LG 50PJ340 Training Manual - Page 119
Main Board Plug P301 to Power Supply Voltages and Diode Check
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Main Board Plug P301 to Power Supply Voltages and Diode Check Diode Mode Check with the Board Disconnected. DVM in the Diode mode. Pin c front P301 Connector "Main" to "SMPS Board" P813 Pin 1~2 3~4 5~7 8 9~12 Label a 16V Gnd a 5V ac Error_Det Gnd STBY 0V Gnd 0.46V 2.85V Gnd Run 17V Gnd 5.17V 4.9V Gnd Diode Open Gnd 0.94V 3.04V Gnd 13~14 15 16 17 18 STBY_5V a RL_ON ad AC Det b M_ON e Auto_Gnd 3.46V 0V 0V 0V Gnd 5.14V 2.43V 4.44V 3.29V Gnd 1.07V 2.62V 3.1V Open Gnd P301 Front pins are odd Back pins are even 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. 119 July 2010 50PJ350 Plasma