ATS alarm showed obstructed motion. TC reported opened and closed train doors and cab doors but to n o avail. There was no fault indication and no circuit breake r was tripped. Train was unable to proceed in all modes. Tri ~~~~~ Check and found no power supply from line 7029 to 7030. Hence propulsion command line (SR1 & SR2) not energised. Further check found DIR-1 contact OL and SR1 & SR2 unable to energise. Replaced faulty DIR-1 relay, fault cleared. Depot shunting performed ok. Done by Jack. 24/07/20.     ER downloaded RSDBSD PTU006. Check thru saloon door guide rail found #3516-A1 door having tissue paper stuck in-between guide rail, removed the F.O.D.    Open & close both cab door, A & B side DIR ok. Conduct 10/20mm-ok, door cyclic check ok. DCB & DIRBS normalised before conduct above check. #1515-A2 RHS door strip folded, adjusted ok. #3516 check AK-1, 2 & 3 relay coil ok. Done by Haslan/Saini/Zulq. 23/07/20.