Elenco Practical Soldering Project Kit Manual do Utilizador Página 1

SOLDER PRACTICE KITMODEL SP-1AAssembly and Instruction ManualCopyright © 2012, 1994 by Elenco®Electronics, Inc. All rights reserved. Revise

-9-The solder practice kit consists of a circuit oscillatingat one hertz (one cycle per second). The oscillatorconsists of two transistors Q1 and Q2,

-10-CONSTRUCTIONSolderSoldering IronFoilSolderSoldering IronFoilComponent LeadSoldering IronCircuit BoardFoilRosinSoldering iron positionedincorrectly

-11-Figure BElectrolytic capacitors have polarity.Be sure to mount them with thenegative (–) lead (marked on side) inthe correct hole.Warning: If the

-12-Figure HMount the LED onto the PC boardwith the flat side of the LED in thesame direction as marked on the PCboard. Be sure to mount the LEDflush

-13-If any parts are missing or damaged, see instructoror bookstore. DO NOT contact your place ofpurchase as they will not be able to help you.Contac

-14-WORD GLOSSARYCapacitor An electrical component that canstore electrical pressure (voltage)for periods of time.Cold Solder Joint Occurs because ins

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PARTS LISTIf you are a student, and any parts are missing or damaged, please see instructor or bookstore.If you purchased this kit from a distributor,

-2-Warning:If the capacitor isconnected withincorrect polarity, itmay heat up andeither leak, orcause the capacitorto explode.IDENTIFYING RESISTOR VAL

-3-RESISTOR READING EXERCISEBefore starting assembly of your solder practice project, you should be thoroughly familiar with the 4-band colorcode syst

Almost every electronic device today has a printedcircuit board. Whether you are assembling a PC boardor repairing it, you must understand the basics

-5-Types of Soldering DevicesA number of different types of soldering devices:irons, guns and stations are available today. Ironsare used for light t

-6-Double PadsBefore we begin to assemble and solderthe components to the solder practicePC board, we will start first by practicesoldering to the dou

-7-Hairline CracksThe hairline cracks can develop in the copper foil ifthe PC board is flexed. This can be easily repairedby making a solder bridge a

-8-Desoldering wick is a braided wire coated with non-corrosive rosin flux. It is the simplest and safest toolfor removing solder from a solder conne