LG 42PJ350 Training Manual page 118

Main Board Plug P301 to Power Supply Voltages and Diode Check
Main Board Plug P301 to Power Supply Voltages and Diode Check
P301 Connector "Main" to "SMPS Board" P813
Pin
1_2
3-4
5-7
c
8 Error_Det
9-12
13-14 STBY_5V
15
16
17
e
18 Auto_Gnd
a Note: The RL_On turns on +5V, 17V Error Det. and AC_DET.
b Note: The M5-On command turns on M5V, Va and Vs.
c Note: The Error Det line is not used in this model.
d Note: If the AC Det line is Missing, the TV will turn off in 10 Seconds.
e Note: Pin 18 is grounded on the Main. If opened, the power
supply turns on automatically.
Diode Mode Check with the Board Disconnected. DVM in the Diode mode.
Label STBY
17V 0V
Gnd Gnd
5V 0.47V
2.88V
Gnd Gnd
3.49V
a
RL_ON 0V
d
AC Det 0V
b
M_ON 0V
Gnd
Run Diode Check
16.8V Open
Gnd Gnd
5.24V 0.94V
4.93V 3.04V
Gnd Gnd
5.23V 1.1V
2.43V 2.52V
4.45V 2.93V
3.27V Open
Gnd Gnd
118 August 2010
Pin front
P301
Front pins are odd
Back pins are even
42PJ350 Plasma