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PENCIL
Figure 2
USING ONE OF THE TUBES JUST PREPARED PROCEED AS FOLLOWS:
( )
At a point 1/2 inch from the tinned tip of the tube, use the pencil to form a small hole.
Insert two of th®4 inch wires prepared above (one of each color.) through the length of
the tube.
Leave 1/2 inch of each wire exposed at .the closed end of the tube.
( )
Use the pencil to form another hole i-1/2 inches from the eEg± end of the tube
( )
Insert one of the 2-1/2 inch wires previously prepared into this hole and out of the open
end of the tube so that equal lengths of wire are exposed.
Pull the ends of the tube to
collapse it over the wires.
REPEAT THESE STEPS FOR THE REMAINING THREE TUBES AND PUT THESE HARNESSES
ASIDE FOR LATER USE.
In the following steps wires will be soldered to the circuit board which will later connect to the front
panel controls and jacks.
At each step prepare the wire by cutting it to the specified length and
stripping 1/4 inch of insulation from each end of the wire.
''Tin" each end of the wire by twisting tho
exposed strands tightly together and melting a small amount of solder into the wire.
Using the insulated wire provided make the following cormections to the circuit board.
( )
a 2-1/4 inch length to point "R".
( )
a 2-1/2 inch length to point "S".
( )
a 4-3/4 inch length to point "W".
( )
a 4 inch length to point "X'.
( )
a 4-3/4 inch length to point "Y".
THIS COMPLETES THE 4711 CIRCUIT BOARD ASSEMBLY.
TEMPORARILY SET THE BOARD
ASIDE AND PROCEED TO THE FRONT PANEL ASSEMBLY.
TO INSURE PROPER CLEARANCE AFTER
FINAL ASSEMBLY prepare potentiometers
R35 through R44 by carefully bending the lugs
so that they are parallel to the axis of the shaft
as shown in detail figure 3.
NOTE THAT 500K POTENTIOMETERS
ARE USED IN THE NEXT 8 STEPS.
( )
Mount 500K potentiometer R35
in the position shown in figul.e 4.
Use two 3/8 inch nuts, one behind
Figure 3
the front panel as a spacer and the
second on the front side of the panel to secure the potentiometer.
Adjust the rear nut so
that none of the threaded shaft of the control is exposed when the front nut is tlgbtened down.
This will allow the control knob which will be mounted in a later step to seat as closely as
I)ossible to the panel. Orient as illustrated in figure 4.
h a similar manner mount 500K potentiometer R36.
In a similar manner mount 500K potentiometer R37.
In a similar marmer mount 500K potentiometer R38.
Figure 4
( )
In a similar manner mount 500K potentiometer R39.
(-)
In a similar manner mount 500K potentiometer R40.
( )
In a similar manner mount 500K potentiometer R41.
( )
In a similar manner mount 500K potentiometer R42.
NOTE THAT 5K POTENTIOMETERS ARE USED IN THE NEXT TWO STEPS.
( )
In a similar manner mount 5K potentiometer R43.
( )
In a similar manner mount 5K potentiometer R44.
( )
Mount the miniature phone jack Jl in the position shown in figure 4.
Fasten in place with the
nut provided. Iorient as illustrated.
( )
In a similar manner mount miniature phone jack J2.
( )
In a similar manner mount miniature phone jack J3.
( )
In a similar manner mount miniature phone jack J4.
( )
In a similar manner mount miniature phone jack J5.
( )
h a similar manner mount miniature phone jack J6.
( )
Using a 1-1/2 inch length of insulated wire make the connection between lug #2 of R42 and
lug #2 of R40.
Do not solder either connection at this time.
( )
Using a 1-1/2 inch length of insulated wire make the connection between lug #2 of R40 and
lug #2 of R38 as shown in figure 4.
Do not solder either connection at this time.
( )
Using a 1-1/2 inch length of insulated wire make the connection between lug #2 of R38 and
lug #2 of R36.
Solder two wires at R38 but do not solder the connection at R36.
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()
Prepare 10K resistors (brown-black-orange) R1, R8, R15 and R22 by cutting their leads to
a length of 1/2 inch and bending the leads to a 900 angle from the body of the part.
Install the previously prepared resistors between lugs #1 and #3 of potentlometers R35, R37,
R39 and R41 as shown in figure 4. Do not solder any of these connections.
Using a 1-3/4 inch length of insulated wire make the connection between lug #2 of R36 and lug #1
Of R35. Solder the two wires at R36 but do not solder the connection at R35 at this time.
Using a 2 inch length of insulated wire make the connection between lug #1 of R35 and lug #1 of
R37.
Solder two wires and the resistor lead at R35 but do not solder the connection at R37.
5
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