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💥Case study 16 💥Samsung Rv411 💥Problem No Display, 💥Dc Reading in 30 mili second 12 30 15 💥 when laptop on dc Reading go to 3000 mile amp in battery mode, 💥 without battery 1700 mili amp 💥but one imp points is mujhe burning smell aa arhi thi . 💥 then open laptop I check where is burning, I found near CPU core section one MOSFET is burn. 💥then I check MOSFET is short. 💥 I replace MOSFET ,and I check every coil impedance is okey 💥I connect dc jack reading is go to 6 means board ok. 💥but when I trigger mother board amp reading gos to 750 ,1200,1500,then dc Reading showing short and board is off, Try to second time conditions is same reading go 750 ,1200,1500, and short and mother board is off. 💥 phir sir Rafi sir ke Dell mother board ka video ki baat yaad aai، Jab bhi core section ka MOSFET ude ga tab tab core ic bhi change karna 💥then change ic and re triger board dc Reading gos to 750 1200, 1500, 1750, 1900, and1950 and display come alhamdulillah. 💥 thanks Rafi Sir

Case study Dell n5010 Board statush : dead 1st step--- Connect dc Jack and chek 0.30 mili second. Direct 5.012 Iska matlab board full short. 2nd step--- Open laptop and clean motherboard,and I watch allredy another engineer work this board in sb section. 3rt step ---- Chek all section impidance Clr-0.046 Pl4601-0.000 Pl4602-0.000 Pl4901-0.000 Pl4701-0.007 Pl4702-0.007 Pl4703-0.007 Pl5301-0.006 Pl5001-0.008 Bios pin no.8-0.000 Pch cap - 0.003(1.8v) 2nd cap - 0.000(3.3v) 4th step -- I thought this board is fully short,it's non repairable board. But again thoth is board se kuchh sikhte hai. 5th step-- Remove sb section both coile And chek impidance Pl4601(input/output)-0.00/0.00 Pl4602 (input/output)-0.147/0.00 6th -- Again chek clr-0.168 I decide inject voltage 2.3v in sb section output Pl4601 on inject voltage in output section and I found u701 ic is hitting... I will remove this ic and chek output impedance.... Pl4601 output impedance is good 0.367,I'm happy 3v section jinda ho gaya,but 3v ldo still short, I think who section is fully.again some time thinking and I decided standby ic remove and again chek 3.3v ldo section is ok.i am very very happy ki mera pch bhi ok hai. But 5v section still shorting. 7th step -- Inject 3.3v on pl4602 output section and chek any clue, after inject 5sec voltage I found pu5001 ic is very very hitting, agin remove this ic and again chek impidance pl4602 output section is good impedance5 0.325. 8th step-- Again chek all section impidance All section impidance is good,and clr impidance is also good 0.457. 9th step--- All new ic fix in motherboard,and chek impidance all section, all section impidance is good,and connect dc and chek 0.30 mili sec 0.026,0.017,0.008.... 10th step -- Finally given 19.0v by dc. My board is on and amp.0.008,0.360,0.0758,0.950 and display is came on my pendrive....... And I am very happy ....... And diliver laptop to deler..... And deler is also very happy and thankfully. Thank md.rafi sir,sir agar aap hame na milte to ham bhi aur engineer ki tarah Puri india ghumte,aur koi sahi rasta dikhane wala nahi milta. I'm very very thanks to md.rafi sir and all afs family members.....

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HP 440 G4 PART NUMBER DA0X81MB6E0 REV E NO power 💥DC reading 17-4(stuck in 4) 💥Pressing power button but nothing happened 💥Checking board all clear all COIL value okay 💥 Heat in oven but nothing happened Now try FITC tools 11th version for updating BIOS (as rules as bios DVD) 💥Wow DC READING 23-17-16-7-13-14 AUTO POWER ON AND DISPLAY SHOWING IN PENDRIVE..ITS MY GREAT WORK... It's BIOS DVD POWER MAKE ME OVER POWERED THANKS TO RAFI SIR

Case Study-36 Dell Inspiron 3501 i3-11th Gen LA-K034P Rev 1.0 Dc Reading is0.035-50 Open Laptop check No Corrosion Neat and Clean Board Check RTC it is Ok Remove Board and Check impadance PL301 is Low Check carefully PU301 AWV(SY8286B) leg was Slightly Burn remove And Repair That Burning Track And Replace ic Before Check This Also remove the DC To Dc Ic for Protection then Check in 30 milliseconds Dc Reading in 3 digits also Short check dc to dc ic input 3v leg impadance it was low doubts on iO controller it was MEC1515-NB Remove it And now impadance was high Order The New io and Fix it After fixing all ics Plug the dc Machine Start it fan Running Fast So i Was Leav it because it was programming new io controller In this board 2 bios 8 and 16 mb Then after 45 minutes and 2-3 restart laptop is Shut down and now i turn on Boom💥 Display Was Come Now 2nd Problem When laptop is Off Condition it Charging is Normally but when i turn on and plug the adaptor adaptor light is shorting same on DC Machine Open again and Check When battery and Adaptor Connect Pqb11 and Pqb12 was heating Pqb12 replace with same Number but PQB11 is B04N03 it was 30v and 70A N-Channel Mosfet Then i had replace with AON6554 It is 30v 85A N-Channel Mosfet Now Laptop Charging Normally and Working Fine Thanks To Md.Rafi Sir for Giving us Confidance For Practical Thank you 💕 Fahim Bhai and AFS Solution Banglore its DVD Magic

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