Heath Heathkit SB-104A, Manual

Page: 181 / 204

Page 1-179
r
l"7
S A V E ONE
P I E C E OF
I N S U L A T I O N
d )
f
R E M O V E O U T E R
I N S U L A T I O N O N L Y
I'
+
S H I E L D
Connect the center conductor of the shielded cable
coming from F 1 1 to phono socket CE lug 1 (S-1), and
the shield
wires to lug 2 (S-1).
_,....,,,, . ·
(4connect the center conductor of the shielded cable
coming from G24 to switch S5 lug 2 (S-1). Do not
connect the shield wires yet.
"
( ) Connect the center conductor of the shielded cable
coming from relay RY lug 1 to switch S5 lug 3 (S-1).
Do not connect the shield wires yet.
(YRefer to Detail 12-28A and prepare a 5-1/4" shielded
cable.
T A K I N G C A R E NOT TO C UJ T THE OUTER S H I E L D OF
VERY H I N W I R E S , R E M O V E THE O U T E R I N S U L A T I O N .
S O L D E R
=
_i f
@
P U S H B R A I D B A C K A N D
R E M O V E
I N N E R I N S U L A T I O N
G
5al
.
•
318°
S H E L l
l
P U S H P H O N O P L U G ONTO C A B L E
W I T H S H E L L U N D E R THE B R A I D .
Detail 12-278B
l
Refer to Detail 12-28B and prepare three 1 1 " coaxial
cables as shown. At one end of each cable, carefully
cut the outer insulation completely around the cable
and slide off the 1" length of insulation in one piece.
Save one of these pieces for use later.
Refer to Detail 12-28C and install a phono plug on the
other end of each coaxial cable. Be sure to use plug
#438-46.
COMB OUT THE S H I E L D W I R E S AND T W I S T T H E M T I G H T L Y
T O G E T H E R . R E M O V E 3/8" 0 THE I N N E R I N S U L A T I O N A P P L Y
A S M A L L AMOUNT OF S O L D ER TO THE EN O OF THE S H I E L D
W I R E S AND THE I N N E R L E A D .
U S E ONLY E N O U G H HEAT FOR
THE S O L D E R TO F L O W .
(
( )
Detail 12-28A
onnect the shield wires of the cable coming from sol-
der lug to switch S5 lug 6 ( S - 1 )
Connect the shield wires of the cable coming from G23
to switch S:
1g
5 (S-1).
Connect the center conductor at one end to switch S5
lug 1 (S1), and the shield wires to lug 4 ( S 1 ) . A t the
other end, connect the center conductor to phono
socket CA lug 1 (S1) and the shield wires to lug 2
(NS).
k C3:
Connect the lad marked
+
of a 50
F
(may be
marked 50 MFD) electrolytic capacitor to H5 (S-1/ 4) and
the other lead to phono socket CA lug 2 (NS). Position
this capacitor so no part of its body projects above the
edge of the rear panel.
� Connect the lead from the positive
(+)
marked
end of a 500
F
electrolytic capacitor to J1 (S-1/5)
and connect the other lead to phono socket CA lug 2
(s-3).
( ) nnect the center conductor of the shielded cable
coming from H3 to phone socket CD lug 1 (S1), and
the shiel wires to lug 2 (S-1).
S O L D E R A N D CUT
�OFF E X T RA L E A D .
T R I M OFF B R A I D
A N D S O L D E R TO S H E L
t three 1 1 RG-58A/U coaxial cables. Detail 12-28C