ITC-820k Instrrtction.Manual
CII' Filter
45. Locate capacitor CIO (IOuF). This is an electrolytic type capacitor
and will be marked "lOuF" (actual value in uF). Carefully install C9:
be sure to orient the negative end of the capacitor properly.
Please
refer to the section titled, "Parts Placement", Figure I for correct
orientation of CIO. Once installed, then solder in place and trim
excess lead.
46. Take the remaing 6" lengths of insulated wire and cut them in half.
You should have (10) 3" pieces of insulated wire.
47. Using the iyire strippers. remove a 1/-1" piece of insulation from
each of the 10 pieces of insulated wire .
48. Take a 3" piece of insulated wire and insert one end into the hole
silk-screened INPUT on the circuit board. Solder in place and trim the
excess lead
49. Take one 3" piece of insulated wire and insert one end into the hole
silk-screened #1 on the circuit board. Solder in place and trim the excess
lead.
50. Take one 3" piece of insulated wire and insert one end into the hole
silk-screened #2 on the circuit board. Solder in place and trim the
excesslead.
51. Take one 3" piece of insulated wire and insert one end into the hole
silk-screened #3 on the circuit board. Solder in place and trim the excess
lead.
52. Locate the battery snap. Insert the RED lead into the hole silk-
screened VCC on the circuit board. Solder in place and trim the excess
lead.
53. Insert the BLACK lead of the battery into the hole silk-screened GND
on the circuit board. Solder in place and trim the excess lead.
54. Locate the 4P-1T slide switch (S W
55. Inspect the slide switch for tarnished contacts. Remove any tarnish
with very fine sandpaper so the contacts are nice and shiny. This will
provide a good soldering surface.
Note: Please refer to the section titled, "Parts Placement" Figure 2 for Steps 56
through 66.
56. Connect one 3" piece of insulated wire to Point A on SW1.
Do
not solder yet.
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