Galaxy Audio CRICKET POLARITY TEST SET User Manual

CRICKET

POLARITY TEST SET

OWNERS

MANUAL

®

GALAXY AUDIO

MAKERS OF THE ORIGINAL HOT SP T PERSONAL MONITORO

Table of Contents

How the Cricket works......................1

Battery Installation.......................3

How to Set Units for Testing.............. 3

How to Test................................4

Cables...............................5

Amps, Mixers, etc....................5

Microphones..........................6

Speakers.............................7

What Does All This Mean?..................9

Polarity............................9

Continuity..........................10

Specifications...........................11

I. How the Cricket works

A. Send unit:

1. OFF-ON: This switch turns the unit on and off.

2. LO-HI-SPKR:

a. LO: Produces balanced low level output
on the 1/4" balanced and XLR jacks
with pin #1 and sleeve ground, pin
#2 and tip positive, and pin #3
and ring negative.
b. HI: Produces balanced hi level output
on the 1/4" balanced and XLR jacks
with pin #1 and sleeve ground, pin
#2 and tip positive, and pin #3
and ring negative.
c: SPKR: Produces a positive acoustic
output from the internal speaker
which is disconnected when the
1/4" unbalanced jack is used.
This output will drive a speaker
directly with tip positive.

B. Receive unit:

1. OFF-BAT-ON: This switch turns the unit on and
off. With the switch in the BAT
position, the green LED lights if the
battery is good. Replace the battery
if the green LED does not light or is
very dim.

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2: MIC, 2-T, 3-R:

a: MIC: Connects the LED metering circuit to
the microphone located in the back of
the unit. If the mic receives a
positive pressure, the green LED
lights. If the mic receives a
negative signal, the red LED lights.
b: 2-T: Connects the LED metering circuit
to pin #2 of the XLR jack and the tip
of the 1/4" jack. If pin #2 or tip is
positive, the green LED lights. If it
is negative the red LED lights.
c: 3-R: Connects the LED metering circuit
to pin #3 of the XLR jack and the
ring of the 1/4" jack. If pin #3
or ring is positive, the green LED
lights. If it is negative the red
LED lights.

3: CON/POL:
a: CON: Allows the receive unit to be used
as a cable tester, offering specific
indications of fault conditions.
b: POL: Allows the receive unit to be used
strictly for polarity testing. A
particularly useful setting for
direct testing of most dynamic
microphones and certain transformer
balanced outputs and splits that
are not referenced to ground.

4. GAIN: This control is a sensitivity control
connected to the input of the metering
circuit.

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II. Battery Installation for both Send and Receive units
(Use only alkaline batteries)

1. Remove the single phillips head screw from the
battery door on the top of the case.

2. Lift up the door and remove it from the case.

3. Locate the battery terminal snap and attach a 9
volt alkaline battery to it.

4. Slide the battery into the clip mounted to the under
side of the battery door.

5. Reinstall the battery door to the case, making sure
no wires are pinched in the door.

6. Reinstall the single phillips head screw.

III. How to set units for testing.

A. Send unit.

1. LO-HI-SPKR: To test speaker polarity put the
selector switch in the "SPKR" position and use
the 1/4" jack marked "EXT SPKR". To test
balanced cable polarity/continuity set the
selector switch to the "LO" position and use
either of the jacks marked "BALANCED OUT". To
test an unbalanced cable for polarity/
continuity set the selector switch to the"HI"
position and use the appropriate "BALANCED OUT"
jack. The "HI" position may also be used for
tests that involve connecting to the input of
an amplifier where the "LO" position is first
proven to be too low a level signal to conduct

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