ASUS X43B Laptop Doesn’t Trigger, EC Doesn’t Reset

A asus x43b notebook, doesn’t boot, connect power adapter, the current 0.005A, standby 3V, 5V voltages are normal. When press the power button, the laptop doesn’t trigger, the current doesn’t change. So check EC’s working conditions first, the EC chip is KB930QF A1.

So check power, clk, reset singal, found 37-Pin ECRST# singal voltage is 0.24V only, it isn’t normal. +3VALW is normal, and R1605 plus C1533 are RC Time delay circuit, to 37-Pin reset EC.  read more , By the way, In order to thank for every new and old customers and friends, offer 10% off from November 16th to November 30.