Nokia NWSP Assembly Instructions Manual
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NWSP Wrist UnitAssembly Instructions 3 (12)Copyright © 2008 Nokia Corporation Tom Ahola 2008-05-151. ELECTRONICS ASSEMBLY1.1 Bluetooth antenna and keypadStart by attaching the Bluetooth antenna and touch keypad to the add-on board as shownin Figure 2. The wires for the keypad can be a piece of ribbon cable or separate wires. Forthe wrist unit the length of the cable/wires can be 20-25mm. Too long wires will be difficultto fit into the casing. The keypad circuit board will be glued to the cover so there must notbe anything (glue, solder, wires) shooting out to the flat side of the board. The wires don’thave to be inserted into the holes but can be soldered to the surface only. The wiresshould be connected so that each one of the five pads on the keypad board are connectedto each one of the pads on the add-on board in order with the orientation of boards shownin the figure. The wires should bend to the direction over the integrated circuit on thekeypad PWB as shown in Figure 3. Glueing of the wires is optional but recommended tomake the connections robust enough to allow opening and closing of the device severaltimes for programming.Figure 2 Attaching the Bluetooth antenna and touch keypad to the add-on board. |
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