Hamilton/Buhl ALS700 Manual de usuario

Assistive Listening System

INSTRUCTION MANUAL

Model #: ALS700

PLEASE READ THIS INSTRUCTION MANUAL COMPLETELY BEFORE

OPERATING THIS UNIT AND RETAIN THIS BOOKLET FOR FUTURE REFERENCE

HamiltonBuhl

80 Little Falls Road

Fairfield, NJ 07004

Phone: 800-631-0868

www.HamiltonBuhl.com

SAFE OPERATION

For safe operation please ensure to follow the instructions indicated below.

⚫Stop operation immediately if any liquid or solid object should fall into the cabinet.

⚫If the unit is not to be used for a long period of time, please ensure to disconnect

all power sources. Remove all batteries from the receiver battery compartment,

and unplug the transmitter AC/DC adapter from the wall outlet. Do not unplug the

AC/DC by pulling the cord.

⚫Place the transmitter only on a flat and even surface.

⚫Place the unit in an area with proper ventilation. Do not cover the unit with a

cloth or place on a carpeted surface.

⚫Do not use the unit in extremely hot, cold, dusty or humid environments

⚫Placing the unit in a humid environment may cause condensation to form

inside the unit. If this were to occur, remove all power sources and allow the

unit to sit at room temperature for 1-2 hours prior to usage allowing the

condensation to dissipate.

COMPLIANCE WITH FCC REGULATIONS

This device complies with Part 15 of the FCC Rules. Operation is subject to the

following two conditions:

(1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that

may cause undesired operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class

B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference

to radio communications. However, there is no guarantee that interference will not

occur in a particular installation. If this equipment does cause harmful interference to

radio or television reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or more of the

following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help.

PREPARATION FOR USE

UNPACKING YOUR ASSISTIVE LISTENING SYSTEM

This system includes the following items:

⚫ALSM700 Dual Channel Transmitter x 1

⚫ALSR700 Dual Channel Receivers x 6

⚫ASLB700 Mono Earbuds x 6

⚫Power Adapter x 1

⚫Instruction Manual x 1

⚫AAA Batteries x 18

⚫Carrying Care x 1

LOCATION OF CONTROLS

ALSM700 TRANSMITTER

ALSR700 RECEIVER

LINE IN JACK

CHANNEL SELECTION BUTTON

DC 5V JACK

PHONE JACK

MICROPHONE INPUT

CH1 INDICATOR

ANTENNA

CH2 INDICATOR

POWER ON/OFF SWITCH

GAIN CONTROL KNOB

POWER INDICATOR

POWER ON/OFF SWITCH

SIGNAL INDICATOR

BELT CLIP

CH1 & CH2 INDICATORS

BATTERY COMPARTMENT

CHANNEL SELECTION

BUTTON

VOLUME CONTROL

ALSM700 TRANSMITTER

POWERING THE TRANSMITTER

NOTE: Only use the supplied power adapter.

1. Insert the smaller end of the plug of the adapter to the back of the transmitter.

Please ensure the power switch is on OFF prior to inserting the plug.

2. Plug the large end of the adapter into an AC wall socket.

See diagram below for reference.

3. Turn on the Power by pressing the POWER SWITCH. Once turned on, the power

indicator will illuminate.

4. The transmitter “signal” indicator will illuminate to confirm that the transmitter is

broadcasting.

5. Press the CHANNEL button on the front panel to select your desired channel.

SETTING UP THE TRANSMITTER

MICROPHONE INPUT the 1/4” MIC IN jack on the back of the transmitter is designed

to accept either dynamic or electret microphones (microphone not included)

The 1/4” LINE IN jack enables you to connect directly to any audio source (Cable not

included).

See below diagram for reference.

ALSR700 RECEIVER

FEATURES & CONTROLS

⚫Volume Control

⚫Channel Button

⚫CH1 & CH2 Indicators

⚫Power Switch

⚫Phone Jack

POWERING THE RECEIVER

Insert 3 x “AAA” size batteries into the battery compartment on the back of the receiver.

Please ensure to insert the batteries in the correct polarity. To preserve battery life,

always turn ALSR700 receiver off when not in use. If the sound quality becomes weak

or distorted, try relocating the transmitter or adjusting the antenna. If the poor sound

quality persists, then replace battery of the receiver. The life expectancy from a regular

alkaline battery is up to 20 hours.

BATTERY WARNING

1.Be sure that the batteries are installed correctly. Inserting the batteries at the

wrong polarity may damage the unit.

2. Use only the size and type of batteries specified.

3. Do not mix old and new batteries.

4. Do not mix alkaline, standard (carbon-zinc) or rechargeable (nickel-cadmium)

batteries.

5. For better performance and longer operating time, we recommend the use of

alkaline-type batteries.

6. If the unit is not to be used for an extended period of time, remove the batteries.

Old or leaking batteries can cause damage to the unit and may void the warranty.

7. Do not try to recharge any non-rechargeable batteries not intended to be

recharged; they can overheat and rupture. (Follow battery manufacturer’s

directions).

8. Do not dispose of batteries in a fire, as the batteries may leak or explode.

OPERATING THE RECEIVER

Plug the ALSB700 mono earbuds into the phone jack on top of the receiver.

Turn on the receiver with the POWER SWITCH. The CH1 indicator will light up when

receiving a signal from the ALSM700 transmitter CH1. If the receiver is not on the

correct channel, the indicator will flash, when the receiver is on the correct channel

indicator light will be solid. Press the channel button on the receiver to change to the

correct channel.

Use the GAIN control to adjust the volume to your desired listening level. If there is no

sound, please ensure the VOLUME on the transmitter is at a reasonable level.

OPTIMAL PERFORMANCE

For an optimal performance, please ensure the following:

1) the antenna is fully extended

2) there are no large structures/obstacles blocking the line of sight between the

transmitter and the receiver.

3) the receivers have new batteries

4) the usage of the ALS700 is done in an environment of low interference (Areas

with multiple FM transmissions can possibly increase interference)

SPECIFICATIONS

OVERALL ALS700 SYSTEM PERFORMANCE

Frequency Response ……………………………100Hz –8KHz

Signal to Noise Ratio …………………………….41dB

Total Harmonic Distortion ……………………….< 0.5%

RF Carrier Frequencies ………………………….75.5MHz (Channel 1) —75.9MHz (Channel 2)

Frequency Stability ……………………………… > 0.005%

Modulation …………………………………………FM +75KHz max.

Operating Range …………………………………Up to150 feet line of sight

ALSM700 TRANSMITTER

Mic Input …………………………………………..Connector: 1/4” Phone jack

Impedance: unbalanced

Line Input …………………………………………Connector: 1/4” Phone jack

Impedance: 100K unbalanced

Power Output …………………………………….13dBm

Controls ……………………………………………Power On/Off, Volume Adjust,

Channel Select

Indicators ………………………………………….Power On LED, Signal LED,

CH1 LED, CH2 LED.

Antenna ……………………………………………Permanently mounted telescope

Power Requirement………………………………5VDC, regulated @200mA,

Adapter provided

Dimensions ………………………………………. 9(L) x 6.07(W) x 1.97(H) Inches

Weight ……………………………………………. TBD

ALSR700 RECEIVER

Controls ……………. …………………………….Power On/Off, Gain Adjust, Channel Select,

Audio output ………. …………………………….100mW

Connectors ……………………………………….3.5mm jack for earphone output

Earphones ………………………………………..Mono earbuds

Antenna ………………………………………….. Integral with earbud cord

Indicators …………………………………………CH1 LED, CH2 LED

Sensitivity ………………………………………...3uV for 12dB with squelch defeated

Squelches at 10uV for min. 50dB S/N ratio

Mute Threshold ………………………………….5 –8uV

Power Requirement……………………………..1.5V x3 pcs. AAA size battery

Battery Life ………………………………………Up to 20 hours w/alkaline battery

Dimensions …………………………………….. 2.54(L) x 1.32(W) x 3.92(H) Inches

Weight ……………………………………………TBD

Product Registration Instructions

Visit: www.HamiltonBuhl.com

Our mission:

Since our founding in 1993, HamiltonBuhl continues to evolve as a leader in

technology products for education and industry. Our products are embraced by

educators, corporate trainers, presenters, government agencies and hospitals for their

daily presentation, from classroom to the boardroom.

80 Little Falls Road, Fairfield, NJ 07004

1. Click on Customer Support

2. Click on Product Registration Form

3. Please fill out all fields marked with * to register your products

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