LG 50PG20 Training Manual page 42

Switch Mode Power Supply Static Test (Forcing on the SMPS in sta ges)
Switch Mode Power Supply Static Test (Forcing on the SMPS in sta ges)
Ground the Auto Ground (Pin 22) on P803
Remove AC between each test step
AC Power Applied AC Det (Pin 18) and 5V STB (Pins 9 ~ 12) are 5V.
100Ω ¼ watt resistor added from 5V STB (Pins 9 ~ 12) to RL ON (Pin 19) closes relay RL101 turning on the 16V Supply
100Ω ¼ watt resistor added from 5V STB (Pins 9 ~ 12) to M5V_ ON (Pin 21) brings the 5V VCC line high
100Ω ¼ watt resistor added from 5V STB (Pins 9 ~ 12) to VS _ON (Pin 20) brings the VA and VS Lines high
Plasma Spring 2009 50PG20
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