Manual
-27-
Until now, in addition to the wiring sequences you have
had drawings to help guide you in the wiring connections.
The rest of the projects will have just the schematic
d
iagram without the circuit drawings.
A schematic diagram is like a road map but it is used for
e
lectronic circuits. It shows you how different parts
connect together and how electricity flows through a
circuit. Electronics engineers and technicians use
schematics to help guide them through circuits.
You don’t need to build your circuits from the schematic
diagrams by themselves. We have added the number of
terminals to where you will be making the wiring
connections on each schematic, to help you out - a line
between numbers on the schematic means that you
should connect a wire between those terminals in your
kit. Every part in your kit has a schematic symbol all of its
own. At the beginning of this manual you will find a
picture of each part with its schematic symbol as well as
a short description.
As you will start to notice, the schematics have some
lines that cross each other and that there is a dot at the
crossing point. This means that the two wires which are
r
epresented by the lines, are to be connected at the point
where the dot is located (you will find the terminal number
next to the dot). If there is not a dot where the lines cross,
this means that the wires do not connect (you won’t see
a terminal number if the wires don’t cross).
Lines Are Connected / Lines Not Connected
The schematic diagrams will look confusing at first but
they are simple once you have some practice using
them. Don’t get discouraged if you get confused at first.
You will be constructing circuits in no time by just looking
at the schematic diagrams.
To be able to read schematic diagrams is important for
anyone getting into the field of electronics. Many
electronics books and magazines display intricate circuits
only in schematic form. A schematic is also shorter and
more accurate way to show a circuit rather than a written
form.
A MAJOR CHANGE
EP-130_62315RevC.qxp_EP-130_062812 6/23/15 11:17 AM Page 27