Assembly Instructions - Elenco Electronics AM-550K Assembly And Instruction Manual

ASSEMBLY INSTRUCTIONS

We will begin by installing the speaker. Be careful to properly mount and solder all components. Diodes and
electrolytic capacitors are polarized, be sure to follow the instructions carefully so that they are not mounted
backwards. Check the box when you have completed each installation.
Figure B
If the speaker pad has center and outside pieces, then
remove them. Peel the backing off of the speaker pad and
stick the pad onto the speaker. Then stick the speaker
onto the solder side of the PC board as shown.
Remove
Your kit may contain a different type of earphone jack. Before installing
the jack, determine which one you have. Solder the GND terminal to the
PC board pad.
Jack
2
Nut
3 1
GND Pad
1 - GND
2 - Tip
Part # 622131
3 - N.C. Tip
Mount the jack with the nut from the foil side of the PC board (terminal #1 on
the GND pad of the PC board). Be sure to line up the tab with the pad on the
copper side of the PC board. Solder terminal #1 to the pad of the PC board.
Figure C
Foil Side
Nut
2
3
GND
Pad
1
1 - GND
2 - Tip
Part # 622130
3 - N.C. Tip
Pad
Backing
Speaker
Cut two 1 1/2" wires and one 1" wire and strip 1/4" of insulation off
of both ends. Solder the wires in the locations shown.
Jack
From Terminal 3
1" Wire
Part # 622131
-9-
J1 - Earphone Jack
with Nut
(see Figure C)
SP1 - 8Ω Speaker
Speaker Pad
Wire 4"
(see Figures B & D)
Battery Holder
1 Screw 2-56 x 5/16"
2 Screw 2-56 x 1/4"
3 Nuts 2-56
Solder and cut off
excess leads.
Backing
Figure D
1 ½"
Wires
1" Wire
Part # 622130
1 ½"
Wires