Shure BLX4R User manual

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BLX4R -- Wireless System

IMPORTANT SAFETY INSTRUCTIONS

1. READ these instructions.

2. KEEP these instructions.

3. HEED all warnings.

4. FOLLOW all instructions.

5. DO NOT use this apparatus near water.

6. CLEAN ONLY with dry cloth.

7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accor

dance with the manufacturer’s instructions.

8. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other appara

tus (including amplifiers) that produce heat. Do not place any open flame sources on the product.

9. DO NOT defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades

with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider

blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an

electrician for replacement of the obsolete outlet.

10. PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles,

and the point where they exit from the apparatus.

11. ONLY USE attachments/accessories specified by the manufacturer.

12. USE only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.

When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. UNPLUG this apparatus during lightning storms or when unused for long periods of time.

14. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been dam

aged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen

into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has

been dropped.

15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vas

es, on the apparatus.

16. The MAINS plug or an appliance coupler shall remain readily operable.

17. The airborne noise of the Apparatus does not exceed 70dB (A).

18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing

connection.

19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

20. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.

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21. Operate this product within its specified operating temperature range.

This symbol indicates that dangerous voltage constituting a risk of electric shock is present within

this unit.

This symbol indicates that there are important operating and maintenance instructions in the litera

ture accompanying this unit.

WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or

other reproductive harm.

Quick Start Guide

1. 1. Connect receiver to power source.

2. Connect receiver to mixer or amplifier. Press the power button to turn on the receiver.

2. Press group button on receiver to perform a group scan.

3. 1. Install batteries and turn on transmitter.

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2. On the transmitter, set the group and channel to match the receiver. The RF bars and battery LED on the

receiver should illuminate.

If setting up additional systems, leave the first transmitter and receiver on. For each additional receiver,

manually set the group to match the first receiver. Note: The receiver will automatically perform a channel

scan to find an available frequency after the group has been selected. Set the transmitter frequency to

match the receiver.

4. If sound is too faint or distorted, adjust the gain accordingly.

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BLX4R Receiver

①Transmitter Battery LED

•Green = Runtime greater than 1 hour

•Red = Runtime less than 1 hour

②LCD Display

Displays receiver and transmitter settings.

③group Button

•Scan: push and release group button to scan for an open group and channel

•Manual: push and hold group button to select a group.

④channel Button

•Scan: push and release channel button to scan for an open channel

•Manual: push and hold channel button to select a channel.

⑤Power Button

Powers the receiver on/off.

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⑥Antenna Jack B

BNC connector for antenna B.

⑦DC Power Jack

For DC external power supply (12 to 15 V DC).

⑧Strain-relief loop for power cord

Secures power cord to receiver.

⑨Mic Out XLR audio output jack

Supplies microphone-level audio output.

⑩INST Out audio output jack

Supplies instrument-level audio signal.

⑪Volume Control

Use a screwdriver to adjust the output level.

⑫Antenna Jack A

BNC connector for antenna A.

Receiver LCD Screen

①TV Channel

TV channel for selected frequency.

②Receiver Lock

Indicates control and power lock enabled.

③Group

Displays selected group.

④Channel

Displays selected channel.

⑤RF Signal Strength

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Number of bars corresponds to RF signal strength. OL indicates signal overload.

⑥Audio Meter

Number of bars indicates audio signal level. OL indicates signal clipping.

⑦Active Antenna Indicator

Indicates active antenna for the diversity signal.

Transmitters

BLX1

①LED Indicator

Displays power and battery status (see table).

②power Switch

Toggles power on or off.

③4-Pin Microphone Input Jack (TA4 connector)

④Antenna

⑤group Button

Changes group setting.

⑥LED Display

Displays group and channel setting.

⑦channel Button

Changes channel setting.

⑧Battery Compartment

⑨Audio Gain Adjustment

Rotate to increase or decrease transmitter gain.

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BLX2

①LED Indicator

Displays power and battery status (see table).

②power Button

Push to turn power on or off.

③group Button

Changes group setting.

④channel Button

Changes channel and gain setting.

⑤LED Display

Displays group and channel setting.

⑥Identification Cap

⑦Battery Compartment

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Transmitter LED Indicators

LED Indicator Status

Green Ready

Rapidly Flashing Red Controls locked

Solid Red Battery power low (less than 1 hour remaining*)

Flashing Red and shuts off Batteries dead (change batteries to power on transmitter)

*For alkaline batteries only. For rechargeable batteries, solid red means the batteries are dead.

Single System Set Up

Before you begin, turn off all transmitters and turn on any equipment (other microphones or personal monitoring

systems) that could cause interference during the performance.

1. Press and release the group button on the receiver.

The receiver scans for the clearest group and channel.

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Note: If you want to stop the scan, push the group button again.

2. Turn on transmitter and change the group and channel to match the receiver (See Setting Transmitter Group

and Channel).

Once the system is set up, perform an audio check and adjust the gain if necessary.

Setting Transmitter Group and Channel

Transmitter group and channel must be manually set to match the receiver.

Group (letter)

1. Press and release the group button on the transmitter to activate the display. Press the group button again and

the display flashes.

2. While the display is flashing, press the group button again to advance to the desired group setting.

Channel (number)

If channel needs to be changed, follow the same procedure using the channel button instead of the group button.

Note:

• When the group and channel correctly match the receiver, the RF bars and battery LED on the receiver illumi

nate.

•After manual setup, the transmitter alternately displays the group and channel setting for about two seconds.

Multiple System Set Up

Up to 12 systems can operate simultaneously (band and RF environment dependent).

Important: Set up each system one-at-a-time. Once a receiver and transmitter are tuned to the same group and

channel, leave the transmitter powered on. Otherwise, scans from the other receivers will not detect that channel

as occupied.

Turn on any other equipment that could cause interference during the performance so it will be detected during the

group and channel scans in the following steps.

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Before you begin system set up, turn all receivers ON and all transmitters OFF.

For the first receiver:

1. Perform a group scan to find the group with the most clear channels.

2. Turn on the first transmitter and change the group and channel to match the receiver.

3. Leave the transmitter on and continue with the additional systems.

Note: If the selected group does not contain enough open channels, manually select group "d" when setting up

larger systems.

For each additional receiver:

1. Manually change the receiver to match the group setting of the first receiver. Recall that each time the group

setting is changed, a channel scan is automatically done.

2. Turn on the transmitter and change the group and channel to match the receiver.

3. Leave the transmitter on and continue to the next system.

4. Once all receivers are set up, perform an audio check on all microphones.

Manually Setting Receiver Group and Channel

The receiver group may need to be changed as part of a multiple system setup.

Group (letter)

1. Hold the group button on the receiver until the display begins to flash.

2. While the display is flashing, press the group button again to advance to the next group.

Note: Only the group setting will be displayed during the manual setup.

3. Once the desired group is reached, release the group button. The receiver automatically performs a channel

scan.

Channel (number)

Always use a channel selected by the channel scan. However, if necessary, the channel can be set manually. Fol

low the same steps above using the channel button instead of the group button.

Tips to Improve Wireless System Performance

If you encounter interference or dropouts, try the following suggestions:

•Choose a different receiver channel

•Reposition the receiver so there is nothing obstructing a line of sight to the transmitter (including the audience)

•Avoid placing transmitter and receiver where metal or other dense materials may be present

•Move the receiver to the top of the equipment rack

• Remove nearby sources of wireless interference, such as cell phones, twoway radios, computers, media play

ers, Wi-Fi devices, and digital signal processors

•Charge or replace the transmitter battery

•Keep transmitters more than two meters (6 feet) apart

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