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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 00 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 16 screws.
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Place UNIT-4 upright and carefully lean forward while supporting the front as shown in the video.
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If the front housing is too tight, we recommend using a flathead screwdriver or similar to pull the housing out. You can do this by pulling it out by the magnet locks.
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Disconnect the 6 connectors on the back edge of the main circuit board.
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Take a screwdriver and remove the 2 screws from each side.
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Lift out the battery packs.
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Slide battery packs in to place. The pack with the connectors is on the right hand side.
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Push the connecting cable underneath the bass vent.
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Hand tighten the 2 screws in each side.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
