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ENG1.TXT
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1997-02-13
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94 lines
ENGINEERING MADE EASY
by I.M. Dorky
Radio Engineering is not as hard as
as people would lead you to believe.
Almost all problems can be traced to
a defect in the circuit board. All of
the standard circuit boards have the
same style components.
A circuit board consists of six
parts. The transformer is where the
power originates. From here the spark
travels along a metallic path to the
various components on the board, until
it reaches the outlet at the end of the
circuit. If anything stands in the way
of the circuit, like a defective part,
the circuit is destroyed, causing the
piece of equipment to blow up.
The job of the engineer is replace
these parts before the electric charge
can reach them. This would be easy, ex-
cept the only way to test the part, is
to actually run power through the
circuit while you are working on it. So
you need to replace the parts while the
current is actually running through the
board, trying to replace parts before
the electric charge reaches them.
With that in mind you need to know
how to fix various components on a cir-
cuit board.
The transformer never malfunctions,
so you can immediately rule out that as
the part that need replaced. The outlet
at the end of the circuit board is also
something that never breaks, so that is
another item that needs no maintenance.
That leaves light bulbs, set screw
assemblies, transistors, and fuses. A
good engineer needs spares of these in
his toolkit. When an item such as the
ones described above go bad, they have
a tendency to take on a reddish color.
You will need to replace these parts by
the time the electron charge reaches
part. If the cherge reaches the part on
the board before it is replaced this is
what will happen.
For the fuse, the electron charge
back up into the main unit, this will
cause an intermittent loop of power in
the main recoil mechanism, and the high
voltage surge will destroy the piece of
equipment.
As for the light bulb, by not being
able to replace it in time, the extra
power races through the board and soon
catches up with it's back end. This can
and usually does cause a fire in the
transformer flux-a-lator. When this oc-
curs the power loop causes instant shut
off of the main board, and the machine
blows up.
When a bad transistor is not fixed
in time, a carbon build up on the ding-
us homper occurs. When a dingus hopper
comes in contact with any amount of
carbon, the reversal of the magnetic
polarity of the lead lined copulator is
is going to occur, when this happens,
you got a major breakdown.
And finally the set screw assembly.
In all piece of equipment, you have the
set screw assembly, what this does is
to set the screw to your assembly. If
the set screw assembly is even a mili-
meter of the screw setting, then your
entire assembly is not set in the right
screw mode. When this occurs the piece
is not set, the assembly is not assem-
bled, however the machine is screwed.
This manual should help you in all
tasks encountered in your role as chief
engineer of a radio station. Remember
if you keep the equipment running, you
keep you job.