Nady Systems WA-120 Manuel utilisateur

WA-120

Portable Wireless PA

OWNER’S MANUAL

CONTENTS

INTRODUCTION....................................................................................2

CONTROLS AND CONNECTIONS .......................................................3

OPERATING INSTRUCTIONS FOR THE NADY WA-120 ....................5

WA-120 WIRELESS MICROPHONE RECEIVER OPERATION ...........8

WHT HANDHELD MICROPHONE TRANSMITTER..............................9

WLT LAVALIER/HEADMIC BODYPACK TRANSMITTER....................9

SPECIFICATIONS................................................................................12

SERVICE..............................................................................................12

Thank you for purchasing a Nady WA-120 Wireless Portable P.A.—and

congratulations on your choice. The WA-120 is the most affordable

and compact of the popular line of Nady wireless P.A.’s. Ideal for

many applications, including use in classrooms, conference/meeting

rooms, churches, health clubs and small auditoriums, it is powerful, yet

lightweight and easily portable. We are sure you will nd this versatile

system a powerful and useful tool for your presentations.

The Nady WA-120 includes a full-range speaker system with built-in

amplier, mixer, and high band VHF wireless receiver.

Special features include:

• Powerful 20W maximum audio power output

• Built-in echo/reverb

• 1/4” unbalanced input jacks (1 MIC, 1 AUX) and one 1/4” unbalanced

RECORD OUT, Volume, treble and bass and echo/reverb controls

• Wireless system features noise-reduction companding circuitry for

quietest operation with a wide dynamic range.

• Available with choice of WHT handheld Mic or WLT Lavalier/headset

Mic bodypack transmitters. One WA 120 wireless P.A. and one WHT or

WLT Transmitter on the same channel comprise a system.

• Powered externally with provided Universal Voltage 110V-240V AC

adapter, or internally with either 8 “D” cell alkaline or rechargeable

batteries or the optional RB-120 rechargeable battery

• Convenient internal built-in charger for optional RB-120 rechargeable

battery

• Small and lightweight—only 8.3” x 10.6” x 5.4” (211 x 270 x 137mm)

and 5.3 lbs. (2.4 Kg)

INTRODUCTION

MIC/TS

1. Wireless mic receiver antenna Pull out and extend fully for

optimum range

2. Power ON/OFF switch

3. MIC and AUX signal input jacks ¼” TS (mono)

4. Speaker

5. Power ON LED indicator

6. RF ON LED indicator Indicates reception of transmitter signal

7. Volume controls

8. Tone controls

9. Line/Record out jack Provides signal for recording or additional

amplication

10. Echo level control Controls the amount of echo/reverb in the

channel signal

56 7

CONTROLS AND CONNECTIONS

LINE/REC OUT

11. Storage compartment for AC adapter or optional

RB-120 12VDC rechargeable battery

12. Mounting hole for use with optional MST-4B tripod stand

13. Battery-mount for 8 X “D” batteries Used for internal battery

operation of unit

14. External DC input jack

15. RF mute threshold (squelch) adjust

16. Battery charging LED indicators

OPERATING INSTRUCTIONS FOR THE NADY WA-120

Powering the WA-120

• External Adapter

Plug the external provided AC/DC Adaptor into the External DC input

jack (14) socket. Then plug the AC/DC adapter plug into a standard

115VAC or 240VAC outlet (The AC adapter will detect the line voltage

automatically). Turn on the unit using the Power switch (2).

(Note: To avoid damaging your unit, use only the provided AC adapter

connected to the power input jack.)

• RB-120

The WA-120 can be powered internally using the optional RB-120 re-

chargeable battery. Observe the RB-120 battery positive (+) and nega-

tive (-) polarities when installing it into the Optional RB-120 recharge-

able battery slot (11) while the WA-120 is connected to AC power with

the provided AC adapter. If the Battery charging LED (16) turns red,

the RB-120 is not fully charged and should be allowed to charge while

the WA-120 is powered by the AC adapter. (Note: Turning off the WA-

120 Power switch (2) will allow the RB-120 to recharge more quickly.)

If the Battery charging LED indicator (16) lights green, the RB-120 is

fully charged and ready to power the WA-120 alone. Shut off the Power

switch (2) and disconnect the AC adapter. Turn the unit back “ON” and

the RB-120 will power the unit while still connected to the optional RB-

120 rechargeable compartment (11). The RB-120 can be easily stored in

the Storage compartment (11) while in use or transporting.

(Note: Connecting the AC adapter will automatically charge the internal

RB-120 battery power.)

(Note: Connecting the AC adapter will automatically disconnect the inter-

nal “D” cell batteries. The WA-120 does not recharge “D” cell batteries.)

• (8x) “D” Cell Batteries

The WA-120 can also be powered internally with (8x) ”D” cell batteries.

Insert the batteries while observing the correct polarity as marked. For

longest operation use only alkaline or rechargeable batteries. Replace

the batteries when the output volume drops or the range of the wireless

decreases.

(Note: The WA-120 does not recharge “D” cell batteries.)

Then MIC input (3) can be used to connect a hard wire MIC.

The REC OUT (9) can be connected to a recording device or to the input

jack of a power amplier to further amplify and enlarge the audio power.

For stereo to mono conversion of the signals, wire the connecting cord

as per the the following illustration:

Attention:

1. Iffeedback(howlingsound)occurs,tryrstturningdownthe

treble control (8). If feedback still is present, try turning down the

volume (7) or repositioning the WA-120 with respect to the wired

or wireless mic being used.

2. Extend the antenna (1) fully whenever using the wireless micro-

phone to ensure optimum performance and maximum range.

Wiring Illustration

Stand Mounting the WA-120

The WA-120 can be mounted on

the optional MST-4B aluminum

tripod stand for convenient place-

ment in a higher position. Contact

your dealer or the Nady service

department. (See Page 12)

The WA-120 contains a built-in high quality quartz-locked, xed

frequency VHF wireless receiver precisely matched to the Nady WHT

or WLT transmitter supplied; therefore generally no adjustments

besides audio volume are required. In high RF activity environment, the

MUTE (16) also needs adjusting to eliminate interference.

• After the amplier has been turned on by the main Power switch

(2), turn the wireless receiver’s MIC/TS Volume control (7) slightly

clockwise.

• Switch on the wireless microphone and the RF receiving indicator (6)

will light up indicating normal reception.

• Adjust the MIC/TS Volume control (7) clockwise (CW) for the desired

audio level.

• The MUTE control (16) affects the usable distance. Turn CCW for

maximum range or CW for minimum range, which also reduces the

chance of RF interference and resulting audio noise at the limit of

the operating range or when transmitter is off. A range walk test will

determine the required setting.

Note: If using more than one wireless microphone (handheld and/

or bodypack) on the same frequency, switch only one on at a time.

Microphones on the same frequency will interfere with each other.

However, one wireless microphone can be used with two or more

WA-120 wireless ampliers with the same frequency simultaneously to

increase the overall sound level.

WA-120 WIRELESS MICROPHONE RECEIVER OPERATION

WHT Handheld Microphone Transmitter

Battery LED

Power Switch

Battery Tube

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