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Next we get to pop out the power supply board. We deal with so many mobile devices, it's almost novel to see this tiny li'l guy.

Looks like a party with some cans and some chips:

Texas Instruments TPA3118 30-W stereo (BTL) class-D audio amplifier

Wolfson WM8904G ultra-low-power codec for portable audio applications

There's also an array of contacts (accessible via the Show's rubber foot), likely for testing purposes.

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