VERY INTRESTING CASE STUDY

CG513 NM-A981 M/B lenovo ideapd 310-15XX

problem :- NO CHARGRING

BOARD OPEN KARNE PAR SAB SE PAHLE FIRST MOSFET DEKHA TO YE DRAIN TO SOURCE JUMPER KIYA HUA THA,
THODI DER DAIGNOSE KARNE PAR PATA CHALA KI FIRST MOSFET SWITCH NAHI HORA HAI IS LIYE PAHLE JIS ENGINEER NE IS PE KAAM KIYA THA US NE
JUMPER LAGA DIYA AUR BINA BATTERY LAGAYE CUSTOMER KO RETUN KAR DIYA, BATTERY LAGANE PAR DC MACHINE SHORTING SHOW KAR RAHI THI.
PAHLE STEP ME MOSFET REPLACE KAR KE DEKHA BUT NO LUCK, PHIR CHARGING IC KI REQUIREMENT CHEK KI, IC BQ24780S THI JIS KE BARE RAFI SIR NE
BATAYA HUA HAI KI ISKE 2-3 NUMBER APNE PASS STOCK ME RAKHO.INITIALLY CHARGING IC KI REQUIRMENT OK LAG RAHI THI PAR PHIR BHI 25VOLT FIRST MOSFET KO
SWITCH KARNE KE LIYE NAHI BAN RAHA THA,(AB THODA SHORTCUT ME) CHARGING SECTION KE SARE MOSFET CHANGE,CLR CHANGE, CHARGING IC CHANGE BUT NO LUCK.
BOHOT PARESHAN HONE KE BAAD EK DIN FINALLY CLUE MILA,ASAL ME CLR KE PARELAL JO CAPACITOR THA USKE SECOND SIDE PE ACN NAHI AARA THA QKI TRACK UNDER SE CUT
GAI THI SCHEMATIC ME ISKI POSITION PC305 HAI, ISKI CONNECTIVITY PC306 SE BHI NAHI BAN RAHI THI, SOLUTION BOHOT SIMPLE THA JUMPER SE CONECTIVITY BANADI AUR CASE
SOLVED.( THREE THINGS PATIENCE HARDWORK AND RAFI SIR KA GUIDENCE) SE HAR CASE SOLVED HOGA INSHA ALLAH.
(IS CASE ME RAFI SIR NE CLUE DIYA THA CLR KA).

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💥Notice : AFS SOLUTIONS
💥Next PRACTICAL WORKSHOP batch starts from June 5th to 20th June 2023.
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