Raco Verbatim, Owner'S Manual

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Verbatim Floobydust
H-2 Verbatim Owner's Manual
H.2 External Speaker Connections
An audio output suitable for driving an external speaker of 4 to 16 ohms imped-
ance, headphones, or other audio system, is available via jack AJ1, located in
the upper right hand area of the main circuit board. This jack must be
configured to deliver audio signal output by placing a jumper shunt across the
upper pair of pins on the three-pin header JB8, located next to AJ1.
Note that AJ1 is a dual purpose jack which may be used either for audio output
or DC power input, but not for both simultaneously.
To make connection with AJ1, use a standard single-circuit “MINI” plug. The
tip end will be the audio signal; the shell will be ground.
The output signal has a nominal impedance of 8 ohms and a nominal average
amplitude of 1 volt RMS, when the audio level trimpot, described below, is set
to full clockwise position.
H.2.1 Specifications for Audio Output from Jack AJ1
Nominal output impedance 8 ohms
Nominal average output amplitude with 8 ohm load 1 VRMS
AJ1
JB8
SPKR
VOL
MINI PLUG
HOT
COMMON
GROUND