Train prep report 3622 A1 door unable to ~~~~~ Check and confirmed #3622-A1 door DCP circuit breaker tripped and unable to normalise.Checked and found door unlock solenoid shorted(0.5ohm)nominal approx.58ohms.Further checks found DCP to door unlock solenoid with constant 105VDC when there is no door open command.Proceed to replace both DCP and DLD-ok.Carried out door cyclic/function test,satis.Door opening/closing timing,satis KSF"B" Door lock device (3622-A1 door) Old s/n: C151BDL152006 New s/n: C151BDL141059 Not: 2350240 raise to RSW. KSF"B" Door control Panel (3622-A1 door) Old s/n: 1502W020001S038 New s/n: 1502W020011S009 Not: 2350241 raise to RSW. Done by Joshua  20/01/22