Service ManualModel No.: 32D30054-2. Mainboard4-2-1. Function DescriptionProcess signal which incept from exterior equipment then translate into signal that panel candisplay.4-2-2. Connector definition14IR & Key InterfaceCN6Pin number Signal name1 GND2 K73 K64 K55 K46 K37 K28 K19 K010 GND11 IR12 GRE13 RED14 5VLED Backlight interfaceCN804/CN805Pin number Signal name1 LED+2 NC3 LED-Speaker connector CN20Pin number Signal name1 ROUT+2 ROUT-3 LOUT-4 LOUT+