INSTALLATION-7-STEPS:PCBe sure both the TV and computer are Power off.1.Connect VGA and audio cable2.Connect power cord3.Power on the TV, switch to PC mode4.Power on the PCThis sequence is very important.PCPRESET MODE123800*6001024*7681280*76860606037.8848.3647.3RESOLUTION V.Freq.(Hz) H.Freq.(KHz)NOTE:PC V.Freq.(Hz) not more than 60Hz.8100-240V~ 50/60HzAC-INPUT HDMI VGA INPUT AUDIOVGA INPUTANTPbPr LRY Pb PrINPUTYAV