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Watch "#DELL N5050 DV15 10316-1 DUAL CASE STUDY BY @SCHEMA GURU" on YouTube
https://youtu.be/Q5qooB8u3X0
https://youtu.be/Q5qooB8u3X0
YouTube
#DELL N5050 DV15 10316-1 DUAL CASE STUDY BY @SCHEMA GURU
You will enjoy this case study if you watch till end
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Case study challenge 100/100
Lenovo g50-80 (nm-a362) laptop comes in no display issue. From our afs student.
📌 chk with dc supply amp goes to 0.200 approx.
📌 open laptop and chk for impedance, all ok.
📌 now chk voltages 5v ok but on 3v line it shows only 2.4v and other voltages not generate.
📌 now chk for 3v line output any leakage Or shoting but not found.
📌 then chk requirements all ok but @ btst pin it shows only 1.4v and other side 2.4v of capacitor.
📌 so i change capacitor first now chk voltages and 3.3v complete generate. And other voltages also complete.
📌 now plug in dc supply amp goes to 0.500 approx and display comes @ pendrive.
📌 but when I connect screen it's on and auto shutdown in 1 minute without display and amp stuck @ 0.68 and never triggered again.
📌 when it's stuck @ 0.68 I chk with thermal camera found sb ic heatup.
📌 directly change sb ic sy8206b and plugged it again. Display comes @ pendrive. Now I connect screen and Alhamdulillah now display comes perfectly on screen.
📌 Thanks to our schema guru Md. Rafi sir. Sir gave us knowledge from his knowledge, and gave us tricks to repair from that tricks which was invented by him. I complete today 100 case study because of him. Thank you sir thanks a lot.
Love you sir 🥰🥰🥰
Lenovo g50-80 (nm-a362) laptop comes in no display issue. From our afs student.
📌 chk with dc supply amp goes to 0.200 approx.
📌 open laptop and chk for impedance, all ok.
📌 now chk voltages 5v ok but on 3v line it shows only 2.4v and other voltages not generate.
📌 now chk for 3v line output any leakage Or shoting but not found.
📌 then chk requirements all ok but @ btst pin it shows only 1.4v and other side 2.4v of capacitor.
📌 so i change capacitor first now chk voltages and 3.3v complete generate. And other voltages also complete.
📌 now plug in dc supply amp goes to 0.500 approx and display comes @ pendrive.
📌 but when I connect screen it's on and auto shutdown in 1 minute without display and amp stuck @ 0.68 and never triggered again.
📌 when it's stuck @ 0.68 I chk with thermal camera found sb ic heatup.
📌 directly change sb ic sy8206b and plugged it again. Display comes @ pendrive. Now I connect screen and Alhamdulillah now display comes perfectly on screen.
📌 Thanks to our schema guru Md. Rafi sir. Sir gave us knowledge from his knowledge, and gave us tricks to repair from that tricks which was invented by him. I complete today 100 case study because of him. Thank you sir thanks a lot.
Love you sir 🥰🥰🥰