a2b MyM 3T User manual

User manual MyM DVB-3T , rev D 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 D eng Page 2
1Contents
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)............................................................................10
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 ....................................................................................12
8.2.7 Loopthrough................................................................................................12
8.2.8 CI 1 and CI 2 ...............................................................................................12
9 Multiple installation and Factory reset ................................................................13
9.1 Installation of multiple MyM’s............................................................................13
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 D 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 TV’s.
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’s,
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.
Kommentar [ DS1] : need to
consider whether to have a
generic support site in English
with links to each country site
– or delete the reference to
the multibox.se

User manual MyM DVB-3T , rev D eng Page 4
5Installation 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. There is also
a wall mount plate that can be used together with a padlock for protection of the
CA modules.
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.
6Connectors 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 f or inf ormat ion about new sof t war e.
1
2
3
4
5
6 7
8
9
Kommentar [ DS2] : need to
consider whether to have a
generic support site in English
with links to each country site
– or delete the reference to
the multibox.se

User manual MyM DVB-3T , rev D eng Page 5
7Installation Part two
7.1 Connect ion t o one T V
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
2Connect 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.
3Connect the power adaptor (only use
the adaptor delivered with the MyM).
4The MyM will now start an automatic
channel search. When the channel
search is finished the LED on the MyM
will turn red or green ( depending on if
the selected services are encoded or
not). You now have to do a channel search on your TV to get the 3 channels
from the MyM. See Chapter 7.3 Automatic installation and channel search,
for more information.
Not e! Do not use any ot her t he power adapt or t han t he or iginal one wit h t he MyM.
7. 2 Connect ion t o a Cable net work
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 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 D eng Page 6
7. 3 Aut omat ic inst allat ion 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,
the LED on the MyM will turn to red or green depending on if found channels are
FTA or encrypted services.
NOT E! In normal operat ion t he LED f lashes 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”, “MyM 2”
and “MyM 3” 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 D eng Page 7
8Menu 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 set t ings
In the basic settings you can find information about your MyM, choose what
programs are transmitted by the MyM and/or 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.
NOTE! There could be more channels t han
you can see in t he window. Scroll up or
down t o see all channels
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

User manual MyM DVB-3T , rev D eng Page 8
starting a new channel search, for example if you take the MyM to a new location.
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,
and Menu language.
8. 1. 5 Nat ional – Subt it ling
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 or teletext subtitling,
select Auto Conversion 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 t han you can see in t he
window. Scroll up or down t o see all choices.
Kommentar [ DS3] : Is this
correct if the Auto Mux search
option is switched on?

User manual MyM DVB-3T , rev D eng Page 9
8. 1. 5. 3 Pr iorit y
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. 5. 4 Aut o conversion
If Aspect ratio is 16:9 and some of the subtitling is out of
the image area you can get all text within the image area
by select “On” for Auto conversion.
8. 1. 6 Nat ional – Audio language
This menu is used to set your preference for audio
language, when a TV program is broadcast in more than
one language.
8. 1. 7 Nat ional – Menu language
This menu is used to set your preference for the language
used in all menus in the MyM.
8.2 Advanced set t ings
In the advanced settings menu you will find settings for
Aspect ratio, Output channels, Quality, Channel indicator,
Output audio type, Loopthrough, CI1 and CI2.

User manual MyM DVB-3T , rev D eng Page 10
8. 2. 1 Aspect rat io (Pict ure f ormat )
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.
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 Qualit y
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.