
Gnd
16
Gnd
18 AC Det
Open
20 VS On
Open
Open 22
Auto Gnd
1.36V 24 *Key On
*Note: If the Key On line is 5V, the Main Power
Switch is open. Stand-By 5V will shut off.
117
Label STBY Run
17V 0V 17.3V
Gnd Gnd Gnd
12V 0V 12V
Gnd Gnd Gnd
5V 5V
5V
Gnd Gnd Gnd
Gnd Gnd Gnd
4.6V 4.5V
0V 3.3V
Gnd Gnd
0V
November 2009 50PQ30 Plasma
P1006
Pin front
Diode Mode
Open
Gnd
Open
Gnd
5V 1.1V
5V 1.1V
Gnd
Gnd
Open
Open
Gnd
0V Open