LG 42PQ30 Training Manual page 110

Main PWB Plug P301 to Power Supply Voltages
Main PWB Plug P301 to Power Supply Voltages
Voltage and Diode Mode Measurements
P301 CONNECTOR "Main" to "SMPS PWB" 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
Resistance Readings with the PWB Disconnected. DVM in the Diode mode.
STBY Run Diode Mode
0V 17.3V
Gnd Gnd
0V 12V
Gnd Gnd
5V 5V
5V 5V
Gnd Gnd
Gnd Gnd
.15V 5V
0V 3.73V
0V 3.24V
5V 5V
" Odd Pins
" Odd Pins
Pin Label
Open 2
Gnd 4
Open 6
8
Gnd
10
1.1V
12
1.1V
14
Gnd
16
Gnd
2.98V 18 AC Det
Open 20 VS On
Open 22
Auto Gnd
24 Key On
1.06V
110
"
"
STBY Run
17V 0V 17.3V
Gnd Gnd Gnd
12V 0V 12V
Gnd Gnd Gnd
5V 5V 5V
5V 5V 5V
Gnd Gnd Gnd
Gnd Gnd Gnd
5V 5V
0V 3.2V
Gnd Gnd
0V 0V
Preliminary Information 42PQ30
P301
Pin front
Diode Mode
Open
Gnd
Open
Gnd
1.1V
1.1V
Gnd
Gnd
Open
Open
Gnd
Open