Elenco Digital / Analog Trainer Manual do Utilizador Página 1

DIGITAL / ANALOG TRAINERMODEL XK-150A COMPLETE MINI-LAB FOR BUILDING,TESTINGAND PROTOTYPING ANALOG AND DIGITAL CIRCUITSElenco Electronics, Inc.Instruc

The XR-2206 is comprised of four functional blocks, a voltagecontrolled oscillator (VCO), an analog multiplier & sine shaper, aunity gain buffer a

-10-SCHEMATIC DIAGRAM

Elenco Electronics, Inc.150 W. Carpenter AvenueWheeling, IL 60090(847) 541-3800http://www.elenco.come-mail: [email protected]

Qty Description Part #1 Transformer 4401111 PC Board digital 5140001 PC Board analog 5140012 PC Board 1k, 100k POT 5140021 Fuse .25A 5310059 Switch Sl

GENERAL SPECIFICATIONS FOR MODEL XK-150Power Supplies:• +1.25V to 15VDC @ .25 amp• -1.25 to -20VDC @ .25 amp • +5V +5% @ .5 amp• 30V AC center tapped

-3-USERS DESCRIPTION OF FRONT PANEL CONTROL1) 1kΩ undedicated potentiometer.2) Output Terminals for 1kΩ undedicated potentiometers.3) Output Terminals

-4-INTRODUCTIONCongratulations on your purchase of the Elenco Model XK-150 Digital / Analog Trainer. This trainer is designedto simplify designing of

-5-TESTING THE XK-150 DIGITAL ANALOG TRAINERThe following paragraphs give detailed instructions on testing the digital / analog trainer.Note that in t

-6-TESTING THE LOGIC INDICATOR FUNCTIONThere are eight logic indicators which you will be testing. Place a wire to the 5V terminal and touch the “0”

AC TO DC CONVERTERThe AC to DC converter consists of diodes D1, D2 and capacitor C1. Transformer T1 has two secondarywindings which are 180 degree out

-8-Transistor Q5 is called the pass transistor. It controls the current reaching the output. Transistor Q3 and Q4 areemitter followers. Their functio