Paia 9720, Assembly And Using Manual

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4 9720 VCO 010321
Resistors
Solder each resistor in place following the parts placement
designators printed on the circuit board and the
assembly drawing fig 1. Note that resistors are nonpolarized
and may be mounted with either lead in either of the holes
in the board. Before mounting each resistor, bend its leads
so that they are at a right angle to the body of the part. Put
the leads through the holes and then push the resistor firmly
into place. Cinch the resistor in place by bending the leads
on the solder side of the board out to an angle of about
45 degrees. Solder both ends of each resistor in place
as you install it. Clip each lead flush with the solder joint
and save a few of the clippings for use in later steps.
The 9720 VCO uses 1% film resistors in precision circuitry
and 5% carbon film resistors in non-critical locations. Not
all resistors are mounted on the circuit board, some will be
"left over" when the board is finished and will be installed
later in the assembly procedure.
First we’ll install the 5% resistors. These resistors are
identified by their 4 color bands. A tip: If you can't find the
location for a resistor, go on to the next one and come back.
DO NOT CHECK OFF A PART UNTIL IT IS INSTALLED
AND SOLDERED.
DESIGNATION VALUE COLOR CODE A-B-C
( ) R21 1.5m brown-green-green
( ) R43 1.5m brown-green-green
( ) R97 1.5m brown-green-green
listed below: 100k brown-black-yellow
( ) R3 ( ) R6 ( ) R10 ( ) R12
( ) R35 ( ) R38 ( ) R89 ( ) R90
( ) R94 ( ) R95 ( ) R96
listed below: 10k brown-black-orange
( ) R34 ( ) R47 ( ) R56 ( ) R68
( ) R78
( ) R63 10meg brown-black-blue
( ) R73 10meg brown-black-blue
listed below: 120k brown-red-yellow
( ) R7 ( ) R18 ( ) R45 ( ) R77
( ) R79
5% Resistors have
4 color bands