Marantz PMD520 manual Introduction, Precautions, Features

English

INTRODUCTION

Thank you for selecting the Marantz Model PMD520 3-head In- dependent Dual Well Cassette Deck.

Please read these operating instructions carefully. We recom- mend that you read the entire user guide before you connect or operate the unit.

After you have reviewed the contents this manual, we suggest that you make all system connections before you attempt to operate the unit.

Refer to the Figures on Pages 54 – 57 of this user guide.

The callout numbers on the Figures correspond to those found in the text. All references to connections and controls are printed in BOLD type, as they appear on the unit.

PRECAUTIONS

The following precautions should be considered when operat- ing the equipment.

When setting the equipment ensure that :

–air is allowed to circulate freely around the equipment

–the equipment is on a vibration free surface

–the equipment will not be exposed to interference from an external source

–the equipment will not be exposed to excessive heat, cold, moisture or dust

–the equipment will not be exposed to direct sunlight

–the equipment will not be exposed to electrostatic discharges

¡In addition, never place heavy objects on the equipment.

¡If a foreign body or water does enter the equipment, contact your nearest dealer or service center.

¡Do not pull out the plug by pulling on the mains lead. Hold the plug.

FEATURES

¡COMPLETELY INDIVIDUAL DUAL SYSTEM

Well A and Well B can be controlled independently for both recording and playback. There are two sets of inputs and outputs which allow for many modes of recording and play- back. Two separate input sources can be recorded simulta- neously and independently on the two decks; two different tapes can be played back simultaneously on the two decks; and lastly, it is possible to play a cassette on one well, and record a different source (such as a mixer) on the other well simultaneously.

There are also several modes in which the two decks work together.

¡CONTINUOUS RECORDING AND PLAYBACK

In the continuous mode, Well A will play (or record) side one, and then automatically switch to Well B, which will play (or record) side one. In this way 1-1/2 hours of uninterrupted playback or recording is possible using C-90 cassettes.

¡CASCADE CONNECTION FOR SERIAL CONNECTION OF MULTIPLE UNITS

By connecting several PMD520s in series by way of the cas- cade connection, multiple units can play or record continu- ously for logging and other long-time recording applications. In this case, Wells A and B of unit #1 will play (or record) as in the example above, then they will trigger the start of con- tinuous playback (or record) of unit #2, and so on.

¡OVERLAP SERIES RECORDING

This feature records long events such as a conference, with- out interruption. The recording of the next tape starts when the remaining time on the previous tape is approximately 3 minutes.

¡PARALLEL RECORDING (DUPLICATION)

When multiple copies of the same source are required, it is possible to record both Well A and Well B simultaneously, in parallel, from a single source.

¡TIMER REC/PLAY

Time-activated playback and recording are available using a commercially available timer.

¡FINE SPEED CONTROL

Each Well features ± 3% speed control.

¡METERS AND LINEAR TIME TAPE COUNTERS

Each Well features independent FL bargraph meters, and a linear time (minutes and seconds) counter. The display on these counters is only an approximate indication of minutes and seconds and its accuracy depends on the match be- tween the Tape and the correct TAPE TIME setting.

¡TAPE STOP ALARM

A buzzer sound is generated to indicate the end of tape af- ter playback or recording.

¡DOLBY B/C NR SYSTEMS

The Dolby NR (Noise Reduction) systems compress and am- plify signals during recording in order to raise the signal-to- noise ratio on the tape. During playback, these signals are expanded and attenuated by the same amount in order to regain the original dynamic range of the music. An additional result of this expansion and attenuation is that the noise floor of the recording is reduced significantly. Dolby B typically reduces noise by 10 dB, while Dolby C typically reduces noise by 20 dB.

¡DOLBY HX PRO HEADROOM EXTENSION

The Dolby HX PRO system monitors the total amount of ef- fective bias during recording and instantaneously compen- sates for any excess bias by reducing the deck’s bias signal level accordingly.

The system operates independently on each channel. HX PRO is unlike a noise reduction system because it functions only during recording and no decoding is required. There- fore, a tape recorded with the HX PRO system can be played back on any other cassette deck while retaining the benefits of HX PRO.

Dolby noise reduction and HX Pro headroom extension are manufactured under license from Dolby Laboratories Licens- ing Corporation. HX Pro originated by Bang & Olufsen.

“DOLBY” the double-D symbol and “HX PRO” are trademarks of Dolby Laboratories Licensing Corporation.

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