Elan MOD3000 Bedienungsanleitung

MOD3000

3-CHANNEL DIGITAL MODULATOR

The ELAN MOD3000 3-Channel Digital

Modulator makes it easy to distribute any three

audio/video sources to unused channels over your

multi-room cable wiring. Now you can enjoy

clear, clean pictures from a security camera, laser disc,

video tape or any other video signal on any channel of any

television set throughout your home!

Because the MOD3000 merges these video sources into

your existing cable signal “before” the signal reaches your

television sets, the new channels will be available on every

set connected to your coax cable! You can even distribute

the audio signal from your stereo system over an unused TV

channel for music to any room that has a cable connection

to a television set.

BASIC INSTALLATION INSTRUCTIONS

The MOD3000 Digital Modulator is easy to hook up to

your existing cable network! The diagram on the next page

gives you an overview of source connections, and where and

how the MOD3000 connects to your existing cable network.

First you will need to determine what channels are

“unused” by your cable provider. Most late model TV’s have

a programmable “channel search” feature that determines

what channels are present and detected by your television

set(s). These unused channels are usually grouped by the

cable company into blocks or “ranges”. Within these

“ranges” will be the three (3) channels to which you will

want to map your video sources.

Make sure the MOD3000 is

not plugged into a 110V wall

jack. Find the Channel Range

Selection DIP switches (1-4)

located to the right of the power

cord on the back panel of the

unit. From the channel ranges

available on the table above the

DIP switches, select your range

and band by configuring the DIP

switches in the correct position. The 3 band prefixes on the

table are ULTRA, UHF and PAL. If you are modulating to

unused cable channels, select channel ranges with the

Switch Band/Channels

ULTRA (65-135)

UHF (14-78)

UHF (14-39)

+ULTRA (91-135)

PAL-K (13-56)

PAL-G (21-69)

DIP SWITCHES

1 2 3 4

INSTALLATION INSTRUCTIONS

To connect the MOD3000 to your existing cable

network, you will need a 2 to 1 video signal splitter. For

maximum performance, we recommend the ELAN

VDS200 signal splitter due to its outstanding design and

product quality. Do not let the markings on the splitter

confuse you, just follow the connecting instructions in the

next paragraph.

Connect the video cable (supplied) to the connector

marked “RF OUT” on the rear of the MOD3000. Connect

the other end to one “output” of the splitter. Connect the

existing CATV/antenna cable to the other “output” of the

splitter. To the “input” of the splitter, connect the cable that

feeds your TV or additional video splitters that distribute

video signal to all televisions in your home.

Power up the MOD3000. The LED display on the front

panel will show the currently selected input source (A, B, or

C) and the channel to which that source is currently being

sent. Turn on your TV, then press the SELECT button (located

on the top panel over the display) on the MOD3000 to

cycle the display light to the A, B, or C input whose channel

you wish to set. Once you have scrolled to your selected

source input, press and hold the SELECT button down for

two seconds until the A/B/C light on the front panel blinks.

This puts the MOD3000 in the “Channel Change” mode for

that input source. Press the UP or DOWN button to scroll

to the desired channel number.

NOTE: Again, for best picture performance, you are

required to leave at least 2 unused channels between

each modulated channel!

When satisfied, press the SELECT button again to exit

channel-change mode (the MOD3000 will automatically

exit channel-change mode after 5 seconds of inactivity).

Repeat the above process to set your two remaining video

sources. When all video

sources are “ON” and

transmitting signal to the

MOD3000, the “VIDEO

IN” LED’s located on the

front of the MOD3000

should be lit. Check that

each source is present

and properly modulated to

its appropriate channel by

simply viewing each channel.

In some cases you may need to install an inexpensive

video amplifier to your cable/antenna signal. Check the

diagram for where to place this unit in your cable wiring.

A video amplifier may be needed to balance the signal

strength if there is a discrepancy between the signal strength

of the MOD3000 and your cable/antenna signal.

This is our installation for a basic set-up. The informa-

tion on the following pages will help you configure more

sophisticated home networks. We also provide you with a

trouble shooting section for possible solutions to any prob-

lem you may have.

ULTRA prefix. If you are modulating on to an off-air anten-

na cable, use channel ranges with the prefix UHF. For

Europe, use the PAL-K or PAL-G band prefixes and channel

ranges.

Example: Your cable provider has channels 70 thru 78

as unused (by evidence that these channels don’t do

anything on your TV). You configure the four “Range”

DIP switches in the “0011” position for mapping to

cable channels 65 thru 135. Now you may modulate

three separate video source signals to unused channels

70, 73, and 76. (It is recommended that you leave at

least two channels free between modulated channels to

avoid frequency interference).

It is a good idea to make sure your video sources are

transmitting properly before connecting them to the

MOD3000. Connect them directly to a TV and check the

sound and picture for good signal. Next, connect base band

video and audio outputs of each piece of source equipment

to the A, B, and C video and audio inputs on the back panel

of the MOD3000.

Basic setup for the MOD3000 is

very simple. Just plug up to three

separate video sources into the

“VIDEO IN” sockets on the back

(plug in associated audio, if

available, also).

Then plug the output of the

MOD3000 and your existing

broadcast TV cable into a signal

splitter (not supplied). We

recommend adding an inexpensive

signal amplifier to your existing

cable input line, as shown on the

schematic. See installation

instructions for details.

Finally, plug the output of the

splitter into your TV set or into any

combination of signal amplifiers

and splitters you want to use to

distribute the signal to all the TV

sets in your house.

MOD3000 BASIC SETUP

Closeup View of

MOD3000 LED Display

MORE SOPHISTICATED SYSTEMS

Sophisticated home “networks” involving many televisions

are feasible with the MOD3000. In developing a network,

care must be taken to design an optimum signal distribution

system.

TV’s are designed for signals around 10dBmV. Signals sub-

stantially below 5dBmV result in weak, fuzzy, snowy

pictures. Signals above 15dBmV may overdrive older TV sets

which don’t have modern auto gain controls (which can han-

dle signals up to 40dBmV). An in-line attenuator (pad) can

also be used to reduce these signals, and to balance

radically different signal strengths at all your televisions. The

MOD3000 has an signal output level adjustment (red screw

marked ATT on the rear of the unit) which affords you the

ability to balance (increase or decrease) modulated signal

strength for optimum performance with your existing TV set(s).

Signal strength decreases with coax cable length,

connectors, splitters and combiners, so it is important to

determine cable length and what in-line devices you will be

using. Adjustment of input signal levels with video ampli-

fiers, either in-line or at the front end of your network, will

compensate for any line losses you may experience. The

following charts will help you calculate likely losses

through coax cable runs and splitters.

SIGNAL LOSS PER 100 FEET, BY COAX CABLE TYPE

Freq RG-11 RG-6 RG-59

400MHz 2.54dBmV 3.90dBmV 4.86dBmV

500MHz 2.87dBmV 4.93dBmV 5.46dBmV

600MHz 3.17dBmV 4.83dBmV 6.01dBmV

700MHz 3.45dBmV 5.25dBmV 6.51dBmV

800MHz 3.71dBmV 5.63dBmV 6.99dBmV

900MHz 3.96dBmV 6.00dBmV 7.44dBmV

SPLITTER SIGNAL LOSSES

Splitter Signal Loss

2-Way 3.5dBmV

4-Way 7.0dBmV

8-Way 10.5dBmV

In-line RF amplifiers are powered through the coax

cable and can be used to achieve modest signal strength

gains. AC powered RF amplifiers offer more amplification,

higher gain (17 to 25dB) and (usually) adjustable gain and

tilt controls. Your system should provide 10dBmV to every

TV (maximum is 15.5dBmV, per FCC regulations).

Reverse isolation is used to prevent the signal from your

MOD3000 from leaking out to the cable distribution system

(which the cable company doesn’t appreciate) or broadcast-

ing off your antenna (which your neighbors won’t appreciate

either). Reverse isolation is accomplished by placing an

amplifier between your antenna or cable company input and

the MOD3000 2-Way Video Splitter. This prevents the

MOD3000 signal from traveling back up the input line.

Band pass filters stop or filter out unwanted frequencies

while passing all others along. They are handy if a channel

you want to use for a MOD3000 source is already in use.

Taps and directional couplers are used to redirect a

portion of a signal from a “main” line while passing the

remaining signal through. For example, a 24dBmV tap

would attenuate 24dBmV from a 30dBmV signal and

siphon the remaining 6dBmV to a branch line. (Minor signal

losses would occur in both lines).

TROUBLESHOOTING YOUR

MOD3000 INSTALLATION

Try these “remedies” for the problems we have listed

below. If all else fails, call ELAN Home Systems Technical

Support for assistance at 1 (800) 622-ELAN (3526), Monday

thru Friday, 9:00AM to 6:00PM EST.

No Picture At All

Check cable connections. Check cable/antenna mode or

programmable feature on television set. Check MOD3000

Channel range/band DIP switches for proper setting.

Snowy Picture (Weak Signal)

Check cable connections. Increase signal level output of

MOD3000 by turning ATT control pot (red) clockwise. Add

signal amplifier in-line before splitter output.

Lines In TV Picture (Signal Too Strong)

Reduce signal level output of MOD3000 by turning ATT

control pot (red) counter clockwise. If using a signal amplifi-

er, remove it, decrease output, or move it “further up” the

cable line. Add attenuator in line.

Lines In Video Source Picture

Confirm modulated channel has no interference from broad-

cast signals (“clean snow” prior to channel assignment).

TV Picture Is “Ghosting” (FM or Multiple

Signals, Interference)

Make sure all video ports are terminated. Install video

amplifier between antenna input and 2 to 1 video combiner.

Video Source Picture Is Overly Bright

OR Overly Dark

On the bottom panel of the MOD3000, directly beneath the

video source inputs are Picture Quality Level adjustments

for each video source input channel (A, B, and C). Normally,

video source equipment output signals are factory set at one

volt peak to peak, and should not need to be adjusted for. In

some cases, an adjustment on the MOD3000 will need to

be made to compensate for weak or strong signal inputs

from source equipment. Identify which video source input

channel (A, B, or C) needs adjustment and go to that adjust-

ment screw (you will need a small Phillips screwdriver).

If the picture is overly bright and flooded with color, turn the

screw counter-clockwise slightly until the picture exhibits

normal color. It is recommended that before you begin

adjusting the picture levels of each video source, mark the

original position of the screws with a pencil mark on the

edge of the screw holes. If the picture is overly dark, the

adjustment screw should be “tweaked” clockwise.

Another cause of a “dark picture” occurs when you “split”

(using a Y-cord) the output signals of source equipment to

two modulators (or one modulator and a surround sound

processor). If this is the case, the MOD3000 has Video Input

Termination Selector Switches (DIP switches located to the

right of the red ATT pot on the rear of the MOD3000) that

overcome this problem. Locate the DIP switch for the “split”

video source (A, B, or C) and flip it in the up to the 1K

(Hi-Z) position. If you are splitting a video source to 2

Modulators, leave the corresponding channel on the other

Modulator in the 75 Ohm DIP switch position. This should

alleviate a dark picture.

ELAN HOME SYSTEMS

MOD3000 LIMITED WARRANTY

ELAN Home Systems will repair or replace any defect in material or work-

manship which occurs during normal use of this product (MOD3000) with

new or rebuilt parts, free of charge in the USA, for one year from the date

of original purchase by the end user. This warranty does not cover damages

in shipment, failures caused by other product not supplied by ELAN Home

Systems, or failures due to accident, misuse, abuse, lightning damage, tran-

sient voltage or alteration to equipment. This warranty is only extended to

the original purchaser, and a purchase receipt, invoice, or other proof of

original purchase date will be required before warranty repair is provided

by ELAN Home Systems.

Before you can receive warranty service, you must call ELAN Home

Systems Technical Support Department at 1 (800) 622-ELAN. At that time,

an ELAN Support Technician will deem your unit defective after an inquiry

about the operation of your MOD3000. A Return Authorization Number

will be issued and the unit, with proof of purchase, must be shipped to

ELAN Home Systems with the Return Authorization Number prominently

displayed on the outside of the shipping carton. Shipping costs to ELAN are

the responsibility of the end user. Return shipping costs to the end user will

be incurred By ELAN if the product is deemed within the warranty period.

This warranty gives you specific legal rights, and you may have other rights

(which vary from state to state). If a problem with this product develops

during or after the warranty period, please contact ELAN Home Systems,

your dealer, or any factory authorized service center.

ELAN Home Systems, LLC

2428 Palumbo Drive

Lexington, Kentucky 40509

Voice - 1(606) 269-7760

Fax- 1(606) 269 7972

www.elanhomesystems.com

SPECIFICATIONS

Output Frequency (Channel) Range 470 - 860 MHz

Output Level 10 - 30 dBmV (Adjustable)

Audio/Video Carrier Ratio 17dB

Video Frequency Response +/-1dB

Output Impedance 75 Ohms

VIDEO:

Video Input 1 Volt, Peak to Peak

Depth of Modulation 87.5%

Signal To Noise Ratio >55dB

Differential Gain <2%

Differential Phase <3%

Input Impedance 75 Ohm/1K (Hi-Z) Selectable

CHANNEL RANGES:

UHF (Antenna) (471.25 - 856.25 MHz) Channels 14 - 78

ULTRA (Cable) (469.25 - 859.25 Mhz) Channels 65 - 135

Split Channel Range Channels 14 - 39 and 91 - 135

AUDIO:

Input Level (For 22kHz Peak Deviation) 1 Volt, Peak to Peak

Intercarrier Offset Frequency 4.5 MHz +/-5KHz

Input Impedance High

Frequency Response +/- 1dB

GENERAL:

Power 90 - 120VAC 60 Hz, 8 Watts

Dimensions 9” X 6” X 2.8”

(230mm X 155mm X 70mm)

Weight 2.65 lbs /1.2kgs

TYPICAL HOME SIGNAL

DISTRIBUTION SYSTEM

*Audio output

from a stereo

system can also

be “piped” to the

networked TVs

the same way.

NOTE: For installation with an ELAN TD®or

HD®System, please consult the Installation

Manual for each system.

A/V loop-through connectors feed

selected audio and video signal

direct to stereo TV (the signal

appears on its “regular” channel)

while also delivering the signal with

monaural audio to the MOD3000 for

distribution to the other TVs on the

network. When using this configu-

ration, make sure the video imput

termination selector switch for that

channel is set to the 1K position.

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