SIR
POWER ON BLACK SCREEN NO BOOTING.
readok.rar BIOS FLASH NO POWERON.
INEED Dell INSPIRON 15-7548 DA0AM6MB8F1 SCHEMATIC and bios
I/P 19V ,PQ24-O/P 19V.PL8-O/P 13.5,
WROKING POWERSUPPLY 13.5
3.3V IS OK BUT 5V NO

thank u sir