- 11 -3-3-1 Function Description:Supply power for Main board, Panel.&RQQHFWRUGH¿QLWLRQCN2Pin number Signal name9 GNDGNDGNDGNDGND10 GND11 GND12 +12V13 +12VPOWER ON/OFF+5VSTB+5V+5VCN1Pin number Signal name+24V+24VGNDGND+24V+24V56783-4. LCD PanelV315H4-LE2