Samsung Galaxy S3 no power. Wala battery nung dinala sakin.
Actions taken:
1. Gamit tester, set diode mode
2. Check positive to negative .4 voltage drop, abnormal. Pareho lang reading pag binaliktad tester.
3. Check power rail, mga capacitors na nakapaligid sa power ic.
4. May nakita mga shorted na caps, pero malamang isang lang shorted nadamay lang iba kasi nakaparallel.
5. Ginawa ko, inject voltage gamit power supply. 1.8v 1.5amps. yun nag init isang cap kaya tanggal agad.
6. After tanggal nawala short, normal reading na. Power on gamit power supply, goods na.
Actions taken:
1. Gamit tester, set diode mode
2. Check positive to negative .4 voltage drop, abnormal. Pareho lang reading pag binaliktad tester.
3. Check power rail, mga capacitors na nakapaligid sa power ic.
4. May nakita mga shorted na caps, pero malamang isang lang shorted nadamay lang iba kasi nakaparallel.
5. Ginawa ko, inject voltage gamit power supply. 1.8v 1.5amps. yun nag init isang cap kaya tanggal agad.
6. After tanggal nawala short, normal reading na. Power on gamit power supply, goods na.