Introduction
Some components are expected to wear out over UNIT-4’s lifetime - main examples being batteries and speaker drivers. UNIT-4 has been designed to be disassembled with glue-free design by anyone with 2 screwdrivers and AIAIAI’s step by step repair guides. This will make sure your UNIT-4's will stay with you for as long as possible.
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All you need is a thin, hard plastic tool or an old credit card and 2 cross head screwdrivers. We use a Phillips 0 and a Phillips 2.
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Make sure UNIT-4 is turned off.
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Use a thin, hard plastic tool or an old credit card and pull off the front panel.
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Take a screwdriver and remove all 6 screws from the woofer.
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Gently pull out the woofer from the housing.
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Use a tool that is slim enough to press in the lock mechanism of the woofer connector. We use a Phillips 0 screwdriver.
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Remove the woofer.
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Connect the new woofer to the PCBA and fix into it into the front housing.
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Add the 6 screws and hand tighten.
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To reassemble your device, follow these instructions in reverse order.
