Elenco Electronics SP-3B Manuel d'instructions

SOLDER PRACTICE KITMODEL SP-3BAssembly and Instruction ManualCopyright © 2012, 2001 by Elenco®Electronics, Inc. All rights reserved. Revise

What Good Soldering Looks LikeA good solder connection should be bright, shiny,smooth, and uniformly flowed over all surfaces.Soldering a PC board1. S

PC BOARD ASSEMBLYSolder the following parts to the PC board.Resistance Testing #1 (If you do not have a meter, continue to page 11)You will test the s

189U1 - 16-pin IC Socket(see Figure C)R14 - 27kΩ 5% ¼W Resistor(red-violet-orange-gold)(see Figure D)R13 - 18kΩ 5% ¼W Resistor(brown-gray-orange-gold)

Figure GMount the LED onto the PC board withthe flat side of the LED in the samedirection as marked on the PC board.Figure H Mount the IC with the fla

-13-If you are a student, and any parts are missing ordamaged, please see instructor or bookstore. If youpurchased this solder practice kit from a di

-14-WORD GLOSSARY (continued)Resistor Component used to control the flow of electricity in a circuit. It is made of carbon.Rosin Core Solder The most

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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-IntroductionThe most important factor in assembling your SP-3BSolder Practice Kit is good soldering techniques.Using the proper soldering iron is o

-4-Types of Soldering DevicesA number of different types of soldering devices:irons, guns and stations are available today. Ironsare used for light t

Soldering IronDrag IronSolder BridgesPC BoardFigure 6Double PadsBefore we begin to assemble and solderthe components to the solder practicePC board, w

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

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

-8-SCHEMATIC DIAGRAMThe solder practice kit consists of a circuit oscillatingat one hertz (one cycle per second). The oscillatorconsists of two transi