Apple Wireless Keyboard (A1255)

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Apple Wireless Keyboard (A1255) Teardown

Teardown

Teardowns provide a look inside a device and should not be used as disassembly instructions.

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I bought this keyboard off eBay broken just to tear it down for posterity. I found very little that could be repaired on it. But you get to see its guts. This teardown destroys the keyboard!

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Edit Step 1 — Apple Wireless Keyboard (A1255) Teardown ¶

Screws open with a coin and holds two AA batteries.
Right side contains the on/off switch and pushes in.

Edit Step 2 ¶

The upper left hand corner (when turned over) of the keyboard contains the On/Off switch and the bluetooth board.
The removable plastic covering plate may be removed by squeezing it together to release the retaining hooks, Do one side at a time, Squeeze and rotate upward.

Edit Step 3 ¶

The plastic is very stiff and there are three sets of two hooks on each side. This one has been deformed on the back right hand side from a heat gun.
There is a 90 mm by 12 mm circuit board intersected by a vertical 53 mm by 7 mm board forming a T shape. The vertical board appears to be the bluetooth antenna.
Part # 820-2181 is printed on the board.
This board also has the Power Indicating LED light. This board fits inside the round casing unit by the power button. The power button, battery connector and keyboard all connect to this board.

Edit Step 4 ¶

The board is held in place with a small Phillips screw.
Ater removing the screw the board can be gently extricated from the tube.
Note the red and black wires. This connector inserts laterally. The wires go to the battery receptor in the middle of the tube.
The screw is in two parts, a phillips screw goes into a post screw. The top screw holds in the board and the post screw holds the On/Off switch in place.

Edit Step 5 ¶

Here's the obverse of the board. There is a black two prong connector that plugs into the board from the power switch.
The wires run under a small plastic retaining tab and can be moved downward and out.

Edit Step 6 ¶

The power switch is held in place by the Main Board Bracket. Apple Part # 815-9674. The end of the bracket has a small round protrusion that fits into a crescent shaped cut out on the power switch.
The Power Button Board can be pushed out from the inside.

Edit Step 7 ¶

The internal battery terminal can be knocked out with a long screwdriver. It is spring loaded and held in place by a metal expansion ring.
I could not discern how the exact placement is determined as the interior of the tube appears to be perfectly smooth.