hp omen ax062nf laptop not charging with ac adapter

[mv270]

Hi
That laptop wont charge I dont know if the charger is genuine.
To investigate further does anyone know about
how the id pin works for this model, is it a pullup to plus or a analog voltage divider or a
complete digital exchange.
Thanks

[mon2]

On barrel / coax power connectors, HP likes to use a low analog voltage that is then sampled by an A/D inside of the EC to gauge the power of the adapter. There are public articles on this topic.

Dell uses a 1-wire interface (Dallas Semiconductor) to communicate the adapter details.

[mv270]

ok thanks

[mon2]

HP Laptop Charger 3 Pin-Out Explained and diy 12v charger (youtube.com)

[mv270]

100 k pullup seems to work

[mon2]

Awesome!! The feedback is appreciated.