Heath Heathkit SB-104A, Manual

Page: 184 / 204

Page
1-182
GEIS
Detail 12-30A
Ref rto Pictorial 12-30 (Illustration Booklet, Page 13) for
th following steps.
Refer to Detail 12-30A and install a small plastic
grommet in the lateral shield at DR.
Detail 12-30B
S I N G L E
W A F E R
ROTA RY
S W I T C H
%
B E N D THE LARGE P O R T I O N
OF THE GROMMET O V E R A N D
I N T O T H E S M A L L P O R I O N .
P R E S S I T F I R M L Y I N T O PLACE.
P O S I T I O N THE SMALL
P O R I O N OF THE GROMMET
I N T O THE C H A S S I S
H O L E .
I
(
S4: Refer to Detail 12-308 and mount a single wafer
rotary switch at S4 on the lateral shield. Use #4
lockwashers and 4-40 nuts. Be sure to position the
terminals as shown.
Connect the gray wire coming from the control solder
lug at R2 to switch S4 lug 1 (NS).
P:
epare a
2 ..
gray wire. Connect one end of this wire
o switch S4 lug 1 (S-2). The other end will be
onnected later.
Connect the white-red-red wire coming from BO#13
to switch S4 lug 2 (S-1 ).
CA TION: When you wire the following switch, be sure
yo have the color dot in the proper position for each step.
Refer to Detail 12-30C and connect a 21/2" small
bare wire to switch St wafer B from lug 12 (S-1),
against lug 1 1 (S-2), against lug 10 (S-2), and through
lug 9(S-2) to lug 7 (NS). Be sure the color dots on the
edges of the switch wafers are positioned as shown.
The wire should touch lugs 1 1 and 10, go through lug
9, curve around lug 8 (provide at least 1/8 clearance),
and then connect to lug 7. Excepting lug 7, all
connections are soldered.
Connect the white-gray-gray wire coming from BO# 13
to switch S4 lug 3 (S-1 ).
1 - 1 / 2
GRAY
Detail 12-30C
S O L D E R