hi-i'm new to n scale and recently acquired the above mentioned locomotive-it apparently is a dcc unit-barely familiar with dcc but based on what i've read that is correct. it supposedly has a bad wire from decoder to brush motors?-i only have dc controlled units presently-and am looking to find out what the value of this loco may be whether running or in need of repair-and is it possible( if i were to repair it)could i use it on dc only-does this setup have sound etc.-thank you all for looking and any info u have is greatly appreciated!