Phonak MSF0001 MicroField User manual

MicroField
User Manual

Contents
Introduction ........................................................................................................................................ 1
MicroField Key Features............................................................................................................... 3
Important Notes About Your MicroField.................................................................................... 4
MicroField Channels............................................................................................................... 6
Instructions For First-Time Users.......................................................................................... 7
General Functions......................................................................................................................... 8
Turning the Unit On and Off................................................................................................. 9
Operational Overview - Connections and Controls........................................................... 10
MicroField’s Display ............................................................................................................. 11
Adjusting Volume.................................................................................................................12
Enabling the Automatic Shut-Off Function......................................................................13
Returning to Factory Defaults ............................................................................................14
Charging the Batteries.........................................................................................................15
Using the Power Supply.......................................................................................................16
Replacing the Batteries........................................................................................................17

Applications:
1. Using MicroField for Rebroadcasting..................................................................................19
Setting Up The Transmit Channel.......................................................................................19
Important Notes ...............................................................................................................20
Transmitting to a Phonak MicroLink or MicroEar Receiver..........................................22
Transmitting to other 216MHz FM Receivers................................................................23
Setting up MicroField For Use With an External 72MHz Transmitter and Receiver..24
Setting up the Receive Channel..........................................................................................26
Important Notes ...............................................................................................................27
Finding a Receive Channel Using Automatic Search.....................................................28
Finding a Receive Channel Using Manual Search..........................................................29
Storing a Preset Channel .................................................................................................30
Selecting a Preset Channel For Use ................................................................................ 31
Locking Preset Channels ..................................................................................................32
Using the Infrared (IR) Receiving Cable .........................................................................33
2. MicroField as a Receiver ......................................................................................................34
Important Notes.................................................................................................................35
Using the Headset Jack .....................................................................................................36
Using the Optional Speaker ..............................................................................................37

3. MicroField as a Transmitter .................................................................................................38
Using the Auxiliary Input With a Microphone..................................................................39
Using the Auxiliary Input With Your TV or Other Device.................................................40
Troubleshooting ................................................................................................................................ 41
Compliance Notice............................................................................................................................47
Appendix ...........................................................................................................................................50

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1
Introduction

2
Welcome to the Phonak World of Wireless Communication!
Thank you for choosing MicroField! MicroField is a high-quality product from Phonak, a world
leader in hearing technology innovation and reliability. MicroField automatically finds audio
transmissions (such as from a teacher’s wireless transmitter, a theater sound system, or other
facilities providing wireless assistive listening) on any of three frequency bands. Once MicroField
finds the transmission, it sends the audio signal to you in one of several ways:
Directly to your hearing aid (when equipped with a Phonak MicroLink or other type
216MHz receiver)
To your personal transmitter and FM receiver
To an earphone or neckloop
To an optional speaker
MicroField has been designed to give you the easiest possible way to receive wireless audio trans-
missions for personal use and in public facilities.
Introduction

3
MicroField Key Features
Receives audio on three frequency bands
72-76MHz
216-217MHz
Multiple Infrared (IR) Channels
Can be used at literally thousands of facilities!
Classrooms, theaters, cinema, places of worship, courtrooms, etc.
Automatic and manual search modes
Quickly recognizes/locates an FM / IR signal in a facility
Seven presets for regularly used transmission channels
Ideal for classroom use, places of worship or your favorite theater
Automatically remembers the last volume setting for each preset plus the last searched
channel
50+ hours of battery life between charges
Easy-to-use LCD display shows battery condition, channel number, preset number, volume
setting and signal strength
Digital design for stable, crystal clear reception
Can be used indoors or outdoors

4
Important Notes About Your MicroField
MicroField is a highly versatile product. It can receive various types of audio signals and
uses a variety of methods to convert the signals to a form you can use. The unit can re-
transmit the signals directly to an FM or external receiver; it can send audio to a headset or
an optional loudspeaker; or it can send audio signals via auxiliary connections to an exter-
nal transmitter that transmits to an FM receiver.
This manual frequently refers to “receive” and “transmit” channels. Please note that “re-
ceive” channels are frequencies received by MicroField from a portable, stationary or infra-
red transmitter in a room. A “transmit” channel is a channel MicroField uses to transmit to
your MicroLink, MicroEar or other FM receiver.
Receive Channel Transmit Channel
Wireless transmissions
on 216 MHz, 72 MHz
or Infrared
MicroLink, MicroEar or
other personal receiver
Source: portable transmitter,
stationary transmitter, infrared
emitter (equipment in room)
MicroField

5
When shipped, your MicroField is set to send audio to the headset jack. If you are planning
to use it with a MicroEar, MicroLink or other FM receiver, it must be set up for the way you
will be using it. See page 20 for more information.
Make certain that the batteries are charged overnight before using MicroField. See page 15.
After extensive use of your MicroField, you might want to restore the factory default set-
tings to give you a fresh start on programming the unit. See page 14.
If you are planning to use MicroField in a theater or other location using infrared assistive
listening, the supplied IR receiving cable must be connected to the unit. See page 33.
Important Notes About Your MicroField Cont.

6
There are many places you can use your MicroField. These places
include places of worship, schools, cinemas, live theatres, stadi-
ums, courtrooms and government meeting rooms. Many public
facilities provide transmitters that use specific channels to send
the audio from their sound systems to personal receivers or
portable listening devices. Your MicroField is designed to search
out these audio channels and then send them directly to your FM
receiver.
Your MicroField can pick up signals in three frequency bands:
72-76 MHz, 216-217 MHz, and infrared. For all of the possible
receiving channels, see the channel selection guide (Appendix B).
MicroField can also receive infrared signals. Infrared is available
in many cinemas, live theatres and courtrooms. See page 33 for
more information.
MicroField Channels
Important Notes About Your MicroField Cont.

7
Instructions For First-Time Users
Unpack your new Phonak MicroField and make sure all components were included in the
shipment:
1. MicroField module (with 4 AA NiMH
rechargable batteries pre-installed)
2. Nylon case
3. Infrared receiving cable
4. Power supply for re-charging and/or powering
the unit
5. Headset (not shown)
If any components are missing, contact Phonak immediately. If any items were damaged in
shipping, retain the packing materials for inspection and contact the shipper. Phonak is not
responsible for damage incurred in shipment.
1
2
43

8
General Functions

9
General Functions
Turning the Unit On and Off
To turn on your MicroField, press and hold the ON button until you see the Phonak logo on the
display, and then release.
To turn the unit off, press and hold the OFF button until the display turns off.
If the I/O symbol is illuminated, your MicroField’s
auto-shutoff feature has been activated. See
page 13 for more information.

10
General Functions
Operational Overview - Connections and Controls
Connect a headset,
neckloop, an optional
speaker, or a cable to your
72MHz transmitter here
Use for controlling volume and
selecting channels
Display indicates
channel, battery
status, program mode,
and preset lock
Use to select and
store presets or to
program the unit
Connect the provided
power supply here to
charge the batteries or
operate the unit
Use to automatically or
manually search for a
channel
Auxiliary devices connect here, such
as an environmental microphone or
a cable to your TV set
An infrared
receiving cable
(supplied)
connects here
Press and hold until
display turns on (or off)

11
MicroField’s Display
Indicates signal strength of
received audio channel
When illuminated, indicates
unit is in search mode
The battery symbol
indicates approximate
battery life remaining;
when flashing, shutdown
is imminent
When illuminated, indicates
unit is in transmit channel
programming mode
When illuminated,
indicates unit is in
auto shut-off mode
When illuminated,
indicates presets are
locked and new ones
cannot be stored
Indicates either the preset
number, channel number, or
relative volume setting
FULL MID LOW
General Functions

12
If CH appears in your MicroField’s display, your unit is
in the search mode. Wait about 7 seconds until CH
goes away, then you can adjust volume.
Adjusting Volume
To increase or decrease the volume, press the UP or DOWN keys.
MicroField’s display will show a number between 0
and 25 indicating the relative volume level. The unit
will also remember volume settings for each preset.
Once you adjust volume to the desired level, the
volume level will automatically return the next time
you select that preset.
When using the manual search function, the UP and
DOWN keys momentarily become channel selection
keys. To change back to volume controls, wait 7
seconds - the CH indicator will go out and you can
again adjust volume.
General Functions

13
Enabling the Automatic Shut-Off Function
Your MicroField can be set up so that after 30 minutes of no receive signal, it will turn itself off.
To activate this feature, quickly* press and hold the On/Off button and then the UP button. The
I/O symbol will be displayed.
To turn off the automatic shut-off function, quickly* press and hold the On/Off button and then
press the DOWN button. The I/O symbol will be extinguished.
Note: Any time you plug a device into the AUX IN jack, the auto shut-off function is disabled.
The I/O symbol illumi-
nates when the auto
shut-off feature is
activated.
*If you hold the On/Off button down too long, the unit will shut off. Turn it back on and try again.
General Functions

14
Returning to Factory Defaults
While holding the Preset button, turn the
unit on to restore factory defaults.
This feature restores the factory defaults to your MicroField. This is recommended if someone new
is going to use the unit or if you simply want to start over. When you restore the factory default
settings, the following occurs:
All of the presets are programmed to channel 00 (they are
all cleared).
The transmitting channel is set to channel 00.
The auto shut-off function is turned off.
The preset lock function is turned off.
To restore factory defaults:
Turn the unit off.
Press and hold the Preset button.
While holding the Preset button, press and hold the
On/Off button until you see the Phonak logo.
Release the On/Off button and the Preset button.
00 will be displayed.
General Functions