Samsung Electronics5-10• It is necessary to set up option code after replacing the main-PCB as a service parts.Make sure that you can set up the option of code the remote controller after you replace the mainPBA otherwise, the unit won’t be working properly and all LED lamps on display will be flickering.Step 1 : Preparing the remocon to main PCB option set1 st Remove the battery from the remocon.2 nd Press the temperature raise/down button simultaneouslyand insert the battery again.3 rd Make sure the remocon display shown as .Step 2 : Second stage preparation of the remocon option set.The Method for Setting up the model option with remocon❈ Note ; In case the wrong letter has been selected, continue to press the button until the correct letter appears.1st If the first stage number “ ” appears on the display, proceed to the second stage.2nd Every time the ! and & button, “ ” and “ ” each continue to appear.3rd Whenever pressing the @, #, $, %, ^, *, (, ), 1, 2 button, the number increase from0~9(0123456789) and A, b, C, d, E, F each time.! If the first number is , it is correct otherwise press untilappear.@ When pressing the button ~ appear on the display,select one of them.# When pressing the button ~ appear on the display,select one of them.$ When pressing the button ~ appear on the display,select one of them.% When pressing the button ~ appear on the display,select one of them.^ When pressing the button ~ appear on the display,select one of them.5-5 Set up the Model option