Inter-M LM-8000 User Manual

LM-8000

Remote Control with Audio In

Operation

Manual

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

WARNING

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

This symbol is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude to constitute a
risk of electric shock to persons.

This symbol is intended to alert the user to the presence of
important operation and maintenance (servicing) instructions
in the literature accompanying the appliance.

Caution: These servicing instructions are for use by qualified service

personnel only. To reduce the risk of electric shock, do not any
perform any servicing other than that contained in the operating
instructions unless you are qualified to do so.

Attentions: Pour prévenir les chocs électriques ne pas utiliser cette fiche

polarisée avec un prolongateur, une prise de courant on une
autre sortie de courant, sauf si les lames peuvent étre
insérées à fond sans en laisser aucune partie à découvert.

Warning

*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.”

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.

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

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LM-8000(REMOTE CONTROL WITH AUDIO IN)

Contents

Welcome ................................................................2

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

Short Form Instructions ..........................................2

Installation

Environment.........................................................4

Important Safety Instructions ...............................4

Features .................................................................6

Front Panel.............................................................7

Rear Panel .............................................................9

Priority of Broadcasting ........................................10

Operation..............................................................10

Connection ...........................................................13

Block Diagram ......................................................14

Specifications .......................................................15

Service

Procedures.........................................................16

Schematic ..........................................................16

Parts List ............................................................16

Warranty...............................................................16

2

LM-8000(REMOTE CONTROL WITH AUDIO IN)

Unpacking

Please take a few minutes to read this manual to
familiarize yourself with important information
regarding installation, product features, and operation.

As with most electronic devices, ORIGINAL
PACKAGING (OR EQUAL) IS REQUIRED in the
unlikely event that the product needs to be returned
for servicing.

Short Form Instructions

1. Do not connect the unit to the AC mains until some
preliminary settings are completed. AC mains
should only be switched on later in this procedure.
Ensure that the AC mains power and phantom
power switches are in the OFF position.

2. Set all the output volume lever down to the minimum.

3. Connect each zone OUTPUT of the PX-8000 to the
corresponding zone of an amplified loudspeaker system.

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!

3

LM-8000(REMOTE CONTROL WITH AUDIO IN)

4. Connect the LOCAL AUDIO SOURCES (tape deck,
CD player, tuner, etc..) to the BGM inputs on the
PX-8000 and turn the input gain control knobs (on
the rear panel) to half way.

5. Connect the AC mains power cord to the PX-8000
and switch the AC mains power to the ON position.
Switch ON the PHANTOM POWER if condenser
microphones will be used with this system.

6. Press the BGM select button located on the front panel
until the illuminated number displays the desired input
channel number for the local audio source.

7. Slowly side the output volume lever up on the front
panel to increase the volume being sent to the
amplifier for the loudspeaker system until the
desired level is reached. Obviously, if there is
distortion, feedback, or other cause for concern,
reduce the signal level of the input or the output.

8. Connect one or more LM-8000 to each of the
ZONE connectors as needed. There is no need to
set the address. Connect a remote audio source or
remote microphone to the LM-8000. Use the gain
and BGM select button on the unit instead of the
ones located on the PX-8000. The LM-8000 has a
higher priority than the PX-8000 and will override
the gain and BGM Selection of the PX-8000.

9. Connect one or more (maximum 4) RM-8000 units
to the remote mic input connector on the back of
the PX-8000. Connect a microphone to each RM-

8000. Select one or more zones using the
selectors on the front of the RM-8000. Speak into
the microphone and adjust the signal level.

10. Set the level for each zone as desired by using

the zone gain control on the PX-8000 or by using
the gain control of the LM-8000, if so equipped.
the PX-8000 to the corresponding zone of an
amplified loudspeaker system.

4

LM-8000(REMOTE CONTROL WITH AUDIO IN)

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

S3125A

5

LM-8000(REMOTE CONTROL WITH AUDIO IN)

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.

- AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND
VIBRATION
Keep the unit away from locations where it is likely to
be exposed to high temperatures or humidity-such as
near radiators, stoves, etc. Also avoid locations
which are subject to excessive dust accumulation, or
to vibration that could cause mechanical damage.

- AVOID PHYSICAL SHOCKS

Strong physical shocks to the unit may cause
damage. Handle the unit with care.

- DO NOT OPEN THE CASE OR ATTEMPT REPAIRS

OR MODIFICATIONS YOURSELF
This product contains no user-serviceable parts.
Refer all maintenance to qualified Inter-M service
personnel. Opening the case and/or tampering with
internal circuitry voids the warranty.

- ALWAYS POWER OFF BEFORE MAKING CONNECTIONS

Always turn the AC mains OFF before connecting or
disconnecting cables. This is important to prevent
damage to the unit itself as well as other connected
equipment.

- HANDLE CABLES CAREFULLY

Always plug and unplug cables (including the AC
mains power cord) by gripping the connector, not the
cord.

- CLEAN WITH A SOFT DRY CLOTH

Never use solvents such as benzine or paint thinner
to clean the unit. Wipe clean with a soft, dry cloth.

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LM-8000(REMOTE CONTROL WITH AUDIO IN)

Features

■

■

Convenient installation and construction without need
of ID setting.

■■

■

Adoption of RS-422 communication method to

support a long distance.

■

■

Remote control for zone volume and selection of

BGM.

■■

■

Independent local MIC and BGM broadcasting.

7

LM-8000(REMOTE CONTROL WITH AUDIO IN)

1

2

3

4

5

6

7

8

Front Panel

11

11.MIC INPUT VOLUME

Adjusts MIC input volume.

22

22.MIC INPUT JACK

MIC input terminal. It is recommended to input balance.

33

33.

LINE INPUT JACK

LOCAL BGM input terminal.

44

44.LINE INPUT VOLUME

Adjusts volume of LOCAL BGM input.

55

55. BGM DISPLAY

Displays input channel of the MAIN BGM output to the
relevant zone of the PX-8000. A DOT (.) display turns
on if control right is endowed to LM-8000.

8

LM-8000(REMOTE CONTROL WITH AUDIO IN)

66

66. BGM SELECT BUTTON

Switch to select MAIN BGM input channel.

77

77. ZONE VOLUME ENCODER

Volume to adjust BGM output volume in the area
where LM-8000 is installed.

88

88. BGM LIST

Position to write the name of each BGM Source input
so that the user can easily know.

11

11. MODULAR JACK

9

LM-8000(REMOTE CONTROL WITH AUDIO IN)

1

Rear Panel

PIN Number

1
2
3
4
5
6
7
8

Functions

Color

Tx- BLU
Tx+ BLU/WHT
Rx- GRN
Rx+ GRN/WHT

GND ORG

VCC ORG/WHT
Audio+ BRN
Audio- BRN/WHT

10

LM-8000(REMOTE CONTROL WITH AUDIO IN)

Priority of Broadcasting

This system broadcasts according to following priority:

- PAGING MIC > FIRE ALARM (REC&PLAY IC) > RM­8000 MIC > LM-8000 > PX-8000 BGM

- The PX-8000 BGM broadcasting becomes slowly
MUTE if Local broadcasting is done in the LM-8000
during the PX-8000 BGM broadcasting.

Operation

■

■

LM-8000 CONNECTION

- Connect to the LM-8000 connection terminal on the
rear side of PX-8000 by using CATEGORY5 (UTP)
material.

- The connection jack numbers of the connected PX­8000 show output area and ensure connection of up
to 300M.

- Connection of 8 sets of LM-8000 to a PX-8000 is allowed.

- Immediate use is allowed by automatically recognizing
LM-8000 without need of separate ID setting.

- If powering on, 0, 1, 2, 3, 4, 5, 6, 7, 8, A, B, C, D, E
and F are orderly displayed on the BGM display
window of LM-8000 and the BGM number is
displayed for the relevant area.

PX-8000 LM-8000

11

LM-8000(REMOTE CONTROL WITH AUDIO IN)

- You can select BGM or adjust BGM output volume of
using a LM-8000 if a DOT(.) is displayed on the LM­8000 BGM Display Window.

- You may endow with or release the control right of
LM-8000 using the WALL CTRL button on the front
side on the PX-8000. If the right is endowed to LM­8000, the button of PX-8000 lights and DOT(.) is
displayed on the LM-8000 BGM Display Window.

- Check connection status and the unit if “E” continues
to flash on the display window.

※

Turn the encoder volume clockwise until checking
is done that volume is changed since volume is set
to minimum for the initial use.

■■

■

CHANGE OF MAIN BGM AND ADJUSTMENT OF
VOLUME IN OUTPUT AREA USING LM-8000

- Endow with the control right of LM-8000 by pressing
the WALL CTRL button of PX-8000.

- Check that the BGM number is changed, by
operating the BGM Selection Button of LM-8000.

- Same BGM number is displayed on the front BGM
Display Window of PX-8000 and LM-8000.

- Adjust local output volume using a volume adjustment
encoder.

※

The volume adjustment encoder of LM-8000 and
the slide volume (FADER) on the front side of PX­8000 unit control the BGM broadcasting volume of
the output area. A paging MIC broadcasting and
the local output volume of RM-8000 are not
controlled with the encoder and the slide volume.

12

LM-8000(REMOTE CONTROL WITH AUDIO IN)

■■

■

INDEPENDENT LOCAL BGM AND MIC BROADCASTING
USING LM-8000

Independent local broadcasting is possible if using
LM-8000. You can perform the desired MIC
broadcasting or listen to BGM music in respective
area other than the Main BGM connected to PX-

8000.
LOCAL BGM&MIC of LM-8000 has higher priority
than Main BGM of PX-8000 and thus main BGM
automatically becomes MUTE during the
independent local broadcasting of LM-8000.

- Connect the desired MIC or sound source unit to
MIC or LINE input.

- Adjust volume by using the respective volume to
adjust input sound.

- Immediate broadcasting is allowed and the local
output volume is adjusted by using encoder of LM­8000 or a slide volume of PX-8000.

- Main BGM on the BGM Display Window becomes
MUTE when performing independent LM-8000
broadcasting. If there is no local broadcasting, Main
BGM is broadcast while MUTE is released.

※

A condenser MIC cannot be used for the LM-8000

LOCAL MIC broadcasting.

※

Display status of the BGM Display Window for
LM-8000 is as follow:

For PX-8000 Paging broadcasting P
For PX-8000 FIRE ALARM F
For RM-8000 broadcasting R

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LM-8000(REMOTE CONTROL WITH AUDIO IN)

Local BGM

PX-8000

LM-8000 LM-8000 LM-8000 LM-8000 LM-8000

Connections

14

LM-8000(REMOTE CONTROL WITH AUDIO IN)

Block Diagram

15

LM-8000(REMOTE CONTROL WITH AUDIO IN)

Specifications

LM-8000

Audio Output 0dB(Balanced)

Audio Input

Local BGM(LINE) -10dB

MIC -50dB(Balanced)

Frequency

BGM(60Hz ~ 15kHz) ±3dB

Response

MIC(100Hz ~ 10kHz) ±3dB

S/N

BGM Better than 75dB

MIC Better than 65dB

T.H.D.

BGM Less than 0.05%

MIC Less than 0.05%

Priority Control

Paging MIC > DRP > RM1 > RM2>
RM 3> RM 4 > LM-8000 > Main BGM

Serial

Communication Speed

9600 bps

Interface

Communication Distance

Maximum 300m

(RS-422

)

(using UTP Cat5)

Operation Temperature

-10℃ ~ +40℃

Power Source DC 24V, 50mA

Weight (SET) 130g/0.28lb

Dimensions (SET)

70(W)x114(H)x52(D)mm

2.8(W)x4.5(H)x2.0(D)in

* Specifications and design subject to change without notice.

16

LM-8000(REMOTE CONTROL WITH AUDIO IN)

Service

Procedures

Ensure the problem is not related to operator error, or
external system devices, 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.

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 or the authorized
Inter-M Distributor for your specific country or region.

Note

MADE IN KOREA

www.inter-m.com

August 2007 9000004120

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 : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [e-mail]

INTER-M Corporation

SEOUL OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [e-mail]