Heathkit HP-23A - Component Installation

Page 8 SEs
NOTE: In the following step you will bedirected
to prepare wires for connection, To prepare a
wire, cut it to the stated length and remove 1/4"
of insulation from each end, Melt a small amount
of solder onto each exposed end to hold the
wire strands together.
(() Prepare the following lengths of wire. The wires are
listed in the order in which they will be used.
() Connect @ 1-1/2" red wire from lug 1 of capacitor H
(NS) to lug 2 of eapacitor F (NS).
() Connect a 5" red wire from lug 4 of socket B(S-1) to
Jug 1 of capacitor F (NS).
() Connect an 8" orange wire from lug 3 of socket B (S-1)
to lug 1 of terminal strip L (NS).
() Connect an 8” yellow wire from lug 1 of socket B (S-1)
to lug 3 of terminal strip L (NS).
() Connect 2-1/2” brown wire from Ing 7 of socket B
(S-1) to lug 4 of capacitor H (S-1). Also solder lug 4 to
the mounting wafer (S-1).
() Connect a 9” green wire from lug 11 of socket B (S-1)
to lug 2 of control A (S-1).
COMPONENT INSTALLATION
Refer
to
Pictorial
3
for
the
following
steps,
NOTE: All resistors used are 2 watt unless
specified otherwise in the steps,
() Connect a 100 k® (brown-black-yellow)
resistor from lug 2 of capacitor H (S-1) to
lug 5 of capacitor F (S-1), Apply enough
heat and solder to lug 2 of H to solder it to
the mounting wafer,
() Connect a 100 k® (brown-black-yellow)
resistor from lug 1 of capacitor H (8-3) to
lug 1 of capacitor F (NS),
) Connect a 100 k® (brown-black-yellow) re-
sistor from lug 5 of capacitor H (8-1) to
lug
2
of
capacitor
F
(S-2),
) Connect a 100 k® (brown-black-yellow) re-
sistor between lugs 1 (NS) and 4 (S-1) of
capacitor F,
) Install a 1-1/4” length of black sleeving on
one lead of a 100 kf (brown-black-yellow)
resistor, Then connect this lead to lug 1 of
terminal strip L (NS), Connect the other
lead
to
the
indicated
solder
lug
at
M
(NS),
) Connect a 1000 & (brown-black-red) re-
sistor from lug 3 (NS) to lug 4 (NS) of
terminal strip L,
) Connect a10k0 (brown-black-orange) 1 watt
resistor from lug 1 of control A (8-1) to
lug 2 of terminal strip L (8-1),
) Connect a10k® (brown-black-orange) 1 watt
resistor
from
lug
3
of
control
A
(S-1)
to
lug
3 of terminal strip L (NS),
) Connect the positive (+) lead of the 40 uF
electrolytic capacitor to lug 1 of terminal
strip L (S-4), Connect the other lead to the
indicated solder lug at M (S-1), Position this
capacitor as shown in the Pictorial,
) Cut the negative (-) leads of each of the
two 20 uF electrolytic capacitors toa length
of 1-1/4", Then install 1" lengths of black
sleeving on the negative leads,
) Connect the positive (+) lead of one of the 20
uF lectrolftic capacitors to the indicated
solder lug at M (NS), Connect the negative
lead to lug 3 of terminal strip L (8-4), Po-
sition this capacitor next to the 40 uF ca-
pacitor installed previously,
) Connect the positive (+) lead of the other
20 uF electrolytic capacitor to the indicated
solder lug at M (8-3), Connect the negative
lead to lug 4 of terminal strip L (NS),