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Редактирование шага 12 —

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Here's the circuit board, earphone jack and speaker after they've been removed from the case.

Notice that there are components mounted on both sides of the circuit board. Perhaps the resistors and capacitors on the solder-side were a last minute design change?

On the other hand, the circuit board is so tightly crammed on the component side there probably wasn't enough room for everything on one side.

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