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Sq
searunit
ALIGN SOCKET PINS WITH
MOUNTING
HOLES
Qs
The
actual
technique
of soldering
leads to a
circuit board
is quite simple.
Position the tip
of the soldering
iron so that it firmly contacts
both the circuit board foil and the wire or lug
to be soldered,
as shown,
The
iron should be
held so that solder
is not likely to flow to ad-
jacent foil conductors or connections. The solder
should
immediately be placed between the iron
and the joint to be soldered, Remove the length
of solder as soon as its end begins to melt and
flow onto the lead and foil. Hold the tip of the
iron in place only until the solder begins to flow
outward
over
the foil;
then
remove
the iron
quickly,
Avoid overheating the connection,
A soldering
pencil or small iron (approximately 30 watts)
is ideal for use
in circuit board
work, If only
a high wattage
iron or soldering gun is avail-
able, precautions must be taken to avoid circuit
board
damage
due
to overheating
and excess
solder,
The
use
of excessive
amounts
of solder
will
PLACE PINS INTO
MOUNTING HOLES
MAKE SURE HOOKS ARE
ON
BOARD
SEATED IN HOLES
BEFORE PRESSI
Page 11
APPLY PRESSURE EVENLY
UNTIL
SOCKET
1S TIGHT
increase the possibility of bridging between foil
conductors
or plugging holes
which are to be
left open for wires
which
may
be added
later
on,
If solder
is accidentally
bridged
across
insulating
areas
between
conductors,
it can be
cleaned off by heating the connection carefully
and quickly wiping or brushing the solder away
with a soft cloth or clean brush, Holes which
become
plugged can be cleared by heating the
area
immediately
over
the
hole while gently
pushing the lead of a resistor through the hole
from
the
opposite
side,
and
withdrawing the
lead before the solder rehardens, Do not force
the lead through; too much pressure before the
solder
has
time
to soften
may
separate the
foil from the board,
In cases
where foil does become damaged, re-
pairs
can usually be made with little difficulty.
A break in the foil can be rejoined with a small
piece of bare wire soldered across the gap, or
between the foil and the lead of a component,
"Hairline"
breaks
can usually be repaired
by
bridging them with a small amount of solder.
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