12 9710 VCA
000216
It will be easier to do the ground wiring of J10-J13 before the rest
of the panel controls are mounted.
( ) Cut a 3" length of the bare wire supplied and pass it through
the holes in the "S" lugs of J10 and J13 (lift these two lugs away
from the panel and twist them so the wire can pass through).
Solder the connection at J13 so the wire ends at that lug and at
J11 so that a stub about 1-3/4" long extends beyond the lug.
Connect the "S" lugs of J11 and J12 to the wire by bending
them up until they touch the wire then soldering the two
together.
( ) Using the flat washers and nuts supplied, mount
the five potentiometers to the panel as shown
in fig 2. Note that two different values are used so be
careful that the correct value is placed in the correct
location. Value is stamped or printed on the body
of the part. Orient the pots with the solder lugs as
shown in fig 3 and fully tighten the nuts to secure them.
A tip: marking the part number (e.g. R109) on the back
of the pots with an indelible pen will make later wiring
easier and less prone to error.
( ) Using the nut and washer supplied, mount the
miniature toggle switch as shown in fig 2.
While the circuitry only requires a SPST switch
(with two solder lugs) the part supplied will
most likely be SPDT types (with three lugs)
and only two of the lugs will be used. Orient
the switch as shown in fig 3 and fully
tighten the nut to secure it. The switch is
symmetrical so whichever soldering lug
is on the left is #1.
Now we’ll continue wiring of the front panel parts as shown in fig 3. First,
notice that Individual solder lugs are identified by part number and lug
number. For example, R109-1 means the lug labeled “1” of the Potentiometer
R109.
Bend or remove this tab so
against the front panel.
that the pot will seat flush
A SPDT switch may
be supplied even
though only SPST
is requred.
1
3 2
1
2
3
