Pc Board Assembly - Elenco Electronics AK-100/SP-1A Assembly And Instruction Manual

PC BOARD ASSEMBLY

NOTE: Before beginning assembly, please refer to page 13 for the resistor reading exercise. This will familiarize
you with the resistor color band coding.
Solder the following parts to
the PC board.
Battery Snap
(see Figure A)
C5 - .02μF or .022μF Discap
C6 - 100μF Electrolytic (Lytic)
(see Figure B)
IC1 - 555 or 1455 Timer
(see Figure C)
VR1 - 200Ω Potentiometer
(see Figure D)
Figure A
Solder the Red Positive (+) lead of
the battery snap to the hole marked
(+) on the PC board.
Black Negative (–) lead to the hole
marked (–) on the PC board. Cut off
the excess leads.
Black Wire
Red Wire
Figure B
Electrolytic capacitors have polarity.
Be sure to mount them with the
negative (–) lead (marked on side) in
the correct hole.
(–) (+)
Mount IC1 in the location shown
below onto the PC board. Be sure
Solder the that the notch or dot on the IC is in
the same direction as the marking on
the PC board (see drawing below).
Solder and cut off the excess leads.
NOTE: Do not keep the soldering
iron on the IC leads for extended
periods of time. You run the risk of
overheating the IC, thus damaging it.
Figure C
Notch
or Dot
-11-
R9 - 10kΩ 5% ¼W Resistor
(brown-black-orange-gold)
(see Figure E)
R8 - 10kΩ 5% ¼W Resistor
(brown-black-orange-gold)
(see Figure E)
Jumper Wire (see Figure F)
R7 - 470Ω 5% ¼W Resistor
(yellow-violet-brown-gold)
(see Figure E)
R6 - 22kΩ 5% ¼W Resistor
(red-red-orange-gold)
(see Figure E)
C3 - 10μF Electrolytic (Lytic)
(see Figure B)
Figure D
Mount VR1 into the three holes in the
PC board as shown below. Note that
the other two holes are not used.
Solder and cut off the excess leads.
Holes Not Used
Figure E
Mount the resistor flat against the PC
board as shown.