Daystrom Heathkit IP-22 Assembly Manual page 12

Isolation
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Page 10
Refer to Pictorial 2 f o r the following steps.
( )
Temporarily hold the transformer chassis
against the front panel s o that i t s four mount-
ing holes line up with those in the front panel,
(See Detail 4A on Page 13.) Now draw an
outline of the transformer chassis mounting
a r e a on the front panel. This a r e a should be
kept clear of wiring in the following steps.
NOTE: Use the #18 hookup wire to make the
following connections. When preparing a length
of hookup wire, s t r i p 1/4" of insulation from each
end.
( )
Connect an 8" wire from lug Zof fuse holder
J (S-1) to lug 1 of toggle switch
K
(S-1).
( )
Connect one end of a 16" wire to lug 2 of
toggle switch
K
(S-1). D r e s s this wire be-
tween switch G and the edge of the front
panel a s shown. Leave the end free.
( )
Connect one end of a 16" wire to lug 1 of
fuse holder J (S-1). D r e s s a s shown and
leave the end free.
NOTE: When connecting wires to lugs 2, 3, 4,
and 5 of slide switch E, wrap the f i r s t wire
around the lug and connect the second wire to
the hole in the lug.
( )
Connect a 4-1/4" wire from lug 4 of slide
switch E (NS) to lug C of switch F (S-1).
( )
Connect a 3" wire from lug 2 of slide switch
E (NS) to lug C of switch G (S-1).
( )
Connect one end of a 10- 1/2" wire to lug 2
of slide switch E (S-2). D r e s s in the direc-
tion shown and leave the end f r e e tempo-
rarily.
( )
Connect one end of an 11-1/2" wire to lug 4
of slide switch E (S-2). D r e s s in the
direction shown and leave the end f r e e
temporarily.
( )
Connect one end of a 16" wire to lug 5 of
slide switch E (NS). D r e s s a s shown and
leave the end free.
( )
Connect one end of a 16" wire to lug 3 of
slide switch E (NS). D r e s s a s shown and
leave the end free.
( )
Connect one end of a 6" wire to lug 6
of slide switch E (S-1). Dress this wire
perpendicular to the front panel and leave
the other end free.
( )
Connect one end of a 7" wire to lug 1 of
slide switch E (S-1). D r e s s this wire per-
pendicular to the front panel and leave the
other end free.
( )
Cut both pilot light leads to 2" long, s t r i p
1/4" of insulation from the end of each
lead, and tin the ends. ("Tin" means to
melt a small amount of solder over the
exposed wire ends.)
( )
Connect either pilot light lead to lug5 of
slide switch E (S-2).
( )
Connect the other pilot light lead to lug 3 of
slide switch E (S-2).
( )
Connect one end of a 4-1/2" wire to lug 1
of the meter (S-1). Leave the other end
free.
( )
Connect one end of a 5-1/4" wire to lug 2
of the meter (S-1). Leave the other endfree.
( )
Connect one end of a 10- 1/2" wire to the
solder lug of binding post C (S-1). Leave
the other end free.
J
Detail 2A
&
( )
Prepare a 3-3/4" hookup wire and solder a
spade lug to one end a s shown in Detail 2A.
( )
Place the spade lug under screw 3 of AC
receptacle B and tighten. Connect the other
end of this wire to the solder lug of binding
post D (NS).
( )
P r e p a r e a 2- 1/2" hookup wire and solder a
spade lug to one end.
( )
Place the spade lug under screw 3 of AC
I
receptacle A and tighten. Connect the other
end of this wire to the solder lug of binding
post D (S-2).
( )
Prepare a 4" hookup wire and solder a spade
lug to one end. Now solder a spade lug to
both the other end of this wire and to the
f r e e end of the wire coming from lug 2 of
slide switch E.

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