My daughters Harman Kardon Onyx Studio 6 stopped working and I found component U14 blown up. Probably because she plugged in a wrong power adapter.
Can anyone tell me what component that is so I can repair it?
I can’t seem to find the schematic…

 

Nội thất Harman Kardon Onyx Studio 5 như thế nào ? | Inside Harman Kardon Onyx Studio 5. - YouTube
Harman Kardon Onyx Studio 6 Teardown - Inside? Khác gì so với Onyx 5. - YouTube
Mổ bụng Loa Harman Kardon Go + Play | Độ pin 6000mAh cho loa Harman Kardon Go + Play - YouTube
Harman Kardon ONYX STUDIO Service Manual — View online or Download repair manual (servlib.com)
If you are quick with your microscope, you may get a glimpse of the chip.
Good luck.............

 

Nội thất Harman Kardon Onyx Studio 5 như thế nào ? | Inside Harman Kardon Onyx Studio 5. - YouTube
Harman Kardon Onyx Studio 6 Teardown - Inside? Khác gì so với Onyx 5. - YouTube
Mổ bụng Loa Harman Kardon Go + Play | Độ pin 6000mAh cho loa Harman Kardon Go + Play - YouTube
Harman Kardon ONYX STUDIO Service Manual — View online or Download repair manual (servlib.com)
If you are quick with your microscope, you
get a glimpse of the chip.
Good luck.............

mine too got busted, smd marking is AJYAQA

 

mine too got busted, smd marking is AJYAQA

After a Google search this turned up.
Is this the correct part?

 

many thanks for the reply!
ajyaqa is a dc/dc step down converter i think