Heathkit IT -3120 User Manual

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PICTORIAL 3
Refer to Pictorial 3 for the following steps.
NOTE:
In the following steps, install the mode and fu nction
switches as follows:
1. Align
the switch over the holes on the circuit
board.
Then insert the switch lugs into the
circuit board holes.
2. Press the switch against the circuit board; then
turn the circuit board over and solder one lug at
each end of the switch to the foil.
3.
Re-examine the switch to make sure it is still
seated against
the circuit board.
4.
Make sure
the jumper wires on the component
side of the circuit board do not touch the lugs of
the switch.
5.
Then solder the remaining lugs (those
surrounded with foil) to the circuit board foil.
Install
the mode switch (#64-97) on the circuit board
at AA. NOTE: To make sure you use the correct
switch,
compare it to the one shown at location AA
on Pictorial 3.
Install
the function switch (#64-99) on the circuit
board
at AB.
Carefully
examine the circuit board foil to make sure
all leads are soldered to the foil. Then cut off any
excess lead lengths.
NOTE:. You should have a
166 n precision resistor left. Set
it aside; it will be used later.

Heathkit IT -3120 Specifications

General

Brand	Heathkit
Model	IT -3120
Category	Test Equipment
Language	English