Heathkit IO-4205 - Page 74

Page 72
Refer to Pictorial4-11 (Illustration Booklet, Page 17)
for
the following steps .
~ ) Position the chassis upside down as shown.
Push the slide switch insulator onto the rear of
switch SW9 .
Connect the wires coming from B0#2 of the harness
as follows:
Either large Brn wire to switch SW9lug 6 (S-1).
Make a mechanically secure connection .
Other large Brn wire to switch SW9lug 5 (S-1).
Make a mechanically secure connection.
( '-) Wht-Brn wire to socket J3 (S-1).
(
tJ_.,.-- Blk wire to socket J5 (NS).
ass the Wht-Red wire coming from B0#2
through grommet BB for connection later.
==t'J ) Prepare a 5-1/2" Wht-Blu wire and a 3" Blk wire.
:::TJ. ) Connect one end of a 5-1/2" Wht-Blu wire to
socket J4 (S-1). Pass the other end of this wire
through grommet BA for connection later .
T )
Connect one end of a 3" Blk wire to socket J5
(S-2). Pass the other end of this wire through
grommet BB for connection later.
Refer to Pictorial 4-12 for the following steps.
( .!)' Refer to Detail4-12A and prepare the end of the
/ line cord.
( ~ Refer to Detail4-12B and pass the prepared end
of the line cord through hole Win the rear of the
chassis.
Refer
to Detail4-12B and install the line cord in
the line cord strain relief. Install the line cord
strain relief at location W with a #6 x 9/16"
screw .
Pass the end of the line cord through grommet BG and
connect its leads as follows. All three connections
must be mechanically secure.
''"''''') I I I
0 .5 1 (CM) 2
(INCHES)
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2
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Gril to solder lug P (S-1).
I
Blk lead to fuse block F1 lug 1 (S-1).
(
Wht lead to switch SW10 lug 6 (S-2).
ALTERNATE LINE VOLTAGE OPERATION
This Oscilloscope can be operated on either 120 V AC
or 240 VAC
line voltage. In the United States 120 VAG
is
most often used , while in other countries 240 V AC
is
more common. USE ONLY THE INSTRUCTIONS
THAT AGREE WITH THE LINE VOLTAGE IN YOUR
AREA.
120 VAC LINE VOLTAGE
~ Move slide switch SW10, if necessary, so the
120 is visible on the top of the switch. Use a
screwdriver blade to move the switch slider.
~ ~ F1: Install the 1/2-ampere, 3AG, slow-blow fuse
\
in the fuse block at location Ft.
( Remove the protective backing from the fuse
1 label and press the label onto the bottom of the
chassis at the indicated location.
[ ~
Write "1/2-ampere, 3AG, Slow-blow" on the
line on the fuse label.
240 VAC LINE VOLTAGE
( ) Move slide switch SW10, if necessary, so the
240 is visible on the top of the switch. Use a
screwdriver blade to move the switch slider.
( ) F1: Install a 1/4-ampere, 3 AG, slow blow fuse
(not supplied) in the fuse block at location Ft.
( ) Remove the protective backing from the fuse
label and press the label onto the bottom of the
chassis at the indicated location.
( )
Write "1/4-ampere, 3AG, Slow-blow" on the
line on the fuse label.
4
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