Under-Chassis Wiring - Heathkit SB-220 Assembly And Operation Manual

Page 46
UNDER-CHASSIS WIRING
Refer to Pictorial 4 9 and cut the transformer leads coming
through the chassis a t Y, AH and AK to the indicated
lengths. Be sure you have selected the proper location before
you cut. Measure the length of each lead from the chassis.
(4
A t grommet Y, cut the transformer leads as follows:
blue 4112"
Yellow 9-1 12"
Black 4 1 12"
Black-red 9-1 12"
Black-Yellow 9-1 12"
Black-Green 4-314"
(4"
At grommet AH, cut the transformer leads as follows:
Green 6-1 12"
Green-Yellow 7-114"
Green 5-314"
(
J
1
At grommet AK, cut the transformer leads as follows:
One red 4-1 12"
Other red 4"
Black-Red 3-314"
Black-Yellow 3-314"
Black 3-1 12"
Black-Green Do not cut
i
i
1
NOTE: When you remove insulation from transformer leads
I
in the following steps, grasp the wires where they emerge
from the chassis so no strain will be placed on the
connections at the transformer end of the leads.
PICTORIAL 4-9
Remove 114" of insulation from the cut ends of the
two heavy green leads coming from AH. Melt a=
amount of solder on the bared wire ends.
(dl
Remove 114" of insulation from the end of each
remaining transformer lead. Twist the fine wire strands
together and melt a
small
amount of solder on each
bared end.