Einleitung
This guide shows how to replace the display LED of the iP21.
Werkzeuge
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Pry the four rubber feet from the bottom of the iP21 to expose four 11mm screws.
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Unscrew the four 11mm screws from the base.
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Pry the base loose using the spudger.
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Remove the base by hand.
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Remove the two black 6mm screws connecting the main circuit board to the housing top.
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Grasp front housing and back housing firmly.
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Gently pull front housing from the back housing.
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Remove six 6mm screws from display circuit board.
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Press black holding clips down and outward to release display circuit board.
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Lift display circuit board to detach it from the housing.
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Desolder the solder joints connecting the grounding cable to the display circuit board.
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Remove glue from the ribbon cables with your fingers. Grasp and pull the glue to remove it from the circuit board.
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Desolder the solder joints connecting the three ribbon cables to the back of the display circuit board.
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Desolder the solder joints connecting the two grounding cables to the back of the display circuit board.
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Desolder the solder joints connecting the two grounding cables to the back of the main housing.
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To reassemble your device, follow these instructions in reverse order.