Power fault departing at front M1 car. Reset - ok. ~~~~~ Power fault departing at front M1 car. R     #2669-fault code 820,821,136,108. Check on #2669 line breaker,FC,Pre charging resistor ok.Swap MCU #2669 to #1669.Condcut limited movement,spark coming out from #2669 T/M 4-Isolate PRCB & tagged. MCU-s/n: #1669-J150200301-060 #2669-J150200301-064 #2609 T/M Flashover Not: 2123092 raise to RSW. Done by Sufhian/Alauddin/Henry. 21/01/20 0020 raise to follow up. TO check all Mcar pre-charging resistor     Check #1670 & #2670 Charging resistor found burn mark.Replaced and limited movement check ok. Done by Samsudin/Syafiq/Haffiz. 21/01/20