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  3. AK8TMRRF945R

AK8TMRRF945RRF Stereo Transmitter

Sony Group Corporation
RF Stereo Transmitter - FCC ID AK8TMRRF945R - Sony Group Corporation
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Application Details

Equipment Class
DXX - Part 15 Low Power Communication Device Transmitter
Date of Grant
Apr 03, 2001
Application Purpose
Original Equipment
Date of Application
Mar 26, 2001
Equipment Note
RF Stereo Transmitter
Frequency Range
913.50000000 - 914.50000000
Company
Sony Group Corporation
Country
Japan

Documents & Files

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Users Manual

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Block Diagram

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External Photos

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ID Label/Location Info

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Internal Photos

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Operational Description

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Schematics

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

DC IN 9V OFF ON FILTERNOISE 123 CHANNEL RBAL AUDIO IN DC IN 9V OFF ON FILTERNOISE 123 CHANNEL RBAL AUDIO IN RECYCLING NICKEL-CADMIUM BATTERIES Nickel-Cadmium batteries are recyclable. You can help preserve our environment by returning your unwanted batteries to your nearest point for collection, recycling or proper disposal. Note: In some areas the disposal of nickel- cadmium batteries in household or business trash may be prohibited. RBRC (Rechargeable Battery Recycling Corporation) advises you about spent battery collection by the following phone number. Call toll free number: 1-800-822-8837 (United States and Canada only) Caution: Do not handle damaged or leaking nickel-cadmium batteries. To recharge the headphone battery after use Since little electric current is used for charging, there is no need to worry about overcharging. Charging and using hours * at 1 kHz, 1 mW + 1 mW output ** The hours required to fully charge empty battery N Operating the system Listening to a program 1First turn on the audio/video equipment and start playing. 2Remove the headphones from the transmitter. The transmitter’s power indicator will light in red. 3Select the radio frequency with the CHANNEL selector. 4When you put on the headphones the headphone power turns on automatically. 5-ATurn up the volume to a moderate level with the VOL control. Press the TUNING button briefly for automatic tuning of the headphones. If you do not receive a clear audio signal, press it again. A MDR-RF945RK 5-BTurn up the volume to a moderate level with the VOL control, then tune the headphones in to the frequency of the transmitter with the TUNING control until you can hear the audio signal loud and clear. B MDR-RF915RK Try the above steps 3 and 5 until the receiving performance becomes better. CTo connect to TV, etc. If noise occurs when the transmitter is connected to the headphone jack of your TV or VCR, set the NOISE FILTER switch to ON. Notes • If you connect the transmitter to LINE OUT or REC OUT jack, do not set the NOISE FILTER switch to ON. Otherwise, the volume will be limited. • The NOISE FILTER switch effects the sound only in cases such as connection diagram C. In diagrams A and B, the switch has no effect. • When the transmitter is placed on or near a TV, it may pick up a noise. In such case, place the transmitter away from the TV. 2Connect the transmitter to an AC outlet using the supplied AC power adaptor. Notes • Use only the supplied AC power adaptor. Do not use any other AC power adaptor. Polarity of the plug • When you connect the connecting cord directly to an earphone jack, the audio signal will not be output through the right channel. In such a case, use the separately sold PC-236HG plug adaptor. • If the connected equipment has the AVLS (Automatic Volume Limiter System) function, be sure to turn the function off when using the transmitter. Otherwise, you will have to turn up the volume of the headphones, and that may cause noise. • Do not place the transmitter near a fluorescent lamp, etc. when using the system. * WALKMAN is a registered trademark of Sony Corporation. Charging the headphone battery Using the headphones for the first time When you use the headphones for the first time, charge the battery in the following manner. 1Connect the transmitter to a power source. 2Place the headphones on the transmitter. Place the headphone on the transmitter such that the charging pins on the transmitter engage the charging contacts on the bottom of the right-hand housing. The charge indicator on the transmitter will light in green to indicate that the battery is being charged. Setting up the transmitter 1Connect the transmitter to audio/video equipment. Select one of the hookups below depending on the jack type: ATo connect to a headphones jack BTo connect to LINE OUT or REC OUT jacks DC IN 9V OFF ON FILTERNOISE 123 CHANNEL RBAL AUDIO IN Operating Instructions Manual de instrucciones Wireless Stereo Headphone System Sony Corporation © 2001 Printed in Korea MDR-RF945RK MDR-RF915RK 3-233-607-11(1) Sending RF signals from the Transmitter The transmitter starts sending the RF signals automatically, when it detects audio signals from the equipment connected. If it does not detect an audio signal for more than approximately four minutes, the transmitter will stop sending RF signals, and the power indicator turns off. When the transmitter receives an audio signal again, it starts sending the RF signals, and the power indicator will light in red again. If the audio signal is very weak, the transmitter does not send RF signals. If the transmitter is connected to a headphone jack, make sure the volume of the equipment connected is set to 5 – 6 or higher. You may not hear the beginning of the sound from the headphones until the transmitter starts sending the RF signals after detecting an audio signal. Note If the transmitter is connected to the headphones jack of the source equipment, set the volume of that equipment as high as possible without distorting the audio signal. Auto power on/off function When you remove the headphones from your head, the power turns off automatically. Do not allow the self adjusting band to be pulled up, otherwise the headphones will be switched on. The power turns on. Note If a hissing noise is heard move closer to the transmitter. After listening to a program Take the headphones off and rest them away on the transmitter, and recharge them. Note Do not hang the headphones by the self adjusting band, otherwise, the self adjusting band will be pulled up and the headphones will be switched on. The effective areas of the transmitter The optimum distance is up to approximately 150 feet (46 m) without the system picking up some interference. However, the distance may vary according to the surroundings and environment. If the system picks up some noise while using it within the above mentioned distance, reduce the distance between the transmitter unit and the headphones, or select the other cha…

Text truncated - open the document above for the full version.

External Photos

External Photos 1 Model: TMR-RF945R FCC ID: AK8TMRRF945R External Photos 2 Model: TMR-RF945R FCC ID: AK8TMRRF945R External Photos 3 Model: TMR-RF945R FCC ID: AK8TMRRF945R

ID Label/Location Info

ID Label Location Information Model: TMR-RF945R FCC ID: AK8TMRRF945R

Internal Photos

Internal Photos 1 Model: TMR-RF945R FCC ID: AK8TMRRF945R Internal Photos 2 Model: TMR-RF945R FCC ID: AK8TMRRF945R

Contact Information

Applicant

Kazuyuki Hori(Chief EMC/RF Compliance Specialist)
[email protected]81-50-3141-6220Fax: 81-50-3750-6540

Technical Contact

Sony CorporationMasako Seguchi
[email protected]+81-3-5769-5640

Sinagawa INTERCITY C Tower · Tokyo · Japan

Non-Technical Contact

Sony CorporationMasako Seguchi
[email protected]+81-3-5769-5640

Test Firm

Japan Quality Assurance Org.Tetsuo Kato
@.81-(03)-3416-0111Fax: 81-(03)-3416-9691

Technical Specifications

#Rule PartsFrequency RangePower OutputTolerance
115C913.5 MHz - 914.5 MHz-ppm

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