Hp dkl50 la-e802p no power on

[Sanjeewait]

La-e802p motherboard power detect, press the power button power on led 3,5 second no & off (power supply 0a) how to fix this error
i'm flash the bios - same error
any noe have schematic diagram

plz help me

[Techtiger]

Re: Hp dkl50 la-e802p no power on

first check your +19V +3.3VALWS +5VALWS line is ok or not then test all the Gray Coils resistance to GND , make sure your RTC VCC is not short

[Sanjeewait]

Re: Hp dkl50 la-e802p no power on

PRESS THE POWER BUTTON +19V +3.3VALWS +5VALWS line is ok & BIOS 8 PIN 3.3V COMING. 3,5 SECOND ON & AUTO OFF. AGAIN PRESS THE POWER BUTTON SAME ERROR.
I HAVEN'T A schematic diagram CHECK.

# HOW TO CHECK RTC VCC SHORTING

[Techtiger]

Re: Hp dkl50 la-e802p no power on

PRESS THE POWER BUTTON +19V +3.3VALWS +5VALWS line is ok & BIOS 8 PIN 3.3V COMING. 3,5 SECOND ON & AUTO OFF. AGAIN PRESS THE POWER BUTTON SAME ERROR.
I HAVEN'T A schematic diagram CHECK.

# HOW TO CHECK RTC VCC SHORTING

test all the Gary Coils resistance to GND Ohms take a snap and mark them upload the snap, then test all Gray coils the voltage as you press the power button mark and upload a the snap , for the VCC RTC check if the Bios battery is short