Samsung RS257BABB Service Guide - Page 31

Operation Function 9-12) Sound Function 1) Sound function 1-1) To make sure a command input, whenever a button is pressed, a "ding-dong" sounds. 1-2) When two or more buttons are pressed simultaneously or if a wrong button is pressed, there is no sound. 2) Door Open Alarm 2-1) When the doors remain open for 2 minutes, there are 10 times beeps. 2-2) If the doors continue to remain open more than 2 minutes, the additional 10 beeps interval will change to 1 minute. 2-3) The beeps will cease immediately when the doors are closed. 9-13) Exhibition Function q This function is for a display purpose on the floor of show room or store. 1) Mode ON/OFF 1-1) For the exhibition mode, press Power Freeze and Freezer Temp. buttons simultaneously for 8 seconds until a "ding-dong" sounds. 1-2) Press the same time buttons again for 8 seconds to cancel this mode put with a "ding-dong" sound. 2) Operation 2-1) Most of the system function except the compressor operation are working properly. 2-2) There is no defrost cycle in this mode. 9-14) Self-Diagnostics Function 1) Self-Diagnostics in the initial Power ON 1-1)The control board performs a self diagnostics test within 1 second and check out the temperature sensors abilities. 1-2) If a sensor failure occurs, a corresponding LCD segment will blink with a beep. 1-3) When a LCD segment blinks, only the cancellation function (Press Power Freeze and Power Cool buttons simultaneously for 8 seconds) is acceptable. 1-4) After a replacement of bad sensor or a cancellation of this function, this self diagnostics will end. 2) Self-Diagnostics in the normal operation 2-1) To select this function, press Power Freeze and Power Cool buttons simultaneously for 8 seconds with an audible tone. 2-2) In the self diagnostic mode, only corresponding LCD segments will be illuminated (see the check list on the next page) 2-3) After a 30 second illumination of error signal, the system will return to the normal operation. 31