Service ManualModel No.: 42D35004-2. Mainboard4-2-1. Function DescriptionProcess signal which incept from exterior equipment then translate into signal that panel candisplay.4-2-2. Connector denition14IR & Key InterfaceCN6Pin number Signal name1 5V2 RED3 GRE4 IR5 GND6 K07 K18 K29 K310 K411 K512 K613 K714 GNDInverter connector CN2Pin number Signal name1 12V2 12V3 BLO4 ADJ5 GND6 GNDSpeaker connector CN18Pin number Signal name1 ROUT+2 ROUT-3 LOUT-4 LOUT+