Bedienungsanleitung Marantz CD-400B (Seite 9 von 14) (Englisch)

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OPERATION

NOTES

,FUNCTIONAL

QESCRIPTION

1. Separation

Adjustment

the

CD-4 record two

sigAals

are superimposed

Once

the

separation controls are set

they

each wall

the

same groove. One

the

SUM

should

not

need readjustment until

the

car-

SIGNAL

(or

Rs).

The

other

tridge

and/or

stylus

replaced.

KHz carrier modulated itl frequency by

the

Anti-Skating

DIFFERENCE SIGNAL

(or

.:.

Rs).

For

optimum

results

with

the

CD-400B,

the

Referring

the

block diagram of Figure 5,

the

anti-skating force

the

turntable

should

compositesignal picked up

b¥

the

phone

cartridge

carefully adjusted in, accordance with

the

first passed through a circuit which provides

manufacturer's instructions.

standard RIAA equalization. Its

output

signal

3. Cartridges

split into

two

different paths: One

path

goes

Only a magnetic cartridge designed for CD-4

through a Low Pass filter

that

lets only

the

sum

reproduction will provide usable playback re-

signal through

the

·mixing circuit while stop-

sults.

The

cartridge must be

mounted

per-

ping

the

carrier. A separation

adjustmentis

included

pendicularto

the

record surface. See Figure 4. '

this path

compensate for

the

variation

:in

The stylus must be

kept

clean. Consult

your

output

level from different cartri.dges.

The

bther

dealer

for

cleaning accessories.

path

.takes

the

signal through a

High

Pass Filter

4. Turntable Leads

which blocks

the

sum

signal,

but

allows

the

Only coaxial

audio

cables designed for CD-4

modulated high frequency carrier

-to

be presented

use should be used. Consult

your

dealer for

the

Detector,

after

amplification

proper type.

the

proper level. There,

the

difference signal

recovered (detected) by means

a low distortion

TV Interference

A TV

set

located near

the

CDA

record player

Phase Locked Loop circuit.

The

kHz level

may interfere with playback

CD-4 discs.

automatically adjusted

suit

different

types

this should occur, either

turn

off

the

cartridges

and

set-up conditions.

move

the

record player away from

the

TV.

The Low Pass filter

that

follows

the

detector

6. Record Care

suppresses

any

vestiges of

the

high frequency

CDA records require cleanliness. Keep

them

carrier, leaving only

the

original difference signal.

away from dust, dirt and cigarette smoke.

recording,

the

frequency response

the

differ-

Clean

them

with a high quality record clean- ence signal

modified

improve signal-to-noise

ing device before playing and before storing.

ratio and crosstalk. The circuits labelled De-

not

use solvents or water because

they

will

emphasis and

the

CD-400B block diagram

increase noise

the

discs.

WRONG

,--

J RECORD

SURFACE

are intended

restore

the

original response

Figure

Cartridge

Mounting

RIGHT

r---WRONG

CARTRI.DGE

RECORD

SURFACE

--:-;-""'-_J

RECORO

AFACE .

90°

a..-_~

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Marantz CD-400B Seite 9

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