DELUXE ELECTRONIC SOLDERING STATION KIT MODEL SL-5K MODEL SL-5K-40 MODEL SL-5K-SPL Assembly and Instruction Manual Elenco Electronics, Inc. ® Copyright © 2010, 2000 by Elenco® Electronics, Inc. All rights reserved. Revised 2010 REV-E No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.
SOLDERING STATION KIT MODELS These instructions are for the following electronic soldering stations. The model number of the electronic soldering station that you have received, is marked on the end of the carton. Model SL-5K is supplied without an iron. Model SL-5K-40 is supplied with a 40 watt soldering iron, grounded plug, Model SR-6. Model SL-5K-SPL is custom packaged with an iron of your choice of 25 to 60 watts, and other soldering aids.
INTRODUCTION TO SOLDERING Flux Almost every electronic device today has a printed circuit board. Whether you are assembling a PC board or repairing it, you must understand the basics of working with these boards. Most solder contains flux in the hollow core of the solder allowing it to be applied automatically when you heat the solder. The flux will remove any oxide film on the metals soldered creating a good metal-tometal contact. This is called “wetting the metal”.
Types of Soldering Devices Tip Cleaning A number of different types of soldering devices: irons, guns and stations are available today. Irons are used for light to medium work and guns are for medium to heavy-duty work. The station type can range from light to heavy-duty For working on PC boards, irons ranging from 15 to 40 watts are suitable, or a station with a range of 15 to 40 watts. If you use an iron with a higher wattage rating than 40 watt, you may damage the copper tracks on the PC board.
SOLDERING A poorly soldered joint can greatly affect small current flow in circuits and can cause equipment failure. You can damage a PC board or a component with too much heat or cause a cold solder joint with insufficient heat. Sloppy soldering can cause bridges between two adjacent foils preventing the circuit from functioning. What Good Soldering Looks Like Types of Poor Soldering Connections A good solder connection should be bright, shiny, smooth, and uniformly flowed over all surfaces. 1.
Heat Sinking Electronic components such as transistors, IC’s, and diodes can be damaged by the heat during soldering. Heat sinking is a way of reducing the heat on the components while soldering. Dissipating the heat can be achieved by using long nose pliers, an alligator clip, or a special heat dissipating clip. The heat sink should be held on the component lead between the part and the solder joint.
CIRCUIT OPERATION Anode P N P N THYRISTOR A thyristor is a controlled silicon diode which is not conductive in the reversed direction. It will only conduct in the forward direction when they are triggered by short pulse or steady voltage applied between the gate and cathode terminals (see Figure 8). A thyristor family of semiconductors consists of several useful devices. The most commonly used are silicon-controlled rectifiers (SCR), triacs, and diacs.
PARTS LIST If you are a student, and any parts are missing or damaged, please see instructor or bookstore. If you purchased this kit from a distributor, catalog, etc., please contact Elenco® Electronics (address/phone/email is at the back of this manual) for additional assistance, if needed. DO NOT contact your place of purchase as they will not be able to help you. RESISTORS Qty.
IDENTIFYING RESISTOR VALUES IDENTIFYING CAPACITOR VALUES Use the following information as a guide in properly identifying the value of resistors. Capacitors will be identified by their capacitance value in pF (picofarads), nF (nanofarads), or μF (microfarads). Most capacitors will have their actual value printed on them. Some capacitors may have their value printed in the following manner.
SWITCH ASSEMBLY Apply the front label to the case as shown in Figure F. Slip the 3/4” dia. shrink tubing over the line cord as shown in Figure I. Solder a 4” white wire to lug #3 as shown in Figure G. Solder the black line cord wire to the #2 lug as shown in Figure I. Make sure the tubing is away from the soldering iron, so it will not shrink. Solder a 4” black wire to lug #1 as shown in Figure G. Insert the switch into the opening on the front as shown in Figure H.
AC RECEPTACLE ASSEMBLY Type A Back of AC Receptacle Cut the 2”, 1/4" dia. shrink tubing into two 1” pieces. 2 Determine which type of AC receptacle you received in your kit (type A or B). Solder a 4” red wire to lug #2 as shown in Figure K. Snap the AC receptacle into the opening on the back as shown in Figure L. Insert the line cord strain relief into the case as shown in Figure L. 1 3 4” Red Wire Type B Back of AC Receptacle Slide one piece of the 1/4” dia.
SOLDERING WIRES TO THE PC BOARD (see Figure N) Solder the black wire from the switch to point A on the PC Board. Solder the red wire from the AC receptacle to point B on the PC Board. Remove the ground screw on the AC receptacle. Place the lug on the green wire from the line cord under the screw and tighten it. Red Wire from AC Receptacle to point B Green Wire from Line Cord Figure N Black Wire from Switch to point A TESTING (see Figure O) If you do not have a multimeter continue to page 12.
Check your wiring if your readings are different. Measure the resistance from pin #1 of the plug to pin 1 of SCR on the PC board as shown in Figure P. Switch set to OFF Infinite Switch set to ON less than 1Ω Measure the resistance from pin 2 of SCR on the PC Board to pin #2 (Hot Side) of the AC receptacle as shown in Figure Q. It should be less than 1Ω. Measure the resistance from pin #2 of the plug to pin #1 (Neutral side) of the AC receptacle as shown in Figure R. It should be less than 1Ω.
MOUNTING PC BOARD TO CASE Cable Tie Figure T Insert the PC board into the case and then secure the PC board to the case with a washer and nut (see Figure U). Use the cable tie to secure the wires as shown in Figure T. Turn the pot fully counter-clockwise and push on the knob in the position shown in Figure V. Install the tray by pushing down on it until it is flush with the case (see Figure U).
FINAL ASSEMBLY Assemble the iron holder as shown in Figure Y below. Insert the iron holder into the slot on either the right or the left side as shown in Figure Y. Set the power switch to the OFF position. Attach the base to the chassis with four M15 X 4 screws and rubber feet (see Figure W). Apply the bottom label as shown. Apply the back label as shown in Figure X.
VOLTAGE TEST 1/4” If you do not have a multimeter continue to the OPERATION Section. Figure Z Place the iron into the holder. Plug your soldering iron cord into the AC receptacle on the back. Adjust it for a 1/4" gap so you can measure the AC voltage, as shown in Figure Z. Set the temperature control to minimum and plug the SL-5 AC cord into an outlet. Turn the power switch to ON and the switch should illuminate. Measure the voltage across the soldering iron plug as shown in Figure AA.
SCHEMATIC DIAGRAM TIP SIZES The tip sizes and shapes greatly effects the heating and heat-recovery. Today, tips are manufactured in a variety of different shapes (see figure below). The SR-6 comes with a conical shape, (#SR-2BT2) one of the most common. Having a choice of tip styles allows you to choose the one best suited for your soldering needs. Due to the high heat, removable tips can bond themselves to the heating element if left in place for extended periods.
Replacements and Optional Solder Aids for SL-5 Series Solder Station Model SR-6 40W Soldering Iron 1/32” Model SR-2BT2 Conical Tip Model TTC-1 Tip Tinner/Cleaner 1/64” 1/8” 3/64” Model TIPK-1 Tip Kit used with SR-6 & SR-7 Soldering Irons Model SR-2BT Wedge Tip Model SW-3 Desoldering Wick Model SE-1 Solder Ease Kit Model SP-4 Desoldering Pump Model LF-99 Lead-Free Solder Rosin Core .032 dia. 5ft.
EDUCATION KITS Complete with PC Board and Instruction Book Space War Gun 0-15V Power Supply Christmas Tree K-10 K-11 K-14 Rapid fire or single shot with 2 A low-cost way to supply Produces flashing flashing LEDs. voltage to electronic games, colored LEDs etc. and three popular Christmas melodies. Requires 9V battery Requires 9V battery 0-15VDC @ 300mA LED Robot Blinker K-17 You’ll have fun displaying the PC board robot. Learn about free-running oscillators.
QUIZ 1. The solder supplied in this ki is comprised of what two materials? A. Gold and copper B. Tin and copper C. Zinc and copper D. Lead and aluminum 2. What type of flux should be used in electronics? A. Chloride B. Organic C. Rosin D. Corrosive 3. When working on PC boards, what wattage range of iron is ideal? A. 15-40 watts B. 50-100 watts C. 1-10 watts D. 100-200 watts 4. Tinning the soldering tip will prevent it from . . . A. heating. B. melting. C. soldering. D. oxidizing. 5.
