dell latitude e6420 charger with 19v 3,3a

[acata]

I'm working on dell latitude e6420. Default power input is 19,5v 3,34a. But unfortunately, it's not turning on whenever i charge with the default power input. Instead it's turning on when i switch it to 19v 3,3a.

What do i missed? Is there any faulty on the machine so it's can to be turned on with the default power input.

[acata]

I found a donor and replaced the ic cd3301. And i need to jumper pin 12 to PC274 and it worked.
Pin1 19.65 (psu)
Pin9 3.3v
Pin18 3.3v
Problem solved.

[mon2]

Locate the charger IC - which is onboard? Check the voltage of ACDET pin.

[acata]

Locate the charger IC - which is onboard? Check the voltage of ACDET pin.

I'm sorry. On 19v or 19,5v input?

[acata]

I just found that the ic selector is burnout. its PU14, CD3301. Is there a way to bypass this? or just replace it with the new IC?

[mcplslg123]

https://www.youtube.com/watch?v=IQb_tOlPCaA

[acata]

I found a donor and replaced the ic cd3301. And i need to jumper pin 12 to PC274 and it worked.
Pin1 19.65 (psu)
Pin9 3.3v
Pin18 3.3v
Problem solved.

[acata]

Locate the charger IC - which is onboard? Check the voltage of ACDET pin.

And thank you for your assistance