Bro tracing is the most important part of repairing and you said that’s not that important topic. With the help of tracing you can understand whole circuit and analysis it for further repairing.
Sir mujhe itna to ni aata pr....ap ne kaha ki DC bni ...fir wo transformer pe gyi ...esa ni ho skta kbhi bhi kyunki transformer...AC pe work krta h...aur aur kisi cct k first me transformer hota h ...fuse etc protection k baad .
