Shure MX890 User manual

Wireless Desktop Base

The Shure MX890 desktop base for MX405 and MX410

gooseneck microphones offers cable-free installation for

corporate boardrooms or other applications requiring exible

microphone congurations. The MX890 operates within the

518–865 MHz bands and is compatible with Shure SLX wireless

systems.

27EN3253 (Rev. 3)

Model MX890

Printed in U.S.A.

Features

Sleek, low prole design•

Frequency agile, microprocessor controlled transmitter•

IR link to SLX receiver for automatic frequency • synchronization

Programmable frequency Group/Channel display

•

Programmable mute function•

Operates on two AA batteries•

Compatible with all Shure SLX Wireless systems•

Supports Shure MX405 and MX410 Mini Gooseneck• Microphones

Commshield™ technology for protection from RF interference

•

Microphone Placement

Place the MX890 no more than 25 cm (1 ft.) from the edge of

the table. Aim the microphone toward the talker and away from

loudspeakers and noise sources. Use one microphone for each

talker. Pickup angle with a cardioid cartridge is 130° at –3 dB.

Pickup angle with a supercardioid cartridge is 115° at –3 dB.

Note: To minimize RF interference, maintain a distance of at

least 0.3 m (1 ft.) between transmitters. In case of interference,

increase the distance between transmitters or change channels.

Receiver

Make sure the receiver is within sight of the transmitter. Do not

place receiver behind a metal barrier or any reective surface.

Refer to the SLX Wireless System User Guide for more

information, or visit www.shure.com.

130º

30m (100ft)

The low-cut lter attenuates frequencies

below 150 Hz by 6 dB per octave.

Low-Cut Filter

Filter disabled (as supplied)

Low-cut lter

Connecting Gooseneck

Align the pin on the microphone 1.

ange with the slot on the desktop

base.

Insert the gooseneck into the

2. desktop base and lock it in place

by rotating the gooseneck sleeve

clockwise.

Battery

Installation

Open the battery compartment1.

as shown.

Insert two1.5V “AA” batteries.

2. Make sure the +/– terminals

are properly oriented.

Note: Alkaline batteries last up to

8 hours. Rechargeable, carbon-

zinc and zinc-chloride batteries

provide less operating time.

Power Meter

The battery meter on the

LCD shows remaining

battery life.

Low Power Indicator

Steady Red: Power

low. Replace batteries

immediately

Pulsing Red: Batteries

dead. Transmitter cannot be

turned on until batteries are

replaced.

Press and hold the1. ON/OFF PROGRAM button for

approximately 2 seconds. The LCD illuminates.

To turn the transmitter off, press and hold the

2. ON/OFF

PROGRAM button again.

Note: Use the button on the bottom of the transmitter to power it

on without opening the battery compartment.

Power On/Off

Mute Button

The mute button can be congured for toggle or momentary

operation.

Toggle (as supplied)

The PUSH button toggles the microphone between active and

muted states.

NOTE: The microphone always powers up in the active state.

Momentary

There are two types of momentary operation:

Push-to-Mute: The microphone is muted only while the button is

pressed and held.

Push-to-Talk: The microphone is active only while the button is

pressed and held.

To change between toggle and momentary:

Hold the PUSH button and

press the SELECT button.

(Test the microphone to

conrm the change.)

To change between push-to-talk and push-to-mute:

Set the button for

momentary operation.

Hold the

2. SELECT button

and press the PUSH button.

Hold

Mute Indicator

The desktop base illuminates the gooseneck microphone LED to

indicate whether the microphone is active or muted.

Refer to the following table:

Microphone

Status MX405 / MX410

Indicator MX405R / MX410R

Light Ring

Active Green Red

Muted Red/Flashing Green* Off/Flashing*

*To toggle between off and ashing, press PUSH and ON/OFF

PROGRAM simultaneously.

Locking Settings

Press ON/OFF PROGRAM and

SELECT simultaneously to lock

or unlock transmitter settings.

When locked, the current

settings cannot be manually

changed.

Note: Locking the transmitter

settings does not disable IR

frequency synchronization or

the High Pass/Low Cut lter.

To use with a logic enabled

receiver, you must perform

an automatic sync. The LCD

ashes “log” during sync. Once

in logic mode, the LCD ashes

“log” when powered up.

LOGIC MODE

Power off all transmitters.1.

Power on all receivers.2.

Begin with the rst transmitter. Open the battery cover and 3.

power it on.

Aim the IR sensor at the rst receiver IR port. The transmitter

should be no more than 15 cm (6 in.) from the receiver. Press

and hold the receiver SYNC button to send group and channel

data to the transmitter. The red LED on the transmitter will stop

ashing when programming is complete.

Power off the rst transmitter and repeat the synchronization

with each additional transmitter and receiver pair.

Press and hold the transmitter

1. SELECT button until the desired

group number appears.

Press

2. SELECT again and release it when the desired channel

number appears.

Automatic Frequency Synchronization

Manual Frequency Synchronization

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