Ramsey Electronics FX-440 Manual page 79

//
FUSE
VOLUME
IN
w
OUT-~=::)
GND
-~V'\
PWR
( ) (i ]/B13. Use two 12• lengths of hookup wire (or
a•
of 2 conductor
1.
7
wire) to prepare the Speaker Cable. Neatly strip and tin all 4 ends
as
i.~
Step 811.
1
.,,<''
[ ) [ /,],, 814. Solder both wires of one end of this speaker cable to the
two marked points near C37.
/
[ ) ( iJ..""815. The other two ends of the speaker cable may be connected
in any of the following ways:
Standw;d:
(D'(i~
J2, the 3.5 mm miniature speaker jack. The 3.5mm miniature jack
is the larger of the two miniature jacks supplied with your kit.
SPEAKER JACK
OUT
Optional:
) to a test speaker, temporarily or
] to a speaker intended for regular use inside or along with your FX-
Transceiver.
[ ] [ LJ.--·816.
Solder the speaker cable to your choice of
speaker. Give attention to the polarity marks on most bare
speakers as well as enclosed units. The wire from the point
marked SPKR should be connected to the speaker terminal
marked (
+ ).
Stage B: AUDIO AMPLIFIER TEST:
1. Reconnect 12 volts DC as done for testing the power input circuit in
stage
A.
ryve
assume speaker hookup per 815.) ,
. 2 . .
Turn
on
pow~r
switch S1. All you should hear is one gentle "'pop• in
FX-440
A
Assm. 19