81APPENDIx 1For the following serial range, there are modifications to the standby PSU board:ModelSO#Serial No.PCB versionT187#90200384K1YT187G01001-K1YT187G011000201100127-902010 Issue 011#90200386K1YT187G01101-K1YT187G01200The purpose is to make the MCU to detect power down correctly, details as follow:ORIGINAL CONNECTION:MODIFIED CONNECTION: