buzzing sound. how to locate bad component

[ktmmotocross]

hello. have toshiba notebook that have short on 19V power rail.
injecting voltage and short gone, but culd not locate bad conponent.
board work now ok but it comes buzzing sound from board. i cannot locate source of this sound.

any advice how to locate this bad buzzing component?

[stj]

Re: buzzing sound. how to locate bad component

put your finger on it and it wont vibrate.
99% chance it's a coil, but it could be vibrating because of something else connected to it like a bad diode or capacitor.

[nazrul145]

Re: buzzing sound. how to locate bad component

Board ok means power and display ok?