The speaker uses a coil which wraps around a tube around a magnet or steel core. the gap between the tube and the core is very little sometimes grit finds its way into the gap which will effect the speaker.
+
The speaker uses a coil which wraps around a tube around a magnet or steel core. The gap between the tube and the core is very narrow gap sometimes grit finds its way into the gap which will effect the speaker.
The other possibility is on the logic board where a noise suppression capacitor has failed.
The speaker uses a coil which wraps around a tube around a magnet or steel core. the gap between the tube and the core is very little sometimes grit finds its way into the gap which will effect the speaker.
The other possibility is on the logic board where a noise suppression capacitor has failed.
Let's hope it's the cheaper option here.