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
1
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
2
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.
4
PA-1000B/1000BR
Tuner Section (PA-1000BR ONLY)
213564
Tuner Section
PUBLIC ADDRESS AMPLIFIER/RECEIVER
1. TUNING FREQUENCY DISPLAY
Displays the current frequency of the tuner.
2. TUNING LED (PA-1000BR ONLY)
This indicator lights when the digital tuner has locked onto a signal.
3. AM/FM BAND SELECTOR AND MEMORY SWITCHES (PA-1000BR ONLY)
This AM/FM Band Selector Switch is used to select the AM or FM frequency band. Pressing the Memory
Switch followed by one of the six Address Select switches will enter the currently selected frequency into the
designated memory address.
4. ADDRESS SELECT SWITCHES (PA-1000BR ONLY)
These switches select between the six memory address banks used to store radio frequency presets. Each bank
can hold up to five individual presets – three FM (F1, F2, F3) and two AM (A1, A2), for a total of 30 presets.
5. UP AND DOWN SWITCHES (PA-1000BR ONLY)
Pressing these switches will move the tuner to the next active frequency. Holding the switch down for more
than one-half second will activate “Auto-Scan” mode, causing the tuner to scan, pausing for a few seconds at
each active frequency. Pressing the Up or Down switch again will de-activate “Auto-Scan” mode.
6. TUNER LEVEL (PA-1000BR ONLY)
This knob controls the tuner output level. Rotating the knob fully counter-clockwise switches the tuner section off.
PA-1000B/1000BR
5
PUBLIC ADDRESS AMPLIFIER/RECEIVER
Rear Panel
Rear Panel
1. GND TERMINAL
This grounding terminal is provided for connecting with the chassis of a turntable or other input device to
reduce hum and other ground loop noise. It may also be connected to a true earth ground, such as an AC
third-pin ground or water pipe, to further reduce ground loop noise.
2. AC FUSE HOLDER
This holder contains the AC overload protection fuse. If the fuse has blown out, replace it with a fuse of the
same type and rating.
3. SPEAKER OUTPUT TERMINAL STRIP
Connect speakers whose combined impedance is equal to or higher than the rated output impedance, as
shown below.
Impedance/Output Voltage
USA/CANADA & Associated Version EC & Associated Version
4Ω/11V 8Ω/15V 21Ω/25V 163Ω/70V 4Ω/11V 8Ω/15V 163Ω/70V
4. AM/FM ANTENNA TERMINALS (PA-1000BR ONLY)
The FM terminal accepts a 75 Ohm Coaxial cable that terminates at an FM antenna.
The AM terminal accepts the lead wires of the provided AM antenna (or other suitable antenna). Antenna
position may affect performance so it may be necessary to reposition the antenna for the best reception.
5. AC POWER CABLE
Connect this cable to your AC outlet.
333Ω/100V
6
PA-1000B/1000BR
PUBLIC ADDRESS AMPLIFIER/RECEIVER
6. EXTERNAL CHIME TERMINAL
These terminals are provided for connection of an external chime generator, such as the Inter-M PE-9103N. It
ay also be used for remote control of the chime signal.
m
7. TELEPHONE IN TERMINAL
These terminals are used to connect to a telephone exchange system for paging purposes.
NOTE: When signal is present on the Telephone Input terminal, all other input signals (except Mic 1 and
Chime) are muted.
8. MUSIC-ON-HOLD/TEL IN LEVEL CONTROLS
The Tel In Control regulates the volume of the signal from an external telephone signal connected to the Tel In
Terminal.
The Music-on-Hold Control regulates the volume of the signal from the internal tuner (PA-1000BR only), as fed
to the telephone connection.
9. LINE IN/OUT JACKS
These are line-level input and output on unbalanced RCA jacks, provided for connection of external sources
such as CD or cassette deck.
10. AUX INPUT
Input on unbalanced 1/4" phone jack accepts a standard line-level input. The level of this input is controlled
by the front-panel Aux Level control.
11. MIC 2 INPUTS
Inputs on balanced XLR and 1/4" phone jacks accept a standard mic-level or line-level input. The level of this
input is controlled by the front-panel Mic 2 Level control.
12. MUTE CONTROL
When signal is present at Mic 1 or Chime input, all other inputs are muted. This control adjusts the level of
Mic 1 and Chime output when muting is in use.
13. MIC 1 INPUTS
Inputs on balanced XLR and 1/4" phone jacks accept a standard mic-level or line-level input. The level of this
input is controlled by the front-panel Mic 1 Level control.
PA-1000B/1000BR
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PUBLIC ADDRESS AMPLIFIER/RECEIVER
Connecting Speakers (EC & Associated Version)
Connecting Speakers
Before connecting speakers disconnect the AC power cable. Make certain that the total impedance is not less
than the rated impedance indicated.
For 4Ω low-impedance speakers, connect in parallel, with the negative (-) connectors to the COM terminal and
the positive (+) connectors to the 4Ω terminal. See Figure 2-1 below.
For 8Ω low-impedance speakers, connect in parallel, with the negative (-) connectors to the COM terminal and
the positive (+) connectors to the 8Ω terminal. See Figure 2-2 below.
FOR 4Ω TERMINAL
(Figure 2-1) (Figure 2-2)
For high-voltage distributed systems, connect with matching transformer as per Figures 2-3 and 2-4 below. Be
certain that the total impedance does not equal less than the rated impedance.
FOR 70V TERMINAL
FOR 8Ω TERMINAL
FOR 100V TERMINAL
Be sure that total impedance is not less than rated impedance.
8
PA-1000B/1000BR
Be sure that total impedance is not less than rated impedance.
(Figure 2-3) (Figure 2-4)
PUBLIC ADDRESS AMPLIFIER/RECEIVER
Connecting Speakers (USA/CANADA & Associated Version)
Connecting Speakers
Before connecting speakers disconnect the AC power cable. Make certain that the total impedance is not less
than the rated impedance indicated.
For 4Ω low-impedance speakers, connect in parallel, with the negative (-) connectors to the COM terminal and
the positive (+) connectors to the 4Ω terminal. See Figure 2-1 below.
For 8Ω low-impedance speakers, connect in parallel, with the negative (-) connectors to the COM terminal and
the positive (+) connectors to the 8Ω terminal. See Figure 2-2 below.
FOR 4Ω TERMINAL
(Figure 2-1) (Figure 2-2)
For high-voltage distributed systems, connect with matching transformer as per Figures 2-3 and 2-4 below. Be
certain that the total impedance does not equal less than the rated impedance.
FOR 25V TERMINAL
FOR 8Ω TERMINAL
FOR 70V TERMINAL
Be sure that total impedance is not less than rated impedance.
(Figure 2-3) (Figure 2-4)
Be sure that total impedance is not less than rated impedance.
PA-1000B/1000BR
9
PUBLIC ADDRESS AMPLIFIER/RECEIVER
UNBAL / 75Ω
LOOP
ANT.
ANT
FMAM
Application of The Antenna (PA-1000BR ONLY)
Application of The Antenna
- FM RECEIVING ANTENNA
The electric wave of FM broadcasting is weakening in hills and valleys, around buildings and in ironreinforced buildings.
- INSTALLATION OF ANTENNA EXCLUSIVELY FOR FM
Listening to the broadcasting, fix the antenna after deciding the location and the direction so that the
reception may be optimized.
- INSTALLATION OF ANTENNA USING THE COAXIAL CABLE
Noisy reception may occur in built-up areas and factory sites as well as around power cables. This may
be the case even when an antenna is used exclusively for FM. In these regions, install the antenna using
75Ω coaxial cable.
- INDOOR ANTENNA
In the regions where FM broadcasting is heard comparatively well due to the near distance to the station
or wooden structure, you can receive broadcasting of good quality by using T-type antenna.(using
matching trans:300Ω/75Ω)
- AM LEAD ANTENNA
Fix one end of a six to eight metre length of vinyl-coated single cable to the AM terminal and the other
end to a high place like a wall.
- AM OUTDOOR ANTENNA
Install the vinyl-coated cable to an outdoor place if the AM reception is not good enough.
- AM LOOP ANTENNA
Connecting the feeder of the loop antenna of the terminal of 300Ω.
Listening to the broadcasting, fix it after deciding the location and the direction so that the receipt
condition may be optimum.
10
PA-1000B/1000BR
Applications
(PA-1000BR ONLY)
(
PA-1000BR ONLY)
Applications
PUBLIC ADDRESS AMPLIFIER/RECEIVER
PA-1000B/1000BR
11
PUBLIC ADDRESS AMPLIFIER/RECEIVER
Block Diagram
Block Diagram
12
PA-1000B/1000BR
PUBLIC ADDRESS AMPLIFIER/RECEIVER
Specifications
Specifications
PA-1000B PA-1000BR
Rated Output Power 30W (RMS)
Frequency Response 120Hz-15kHz
T.H.D (at 1kHz Rated Output) Less than 1%
Tone Control (100Hz, 10kHz) ±10dB
Input Sensitivity
/Impedance Aux In 0.775V/10kΩ
Line Out/Impedance 1V/600Ω
Music On Hold/Impedance 0.775V/600Ω
TUNER SECTION (PA-1000BR Only)
Tuning Range EC & Associated
Antenna Input
Usable Sensitivity
S/N
Operating Temperature -10˚C ~ +40˚C
Power Source 100–120VAC or 220–240VAC; 50/60Hz
Power Consumption 45W 55W
Weight 4.6kg/10lb 4.8kg/11.5lb
Dimensions 300(W) x 88(H) x 260(D)mm/11.8(W) x 3.5(H) x 10.2(D)in
Mic 1 and 2 1mV/10kΩ, Balanced Phone, 0.3mV/600Ω, Balanced XLR
Tel In EC & Associated 0.775V/600Ω
USA/CANADA &
Associated
Amp In 1V/10kΩ
-
USA/CANADA & Associated
(Supplied AC mains transformer depends on country requirements)
-
-
-
-
0.3V/600Ω
FM : 87.5-108.0MHz,
AM : 522-1620kHz
FM : 87.5-108.0MHz,
AM : 530-1720kHz
FM : 75Ω Unbal,
AM : Low Impedance Loop Antenna
FM: Less than 10uV,
AM: Less than 100uV
FM : Better than 50dB,
AM : Better than 40dB
* Specifications and design subject to change without notice.
PA-1000B/1000BR
13
PUBLIC ADDRESS AMPLIFIER/RECEIVER
Service
Service
Procedures
Ensure the problem is not related to operator error, or system devices that are external to this unit. Information
provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is related to the product contact your warranty provider as described in the warranty section of this
manual.
Schematic
A Schematic is available by contacting your warranty provider.
Parts List
A Parts List is available by contacting your warranty provider.
Variations and Options
Variations and Options
Variations
Products supplied through legitimate sources are compatible with local AC power requirements.
Options
No optional items are available for this product.
Warranty
Warranty
Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions
of warranty for a given product may be determined first by locating the appropriate country which the product
was purchased in, then by locating the product type.
To obtain specific warranty information and available service locations contact Inter-M directly(in Korea or the
USA) or the authorized Inter-M Distributor for your specific country or region.
14
PA-1000B/1000BR
NOTE
NOTE
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.
Inter-M Americas, INC.
13875 ARTESIA BLVD. CERRITOS, CA 90703 USA
TEL : +1-562-921-0313, FAX : +1-562-921-0370
Home Page : http://www.inter-m.net, E-mail : info@inter-m.net
Inter-M Corporation
SEOUL OFFICE : 653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : 82-2-2289-8140~8, FAX : 82-2-2289-8149
Home Page : http://www.inter-m.com, E-mail : overseas@inter-m.com
MADE IN CHINA
November 2010 123231
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