LG LG 42PG20 startup sequence [TM] free download

File name LG_42PG20_startup_sequence_[TM].pdf

50PG20/42PG20 POWER SUPPLY TURN ON COMMANDS FROM MAIN PWB M5V M5V (DC Voltage) Reg To Y-SUS, then to 7 Control PWB. In Stand-By In Run (Relay On) 8 AC In Primary side is Primary side is 90V 370V Vs Vs/Va (DC Voltage) 1 Stand 5 12V/16V 9 Reg By 5V Reg Regulators Va To Y-SUS, Z-SUS Reg Va routed to X-PWBs AC Stand 10 Det. By 5V 12V 16V See Note1 NOTE 1: 5V Relay M5V Vs 50PG20 has 12V and 16V to Main at turn on. Det. On On On 42PG20 only has 16V. 3 2 5 5 6 6 7 9 12V 16V Video Audio Turns on 5V Red LED Reg 2 Relay At point 3 TV is in Turns on On Stand-By state. 5 Energy Star compliant. Green LED 5 Less than 1 Watt AC Both LEDs On Det. Looks Amber Resets Microprocessor 7 Main Board or 9 BCM 3 Power Remote Button Or Key