CHRISTMAS TREE KITMODEL K-14Assembly and Instruction ManualELENCO®Copyright © 2012, 1989 by Elenco®Electronics, Inc. All rights reserved.
Qty. Symbol Description Part #r 1 PC board 518031r 1 SW1 Switch 541022r 1 B1 Battery holder 590096r 1 Buzzer with wires 595202Qty. Symbol Description
INTRODUCTIONThe Electronic Christmas Tree Kit is a fun project which also gives you the opportunity to learn about the wonderful fieldof electronics.
-3-CONSTRUCTIONSolderSoldering IronFoilSolderSoldering IronFoilComponent LeadSoldering IronCircuit BoardFoilRosinSoldering iron positionedincorrectly.
-4-ASSEMBLE COMPONENTS TO THE PC BOARDFigure CInsert the IC socket intothe PC board with thenotch in the directionshown on the top legend.Solder the I
-5-1. Thread the buzzer wires through the hole (near C7)from the component side of the PC board as shownin Figure E.2. Solder the wire from the outer
-6-SCHEMATIC DIAGRAMOPERATING INSTRUCTIONSTurn the switch on. The LEDs will randomly blink and the three melodies will begin to play.TROUBLESHOOTINGCo
QUIZ1. The main component of the Electronic Christmas Tree is the ___________ IC.2. There are __________ 555 timers used in our circuit.3. The LED lig
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