Manual Marantz Model 4270 (page 13 of 24) (English)

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or to

monitor

the tape on a three-head recorder

during recording, place the

MONITOR

(TAPE/

SOURCE) pushswitch in the

"TAPE"

(in) posi-

tion.

During recording, the MODE Switch should be

in the DISCRETE,

VARI-MATRIX

or SO DE-

CODER positions. This applies the source signal

unchanged, directly

the tape outputs. '

To record a discrete 4-channel source on a 2-

channel recorder,

put

the MODE Switch in the

2 CH position.

Leave

the TAPE/SOURCE

button

in the SOURCE (out) position while recording.

This

will

feed the sum

the

left-front

and left-

rear inputs

the

left-front

TAPE

MONITOR

OUT jack, and the sum

the

right-front

and

right-rear inputs

the

right-front

TAPE MONI-

TOR

OUT

jack.

To record any type

source on a monaural

recorder,

put

the MODE Switch in

the

MONO

position.

Leave

the TAPE/SOURCE

button

the SOURCE (out) position while recording.

MAIN

AND

REMOTE SPKR SWITCHES

These switches select the loudspeaker terminals

to which audio power is fed. The

MAIN

and

REMOTE groups

loudspeakers may be operat-

ed separately or simultaneously. With both

speaker switches in the

"out"

position, all loud-

speakers

are disconnected. The signal at the

FRONT and REAR PHONES jacks is

not

affected

by the

MAIN

and REMOTE SPKR Switches.

NOTE: When using hoth

MAIN

and REMOTE

speakers

simultaneously, the combined

impedance

all the speakers should

not

less

than 4 Ohms.

POWER SWITCH

This pushswitch turns the Power on or

off.

When

the POWER Switch is

"in",

the dial lamp illumi-

nates. Be sure

turn

the POWER pushswitch

off

before plugging or unplugging the power cord.

FRONT

AND

REAR

PHONES

JACKS

These jacks accept a standard 3-conductor phone

plug employed

with

standard stereo or 4-channel

headphones. When using 2-channel headphones,

insert the plug

into

the

FRONT

PHONES jack.

When using 4-channel headphones, insert the

front

plug

into

the

FRONT

PHONES jack and

the rear plug

into

the

REAR

PHONES jack.

Either high- or low-impedance headphones may

be used.

LOUDNESS

When listening at

low

levels, set this switch

"in"

The LOUDNESS Switch boosts

bass

and treble

tones to compensate

for

the human ear's lack

response to those frequencies at

low

volume

levels.

FILTER

SWITCH

With this pushswitch set

"in",

the High Fre-

quency Filter

suppresses

high frequency noise,

such

"scratch"

from

worn phonograph records

and tape "hiss". The

filter

will

also slightly

reduce high frequencies in the program material.

When the program does

not

have high frequency

noise, the HI

FILTER

pushswitch should be

"out"

TUNING

METER

The Model 4270 is equipped

with

two

meters,

a SIGNAL-STRENGTH Meter and anFM

TUNING

Meter. The SIGNAL-STRENGTH Meter indicates

the signal-strength

any AM or FM broadcast.

The FM

TUNING

Meter operates on

FIVI

only

and

indicates correct station tuning. The

SIGNAL-

STRENGTH Meter acts

a Dolby Calibration

Meter when the

DOLBY

Switch is in any position

other than

"OFF".

TUNING

AM:

For

optimum

reception, tune to the

desired station. Then, rock the

TUNING

knob

slightly back and

forth

until

the maximum

reading is obtained on the SIGNAL-STRENGTH

Meter. The FM

TUNING

Meter is

not

used

for

AM.

FM: Set

the

SELECTOR Switch to

"FM"

and

tune to the desired station. Then, slowly rock

the

TUNING

knob back and

forth

until

the FM

TUNING

Meter points to the center scale posi-

tion.

,.--

- - -

LEFT CHANNEL

COM MON

L..-.----RIGH

CHAN

NEL

Figure

10. Stereophone

Plug

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Marantz Model 4270 Manual

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