Elenco Surface Mount Generator Kit User Manual

FUNCTION GENERATOR KIT

MODEL FG-600K

Assembly and Instruction Manual

Copyright © 2014, 1999 by ELENCO®All rights reserved. Revised 2014 REV-F 753033

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

ELENCO

®

PARTS LIST

If any parts are missing or damaged, see instructor or bookstore. DO NOT contact your place of purchase as
they will not be able to help you. Contact ELENCO®(address/phone/e-mail is at the back of this manual) for
additional assistance, if needed.

RESISTORS

Qty. Symbol Description Part #

! 1 R2 10kΩ Potentiometer 192531
! 1 R3 100kΩ Potentiometer 192612
! 1 R6 (201) Resistor chip 200Ω 5% 1/8W 196320
! 1 R1 (621) Resistor chip 620Ω 5% 1/8W 196362
! 1 R5 (392) Resistor chip 3.9kΩ 5% 1/8W 196434
! 1 R7 (822) Resistor chip 8.2kΩ 5% 1/8W 196484
! 1 R8 (103) Resistor chip 10kΩ 5% 1/8W 196514
! 1 R4 (223) Resistor chip 22kΩ 5% 1/8W 196522
! 1 R9 (104) Resistor chip 100kΩ 5% 1/8W 196614

CAPACITORS

Qty. Symbol Value Description Part #

! 1 C6 820pF Capacitor chip 228297
! 1 C5 0.01µF Capacitor chip 241095
! 1 C4 0.1µF Capacitor chip 250195
! 1 C3 1µF Electrolytic chip 260127
! 3 C2, C7, C8 10µF Electrolytic chip 271024
! 1 C1 100µF 16V Electrolytic radial 281044
! 1 C9 1000µF 16V Electrolytic radial 291044

SEMICONDUCTORS

Qty. Symbol Value Description Part #

! 1 U1 XR-2206 Integrated circuit, surface mount 332206SM

MISCELLANEOUS

Qty. Description Part #

! 1 PC board FG-600 511002
! 2 Switch slide PC mount (S2, S3) 541009
! 1 Switch rotary 2p 6 pos. (S1) 542207
! 1 Battery snap 9V 590098
! 1 Battery holder 9V 590099
! 3 Knob 622009
! 1 Case, top 623061
! 1 Case, bottom 623062
! 1 Binding post black 625031
! 3 Hex nut for binding post 625031HN
! 3 Lockwasher binding post 625031LW

Qty. Description Part #

! 2 Binding post yellow 625034
! 4 Screw 2.8 x 8mm 641102
! 2 7mm Hex pot nut 644101
! 1 9mm Hex switch nut 644102
! 2 8mm x 14mm Flat washer 645101
! 1 9mm x 15mm Flat washer 645103
! 4 Feet, rubber 662015
! 1 Label, top 721009
! 1 Tape, double-sided 3/4” x 3/4” 740020
! 12” Wire 22ga. black solid 814120
! 1 Solder, lead-free 9LF99

-1-

-2-

PARTS VERIFICATION

Before beginning the assembly process, familiarize yourself with the components and this instruction book.
Verify that all of the parts are present. This is best done by checking off the parts in the parts list.

RESISTORS CAPACITORS SEMICONDUCTOR

Electrolytic

(radial)

Potentiometer

Knob

MISCELLANEOUS

PC board

Case top

Case bottom

Screws

2.8 x 8mm

7mm

Nuts Washers

Flat

8 x 14mm

Rubber foot

Label

Lead-free solder

Battery snap

Black wire 22ga.

Double-sided tape

XR-2206 Integrated

circuit (IC)

Rotary switch

DPDT switch

Binding posts

Black Yell ow

Binding post nut

Binding post

lockwasher

Battery holder

9mm

Flat

9 x 15mm

621

Chip

Chip

Electrolytic chip

-3-

INTRODUCTION

Assembly of your FG-600 Function Generator will prove to be an exciting project and give much satisfication
and personal achievement. The FG-600 contains a complete function generator capable of producing sine,
square and triangle wave forms. The frequency of this generator can be contiuously varied from 1Hz to 1MHz
in 6 steps. A fine frequency control makes selection of any frequency in between easy. The amplitude of the
wave forms are adjustable from 0 to 3Vpp. This complete function generator system is suitable for
experimentation and applications by the student. The entire function generator is comprised of a single XR-2206
monolithic IC and a limited number of passive circuit components.
The FG-600 uses surface mounted components. By building this kit, you will obtain an interesting electronic
device and also gain valuable experience in surface mount technology.

SPECIFICATIONS

OUTPUT:

● Waveforms: Sine, Triangle, Square

● Impedance: 600Ω + 10%.

● Frequency: 1Hz - 1MHz in 6 decade steps with variable ranges.

SINE WAVE:

● Amplitude: 0 - 3Vpp.

● Distortion: Less than 1% (at 1kHz).

● Flatness: +0.05dB 1Hz - 100kHz.

SQUARE WAVE:

● Amplitude: 8V (no load).

● Rise Time: Less than 50ns (at 1kHz).

● Fall Time: Less than 30ns (at 1kHz).

● Symmetry: Less than 5% (at 1kHz).

TRIANGLE WAVE:

● Amplitude: 0 - 3Vpp.

● Linearity: Less than 1% (up to 100kHz).

POWER REQUIREMENTS:

● Standard 9V Battery

OPERATING TEMPERATURE:

● 0OC TO 50OC.

PARTS VERIFICATION

Before beginning the assembly process, familiarize yourself with the components and this instruction book.
Verify that all parts are present. This is best done by checking off each item against the parts list.

Care must be taken when handling the chip resistors and capacitors.
They are very small and are easily lost. Chip resistors are marked
with their component value. The first 2 digits are the first 2 digits of
the resistance in ohms. The last digit gives the number of zeros
following the first 2 digits. The resistor shown at right is therefore
3900Ω.

The values of the chip capacitors are not marked on the component.
The chip capacitor C6 (820pF) is in the bag with the chip resistors,
the chip capacitor C5 (0.01µF) is in the bag with the lytic capacitors
and the chip capacitor C4 (0.1µF) is in the bag with the IC. To avoid
mixing these parts up, they should not be taken out of their packages
until just before they are soldered to the PC board.

-4-

CONSTRUCTION

Solder

Soldering Iron

Foil

Solder

Soldering Iron

Foil

Component Lead

Soldering Iron

Circuit Board

Foil

Rosin

Soldering iron positioned
incorrectly.

Solder

Gap

Component Lead

Solder

Soldering Iron

Drag

Foil

1. Solder all components from the
copper foil side only. Push the
soldering iron tip against both the
lead and the circuit board foil.

2. Apply a small amount of solder to
the iron tip. This allows the heat
to leave the iron and onto the foil.
Immediately apply solder to the
opposite side of the connection,
away from the iron. Allow the
heated component and the circuit
foil to melt the solder.

1. Insufficient heat - the solder will

not flow onto the lead as shown.

3. Allow the solder to flow around
the connection. Then, remove
the solder and the iron and let the
connection cool. The solder
should have flowed smoothly and
not lump around the wire lead.

4.

Here is what a good solder
connection looks like.

2. Insufficient solder - let the

solder flow over the connection
until it is covered.
Use just enough solder to cover
the connection.

3. Excessive solder - could make

connections that you did not
intend to between adjacent foil
areas or terminals.

4. Solder bridges - occur when

solder runs between circuit paths
and creates a short circuit. This is
usually caused by using too
much solder.
To correct this, simply drag your
soldering iron across the solder
bridge as shown.

What Good Soldering Looks Like

A good solder connection should be bright, shiny, smooth, and uniformly
flowed over all surfaces.

Types of Poor Soldering Connections

Introduction

The most important factor in assembling your FG-600 Function
Generator Kit is good soldering techniques. Using the proper soldering
iron is of prime importance. A small pencil type soldering iron of 25 watts
is recommended. The tip of the iron must be kept clean at all times

and well-tinned.

Solder

For many years leaded solder was the most common type of solder
used by the electronics industry, but it is now being replaced by lead­free solder for health reasons. This kit contains lead-free solder, which
contains 99.3% tin, 0.7% copper, and has a rosin-flux core.

Lead-free solder is different from lead solder: It has a higher melting
point than lead solder, so you need higher temperature for the solder to
flow properly. Recommended tip temperature is approximately 700OF;
higher temperatures improve solder flow but accelerate tip decay. An
increase in soldering time may be required to achieve good results.
Soldering iron tips wear out faster since lead-free solders are more
corrosive and the higher soldering temperatures accelerate corrosion,
so proper tip care is important. The solder joint finish will look slightly
duller with lead-free solders.

Use these procedures to increase the life of your soldering iron tip when
using lead-free solder:

• Keep the iron tinned at all times.

• Use the correct tip size for best heat transfer. The conical tip is the
most commonly used.

• Turn off iron when not in use or reduce temperature setting when
using a soldering station.

•

Tips should be cleaned frequently to remove oxidation before it becomes
impossible to remove. Use Dry Tip Cleaner (Elenco®#SH-1025) or Tip
Cleaner (Elenco®#TTC1). If you use a sponge to clean your tip, then use
distilled water (tap water has impurities that accelerate corrosion).

Safety Procedures

• Always wear safety glasses or safety goggles to
protect your eyes when working with tools or
soldering iron, and during all phases of testing.

• Be sure there is adequate ventilation when soldering.

•

Locate soldering iron in an area where you do not have to go around
it or reach over it. Keep it in a safe area away from the reach of
children.

• Do not hold solder in your mouth. Solder is a toxic substance.
Wash hands thoroughly after handling solder.

Assemble Components

In all of the following assembly steps, the components must be installed
on the top side of the PC board unless otherwise indicated. The top
legend shows where each component goes. The leads pass through the
corresponding holes in the board and are soldered on the foil side.

Use only rosin core solder.

DO NOT USE ACID CORE SOLDER!