When replacing components with multiple mounting pins such as tube sockets, electrolytic 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 lead .of
cornponent
passes through an eyelet
in the circuit board, apply heat on
corn
ponent side of board. If lead of component does not pass through
an eyelet, apply heat to conductor side of board.
2.
Reheat solder in vacant eyelet and quickly insert a small awl to clean inside of hole. If hole does not have
an eyelet, insert 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 impractical, use
method shown below. This is especially applicable for circuit boards without eyelets.
1.
Clip lead as shown below, Bend protruding leads up wa rd. Bend lead of new component around protruding
Iead, Apply solder using a pair of long nose pliers as a heat sink.
This procedure is used in the field only as an alternate means of repair. It is not used within the factory.
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