LENOVO G470 DEAD

[shaurya computers]

PROBLEM: DEAD
LAPTOP CAME IN DEAD CONDITION

CONNECTED TO POWER SUPPLY AND FOUND BOARD WAS SHORT
EXAMINE THE WHOLE BOARD AND FOUND CAPACITOR PC306 WAS VERY HOT
REMOVE PC306 SHORTING PROBLEM SOLVED
SWITCH ON THE BOARD BUT AFTER 2 OR 3 SECOND LED LIGHT GOES OFF
EXAMINE THE Y1 32.768 KHZ SMD CRYSTAL WITH CRO AND FOUND THERE WAS PROBLEM IN FREQUENCY
BUT I WAS NOT HAVING THE SMD TYPE 32.768 KHZ CRYSTAL SO I CHANGE IT WITH CYLINDER TYPE CRYSTAL WHICH IS MOSTLY USED IN DESKTOP MOTHER BOARD
DISPLAY COME AND AFTER LENOVO LOGO IT SHUT DOWN
NOW ES BIOS FLASH WITH WORKING BIOS BIN FILE

PROBLEMS SOLVED NOW THE LAPTOP IS WORKING FINE

[suryajaved]

Very Good Bro

[Ramjanghel]

Nice work

[Bednarek]

Nice job. Keep this way.