Ass
1)
ts list
ltimeter
ure capacitance, resistance,
2)
ual
3)
mall
liers;
driver; multimeter for
measuring voltage, capacitance, and
.
Sol
1)
the crack between the
2)
d will
ell as damage the
4) Keep iron tip clean by wiping iron across
water dampened sponge -- frequently.
EAD ALL INSTRUCTIONS BEFORE
embly Preparation and Procedures:
Important:
identify all parts on par
before proceeding. If you are having
difficulties in identifying the parts
visually, suggest that you use a mu
that can meas
voltage. Measure the components
accordingly.
Suggestion:
simulate board assembly by
placing the components in their actual
place on the picture assembly, then
transfer the components to the act
board for soldering assembly.
(see figure
1 for scanned board assembly)
Tools required:
small soldering iron 27W
to 35W; resin core solder (0.03" diameter
with SN60 or SN63); small sponge (water
dampened) for cleaning solder tip; s
wire cutter/stripper; small long nose p
small screw
resistance
dering Tips:
Feed the solder to
iron tip and the solder pad next to the
component lead.
Leaving the iron tip too long on a pa
cause the pad to life, as w
component. Allow approximately 2
seconds per solder joint.
3) Using too much solder can cause the
solder to bridge across traces and pads.
Assembly Instructions:
R
STARTING!!!
Before assembly, determine if a split power supply
or a single power supply will be used, as
placement of R12 potentiometer will change (
an addition of a jumper wire across the output
with
oltage nodes - please see figure 3 for single
lit power supply.
Pri
1)
by placing the
wn
2)
he bottom of the PCB
d
3)
e
ocated
4)
sistors)
).
djustment knob aligned to
5)
d leads at the bottom of the PCB to
6)
v
power supply and figure 4 for sp
nted wiring board assembly
Start the board assembly
printed circuit board to the position sho
on figure 1 and figure 2
Insert resistors R1 through R8 into the
board. Observe the color code of each
resistor as you install them (color code is
stated in the parts list for each resistor. If
uncertain, measure the resistors with your
multimeter and label them accordingly).
Bend the leads at t
board to contain the resistors, solder an
clip excess leads.
Insert IC1 into board. Be sure that th
notch at the end of the IC is l
properly as shown for pin number 1
identification (see figure 2).
Insert potentiometers (adjustable re
R9, R10, and R11 as shown (see figure 2
Resistors R9 and R10 will require
spreading of the leads to match the hole
spacing on the board. R11 requires
matching the a
the small rectangular shape (see figure 2).
Solder leads.
Insert capacitors C1, C2, and C7 into the
board. Note that the leads are polarized
and must be placed as shown (see figure
2). Ben
contain capacitors, solder, and clip excess
leads.
Insert capacitors C3, C4, C5, and C6. The
capacitance values are marked on the
