L1,L2 ,L3, L4, Repairing Kya hota hai Electronic manufacturing Company ke under RCA kya TRC Part 3

hello doston is video ke andar aap sabhi ko L1 l2 l3 l4 repairing ke bare mein bataya gaya hai ki L1 l2 l3 l4 repair kya hota hai aap sab mujhe ummid Hai ki is video ko dekhoge to acche se samajh jaaoge repairing kitne prakar ki Hoti Hai repairing mein kya-kya position se kis hisab Se repair Kiya jata hai aur RCA kya hota hai is video ke antargat mein hai RND kya hota hai troubleshooting kya hota hai jo bhi aapko question hai aap is video ko dekhne ke bad aap question mujhse kar sakte Aur poochh bhi sakte hain aur acche se main aap sabhi ko samjha bhi sakta hun to Jarur Mera video dekhen Aur meri video ko acche se like