14 9720 VCO
010321
insulated stranded wire. For each of these cut piece of wire
to the length specified, strip 1/4" of insulation from each end
and twist and tin the exposed strands. Proceed by columns.
LENGTH FROM
TO
LENGTH FROM
TO
( ) 4"
R203-1 (ns) J1-S (ns)
( ) 3-3/4"
R203-3 (s1) R204-3 (s2)
( ) 2"
R204-3 (ns) R206-3 (ns)
( ) 1-3/4"
R204-1 (s3) R206-1 (s2)
( ) 1-1/2"
J18-T (s1)
R202-2 (ns)
( ) 4"
R202-2 (s2) J10-X (s1)
( ) 1-1/2"
J9-S (s2)
S1-2 (s2)
( ) 1-3/4"
J18-S (s2)
R202-1 (s2)
( ) 2-1/2"
J7-X (s2)
J4-X (s1)
The resistors and capacitor not used during circuit board assembly
will now mount directly on the lugs of panel parts (see fig 3).
( ) Cut the leads of the remaining 100k ohm 1% resistor
(brown-blk-blk-orange) to a length of 1/2". Connect one lead
to J1-S (s3) and the other to J1-T (ns). This is R209.
( ) Cut the leads of the .001uF ceramic disk capacitor (marked 102)
to a length of 3/8". Connect one lead to J8-T (s1) and the other
to J9-T (ns). This is C24.
( ) Locate the 750 ohm 5% resistor (violet-green-brown).
Cut two 5/8" lengths of the small sleeving supplied and
slip one over each resistor lead. Trim the leads so that
1/4" extends beyond the sleeving. Use this part as R207
to make the connection from R200-1 (s1) to R201-1 (ns).
( ) Similarly insulate the leads of the 39k ohm 5% resistor
(orange-white-orange). Use this part as R208
to make the connection from J3-X (s1) to J10-S (s2).
This completes the wiring between parts on the front panel.
Before going further, make sure that the bare wire is dressed
down against the panel and not in danger of shorting to unintended
solder lugs. Dress the insulated wires down also - they need not be
close to the panel but should not loop out away from the assembly.
A few connections will be made between the circuit board and
front panel before the two are fastened together. These connections
will be close to components on the circuit board when it is attached
to the panel so sections of clear tubing are used for insulating
sleeves. Cut a 3/8" long piece of large tubing from the length supplied
and slip it over the wire before making the connection. When the solder
joint has cooled, slide the tubing down over the lug (see fig 4).
FROM
TO
FROM
TO
T
T
Slide tubing
over wire
Then over
connection
Summary of Contents for 9720
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