Marantz SD4050 manual Syncro Reverse Dubbing, Tape Counter, Dolby B and C Noise Reduction System

SYNCRO REVERSE DUBBING

w t w

	DOUBLE CASSETTE DECK SD4050
	COUNTER		COUNTER
	RESET		RESET
DOLBY NR
C
B
OFF
	DUBBING SPEED	REC LEVEL
TIMER	SYNC REV NORMAL HIGH		RECORD PAUSE REC MUTE

REC

OFF

PLAY

REV. MODE	AUTO REVERSE	STOP	PLAY		STOP	PLAY
	AUTO TAPE SELECT/HIGH SPEED DUBBING
CCONT. PLAY
		EJECT	MIN	MAX	PHONES
						EJECT
	POWER ON/OFF	PLAY A		PITCH
				CONTROL –	+
e	q	i	r			yu

AUTO REVERSE

AUTO TAPE SELECT/HIGH SPEED DUBBING

BREC/PLAY

FRANÇAIS ENGLISH

During dubbing of the side facing you, the deck that first reaches the end if the tape will standby until the other deck reaches the end of the tape, direction together.

(Depending on the manufacturer, the length of tapes having the same recording time may differ somewhat. Setting this mode permits the arrangement of the begining portion of the opposite side of the tape.)

1.Press the POWER switch q to the ON ( ) position.

2.Load the cassette tape to be played on deck A and the one to be recorded in deck B w.

3.Select the position of the REV MODE switch e.

4.Press the SYNC REV button i to set the SYNC REV Mode. The SYNC REV Indicator will light up.

To release SYNC REV mode, the SYNC REV button is pushed again.

When direction of Deck A and Deck B is only Forward ( ), the SYNC REV mode can be set.

5.To being normal speed dubbing, press the DUBBING SPEED NORMAL button r. The NORM DUB indicator will light at this time.

To high speed dubbing, press the DUBBING SPEED HIGH button r.

The HIGH DUB indicator will light at this time.

6.To stop dubbing, press the STOP ( ) button t of deck A or deck B.

When dubbing, the recording level and the Dolby NR recording will be the same as those of the playback tape, regardless of the positions of the REC LEVEL control and the DOLBY NR button.

When listening to the playback sound during normal speed dubbing, the DOLBY NR switch remains off even if it is pressed.

Operation using the REC MUTE and PAUSE ( ) buttons y, u of deck B is permitted during normal speed dubbing.

SYNCHRO RECORDING PROCEDURE (Deck B)

The following operation is available only when a MARANTZ CD player with the synchro recording capability is connected to the cassette deck.

To use synchro recording, connect the remote control cord terminals on the CD player and cassette deck.

1.Load a cassette tape in Deck B.

2.If Dolby NR recording is required, select type B or C.

3.Press the RECORD/o button to put the cassette deck in record- pause mode.

4.Adjust the recording level with the REC LEVEL control.

5.Start edit playback of the CD player. (The operation procedure may be variable between CD players with edit function. Refer to the instruction manual of your CD player.)

When the MARANTZ CD-57, CD-67 or CD6000 CD player is used, be sure to set the REV. MODE switch to "=". (This causes both tape sides A and B to be recorded automatically.)

When other MARANTZ CD player than the above mentioned models is used, set the REV. MODE switch to "=". (This causes only tape side A or B to be recorded.)

TAPE COUNTER

1) Operation of the Tape Counter		During recording and playback operations, the counter is useful
(1) Press the COUNTER RESET button to reset the counter to		for noting the location of existing programs or positions where
“	”.	recording is to be started.
(2) By using the PLAY, FF, or REW functions, the reading of the		The reading of this counter does not correspond with that of any
counter will change to indicate index position.		other deck.

DOLBY B AND C NOISE REDUCTION SYSTEM

The Dolby noise reduction system substantially reduces the tape background noise (hiss) inherent in the cassette medium.

Tape background noise consists primarily of high frequency information, which is particularly annoying during soft passages, The Dolby NR system increases the level of low volume mid and high frequency signals during recording and reduces the level of these signals by an identical amount during playback, As a result, the playback signal is identical to the original source, but the level of background noise generated by the tape is greatly reduced.

The operating principle of Dolby C NR is similar to that of Dolby B NR except for the encoding/decoding response curves. The noise reduction effect obtained with Dolby C NR is up to 20 dB, compared to 10 dB with Dolby B NR. In addition, Dolby C NR uses an anti-saturation network and spectral skewing circuitry for a significant improvement in the dynamic range of the mid-to high- frequencies.

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