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Case study challenge 8/100 📌 Dell 5520 Laptop comes which board is la-8241p in dead condition 📌 Connect with dc supply showing vin shot open and remove board 📌 Chk for physical found pq203 completely burn (image no.1) remove that mosfet and capasitor again vin line showing shot remove its pad and clean totally burning place (image no.2) 📌 Again showing shot when i inject voltage till 1.5 amp on clr sb ic 51125 was heat remove that ic now vin shoting is gone 📌 But now 5valw coil showing low impedance inject 2v on coil some thing heat near usb port its ui2 and ui3 ic remove that shoting was gone now replace all ic and mosfet. 📌 Inject 19v but no changes on dc supply. Chk i/o remove its sticker and found i/o also burn 🤦‍♂🤦‍♂ (image no.4) replace i/o and boom laptop was on and display proper All credit goes to my schema guru Md.rafi sir who teach us how to work with patience thanks a lot sir Love you sir 🥰🥰🥰

Today Case Study 💥Four Laptop Repair in 1 hour 💥1st. Lenovo B490 💥Part no.12208-1 💥19 volt short 💥Just open laptop found one caps rusty and damaged 💥 Change caps no short repair in within 10 minutes 💥Trigerd mb display come case solve🥰 💥2nd Laptop Dell Part no.La-9832p 💥19volt short open laptop check caps found one caps foulty near CLR change 💥Case solved and display come 💥3rd Laptop Acer aspire 4520 💥No display 💥Just reflow Graphics chip case solve 🤗🤗🤗 💥Laptop working Fine 💥4rth Laptop Lenovo La-C282p 💥Problem Power on after display laptop off 💥First Check Graphics 💥Remove Gpu coil same Problem 💥Remove thermal ic case solved U17 💥After removed laptop working fine replaced ic with new ic 💥Case solved Display come and working fine checked 1 hour 14 out of 100 THANKS RAFI SIR For Increasing My Work Speed 💥You are a good teacher, you are the reason for my achievements. Thanks for being my mentor.💥🥰🥰🥰🥰

Aaj muje ek chota capacitor ne 1000 ₹ kamake diya

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