Inter-M PA-1000B User Manual

Operation Manual

Public Address Amplifier/Receiver

PA-1000B/1000BR

PUBLIC ADDRESS AMPLIFIER/RECEIVER

Welcome

Welcome

A personal welcome to you from the management and employees of Inter-M

All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.

We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.

Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!

This symbol is int ended to ale rt the user to the

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

C

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Caution: To prevent electric shock do not use this (polarized) plug with

Attentions: Pour prévenir les chocs électriques ne pas utiliser cette

WARNING

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

*Do not install this equipment in a confined space such as a book case or similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near

water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than
objects do not fall and liquids are not spilled into the enclosure through openings.”

Service Instructions

*Worded: "Caution: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not

perform any servicing other than that contained in the operating instructions unless you are qualified to do so."

*Location: Instruction Manual.

NOTE : This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These

limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the interference at his own expense.

presence of uninsulated “dangerous voltage” within
the product’s enclosur e that ma y be of sufficient
magnitude to constitute a risk of electric shock to
persons.

This symbol is int ended to ale rt the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.

an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.

fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre inséré es à fond sans en lai sser aucune par tie à
découvert.

* It can be heated up if you use this product in closed box or ill-ventilated place.

PUBLIC ADDRESS AMPLIFIER/RECEIVER

Contents

Contents

Unpacking .......................................................................................................................................2

Installation

Environment....................................................................................................................................2

Important Safety Instructions.............................................................................................................2

Features............................................................................................................................................3

Accessories.....................................................................................................................................3

Operation ........................................................................................................................................3

Front Panel ......................................................................................................................................4

Tuner Section ...................................................................................................................................5

Rear Panel .......................................................................................................................................6

Connecting Speakers.....................................................................................................................8

Application of The Antenna........................................................................................................10

Applications ..................................................................................................................................11

Block Diagram ..............................................................................................................................12

Specifications ................................................................................................................................13

Service

Procedures....................................................................................................................................14

Schematic.....................................................................................................................................14

Parts List .......................................................................................................................................14

Variations and Options ...............................................................................................................14

Warranty .......................................................................................................................................14

PA-1000B/1000BR

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PUBLIC ADDRESS AMPLIFIER/RECEIVER

S3125A

Unpacking

Unpacking

Although your PA-1000B or PA-1000BR is neither complicated nor difficult to operate, we recommend you take
a few minutes to read this brief manual and familiarize yourself with the important information regarding
product features, setup and operation.

As with most electronic devices, we strongly recommend you retain the original packaging. In the unlikely event
the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.

Installation

Installation

Environment

Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.

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. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.

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 wide
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 the 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 damaged 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.

S3125A

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PA-1000B/1000BR

Features

Features

- VERSATILE AND CONVENIENT

Two Mic input channels with both XLR and phone jack, and an Aux input channel.

- ANNOUNCEMENT CHIME

Convenient four-tone chime for use with announcements. Can be operated remotely.

- PRIORITY MUTING

Mic1 input and chime mute other inputs when in use. Mute level is adjustable via rear panel control.

- TELEPHONE INPUT/MUSIC-ON-HOLD (PA-1000BR ONLY)

Telephone input with music-on-hold function for connection with telephone system.

- DIGITAL TUNER

Easy-to-use, fully digital AM/FM tuner with 30 memory locations for storing your favorite stations.

PUBLIC ADDRESS AMPLIFIER/RECEIVER

Accessories

One detachable AC power cord is provided for use with this product.

Operation

Operation

Make certain that speakers and input sources are properly connected before switching on.

Keep volume levels at minimum gain before switching on.

NOTE: The system’s operation is delayed by approximately three seconds after pressing the AC Mains power

switch. This is due to the built-in protection circuitry, designed to protect the speakers and other system
components.

PA-1000B/1000BR

3

PUBLIC ADDRESS AMPLIFIER/RECEIVER

PA

1000BR

PUBLIC ADDRESS RECEIVER

Front Panel

Front Panel

1. MIC 1 AND MIC 2 LEVEL

These knobs control the volume level of the inputs connected to the rear-panel Mic 1 and Mic 2 inputs.

2. AUX VOLUME LEVEL

This knob controls the volume level of the input connected to the rear-panel Aux Input.

3. BASS CONTROL

This knob controls the amount of cut(decrease) or boost(increase) to the lower frequencies. It is a 100Hz
shelving type control at ±10dB.

4. TREBLE CONTROL

This knob controls the amount of cut(decrease) or boost(increase) to the higher frequencies. It is a 10kHz
shelving type control at ±10dB.

5. MASTER VOLUME

This rotary switch controls the overall output volume of the amplifier’s output signal.

6. CHIME BUTTON

Pressing this switch activates the chime circuitry.

7. POWER SWITCH

Pressing this switch switches the unit on, as indicated by the power indicator LED above the switch. Pressing it
again switches the unit off.

8. OUTPUT LEVEL DISPLAY

This multi-segment LED meter indicates the amplifier’s output level in RMS.

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PA-1000B/1000BR