When replacing components with multiple mounting pins such as tube sockets
,
electrolyt
i
c capacitors
,
and
potentiometers , it will be necessary to lift each pin slightly, working around the components several times
until it is free.
WARNING: If the specific instructions outlined in the steps below regarding etched circuit boards without
eyelets are not followed, extensive damage to the etched circuit board will result.
l.
Apply heat sparingly to lead of component to be replaced. If l
e
ad
.
of cornponent passes through an eyelet
in th
e
cir
c
uit board, apply heat on cornponent sid
e
of board. If lead of component does not pas
s
through
an
e
y
e
l
e
t
,
apply heat to conductor side of board.
2.
Reheat solder in vacant eyel
e
t and qui
c
kl
y
insert a small awl to clean insid
e
of hole. If hole does not have
an eyelet, ins
e
rt awl or a #57 drill from conductor side of board.
3.
Bend clean tinned leads on new part and carefully insert through eyelets or holes in board.
4.
Hold part against board (avoid overheating) and solder leads. Apply heat to component leads on correct side
of board as explained in step 1
.
In the event that either the circuit board has be en damaged or the conventional method is impracti
c
al
,
use
method shown below. This is especially applicable for circuit boards without eyelets.
1.
Clip l
e
ad as shown below, Bend protruding leads up wa rd. Bend lead of new component around protruding
Ie
a
d, Appl
y
solder using a pair of long nos
e
pliers as a heat sink.
This pro
c
edur
e
i
s
us
e
d in the field only as an alternate means of repair. It is not used within th
e
factory.