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English

6

TROUBLESHOOTING

PROBLEM

INDICATOR STATUS

XMITTER

RECEIVER

= on

= flickers on loud peaks

SOLUTIONS

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Slide transmitter POWER switch to ON.

Make sure battery is inserted properly (+/– battery terminals must
match transmitter terminals).

Insert fresh battery.

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Make sure AC adapter is securely plugged into electrical outlet
and into DC input connector on rear panel of receiver.

Make sure AC electrical outlet works and supplies proper
voltage.

No sound.

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Slide transmitter MUTE switch to ON.

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Extend antennas. Receiver antennas should point away from
each other at a 45

°

 angle from vertical.

Move receiver away from nearby metal objects.

Remove obstructions and maintain line of sight between
transmitter and receiver.

Move transmitter closer to receiver.

No so nd or faint so nd

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Increase transmitter gain until Transmitter Audio Peak light flashes
on loud peaks.

Turn up receiver volume control as necessary.

No sound or faint sound.

POWER

ANTENNA

AUDIO

PEAK

A

B

ON

POWER

LOW BATT

TRANSMITTER

Turn up receiver volume control.

Check cable connection between receiver and amplifier or mixer.

Sound level from the
receiver is different from
that of a cabled guitar or
microphone.

Adjust transmitter gain as necessary.

Adjust receiver volume as necessary.

Sound level is different
when you change guitars.

Adjust transmitter gain to compensate for differences between
guitar output levels.

Distortion increases
gradually.

POWER

LOW BATT

Replace transmitter battery.

Bursts of noise, distortion, or
other radio signals interrupt
performance.

ANTENNA

A

B

POWER

LOW BATT

If noise occurs when transmitter is turned off, remove or turn off
nearby sources of RF (such as other wireless systems, CB radios,
etc.).

Use a wireless system that operates on a different frequency.

Momentary loss of sound as
transmitter is moved around
performing area (dropouts).

ANTENNA

A

B

POWER

LOW BATT

Reposition receiver and perform walk-through test. If audio
dropouts persist, mark “dead” spots and avoid them during
performance.

Summary of Contents for AXU Series

Page 1: ...Mounting Strips RECEIVER FEATURES 6 7 10 9 11 1 2 3 4 5 8 12 18VDC DC INPUT UNBALANCED HIGH Z BALANCED LOW Z LINE MIC SQUELCH MIN MAX FIGURE 1 AXU4 RECEIVER FEATURES 1 Power On Indicator This green li...

Page 2: ...op eration the antenna must hang vertically and should not be coiled or bundled 9 Battery Compartment Holds one 9 V battery Hinged cover opens to provide access to the battery 10 Lavalier Microphone...

Page 3: ...ROPHONE POSITION BODYPACK TRANSMITTER SETUP 1 Attach the transmitter to your belt guitar strap or waistband as shown in Figure 6 Depress the tab marked PRESS and slip the belt or strap between the tra...

Page 4: ...t your Shure dealer for details WIRELESS SYSTEM ADJUSTMENTS TRANSMITTER AUDIO GAIN ADJUSTMENT The audio gain control on each transmitter has been factory preset at the mid range position This produces...

Page 5: ...hen a conventional wireless system is used in a noisy RF environment its circuits may open unexpectedly sending loud bursts of noise through the receiver when the transmitted signal is weak or turned...

Page 6: ...ON POWER LOW BATT TRANSMITTER Increase transmitter gain until Transmitter Audio Peak light flashes on loud peaks Turn up receiver volume control as necessary No sound or faint sound POWER ANTENNA AUDI...

Page 7: ...ied to 5 V Pin 3 Tied to Audio Pin 4 Tied to 20k Resistor and Audio Ground Dimensions 82 6 mm H x 63 5 mm W x 26 2 mm D 3 25 H x 2 50 W x 1 03 D Net Weight 125g 4 4 oz including battery Power Requirem...

Page 8: ...f one year from date of purchase all transmitter and receiver parts At its option Shure will repair or replace the defective product and promptly return it to you You should retain proof of purchase t...

Page 9: ...he following two conditions 1 this de vice may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Testing...

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