Elenco Electronics K-23 Assembly And Instruction Manual
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Elenco Electronics K-23 Assembly And Instruction Manual

Elenco Electronics K-23 Assembly And Instruction Manual

Burglar alarm kit
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BURGLAR ALARM KIT
MODEL K-23
Assembly and Instruction Manual
Elenco
®
Electronics, Inc.
Copyright © 2004, 1989 Elenco
®
Electronics, Inc.
Revised 2004
REV-O
753223
No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.

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Summary of Contents for Elenco Electronics K-23

  • Page 1 BURGLAR ALARM KIT MODEL K-23 Assembly and Instruction Manual Elenco ® Electronics, Inc. Copyright © 2004, 1989 Elenco ® Electronics, Inc. Revised 2004 REV-O 753223 No part of this book shall be reproduced by any means; electronic, photocopying, or otherwise without written permission from the publisher.

  • Page 2: Parts List

    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 mail 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.

  • Page 3: Power Supply

    IDENTIFYING RESISTOR VALUES Use the following information as a guide in properly identifying the value of resistors. BAND 1 1st Digit Color Bands Black Multiplier Brown Tolerance Orange Yellow Green Blue Violet Gray White IDENTIFYING CAPACITOR VALUES 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.

  • Page 4: External Alarm

    When we place a voltage to the gate, a current will flow between the anode and cathode turning ON the alarm buzzer. If we remove the voltage on the gate, the current will continue to flow in the SCR. ACTIVATING SWITCHES There are two types of activating switches, the normally open (N.O.) contacts and normally closed (N.C.) contacts.
  • Page 5 CONSTRUCTION Introduction The most important factor in assembling your K-23 Burglar Alarm Kit is good soldering techniques. Using the proper soldering iron is of prime importance. recommended. The tip of the iron must be kept clean at all times and well tinned.
  • Page 6 ASSEMBLE COMPONENTS TO THE PC BOARD A1 - Buzzer (see Figure A) C1 - 47µF Electrolytic Cap. (see Figure B) SCR1 - SCR (106B1) D1 - 1N4001 Diode (see Figure D) R2 - 39kΩ 5% 1/4W Resistor (orange-white-orange-gold) C2 - .1µF (104) Mylar Cap. D2 - 1N4001 Diode (see Figure D) Figure A...

  • Page 7: Testing Instructions

    Reconnect the wires to S2, the buzzer should still be on. Turn off S1 to reset the alarm. 5. If your K-23 does not operate properly, follow the troubleshooting procedure below. 2. Be sure that all components have been mounted in their correct places.

  • Page 8: Auto Alarm

    AUTO ALARM You will not mount parts A1, B1 or S1. When someone opens a door or tries to remove the radio, the alarm is activated and the car horn will sound (see schematic diagram below). Connect to your car as follows. See diagram below. Connect P4 to the wire running from the door switch to the dome light.

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