mitsubishi ws48511

HOW DO YOU REMOVE THE CIRCUIT BOARD TO REPACE FUSES  F9A04, & F9A05. ON THE MITSUBISHI WS-48511?  I HAVE THE FUSES,JUST NEED TO KNOW HOW TO REMOVE THAT CIRCUIT BOARD .  AND CONNECTIONS TO THE OTHER CIRCUIT BOARDS TO BE ABLE TO GET THAT ONE CIRCUIT BOARD OUT?                                                                                                                         THANKS  WATCHITT