Heathkit SB-1000 - Rear Panel

Page 36
Heathkit
STEP-BY-STEP ASSEMBLY
REAR PANEL
Refer to Pictorial 6-1 while you perform the
following steps.
© Position the rear panel as shown in the
Pictorial.
NOTE: When a step calls for hardware, only the
screw size will be given. For example, if a step calls
for "6-32 x 1/4" hardware,” it means you should use a
6-32 x 1/4" screw, one or more lockwashers, and a 6-32
nut at the indicated location. Refer to the illustra-
tion (Pictorial or Detail) for the proper number and
placement of cach hardware item.
() ° J2: Refer to Detail 6-1A and use 4-40 x 3/8” hard-
ware to mount a coaxial socket onto the inside
of the rear panel at J2. Be sure to position the
socket so the open side of the lug is toward the
top of the rear panel.
of Ji: Similarly, use 4-40 x 3/8" hardware to mount
a coaxial socket onto the inside of the rear
panel at J1. Be sure to position the socket so the
open side of the lug is toward the top of the
rear panel.
NOTE: Use care when you bend the solder lugs in the
next step. They are very brittle and break easily.
yf Locate three small control solder lugs. Then
refer to inset drawing #1 on Detail 6-1B and
bend the lugs enough so you can connect a wire to
them after they are mounted onto the rear
panel. Use these control solder lugs in the next
J three steps.
J3: Refer to Detail 6-1B and mount a phono
socket onto the rear panel at J3. Use a small
control nut and a prepared small control solder
lug. Be sure to position the socket so the lug is
toward the top of the panel. Also be sure to
position the solder lug as shown in the
Pictorial before you tighten the hardware.
of J4: Similarly mount a phono socket and a small
control solder lug onto the rear panel at J4. Be
sure to position the socket and the solder lug as
shown in the Pictorial before you tighten the
hardware.
dg J5: Similarly mount a phono socket and a small
control solder lug onto the rear panel at J5. Be
sure to position the socket and the solder lug as
shown in the Pictorial before you tighten the
hardware.
o/ Ro: Refer to Detail 6-1C and use the following
procedure to mount a 100 kQ control onto the
inside of the rear panel:
1. If your control has a small locating tab on
one side, carefully bend it back and forth
until it breaks off.
2. Use one of the flat washers and the nut
supplicd with the control and a large
control lockwasher to mount the control to
the rear panel at R2. Be sure to position
the control as shown in the Pictorial
before you tighten the hardware. Discard
the extra flat washer that was supplied
with the control.
o/ Refer to Detail 6-1D and use 6-32 x 1/4” hard-
ware to mount a #6 solder Jug onto the inside of
the rear panel at RA. Be sure to position the
solder lug as shown in the Pictorial before you
tighten the hardware.
@Y Refer to Detail 6-IE and mount a 10-32 x 5/8”
screw onto the rear panel at RB (do not use one
of the 10-32 brass nuts). After you tighten the
hardware, slide two #10 flat washers onto the
end of the screw. Then use a 10-32 wing nut to
secure the flat washers. Tighten the wing nut
finger tight.
J Refer to Detail 6-1F and use 6-32 x 1/4"
hardware to mount a 2-lug terminal strip onto
the inside of the rear panel at RC. Be sure to
position the terminal strip as shown in the
Pictorial before you tighten the hardware.