Full Text Searchable PDF User Manual
User manual MyM DVB-3T , rev B eng
Page 1
English
MyM 3T
User Manual
•
NICAM or A2 stereo
•
12-volt power supply
•
Low power consumption
•
Compact unit with 2 DVB-T tuners
•
MPEG-2 and MPEG-4 compliant
•
3 analogue modulators
•
Two CI for decryption or multidecryption
User manual MyM DVB-3T , rev B eng
Page 2
1
Contents
1
Contents
............................................................................................................................... 2
2 Unpacking Your MyM
.............................................................................................................. 2
3 Introduction
.......................................................................................................................... 3
4 Information about digital terrestrial television
....................................................................... 3
5
Installation Part one
............................................................................................................. 4
6
Connectors and buttons
......................................................................................................... 4
7
Installation Part two
............................................................................................................. 5
7.1
Connection to one TV
............................................................................................................................... 5
7.2 Connection to a Cable network
.............................................................................................................. 5
7.3 Automatic installation and channel search
.......................................................................................... 6
7.4 TV channel search
.................................................................................................................................... 6
8
Menu settings
....................................................................................................................... 7
8.1 Basic settings
............................................................................................................................................. 7
8.1.1.
Information
................................................................................................................................. 7
8.1.2 Choosing channels (Channel 1, 2,3)
......................................................................................... 7
8.1.3 Channel search
........................................................................................................................... 7
8.1.4 National
............................................................................................................................................. 8
8.1.5 National – Subtitling
.................................................................................................................. 8
8.1.6 National – Audio language
.............................................................................................................. 9
8.1.7 National – Menu language
............................................................................................................... 9
8.2
Advanced settings
...................................................................................................................................... 9
8.2.1 Aspect ratio (Picture format)
........................................................................................................ 9
8.2.2 Output channels
............................................................................................................................. 10
8.2.3 Quality
............................................................................................................................................. 10
8.2.5 Channel indicator
........................................................................................................................... 11
8.2.6 Output audio type
.......................................................................................................................... 11
8.2.6.1 TV System for audio
.............................................................................................................. 11
8.2.7 Loopthrough
.................................................................................................................................... 12
8.2.8 CI 1 and CI 2
.................................................................................................................................... 12
9
Multiple installation
............................................................................................................ 12
9.1 Installation of multiple MyM’s
.............................................................................................................. 12
9.2 Connecting a Set-Top-Box with the MyM
............................................................................................ 13
10
Support and trouble-shooting
.............................................................................................. 14
10.1 Trouble-shooting
................................................................................................................................... 14
11
Technical specification
....................................................................................................... 15
12
Declaration of Conformity
................................................................................................... 16
2 Unpacking Your MyM
When unpacking the carton following items should be included.
1. MyM
2. Power adaptor
3. User Manual
User manual MyM DVB-3T , rev B eng
Page 3
3 Introduction
Thank you for purchasing the MyM Micro Master, a quality product developed and
manufactured by A2B Electronics.
The MyM is a unique solution that allows you to watch digital television on all your
TV sets. The MyM receives all terrestrial digital programs, and re-transmits 3
programs simultaneously to all your TVs.
This User Manual describes how to install and connect your MyM quickly and easily .
In the unlikely event that you experience any difficulties please refer to Chapter
10, Support and Trouble Shooting.
4 Information about digital terrestrial television
Today there are digital terrestrial channels available, both free to air and
encrypted channels.
The terrestrial digital channels are transmitted in muxes. A mux (or multiplex) is a
package of channels that are transmitted on the same frequency. Each mux
normally contains between 4 and 7 channels. Frequently a mux will contain both
free to air and pay TV channels.
The MyM receives transmissions from 2 muxes, and re-transmits 3 of the digital
channels in analogue with Nicam or A2 stereo to all connected receivers (TV-sets,
VCR’s etc.) in the cable TV network. There is also a loop through of the digital
muxes, which makes it possible to connect a Set Top Box (STB) after the MyM.
User manual MyM DVB-3T , rev B eng
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5
Installation Part one
The MyM should be mounted correctly to ensure excellent performance over a long
period of time.
Please note that it is important to mount the MyM vertically for correct airflow.
Attach the MyM to a suitable surface using the holes on the back side. We
recommend that you use 2 screws (3.5mm x 20 mm). There is also a wall mount
plate that can be locked for protection of the CAM’s.
Install the MyM for easiest connection of the cables. If the MyM is installed in the
attic, mount it close to the aerial. Also, make sure you have a 230V AC power
outlet. For more information about how to install the MyM please refer to Chapter
7 Installation.
6
Connectors and buttons
Connectors and buttons
1.
Aerial in
2.
Antenna loop through
3.
TV out
4.
DC-power (12 V)
5.
RJ-45 for updates
1)
6.
LCD operation indicator
7.
Arrow up for menu navigation
8.
Arrow down for menu navigation
9.
OK button for showing menus and
for menu choice
1) See
www.a2b.se
for information about new software.
1
2
3
4
5
6
7
8
9
User manual MyM DVB-3T , rev B eng
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7
Installation Part two
7.1
Connection to one TV
If you only want to connect one TV, or one TV combined with a VCR / PVR, the
most straight-forward installation is to mount the MyM on the wall close to the TV.
1. Connect the aerial cable to the aerial
input on the MyM
2
Connect the one end of a RF cable to
the RF output on the MyM, and connect
the other end to the aerial in socket on
your TV.
3
Connect the power adaptor (only use
the adaptor delivered with the MyM).
4
The MyM will now start an automatic
channel search. When the channel
search is finished the LED on the MyM
will turn green and you will need to do
a channel search on your TV set. See
Chapter 7.3 Automatic installation and
channel search, for more information.
Note! Do not use any other the power adaptor than the original one with the MyM.
7.2 Connection to a Cable network
The MyM should be connected close to the aerial, before the signals are split to the
cable network.
If there is an amplifier connected to the
splitter you should first try to install
the MyM without the amplifier, because
the MyM has an embedded amplifier.
If there are very long cables in the
cable network, an amplifier can be
needed and should then be connected
after the MyM.
1
2
3
Splitter
MyM
TV
TV
TV
TV
User manual MyM DVB-3T , rev B eng
Page 6
7.3 Automatic installation and channel search
The MyM will automatically start a channel search when it is connected to a TV
aerial and the power adaptor is connected. The MyM will search for the strongest
transmissions, and after that it will start transmitting three channels according to
the table below:
Channel
Frequency
S11
231,25 MHz
S13
245,25 MHz
S15
259,25 MHz
The channel search takes about 60 seconds. When the channel search is complete,
and the MyM have found FTA channels, the LED on the MyM switches to green.
NOTE! In normal operation the LED flashes green.
7.4 TV channel search
Once the channel search on the MyM is complete you
will need to do a channel search on all TV’s and VCR’s
in the cable network. Many TV sets have an automatic
channel search facility - for more information please
refer to the TV and VCR User Manuals. Channels
coming from the MyM will be highlighted by a text box
with “MyM 1” in the upper right corner. This text box
will disappear automatically after 8 hours. You can
also remove the text box manually via the menu system of the MyM, see Chapter 8
Menu settings, for more information.
If you need help to install your MyM, please contact your local dealer/installer. You
can also visit our web site for more information:
www.a2b.se
LED
User manual MyM DVB-3T , rev B eng
Page 7
8
Menu settings
The MyM has a menu system for changing
settings and functionality. The menus are shown
on the TV screen. Press the OK button on the MyM
(see Chapter 6 Connectors and buttons) to display
the menus. The picture to the right shows the
main menu. Use the arrow up and arrow down
buttons on the MyM to navigate the menus. Exit
the menu by moving the indicator to “Return” and
then press the OK button on the MyM.
8.1 Basic settings
In the basic settings you can find information about your MyM, choose what
programs are transmitted by the MyM, and start a new channel search.
8.1.1. Information
The information box displays the hardware
version and the software version of your MyM.
It also displays the serial number of your
MyM.
8.1.2 Choosing channels (Channel 1, 2,3)
This menu is used for selecting which digital
television channels are transmitted by the MyM on
Channels 1, 2 and 3.
•
Move the indicator (using the arrow buttons
on the MyM) to the Channel you want to
change.
•
Press the OK button on the MyM to show all
the digital television channels.
•
Select the digital television channel and
press the OK button again.
8.1.3 Channel search
The first time the MyM is installed it will do an
automatic channel search to tune in all available
digital channels. This menu can be used for
starting a new channel search, for example if you
take the MyM to a new location.
User manual MyM DVB-3T , rev B eng
Page 8
Connect the TV aerial before starting the channel search. To follow the channel
search process tune a TV to channel S11 (231,25 MHz). During the channel search
all the signals that come from the aerial are shown at the bottom of the screen by
individual channels (frequencies) and signal strength. The digital muxes have green
indicators. Other signals have blue indicators. Please refer to Chapter 8.2 Advanced
Installation, for more information about signal quality and how to how to adjust
the TV aerial.
All the channels that are received and identified are displayed in the background.
8.1.4 National
This menu is used to change the country settings. You can
choose your preferences for subtitling, audio language,
channel search, menu language and presets.
8.1.5 National – Subtitling
Use this menu to set your preferences for subtitling. It is
possible to set the type of subtitling, choose the subtitle
language and select between DVB-T or teletext subtitling,
and set the teletext character set. This menu can also be
used to switch subtitling off (None).
8.1.5.1 Type
Use this menu to choose between normal subtitling or
special subtitling for the hearing impaired. This offers
enlarged subtitles and colour coded text. Alternatively all
the subtitling can be switched off. The MyM is preset to
“Normal”.
8.1.5.2 Language
In this menu you select what language that should be used
for subtitling.
NOTE!
There are more choices than you can see in the
window. Scroll up or down to see all choices.
User manual MyM DVB-3T , rev B eng
Page 9
8.1.5.3 Priority
Subtitling can be transmitted in different formats; via
“teletext subtitling or “DVB subtitling”. The format is
automatically selected by the MyM. Sometimes both
formats are transmitted and the MyM then automatically
chooses the format according to the priority set here.
8.1.6 National – Audio language
This menu is used to set your preference for audio
language, when a TV program is broadcast in more than 1
language.
8.1.7 National – Menu language
This menu is used to set your preference for the language
used in all the Menus in the MyM.
8.2
Advanced settings
In the advanced settings menu you will find settings for
picture format, output channels, signal quality, Auto MUX
search, Channel indicator, Output audio type and
Loopthrough.
8.2.1 Aspect ratio (Picture format)
The picture format can be set to 4:3 or 16:9 (Widescreen).
If the main TV is 4:3 choose 4:3 to watch 4:3 programs in
full screen and widescreen programmes (16:9) in the
letterbox format where the full width of the picture is
shown and the top and bottom of the picture are black.
Choose 16:9 if the main TV is widescreen to watch 16:9
programmes in full screen.
User manual MyM DVB-3T , rev B eng
Page 10
8.2.2 Output channels
Use this menu to choose the output frequencies for the
MyM. After automatic installation you will find the preset
channels on VHF output at channels S11, S13 and S15
respectively. This menu allows you to choose between
VHF (S10 to S41) or UHF (E21 to E69) as output channels.
8.2.3 Quality
This menu is used to test the signal quality and the aerial
reception quality. It may be necessary to adjust or
upgrade the TV aerial to ensure good picture and sound on
all channels. For more information see Chapter 8.2.3.1
Reception.
The MyM has an inbuilt spectrum analyser to help optimise
the aerial installation. For more information see Chapter
8.2.3.2 Antenna Quality.
8.2.3.1 Reception
Use this menu to measure the reception quality of each
channel. If these are not optimal it is possible that the
picture and sound quality will deteriorate in poor
reception conditions and it may be necessary to adjust the
aerial. The information refers to the 2 installed muxes for
the 3 channels.
The menu shows the channels numbers and frequencies of
the 2 installed muxes. Good reception quality requires a
strong incoming signal. For more information on the optimal signal strength see
Chapter 8.2.3.2 Antenna Signal. It may be necessary to adjust the aerial for
optimal signal strength. The signal quality C/N (Carrier to Noise) value is a
measurement of the relationship between the aerial signal and disturbance in the
channel. This should be higher than 20 dB. The BER (Bit Error Rate) measures the
number of ratio of the number of faulty bits received to the total number of bits
received. The BER should be as low as possible and less than 2.00E-4 (2*10
-4
) to
ensure good quality picture and sound.
User manual MyM DVB-3T , rev B eng
Page 11
If all the parameters for the incoming signal are good but there are still problems
with the picture or sound quality it is likely that there is a problem with the cable
that connects the TV / VCR to the MyM.
8.2.3.2 Antenna quality
The MyM has an inbuilt spectrum analyser. This
shows the level of the incoming signals on the VHF
and UHF band (47 to 862 MHz). The picture to the
right shows the signal level of the incoming
channels. The two chosen muxes for the installed
channels are green. The recommended level for the
incoming channels is between 35 dBµV and 75 dBµV
(between the 2 red horizontal lines).
Check that the green columns are between the 2 red horizontal lines. If not it may
be necessary to adjust or upgrade the TV aerial.
8.2.5 Channel indicator
The MyM Channel indicator can be switched between
on and off. When the channel indicator is on, a text
box with ”MyM 1” will be shown in the upper right
corner of the picture. After installation the channel
indicator is automatically switched on for 8 hours to
make it easier to do a channel search on the TV.
During normal operation, the channel indicator is off.
8.2.6 Output audio type
In this menu it’s possible to choose between different
Audio types like Nicam, A2 or A2*.
8.2.6.1 TV System for audio
Here you select which TV system
that will be selected for the sound.
Most common in Western Europe is
B/G.
User manual MyM DVB-3T , rev B eng
Page 12
8.2.7 Loopthrough
In this menu you can choose whether you want the
antenna signals to pass through the MyM. If you select
mode "On" then the FM, VHF and UHF band to be
imported and thus these signals will be available in the
antenna network after the MyM. Appropriate to put in
the "On" mode if the MyM is connected to a network with
digital TV boxes or TV sets with built-in digital receiver.
8.2.8 CI 1 and CI 2
The CI 1 and CI 2 menus gives you the possibility to get
information about CAM and Smartcard. CAM Interface 1
(CI 1) is used for decryption of services that is selected
for Output channel 1 and 2. CAM Interface 2 (CI 2) is used
for decryption of one service for Output channel 3.
9
Multiple installation
9.1 Installation of multiple MyM’s
You can link MyM’s to view more programs on all your TVs. The maximum number
of MyM’s you can cascade is 4. The limit is set by the S/N value that has to be
above a certain level to give a good picture quality.
To link 2 MyM’s:
•
Install the first MyM
•
Do a channel search on
the TV
•
Change output channels in the
MyM no 1.
•
Link the MyMs with a cable from
“Ant 2” connection on the first
MyM to “Ant 1” connection on the
second MyM. Connect the output
of the two MyM’s with a combiner
(see picture).
•
Power up and install the second MyM
•
Do another channel search on the TV and find the MyM channel one for each
MyM. Please remember that you can’t use neighboring output channels, not
even if they are on different MyM’s.
MyM #1
MyM #2
User manual MyM DVB-3T , rev B eng
Page 13
9.2 Connecting a Set-Top-Box with
the MyM
The MyM has a loop-through facility that
makes it possible to connect digital Set
Top Boxes (STB) after the MyM for
households in the Cable network that
want to watch other channels than those
supplied with the MyM.
TV
TV
MyM
STB
User manual MyM DVB-3T , rev B eng
Page 14
10
Support and trouble-shooting
If you need more help with installation, please contact your local dealer. You can
also find more information on our web site:
www.a2b.se
10.1 Trouble-shooting
Consider purchasing a
Set Top Box for Pay
TV programs
The MyM only
receives free-to-air
digital terrestrial
programs
No Pay-TV
reception
Consider purchasing a
TV with Nicam/A2
stereo sound
No stereo decoder
in your TV
Does your TV set
have stereo? Is stereo
selected?
No stereo sound
Install the Multibox
vertically according to
the instructions
Overheating due to
faulty installation
Is the MyM lying
down?
Flickering sound
and blockings in
the picture
Adjust or replace the
aerial for a better signal
Low signal level
from the aerial
Flickering sound
and blockings in
the picture
Adjust or replace the
aerial for a better signal
Low signal level
from the aerial
Is the picture OK?
Flickering sound
Go to ”Return” with the
arrow buttons, then
press the [OK] button
on the Multibox
Menu not switched
off
The TV picture
shows a menu
Do a channel search
on the TV
Channel search
not done on TV
Indicator LED green
No sound or
picture
Adjust or replace the
aerial for a better signal
No or poor signal
from the aerial
Indicator LED red
No sound or
picture
Action
Probable cause
Analysis
Error
Remove the aerial
signal amplifier
The input level to
the MyM or to the
TV is too high
Are you using an
aerial signal amplifier?
Flickering sound
and/or blockings
in the picture
User manual MyM DVB-3T , rev B eng
Page 15
11
Technical specification
2 x DVB-T TERRESTRIAL RECEIVER
Frequency range
47-862 MHz
Connector
Type F female, 75 ohm
Input level range
Nom. 35 – 75 dBµV
Bandwidth
7/8 MHz
Number of tuners 2
3 x MPEG DECODER – VIDEO - AUDIO
Video standard
MPEG2 MP@ML, MPEG4
H.264 AVC
Audio standard
AAC HE or MPEG1
Layer II AC-3 (option)
Aspect ratio
Letterbox, Anamorphic,
Teletext
Insertion in VBI
Subtitling
Teletext or DVB subtitling
3 x MODULATOR
Modulation standard
PAL B/G, I, D/K (DSB)
Audio
FM-mono, NICAM stereo
A2 or A2*
Output channels
160 to 862 MHz
Pre-selected:
S11, S13, S15
Output level
typ. 80 dBuV, fixed
Loop-through
47 - 862 MHz
Selectable On/Off
Built-in aerial amplifier 5 dB
RF output connector
Type F female, 75 ohm
DECRYPTION
Decryption interface
Common Interface
(PMCIA 5VDC)
Decryption type
Single or Multidecryption CAM’s supported
OTHERS
AC Power supply
230 VAC typ (94-264 VAC)
AC Power consumption Typ. 18 W
DC output power
12 VDC +/- 10%
DC power consumption Typ. 15 W
Size
301x215x53mm (excl. connectors)
Weight
approx. 900 g
Operating temperature -20 to +45
°
C
We reserve the right to technical changes without prior notice.
User manual MyM DVB-3T , rev B eng
Page 16
12
Declaration of Conformity
Declaration of Conformity
EC Directives
MyM 3T complies to the relevant parts of the directives and standards below.
Directives
•
Electro magnetic compatibility directive (EMC) 89/339/EEC
•
Low voltage directive (LVD) 73/23/EEC
•
CE-marking directive 93/98/EEC
Standards
EMC: Emission - EN61000-6-3:2001
Immunity - EN61000-6-1:2001
Safety : EN 60 950-1:2001
Further information on
www.a2b.se
655300-01 B