Listen Technologies MSF0001 Assistive Listenting System for Hard of Hearing User Manual Microfield Manual 2
Listen Technologies Corporation Assistive Listenting System for Hard of Hearing Microfield Manual 2
Users Manual Revised
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| Document ID | 375405 |
| Application ID | o4fDvXdh4lLZaqaTT2G9dA== |
| Document Description | Users Manual Revised |
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| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 39.19kB (489838 bits) |
| Date Submitted | 2003-11-21 00:00:00 |
| Date Available | 2003-11-21 00:00:00 |
| Creation Date | 2003-11-05 14:36:25 |
| Producing Software | Acrobat Distiller 5.0.5 (Windows) |
| Document Lastmod | 2003-11-05 14:36:32 |
| Document Title | Microfield Manual_2 |
| Document Creator | Adobe PageMaker 7.0 |
| Document Author: | Administrator |
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 This page intentionally blank. Introduction Introduction 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 transmissions for personal use and in public facilities. 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 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 retransmit 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 external transmitter that transmits to an FM receiver. This manual frequently refers to “receive” and “transmit” channels. Please note that “receive” channels are frequencies received by MicroField from a portable, stationary or infrared transmitter in a room. A “transmit” channel is a channel MicroField uses to transmit to your MicroLink, MicroEar or other FM receiver. Wireless transmissions on 216 MHz, 72 MHz or Infrared MicroLink, MicroEar or other personal receiver MicroField Source: portable transmitter, stationary transmitter, infrared emitter (equipment in room) Receive Channel Transmit Channel Important Notes About Your MicroField Cont. 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 settings 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. MicroField Channels There are many places you can use your MicroField. These places include places of worship, schools, cinemas, live theatres, stadiums, 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. 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. General Functions 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. General Functions Operational Overview - Connections and Controls Use for controlling volume and selecting channels 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 Press and hold until display turns on (or off) An infrared receiving cable (supplied) connects here Connect a headset, neckloop, an optional speaker, or a cable to your 72MHz transmitter here 10 Display indicates channel, battery status, program mode, and preset lock 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 General Functions MicroField’s Display Indicates signal strength of received audio channel When illuminated, indicates unit is in search mode Indicates either the preset number, channel number, or relative volume setting 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 presets are locked and new ones cannot be stored When illuminated, indicates unit is in auto shut-off mode FULL MID LOW 11 General Functions 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. 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. 12 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 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 illuminates 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. 13 General Functions Returning to 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. 14 While holding the Preset button, turn the unit on to restore factory defaults. General Functions Charging the Batteries To charge your MicroField’s batteries, connect the power supply to MicroField and then plug it into a wall outlet. You will notice that the battery symbol flashes while it is charging. It will take 13 hours to fully charge the batteries. When the batteries are fully charged, the unit will stop charging. When not in use, it is best to leave your MicroField connected to the power supply to keep the batteries fully charged (the unit loses charge over time even when off). Leaving the unit connected to power will not damage the batteries. You may use your MicroField unit while it is connected to the power supply. The battery symbol flashes while charging. 15 General Functions Using the Power Supply Your MicroField unit may be operated with batteries or connected to the power supply. To use your unit with the power supply, simply connect the supply to the front of the MicroField unit and connect to AC power. Use ONLY the power supply provided with your MicroField unit. 16 General Functions Replacing the Batteries You should change the batteries in your MicroField if the unit does not give you a sufficient amount of time for your needs after being fully charged. MicroField uses four (4) AA NiMH rechargeable batteries. Only replace the batteries with the same type (NiMH) and a capacity of 1600mA or greater. Use good quality batteries. To replace the batteries: Turn the unit off. Turn the unit upside down. Use a Phillips screwdriver to remove the four screws on the bottom of the unit. Turn the unit right side up. Carefully remove the lid. Remove the old batteries. The batteries are accessed by removing four screws on the bottom of your MicroField (continued on next page) 17 General Functions Battery Replacement Continued Replace with new NiMH batteries, observing correct polarity. Carefully replace the lid. Make sure it is aligned correctly. Turn the unit upside down. Replace the four screws. Charge the batteries for 13 hours before first use. WARNING: do not use alkaline batteries in your MicroField. Charging alkaline batteries may result in physical harm, destruction of property and/or fire. Phonak is not responsible for any damage caused by improper battery use. You can expect a new set of NiMH batteries to last between 1 and 3 years before requiring replacement, depending on the usage. 18 Using MicroField for Rebroadcasting Setting Up The Transmit Channel 19 Using MicroField for Rebroadcasting - Setting the Transmit Channel Important Notes Your MicroField can receive audio signals and rebroadcast them directly to your MicroLink, MicroEar or other FM receiver. However, when you first get your MicroField, it is set up only to send audio signals to the headset jack. To use it with your MicroLink/MicroEar or with any other FM receiver, you will need to go through the setup process outlined in this section. Please refer to the following pages for more detailed information: Transmitting to a Phonak MicroLink or MicroEar - Page 22 Transmitting to another brand 216 MHz FM Receiver - Page 23 Setting up MicroField For Use With an External 72 MHz Transmitter and Receiver - Page 24 20 Using MicroField for Rebroadcasting - Setting the Transmit Channel Other Information Your MicroField’s transmission range is normally about 5 - 10 feet (1.5 - 3 meters). If a cable is plugged into the AUX connector, the transmission range is increased to 30 - 40 feet (9 - 12 meters). When using MicroField for rebroadcasting, set its volume control at about 15 to ensure the best audio levels. To change volume, use the controls on your hearing aid or receiver. If you use your MicroField near a computer, the computer may cause interference which will result in a noisy audio signal or no signal at all. Note that the channel sequence is different when setting up the transmit channel than it is with searching for receive channels. Your MicroField will cycle through the Phonak frequencies (see Appendix B), then through the remaining frequencies. 21 Using MicroField for Rebroadcasting - Setting the Transmit Channel Transmitting to a Phonak MicroLink or MicroEar Receiver IMPORTANT: Before starting this procedure, verify that your Phonak transmitter is turned OFF and MicroField is not near a computer or other device that generates RF energy. Your MicroField must be running on batteries rather than the power supply. Determine the channel of your MicroLink or MicroEar (for example, 9). Press PRESET and SEARCH at the same time on your MicroField. PGM will appear on the display, indicating the unit is ready to be programmed with a transmitting channel. The display will show the current transmit channel. If no channel is programmed, 00 will be displayed. Press UP until your MicroLink’s channel number appears in the display. Press PRESET. The channel will flash; the setting is stored for immediate use. You will hear a clicking sound during this process. 22 Using MicroField for Rebroadcasting - Setting the Transmit Channel Transmitting to other 216MHz FM Receivers If using a personal transmitter, turn it off; your MicroField must be running on batteries rather than the power supply. Find your product in the channel selection tables in Appendix B, and determine the MicroField channel number that corresponds with your product. For example, Phonic Ear #51 = MicroField Channel #29. Press the PRESET and SEARCH buttons at the same time on your MicroField. PGM will appear on the display, indicating it is ready to program a channel for transmitting. The display will show the current transmit channel. If no channel is programmed, 00 will be displayed. Press UP until the desired MicroField channel number appears in the display. Press PRESET; the channel will flash and the setting is stored for immediate use. MicroField will now transmit on that 216MHz channel (example: it now broadcasts on channel 29). 23 Using MicroField for Rebroadcasting - Setting the Transmit Channel Setting up MicroField For Use With an External 72MHz Transmitter and Receiver If you are currently using a 72 MHz transmitter to broadcast signals to your FM receiver, you can set up MicroField to work with your existing transmitter. Your external 72 MHz transmitter broadcasts on a specific frequency, which is then picked up by your FM receiver. In order for your transmitter to send the signal from MicroField to the FM receiver, you will need to connect it to your MicroField using an auxiliary cable from Phonak. You also must program MicroField so that it will work with your transmitter. Find your product in the channel selection tables starting on page A-2, and determine the MicroField channel number that corresponds with your product. For example, Listen channel 17 is MicroField channel 7P. Turn on your 72 MHz transmitter and make sure it is set to the correct channel. 24 (continued on next page) Using MicroField for Rebroadcasting - Setting the Transmit Channel Setting up MicroField For Use With an External 72MHz Transmitter and Receiver cont. Connect your transmitter to MicroField using the optional transmitter cable* from Phonak. Plug in the cable between the headphone jack of your MicroField and the AUX (or mic) input on your transmitter. Press the Search and Preset buttons together. The PGM symbol on the display will appear. If no transmitting channel is selected, 00 will appear in the channel indicator; if your MicroField was previously programmed, the transmitting channel number will be displayed. Press the DOWN button to select the channel number of your transmitter. Press PRESET. The channel will flash and the setting is stored for immediate use. *The optional cable should be purchased through Phonak. 25 Using MicroField For Rebroadcasting Setting up the Receive Channel 26 Important Notes MicroField will receive audio signals from a minimum of 5 feet (1.5 meters) from the transmitting antenna to a maximum of approximately 1000 feet (305 meters), depending on the type of transmitter used. When searching for audio signals, make sure your MicroField unit is not near a computer. Computers cause interference which may prevent your unit from finding a signal. When searching, MicroField will step through all available channels in the sequence shown in the “MicroField” column of Appendix B. Refer to the following pages for specific Receive Channel set-up information: Finding a Receive Channel Using Automatic Search - page 28 Finding a Receive Channel Using Manual Search - page 29 Storing, Using and Locking Presets - page 30 Using the Infrared Cable - page 33 27 Using MicroField for Rebroadcasting - Setting the Receive Channel Finding a Receive Channel Using Automatic Search When CH is illuminated, your MicroField is in Search mode. When SE is flashing, this indicates the unit is searching for a channel. 28 To find an audio signal automatically, press the SEARCH button momentarily. MicroField will search all available frequencies for valid audio signals. “SE” will flash in the display, indicating the unit is searching for a valid receive channel, and the CH indicator will illuminate. When it finds an audio signal*, it will stop on that channel and display the channel number. Press the SEARCH button again within 5 seconds if this is not the receive channel you want (if you wait longer than 5 seconds, the unit will start over when you press SEARCH). If no receive signals are present, the unit will continue to search - press UP or DOWN to stop. CH is displayed when your MicroField is in the search mode. If you are not successful in finding an audio signal, the facility may be using infrared. See page 33 for more information. *MicroField will not receive channels at or near its programmed transmit channel (see page 22). For example, if MicroField is programmed to transmit on channel 52, it will not be able to receive on channel 52 or nearby channels. See the Interference Chart in Appendix A for more information. Using MicroField for Rebroadcasting - Setting the Receive Channel Finding a Receive Channel Using Manual Search To find an audio signal* manually, press and HOLD the Search button until the CH symbol is shown on the display. Then, press the UP/DOWN keys repeatedly until you find the desired channel. Keep in mind that the first channel you find may not have the clearest signal; you should tune to the exact channel number of the desired audio signal by using the UP and DOWN buttons. (See Appendix B for MicroField channel numbers.) After you have selected your channel, do not press any buttons for 7 seconds; the UP/DOWN keys will revert to volume controls and the CH symbol will be extinguished. If you are not successful in finding an audio signal, the facility may be using infrared. See page 33 for more information. When CH is illuminated, your MicroField is in Search mode. The CH indication will go out after 7 seconds of non-use. Press and hold SEARCH to re-enter the manual search mode. Use the UP/DOWN keys to manually search for the clearest channel. *MicroField will not receive channels at or near its programmed transmit channel (see page 22). For example, if MicroField is programmed to transmit on channel 52, it will not be able to receive on channel 52 or nearby channels. See the Interference Chart in Appendix A for more information. 29 Using MicroField for Rebroadcasting - Setting the Receive Channel Storing a Preset Channel MicroField allows you to store frequently-used channels into presets (P1 through P7). This gives you the ability to quickly find the channel you use frequently. To store a preset: Find the receive channel you want to store using the automatic or manual search function. For example, if you want to store channel 18, use search until channel 18 is displayed. Press and hold the Preset button. The display will flash between P1 and the stored channel; the factory default channel is 00. Momentarily press the Preset button to select the preset number you want to program. As you step through the presets, the display will alternately flash with the preset number and the programmed channel. Press and HOLD the Preset button until the display flashes momentarily. This will program your desired channel (example: channel 18) into the currently selected preset number. To keep users from inadvertently selecting a preset*, program 00 into the preset location by manually searching for channel 00. 30 *When 00 is programmed into a preset location, that preset is not available. If the padlock symbol is displayed, the presets are locked and you cannot store new presets. You should consider locking the presets after storing them. See page 32 for more information. Using MicroField for Rebroadcasting - Setting the Receive Channel Selecting a Preset Channel For Use To select a preset, press and release the PRESET button repeatedly until the desired preset number appears in the display. There are a total of 7 preset locations available, P1 through P7. In addition to the 7 preset channels, the “last searched” channel is also displayed. For example: the first three presets are programmed and the last searched channel was channel 52. Repeated pressing of the preset button will result in the following selections: P1, P2, P3, 52, P1, P2, P3, 52. If no presets are available, you may program them. See “Storing Presets” on the previous page. Caution: if you hold the preset button down for more than two seconds, you will enter the preset programming mode. You may lock the presets after they have been stored to prevent this - see page 32. P1 P2 P3 52 Note: If channel 00 is stored in a preset location, that location will not be displayed when you step through the presets. 31 Using MicroField for Rebroadcasting - Setting the Receive Channel Locking Preset Channels Operating Your MicroField Locking presets will prevent accidental erasure or changing of stored receive channels in the presets. Press Preset and then the UP button to lock the presets. A padlock will appear in the display indicating the presets are locked. Press PRESET, then UP to lock preset channels Press PRESET, then DOWN to unlock preset channels Padlock symbol indicates the presets are locked and new presets cannot be stored To unlock the presets, press the Preset button and then the DOWN button. The padlock will disappear and you will be able to store new channels in the presets. When presets are locked, you cannot store any new presets. However, you can still find out what is in a preset location by pressing and holding the Preset button until the display flashes. This will cause MicroField to cycle between the preset number and the channel that is stored in the preset. Press Preset momentarily while the display is flashing to view what channels are stored in other presets. 32 Using MicroField for Rebroadcasting - Setting the Receive Channel Using the Infrared (IR) Receiving Cable Many cinemas, live theaters, courtrooms or similar places transmit audio signals to portable receivers via infrared emitters. To receive these signals, you will need to use the infrared receiving cable with your MicroField. Be sure to position the IR sensor so that Microfield can pick up the signal. If you are not certain where the IR emitter is located, try different positions until you get the strongest signal. Plug the cable into the jack marked IR. Attach the IR cable to your clothing, MicroField’s nylon case, or other location. Make sure the sensor is pointed toward the IR source (typically near the ceiling). Use MicroField’s search function to find the IR signal (see pages 28 and 29 for information on automatic and manual search functions). 33 MicroField as a Receiver 34 MicroField as a Receiver Important Notes MicroField will receive audio signals from a minimum of 5 feet (1.5 meters) from the transmitting antenna to a maximum of approximately 1000 feet (305 meters), depending on the type of transmitter used. When using your MicroField, make sure the unit is not near a computer. Computers cause interference which may disrupt your reception. Using the Headset Jack - page 36 Using the Optional Speaker - page 37 35 MicroField as a Receiver Using the Headset Jack Headset, Earphone, or Neckloop Use Connect your headset, earphone or neckloop to the headset jack when using MicroField as a receiver. MicroField can be connected to a headset, earphone or neckloop. Securely plug the device into the headset jack. Stereo or mono mini (3.5 mm) plugs can be used. Adjust the volume to a comfortable listening level using the UP / DOWN buttons. 36 MicroField as a Receiver Using the Optional Speaker Phonak offers an optional speaker for your MicroField unit which fits in the carrying case. This allows you to use your MicroField for personal soundfield applications. Plug the speaker cable into MicroField’s headset jack. Position the speaker in the case so the speaker grid is facing outside. After locating your receive audio signal (see pages 28-29), adjust volume to a comfortable level using the UP / DOWN buttons. 37 Operating Your MicroField MicroField as a Transmitter 38 MicroField as a Transmitter Using the Auxiliary Input With a Microphone To use the optional microphone, securely plug it into the AUX IN jack. You should only use a microphone supplied by Phonak for this purpose. When you plug a device into the AUX IN jack, two additional functions are triggered in MicroField: The transmission range of the internal transmitter is increased. The auto shut-off function (if enabled) is disabled. 39 MicroField as a Transmitter Using the Auxiliary Input With Your TV or Other Device Replacing the Batteries Cont. MicroField can be directly connected to your TV set, DVD, CD player, computer or other similar devices. This allows you to listen to this device through your FM receiver via MicroField. Connect the optional cable* to the AUX IN jack on your MicroField. Connect the other end to your TV or other device. When you plug a device into the AUX IN, two additional functions are triggered in MicroField: The transmission range of the internal transmitter is increased. The auto shut-off function (if enabled) is disabled. 40 *The optional cable should be purchased through Phonak. Troubleshooting 41 Troubleshooting When using MicroField for rebroadcasting, my MicroLink / MicroEar sounds distorted. Troubleshooting and FAQ Your MicroField’s volume is too high. Set your MicroField’s volume control at 15, then use the hearing aid to adjust volume. When I press the Preset button, the display reads 00 and I can’t find any presets. This is normal. The unit has been set to factory defaults. No channel or preset has been programmed. You can find a channel using the Search functions - see pages 28 - 29; or 1 page 30. you can program presets - see When I repeatedly press the Preset button, not all 7 presets are shown. This is normal. Only programmed presets (presets with channels other than 00) are shown. How do I find out what is stored in a preset channel? Press and hold the Preset button until it flashes. The display will alternately show the preset number and the channel stored in that preset. Repeatedly press the preset button to find your desired preset. 42 Troubleshooting When I try to store a preset, the display flashes, but I cannot store the preset. The presets are probably locked (look for the padlock symbol in the display). To unlock the presets, see page 32. The receive channel is shown in the Channel Selection Guide, but I cannot tune to this channel. MicroField will not receive channels at or near its programmed transmit channel (see Appendix A for details). For example, if your MicroField is programmed to transmit on channel 52, it will not be able to receive on channel 52 or nearby channels. These channels are purposefully locked out by MicroField when you program the transmit channel. Pressing Search causes the unit to search, but it never finds a channel. There are no FM channels available. Try plugging in the IR receiving cable; the facility may be using infrared transmission. If you still don’t find any channels, ask someone at the facility whether they have a transmission available. 43 Troubleshooting At a movie theater, we could not pick up the transmission. Make sure the IR cable is plugged in all the way. Point the sensor around the room until you get the signal. Sometimes the signal is behind you. Tip: before entering the theater, set your MicroField to channel 91. Most theaters use channel 91 or 92 for infrared transmissions. The audio signal is distorted. When searching for a channel, your MicroField may not stop at the clearest channel. Press the Search button again within 5 seconds to find a clearer receive channel. The channel indicator and signal strength dots go on and off. You are getting a weak signal from the transmitter. Try moving to a different location to receive a stronger signal. 44 Troubleshooting The batteries are not charging. Make sure you are using the correct power supply and that it is connected to a working power outlet. My batteries don’t last very long. It is time to replace the batteries. See page 17. My MicroField keeps turning off by itself. The auto shut-off function may be enabled (the I/O symbol will be illuminated); see page 13. Or the batteries may be dead; try charging the batteries. The unit is not turning off automatically. Make sure the auto shut-off feature is enabled (the I/O symbol will be illuminated when it is enabled). If the auxiliary cable is plugged into the AUX IN jack, the auto shut-off feature is disabled. 45 Troubleshooting I need more transmission range on my MicroField. To increase the transmission range, plug the auxiliary cable into the AUX IN jack. How is the AUX IN jack wired? Tip is the microphone input; Ring is a line input. The microphone that is connected to the AUX IN does not work or is distorted. You may be using the wrong type of microphone. Contact Phonak for assistance. I can’t get the audio from my TV to MicroField. This requires a special cable from Phonak. Can I charge my MicroField in my car? Yes. Use an adapter that provides a tip positive to the power jack. 46 Compliance Notice 47 Compliance Notices Phonak MicroField 216 MHz transmission: Compliance Notices The MicroField transmitter is authorized by rule under the Low Power Radio Service (47 C.F.R. Part 95) and must not cause harmful interference to TV reception or United States Navy SPASUR installations. You do not need an FCC license to operate this transmitter. This transmitter may only be used to provide: auditory assistance to persons with disabilities, persons who require language translation, or persons in educational settings; health care services to the ill; law enforcement tracking services under agreement with a law enforcement agency; or automated maritime telecommunications system (AMTS) network control communications. Two-way voice communications and all other types of uses not mentioned above are expressly prohibited. Caution: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate Phonak equipment. 48 Compliance Notices FCC Statement This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 49 Appendix 50 N12 N13 N16 N17 N18 N61 N62 N52 N64 N65 N68 N69 N55 N72 N73 N57 N76 N77 N79 N60 N80 200 175 75 50 25 75 100 125 200 225 250 275 312 375 350 475 275 250 150 125 100 75 25 50 125 150 175 200 237 300 275 400 375 350 250 225 200 175 50 25 25 50 75 100 137 200 175 300 500 475 375 350 325 300 175 150 125 50 25 12 75 50 175 150 162 275 250 312 375 350 450 462 425 525 500 400 375 350 325 200 175 150 75 50 25 12 50 25 150 125 137 250 225 287 350 325 425 437 400 563 538 437 412 388 362 237 212 188 112 87 63 38 13 13 113 87 100 212 187 250 312 287 388 400 363 575 550 450 425 400 375 250 225 200 125 100 75 50 13 100 75 87 200 175 237 300 275 375 387 350 600 575 475 450 425 400 275 250 225 150 125 100 75 38 75 50 62 175 150 212 375 250 350 362 325 675 650 550 525 500 475 350 325 300 225 200 175 150 113 50 75 12 100 75 137 200 175 275 287 250 700 675 575 550 525 500 375 350 325 250 225 200 175 138 75 100 713 688 587 562 538 512 387 362 338 262 237 213 188 150 87 112 12 12 62 37 100 162 137 238 250 213 775 750 650 625 600 575 450 425 400 325 300 275 250 213 150 175 50 800 775 675 650 625 600 475 450 425 350 325 300 275 238 175 200 75 100 88 12 75 50 150 162 125 813 788 687 662 638 612 487 462 438 362 337 313 288 250 187 212 87 112 100 13 13 62 37 138 150 113 875 850 750 725 700 675 550 525 500 425 400 375 350 313 250 275 150 175 163 50 75 13 75 87 50 900 875 775 750 725 700 575 550 525 450 425 400 375 338 275 300 175 200 188 75 100 38 50 62 25 950 925 825 800 775 750 625 600 575 500 475 450 425 388 325 350 225 250 238 125 150 88 25 50 12 963 938 837 812 788 762 637 612 588 512 487 463 438 400 337 362 237 262 250 137 163 100 38 63 12 12 975 950 850 825 800 775 650 625 600 525 500 475 450 412 350 375 250 375 387 500 475 537 600 575 675 687 650 400 375 275 250 225 200 75 50 25 25 50 75 112 175 150 275 250 262 375 350 412 475 450 550 562 525 425 400 300 275 250 225 100 75 50 25 50 87 150 125 250 450 462 575 550 612 675 650 750 762 725 300 275 175 150 125 100 25 100 125 150 175 212 275 250 375 350 362 475 450 512 575 550 650 662 625 N09 N08 N69 N55 N72 N73 N57 N76 N77 N79 N60 N80 N05 216.7125 216.725 216.7875 216.8125 216.825 216.8875 216.9125 216.9625 216.975 216.9875 N04 N01 N02 N04 N05 N08 N09 N12 N13 N16 N17 N18 N61 N62 N52 N64 N65 N68 N01 Receiver f(MHz) 216.0125 216.0375 216.0875 216.1125 216.1875 216.2125 216.2875 216.3125 216.3875 216.4125 216.4375 216.5125 216.5375 216.575 216.5875 216.6125 216.6875 N02 Transmitter Appendix A: Interference Chart (Standard Phonak Frequencies 216 MHz) Frequencies used in other rooms 75 100 125 150 275 300 325 400 425 450 475 512 575 550 675 650 662 775 750 812 875 850 950 962 925 25 50 75 100 125 250 275 300 375 400 425 450 487 550 525 650 625 637 750 725 787 850 825 925 937 900 75 50 25 50 75 200 225 250 325 350 375 400 437 500 475 600 575 587 700 675 737 800 775 875 887 850 100 75 25 50 175 200 225 300 325 350 375 412 475 450 575 550 562 675 650 712 775 750 850 862 825 175 150 50 25 100 125 150 225 250 275 300 337 400 375 500 475 487 600 575 637 700 675 775 787 750 275 287 400 375 437 500 475 575 587 550 225 237 350 325 387 450 425 525 537 500 Interference certain Interference likely, keep max. distance Reduced range, keep distance as large as possible 12 75 50 112 175 150 250 262 225 75 63 37 100 75 175 187 150 Potential interference in neighboring rooms Potential interference in the same room No interference 275 263 150 175 113 50 75 13 Appendix B: Channel Selection Guide To use this guide, find the channel number of your product and note the corresponding channel number in MicroField. You will use the MicroField channel number (first column) for programming or using your unit. 216 MHz Channels II MicroField Channel Frequency (MHz) Phonak Listen 216.0125 N01 1A 41 216.0250 216.0375 21 216.0625 1B 42 216.0750 2B 216.0875 N04 3B 216.1125 N05 1C 43 216.1250 2C 22 216.1375 3C 23 216.1625 1D 44 216.1750 2D 216.1875 N08 3D 216.2125 N09 1E 2A N02 Phonic Comtek Ear Telex AVR Williams C01 Light Speed Drake Gentner N01 41 42 3A C05 43 44 C09 N09 (continued on next page) Appendix B: Channel Selection Guide MicroField Channel Frequency (MHz) 45 216.2250 2E 24 216.2375 3E 25 216.2625 1F 46 216.2750 2F 12 216.2875 N12 3F 13 216.3125 N13 1G 47 216.3250 2G 26 216.3375 3G 27 216.3625 1H 48 216.3750 2H 16 216.3875 N16 3H 17 216.4125 N17 1J 49 216.4250 18 216.4375 N18 3J C18 61 216.5125 N61 1K C21 29 216.5250 62 216.5375 Phonak Listen 2J 2K N62 Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner 45 46 C12 N12 47 48 C16 49 51 N18 10 3K III Appendix B: Channel Selection Guide MicroField Channel Frequency (MHz) Phonak 28 Channel 216.56Selection 25 IV Listen Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner Guide1L - 216 MHz cont. 52 216.5750 N52 2L 52 64 216.5875 N64 3L C24 65 216.6125 N65 1M C25 53 216.6250 2M 81 216.6375 3M 82 216.6625 1N 54 216.6750 2N 68 216.6875 N68 3N 69 216.7125 N69 1P 55 216.7250 N55 2P 83 216.7375 3P 84 216.7625 1R 56 216.7750 2R 72 216.7875 N72 3R C32 73 216.8125 N73 1S C33 57 216.8250 N57 2S 11 N64 53 12 54 13 14 C29 55 56 57 15 N72 16 Appendix B: Channel Selection Guide MicroField Channel Frequency (MHz) Phonak Listen 76 216.8375 N76 3S 85 216.8625 1T 58 216.8750 2T 86 216.8875 3T 77 216.9125 59 216.9250 2U 88 216.9375 3U 79 216.9625 N79 1V 60 216.9750 N60 2V 80 216.9875 N80 3V 00 NONE N77 Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner Channel Selection Guide - 216 MHz cont. 58 1U 17 C37 N77 59 18 C39 60 19 C40 N80 Appendix B: Channel Selection Guide 72 MHz Channels VI MicroField Channel Frequency (MHz) 1A 72.0250 11 2A 72.0750 12 72.1000 3A 72.1250 14 4A 72.1750 15 72.2000 5K 72.2250 16 6K 72.2750 17 72.3000 7B 72.3250 19 8B 72.3750 20 72.4000 9N 72.4250 21 0N 72.4750 10 10 10 10 22 72.5000 1C 72.5250 11 11 11 11 24 2C 72.5750 12 12 12 12 25 Phonak Listen Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner 72.1 72.2 72.3 72.4 72.5 10 Appendix B: Channel Selection Guide MicroField Channel Frequency (MHz) 72.6000 2O 72.6250 13 13 13 13 26 4O 72.6750 14 14 14 14 27 72.7000 5D 72.7250 15 15 15 15 29 6D 72.7750 16 16 16 72.8000 7P 72.8250 17 17 17 17 31 8P 72.8750 18 18 18 18 32 72.9000 9E 72.9250 19 19 19 19 34 0E 72.9750 20 20 20 20 35 3E 74.6250 33 33 33 33 36 4E 74.6750 34 34 34 34 37 74.7000 5I 74.7250 35 35 35 35 39 6I 74.7750 36 36 36 36 40 Phonak Listen Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner 72.6 12 72.7 14 72.8 16 72.9 18 30 21 VII Appendix B: Channel Selection Guide VIII MicroField Channel Frequency (MHz) 7I 75.2250 37 37 37 37 41 8I 75.2750 38 38 38 38 42 75.3000 9J 75.3250 39 39 39 39 44 0J 75.3750 40 40 40 40 45 75.4000 1R 75.4250 21 21 21 46 2R 75.4750 22 22 22 47 75.5000 3F 75.5250 23 23 23 49 4F 75.5750 24 24 24 50 75.6000 5S 75.6250 25 25 25 51 6S 75.6750 26 26 26 52 75.7000 7G 75.7250 27 27 27 54 8G 75.7750 28 28 28 55 Phonak Listen Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner 24 26 75.5 28 75.6 30 75.7 32 Appendix B: Channel Selection Guide MicroField Channel Frequency (MHz) 75.8000 9T 75.8250 29 29 29 56 0T 75.8750 30 30 30 57 75.9000 1H 75.9250 31 31 31 57 2H 75.9750 32 32 32 60 00 NONE Phonak Listen Phonic Comtek Ear Telex AVR Williams Light Speed Drake Gentner 75.8 34 75.9 36 IX Channel Selection Guide - Infrared (IR) MicroField Channel Frequency (MHz) 91 95kHz IR 92 250kHz IR 93 2.06MHz IR 94 2.3MHz IR 95 2.56MHz IR 96 2.8MHz IR 97 3.3MHz IR 98 3.8MHz IR XI FM Division Contact Information Telephone: 1.888.777.7316 Website: www.Phonak-US.com Address: 4520 Weaver Parkway Warrenville, IL 60555-3927 Version 031020. Copyright© 2003 Phonak Hearing Systems. All Rights Reserved.
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