Figure Ca
Mount capacitor C6 on the
back of the PC board in
the location shown. Make
sure the lead with the
polarity marking is in the
correct hole as shown.
Figure C
-5-
ASSEMBLE COMPONENTS TO THE PC BOARD
Place a check mark in the box provided next to each step to indicate that the step is completed.
Figure A
Mount diode with the band in the
same direction as marked on the PC
board. Solder and cut off the excess
leads.
Electrolytics have a
polarity marking
indicating the (–)
lead. The PC board
is marked to show
the lead position.
Warning:
If the capacitor is
connected with incorrect polarity,
or if it is subjected to voltage
exceeding its working voltage, it
may heat up and either leak or
cause the capacitor to explode.
Figure D
Insert the IC
socket into the PC
board with the
notch in the
direction shown
on the top legend.
Solder the IC
socket into place.
Insert the IC into
the socket with
the notch in the
same direction as
the notch on the
socket.
Notch
Figure E
D1 - 1N4148 Diode
D2 - 1N4148 Diode
(see Figure A)
R4 - 150
Ω
5% 1/4W Res.
(brown-green-brown-gold)
R2 - 3.3k
Ω
5% 1/4W Res.
(orange-orange-red-gold)
IC1 - 484 / 7642 IC
(see Figure B)
R1 - 100k
Ω
5% 1/4W Res.
(brown-black-yellow-gold)
C1 - .01
μ
F Discap (103)
C3 - .047
μ
F Discap (473)
C5 - 10
μ
F Electrolytic
C4 - 10
μ
F Electrolytic
C8 - 10
μ
F Electrolytic
(see Figure C)
Pad
Backing
Speaker
Backing
Step 1
Step 2
Step 3
Step 4
PC Board
(solder side)
Step 1:
If the speaker pad
has center and outside
pieces, then remove them.
Peel the backing off of one
side of the speaker pad and
stick the pad onto the
speaker.
Step 2:
Remove the other
backing from the speaker pad.
Step 3:
Stick the speaker
onto the solder side of the PC
board.
Step 4:
Solder the 2 wires
from the speaker to the pads
+SP and –SP.
Polarity Mark
(–)
(+)
Band
Figure B
Mount the IC with
the flat side in the
same direction as
marked on the PC
board. Solder and
cut off the excess
leads.
Flat
Polarity
Mark