❤️case study❤️ Ajay-Kerala

💥LAPTOP DELL 3558 MOTHERBOARD WISTRON 14216-1💥

💥PROBLEM NOT POWER ON💥

💥FIRST CHECKED USB PORTS FOR ANY SHORTS -NO PROBLEM FOUND💥

💥REMOVED KEYBOARD,BATTERY ,TOUCH PAD THEN TRIED SAME SYMTOM FOUND💥

💥CHECKE 3V IN BATTERY CONNECTOR FOUND OK💥

💥DC SUPPLY AMPHERE FOUND 0.044

💥REMOVED BOARD STARTED WITH RTC SECTION💥

💥RTC BATTERY VOLTAGE GOT LOW(FIRST CLUE)💥

💥REMOVED AND INSTALLED NEW 3V BATTERY💥

NO SCHEMATIC FOUND ,U NEAR CPU ONE PACK RESISTOR ONE SIDE FOUND VOLT 2.6V OTHER POINT 0V.

💥REMOVED CPU COOLER BASE💥