Technical Support HP ProBook 450 G1

[pankajbiyani]

I HAVE A PROBLEM IN LAPTOP BATTERY MODE NOT TURNING ON BUT ADAPTER MODE LAPTOP START THEN BATTERY CHARGING % NOT INCREASE ,

I CHECK DONE,BATTERY DRIVE MOSFET AND CHARGING IC REPLACE BUT PROBLEM NOT SOLVE,

 

[Ahmad Safari]

Before doing anything, test with a healthy battery.

 

[pankajbiyani]

Before doing anything, test with a healthy battery.

I already replace new battery but not battery charging percentage increase

 

[Ahmad Safari]

Check the adapter.
Check the detect adapter path from the jack to the EC. Usually there is a 100 ohm resistance in the path that burns and the ohm increases.
Check the charging IC and EC IC.

 

[Prozon]

Did you check voltage in regn pin in charging ic is your boost voltage available.

 

[pankajbiyani]

Did you check voltage in regn pin in charging ic is your boost voltage available.

Yes Regn Voltage Present

 

[Ahmad Safari]

ic charge voltage with charger:

vcc 19v
acdrv=24v or 8v (n or p chanel)
acok=3v
regn=6v
acdet=2.5v
scl=3.3v
sda=3.3v

 

[pankajbiyani]

ic charge voltage with charger:

vcc 19v
acdrv=24v or 8v (n or p chanel)
acok=3v
regn=6v
acdet=2.5v
scl=3.3v
sda=3.3v

My Problem is solved

 

[Ahmad Safari]

My Problem is solved

In which part was the problem and how did you find it?

 

[pankajbiyani]

In which part was the problem and how did you find it?

Battery charging section one register removed then my problem solved

 

[Ahmad Safari]

Battery charging section one register removed then my problem solved

Can you be more specific?

 

[pankajbiyani]

Can you be more specific?

Means

 

[Ahmad Safari]

Can you explain more exactly how the problem was solved?

 

[pankajbiyani]

Hello Sir,
I done Shift PR4403 Down PR4406 And PR4402 Removed, Then battery Charging % increasing and battery mode laptop work,