Heathkit IO-4205 - Page 80

Page 78
~ Connect the Blu wire coming from the horizon-
tal circuit
board to the CRT socket lug 10 (S-1).
This completes the wiring ofthe Oscilloscope. Check
to see that all connections are soldered and shake out
any cut-off wire ends or solder splashes that may be
lodged in the wiring or on the circuit boards.
Refer to Pictorial 4-20 (Illustration Booklet,
Page 22)
for
the following steps.
Start a 6-32
x 1/8" black setscrew in each of the
12 knobs. Use the allen wrench furnished with
the kit. NOTE: Four of the knobs and three of the
setscrews were packed with the vertical circuit
board parts.
( )
Turn the Y1 POS and Y2 POS control shafts
fully
counterclockwise . Then install a small
black knob on each of these shafts with each
knob pointer positioned as shown.
( v{ Install a small black knob with skirt on each of
the INTENSITY, FOCUS, TRIG LEVEL, and
HORIZ POS control shafts.
SHIELDED
CABLE
PICTORIAL 4-21
( ~ n the three rotary switches (large outer
shafts) fully counterclockwise.
~ nstall a large black knob on the two VOL TS/CM
switch shafts with their pointers at the "20"
. ositions.
Install a large
black knob on the TIME/CM
switch shaft with its pointer at the "200" posi-
tion.
( (
Turn the remaining three small inner control
shafts to
their fully clockwise positions.
{ Install a
red knob on each of these control shafts
with each knob pointer at the CAL position.