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SOLDER PRACTICE KIT

MODEL AK-100 / SP-1A

Assembly and Instruction Manual

Copyright © 2004, 1994 by Elenco

®

Electronics, Inc.  All rights reserved.            Revised 2004       REV-I

752601

No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.

Elenco

®

Electronics, Inc.

Summary of Contents for AK-100

Page 1: ...on Manual Copyright 2004 1994 by Elenco Electronics Inc All rights reserved Revised 2004 REV I 752601 No part of this book shall be reproduced by any means electronic photocopying or otherwise without...

Page 2: ...152200 1 R5 47k 5 1 4W yellow violet orange gold 154700 2 R4A R6A 56k 5 1 4W green blue orange gold 155600 1 VR1 200 Trim Pot 191321 CAPACITORS Qty Symbol Value Description Part 2 C4 C5 02 F 203 or 02...

Page 3: ...r actual value printed on them Some capacitors may have their value printed in the following manner The maximum operating voltage may also be printed on the capacitor Second Digit First Digit Multipli...

Page 4: ...se in resistor values Place your answer in the box beneath the resistor Answers are on the bottom of this page 1 brown green red gold 3 brown black yellow gold 5 yellow violet brown gold 7 yellow viol...

Page 5: ...ratio of tin to lead The most common ratios are 63 37 60 40 and 50 50 The first number indicates the amount of tin and the second is lead A 60 40 solder has 60 tin and 40 lead Solder with a greater ti...

Page 6: ...ves to the heating element if left in place for extended periods of time Periodic removal of the tip is therefore advisable Tip Cleaning A good clean solder tip makes soldering much easier The tip sho...

Page 7: ...he iron tip with a wet sponge to remove the solder You can also use solder wick as described on page 7 Solder Resist The PC board is covered with solder resist over areas that are not to be soldered T...

Page 8: ...procedure four more times Wide Gaps For wider gaps in a copper foil a solder bridge can not be used A small wire would be used to bridge the copper as shown in Figure 11 Six bridges will be made acro...

Page 9: ...the iron and wick are removed the solder should be removed You need to repeat the process if some solder remains If necessary repeat the procedure until all of the unwanted solder is removed After th...

Page 10: ...causing Q1 or Q2 to conduct The output will be a square wave The frequency is determined by the time constants of resistor R6 and capacitor C1 also R4 and C2 Two LED diodes are placed in the collecto...

Page 11: ...o cover the connection 3 Excessive solder could make connections that you did not intend to between adjacent foil areas or terminals Heat Sinking Electronic components such as transistors IC s and dio...

Page 12: ...Electrolytic capacitors have polarity Be sure to mount them with the negative lead marked on side in the correct hole Figure A Solder the Red Positive lead of the battery snap to the hole marked on t...

Page 13: ...d see Figure E R4 22k 5 W Resistor red red orange gold see Figure E C4 02 F or 022 F Discap C1 10 F Electrolytic Lytic see Figure B R1 470 5 W Resistor yellow violet brown gold see Figure E Jumper Wir...

Page 14: ...Q2 for shorts Remember that there are two oscillators If no sound comes out of the speaker but the LED flashes alternately then the 555 timer is not working Be sure that the volume control is at maxi...

Page 15: ...of two opposing forces or properties Printed Circuit Board A board used for mounting electrical components Components are connected using metal traces printed on the board instead of wires Resistor Co...

Page 16: ...soldering D oxidizing 5 Proper solder adhesion requires that the metal surface to be A solder free B clean C greasy D cold 6 Solder wick is used to A remove solder B solder in small parts C cleaning t...

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