Asus tuf 506l FX506lh no power boot

[azemar]

Hello I am contacting you because I have a tuf506l laptop which does not start just the keyboard and the power light which lights up for 1 second then nothing. I did not find a short circuit on the main rails. The battery charges well. I have already flashed the bios but no change. I also tried other rams even without any change either.Thank you in advance for your help .

[mon2]

Re: Asus tuf 506l FX506lh no power boot

Start with the charger IC review.

Remove all power. Check the resistance to ground of the main power rail @ pin # 1 (ACN) of the BQ charger IC.

What is the reading ?

Assuming there is no short / low resistance, power up:

Same pin - this is the main power rail and should be ~19 volts (steady).

Also review the other highlighted pins as per attachment.

[azemar]

Re: Asus tuf 506l FX506lh no power boot

Start with the charger IC review.

Remove all power. Check the resistance to ground of the main power rail @ pin # 1 (ACN) of the BQ charger IC.

What is the reading ?

Assuming there is no short / low resistance, power up:

Same pin - this is the main power rail and should be ~19 volts (steady).

Also review the other highlighted pins as per attachment.

here are the measurements on the BA charge

1 on gnd = OL

1=20.2v
2=20.2v
4=26.1v
5=3.2v
6=2.7v
24=18.2v
28=19.3v

[mon2]

Re: Asus tuf 506l FX506lh no power boot

Can you check the voltage to ground on pin #24 (REGN) again?

It should be ~6 volts.

[azemar]

Re: Asus tuf 506l FX506lh no power boot

Sorry 24=6.04v

[azemar]

Re: Asus tuf 506l FX506lh no power boot

Hello
the computer boots now i don't know the reason but it gets very hot at the gpu power rail. if I take charge, it heats up much more and turns off after 30 seconds. on battery the computer stays on but it only lasts about 20 minutes because it consumes a lot.