Hy to all. I finished weeks ago to assemble my K3 and all went perfectly. I then received KRX3 and added to K3 today. When i power on i hear the speaker, the LCD light on but no text is visible. Option installed are kpa3, kat3, kio3, kdrv3, kbpf3 on main receiver and of course krx3. Hope someone could help me Pippo IZ2NYY