Sony BM-850D, BM-850T manual Specifications, Maintenance, Cleaning the heads, Cleaning the cabinet

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Specifications

Tape

y(normal position type)

Recording system

4-track 2-channel monaural

(L channel for electronic index signals, R channel for sound signals)

Tape speed

2.4 cm/s (15⁄16 in./s), 1.2 cm/s (15⁄32 in./s)

Fast winding time

Approx. 1 min. 50 sec. (2.4 cm/s) with Sony microcassette MC-60BM

Frequency response

200 – 4,000 Hz (at 1.2 cm/s)

200 – 6,000 Hz (at 2.4 cm/s)

Speaker

Approx. 5.7 cm (21⁄4 inches) dia.

Power output

350 mW (at 10% distortion)

Input

TELEPHONE PICKUP (minijack) Sensitivity 0.2 mV

Input impedance 10 kilohms

Output

EARPHONE (minijack)

for 8 – 300-ohm earphones

CONTROL UNIT connector

for hand control unit or foot control unit

Power requirements

9 V DC

DC IN 9 V jack accepts the supplied AC power adaptor for use on 120 V AC, 60 Hz

Power consumption

14 W (with the supplied AC power adaptor)

Dimensions

Approx. 200 x 70.5 x 245 mm (w/h/d) (77⁄8 x 27⁄8 x 93⁄4 inches)

including projecting parts and controls

Mass

Approx. 1.2 kg (2 lb 11 oz)

Accessories supplied

AC power adaptor (1)

Hand control unit (1, BM-850D only)

Cradle for the hand control unit (1, BM-850D only) Foot control unit (1, BM-850T only)

Earphone (1, BM-850T only)

Design and specifications are subject to change without notice.

Optional accessories

Hand control unit HU-80

Foot control unit FS-85

Earphone DE-45

Headphones MDR-U10M

Telephone recording adaptor TL-4

Telephone pickup TP-15

Message coupler TL-2

Cleaning kit KK-31

Your dealer may not handle some of the above listed optional accessories. Please ask the dealer for detailed information about the optional accessories.

Maintenance

Pinch roller

Erase head

Capstan

Record/playback head

Cleaning the heads

To produce optimum sound, clean the tape heads after every 10 hours of use.

First, disconnect the AC power adaptor. Press EJECT to open the cassette compartment lid. Moisten a cotton swab or a soft cloth with alcohol, and wipe the parts shown on the left.

Cleaning the cabinet

Clean the cabinet with a soft cloth slightly moistened with a mild detergent solution. Never use strong solvents, such as thinner or benzine, since they may damage the finish.

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Additional Information

BM-850D/T. 3-757-398-32. U. E

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Contents Microcassette Dictator/Transcriber Precautions Table of ContentsAbout This Manual FeaturesDifferences in supplied accessories As a dictator BM-850DOperation Flow Chart Dictation BM-850DTranscription BM-850T Setting Up the Unit Power ConnectionAttaching the cradle Cassette Insertion To reuse a cassetteDictation To stop the tapeDigital Counter While Dictating To record LTR letter and SEC secretary signalsBefore dictating, press Reset to reset the counters to zero Convenient FunctionsDictation To record the LTR signalTo record the SEC signal Recording timeTo B. Space When you have finished dictatingQuick reviewing playback/correcting the dictated material To DictTips on Transcription TranscriptionRewind Start/Stop Listen Foot control unit Auto Stop function To rewind the tapeTo rapidly advance the tape Controlling the speedOperations Auto backspace function TranscriptionReverse Time at 9 position Private listening To return the unit to the Electronic Index on modeSelecting the speaker Insert the cassette with the side to be erased up. See ErasingKeep Erase pressed and then press 0 REW Telephone Telephone RecordingDuring telephone recording Example of Transcription Example of Dictation and TranscriptionExample of Dictation Blinks for approx seconds and stops blinkingJSS/hh Blinks for about 3 seconds and then stops blinkingTroubleshooting Guide Alarm System Alarm system Situation To release alarm systemCleaning the heads SpecificationsMaintenance Cleaning the cabinetLeft side Location and Function of ControlsRear Display Window

BM-850T, BM-850D specifications

The Sony BM-850D and BM-850T are powerful audio mixing consoles that stand out in the realm of professional sound engineering. Geared towards both live sound and studio environments, these models are designed to deliver exceptional audio performance, making them indispensable tools for sound professionals.

The BM-850D model is exceptional for its digital technology. It incorporates advanced digital signal processing (DSP), which provides pristine audio quality and allows for extensive customization of sound parameters. With its user-friendly interface, operators can quickly adjust levels, EQ, and effects to suit any performance context. The console features multiple input channels, enabling simultaneous use of various audio sources, which is ideal for complex audio setups.

One of the standout features of the BM-850D is its robust connectivity options. It supports a range of input types, including microphone, line, and auxiliary inputs, along with flexible output routing. This versatility allows sound engineers to switch quickly between different audio sources without compromising on quality.

The BM-850T, on the other hand, emphasizes portability and ease of use while still providing high-quality audio performance. This model is particularly suited for mobile applications, such as event production and on-the-road performances. Its compact design does not sacrifice functionality; it includes many of the same advanced features as the BM-850D, allowing for seamless integration into various setups.

Both models are equipped with advanced metering systems that provide visual feedback on audio levels, ensuring that engineers can maintain optimal mix balance. Additionally, they include built-in effects processors that offer a range of reverb, delay, and modulation effects, adding an extra layer of creativity to live performances or recordings.

The control layout of both models is intuitive, featuring clear labeling and easy access to critical functions. This design reduces the learning curve for users, allowing them to focus on delivering exceptional sound quality.

In conclusion, the Sony BM-850D and BM-850T are distinguished by their advanced technology and features, catering to the needs of sound professionals. Whether in a studio or on the go, these mixing consoles provide the reliability, flexibility, and audio fidelity that are essential in today's audio production landscape. With their combination of digital precision and user-friendly design, these models are set to enhance any audio mixing situation.
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