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( )
Using a 2 inch length ol insulated wire miikt) lhe i.onnection between lug' #1 of R37 and lug -J/1 of
R39.
Solder the two wires and the resistor I(tnd {il R37 but do n(jt stjlder the connection at R39.
( )
Using a 2 inch length of insulated wire in.ike Lhc c.onnection between lug /`1 ttf R39 and lug ``1 tjf
R41.
Solder two wires and the resistor lead :`L R3{) ar,a the wire and resistor lead at R41.
( )
Using a 2 inch length of insulated wire make Lh(` ctjnncction bclween t,he "Hot" terminal of
Jl and lug #3 of R35 as shown in figure 4.
Stildt`I. ljttLh connect,ions.
( )
Using a 2 inch length of insulated wire conilt}ii\ thi. ''llot" terminal of J2 t,o lug I(3 (>f R37.
Solder both connections.
( )
Using a 2 inch length of insula.ted wire comit`t`t `hi; ''Htjt" terminal t>f J3 to lug ,'i;:i t)I R:39.
Solder both connections.
( )
Using a 2 inch length ()f insulftledwire connect the ''Hot" terminal ()fJ4 Lo lug ;'(3 of R41.
Solder both connections.
( )
Prepare two 1.50 ohm resistors (brown-gre€m-brown) R29 and R;32 l).y culling ft)ur 3/4 inch
lengths of the plastic tubing provided and slipping these over the rcsisLor lea,ds.
Clip the
leads of the resistors off I/4 inch bc`yond the cnd of the tubing..
( )
Connect one of the resistors prepared abov(I (R29) l)etween lug ,H3 of R4:3 alid the left hancl
(ground) terminal of J5.
Solder both coiinect,ions.
( )
In a similar manner connect the other prcvit)iisl.y I)rci)zired ]`L`sistor (R32) betwec`n lug `'t'3 of
R44 and the left hand (groulid) lci.minfil t)1` J(L
St)ldcr both ct)nncc\it]ns.
( )
Fasten the two "L" brflckets to
the front panel
using i-tne 1 iiich
4-40 screw. one 3/4 inch spLieclr,
one lockwasher and one 4-40 nut
on each bracket as sho\\'n in figui.e
5.
Note that the unLhreaded hole in
the ''L'' bracket is used in this
operation.
( )
Fasten the circuit board t(] the
front panel ''L" brackets by
passing 4-40 X 1/4 inch machine
screws with lockwashers up throug`h
the holes in the circuit board iind
threading them into the threaded
holes in the ''L" brz`ckets.
Securel.y
tighten all screws.
.
I
Make the final circuit board/front p{Lnel
interconnectjttns
as follows:
( )
Connect the wire coming from circuit board
point ''X" to lug #2 of R40.
Solder the three
wires at this point.
( )
Connect the wire coming from circuit board
point ''R" to lug #1 of R43.
Solder this
connection.
( )
Counect the wire coming from circuit board point "Y" to lug #1 of R44.
Solder. this
connection.
( )
Connect the wire coming from circuit board point ''S" to the ''hot" (right) terminal of J5.
Solder this connection.
( )
Connect the wire coming fl`om circuit board point ''W" to the "hot" (right) terminal ofJ6.
Solder this connection.
In the following steps the shielded cable harnesses previously prepared will be used to make
connections from the\panel controls to the circuit board.
The bl.aid of each of these harnesses
will be soldered to a \potentiometer lug.
A CRIMPED MECHANICAL CONNECTION IS NOT
NECESSARY HERE.
Simply press the previously timed portion of the braid against the
Figure 6
(n(]te:
previoiisL}J insLcilled wires omitted for cl:`rit.v)
potentiometer lug and heat until the solder on the braid and the lug melts and flows together.
Remove the soldering iron and hold the braid ill place until the solder cools.
( )
Solder the I,inned end of the braid of one of the previously prepared cable harnesses to
lug #2 of R36.
( )
Use the short wire coming from the center of this harness to connect lug #2 of R35 (solder
this connection) to circu„ board point "A" (solder). M'nlch ft)I shtjl`ls between R35 and the
case of R36.
( )
Use one of the two longer wires to cormect lug` #1 of R36(solder) to circuit board point ''C"
( solder, .
( )
Use the remaining wire to connect lug #3 of R36 (solder) to circuit board point "8" (solder).
( )
Solder the tinned end of the braid of the second harness to lug (f2 of R38.
( )
Use the short wire coming from the center of this harness to connect lug #2 of R37 (solder)
to circuit board point "D" (solder).
( )
Use one of the two longer wires to connect lug #1 of R38 (solder) to circuit boal`d point "F"
(solder).
( )
Use the remaining wire to connect lug #3 of R38 (solder) to circuit board point "E" (solder).
( )
Solder the tinned end of the third harness to lug #2 of R40.
( )
Use the short wire coming from the center of the harness to connect lug #2 of R39 (solder)
to circuit board point ''G" (solder).
( )
Use one of the two longer wires to connect lug #1 of R40 (solder) to circuit board point "J"
( solder) .
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