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Alphasmart 3000 Assembly Instructions

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A PCB

A 10-pin connector

A 10-pin flex cable

A 16-pin connector

An AlphaSmart 3000

81x Switches, MX-, Alps-, or Choc

A small Phillips-head screwdriver

Keycaps of these sizes: 72x 1U; 4x 1.25U; 2x 1.5U; 1x 1.75U; 2x 2.25U

Fig. 1

A 16-pin flex cable

A SPST DIP switch

4x Stabilizer sliders

A soldering iron

Solder, preferably narrow gauge

4x Stabilizer housings

2x 2U stabilizer bars

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Page 1 A SPST DIP switch 2x 2U stabilizer bars A 10-pin flex cable 4x Stabilizer sliders A 16-pin connector An AlphaSmart 3000 A soldering iron 81x Switches, MX-, Alps-, or Choc Solder, preferably narrow gauge A small Phillips-head screwdriver Keycaps of these sizes: 72x 1U; 4x 1.25U; 2x 1.5U; 1x 1.75U; 2x 2.25U...
Page 2 If you want to have a lock switch that lets you lock the On/Off key so it doesn’t get pressed accidentally, solder the DIP switch in the rectangle between the spaces labelled On/Off and File 1 in the top left corner of the front of the PCB, the side with silkscreen printing.
Page 3 Repeat all this for the other stabilizer. Remove any batteries in the AlphaSmart. Undo the 8 screws on the back of the AlphaSmart and carefully put them aside. Lift the front of the case and unplug the display cable from the main board.
Page 4 Insert 3 AA batteries, make sure the lock switch is in the ON position if you installed one, and press the On/Off key. If all went well, you should have a functioning mechanical AlphaSmart 3000! Soldering is Easy , an excellent primer on soldering: https://mightyohm.com/blog/2011/04/soldering-is-easy-...