Bedienungsanleitung Marantz Model 2252 (Seite 10 von 20) (Englisch)

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BASS, MID AND TREBEL CONTROLS

These controls are used to adjust the tonal bal-

ance of program material to suit individual listen-

ing preference.

TUNING METER

The Model 2252 is equipped with two meters, a

SIGNAL STRENGTH Meter and a TUNING

Meter.

1. The SIGNAL STRENGTH Meter indicates the

signal strength of any AM or FM broadcast.

2. The TUNING Meter operates on FM only and

indicates correct center tuning of the station.

GYRO-TOUCH TUNING CONTROL

Switch the SELECTOR to AM and tune to the

desired station. Then rotate the GYRO-TOUCH

TUNING knob slightly back and forth until the

maximum reading is obtained on the SIGNAL

STRENGTH Meter. The TUNING Meter is not

used for AM.

Switch the SELECTOR to FM and tune to the

desired station. Then slowly rotate the GYRO-

TOUCH TUNING knob back and forth until

maximum reading is obtained on the SIGNAL

STRENGTH· Meter and the TUNING Meter

points to the center scale position. The multiplex

section of the Model 2252 is equipped with elec-

tronically triggered circuits which mute inter-

station noise and automatically switch to the

proper mode of operation for stereo and mono-

phonic FM broadcasts. In addition, the STEREO

indicator light automatically indicates a stereo

broadcast.

LEFT CHANNEL

COMMON

RIGHT CHANNEL

Figure 6. Stereophone Plug

FM-25/lS SWITCH

To listen to a Dolbyized FM broadcast, connect a

Dolby noise reduction adaptor between the TAPE

lOUT and IN jacks on the rear panel of the

Model 2252. Depress the FM-25/lS pushswitch,

and depress the TAPE 1 MONITOR switch. With

the FM-25/lS switch in, the audio output signals

an~ preset internally to standard Dolby level, and

the de-emphasis time constant applied to the

signals is also switched to 25/lsec automatically.

SYSTEM l-SPKR-SYSTEM 2 SWITCHES

These switches select the loudspeaker terminals

to which audio power is fed. Either the SYSTEM

1 or the SYSTEM 2 stereo pair of loudspeakers

may be operated individually, or simultaneously

if both switches are depressed. When the two

SYSTEM l-SPKR-SYSTEM 2 switches are in the

normal "out" position, all loudspeaker terminals

are internally disconnected from the power ampli-

fier section. The signal at the headphones jack is

not affected by the SYSTEM l-SPKR-SYSTEM 2

switches. The "out" position allows "private

listening" when stereo headphones are used.

NOTE: Volume level should be reduced to

minimum when switching speakers.

PHONES JACK

This jack accepts headphones utilizing a standard

three conductor phone plug (see Figure 6). It is

internally connected to the power amplifier sec-

tion through isolation resistors to provide ade-

quate sound level with popular low impedance

headphones as well as with high impedance units.

Two or more sets of headphones may be used

with the aid of "Y" connectors. However, output

level will drop as additional headphones are

added. The headphone jack output is not affected

by the SYSTEM l-SPKR-SYSTEM 2 switches.

FM MUTING SWITCH

When tuning to FM broadcasts with the MUTING

switch in its "in" position, the muting circuit will

eliminate interstation noise. To prevent muting

very weak stations along with the noise, the

muting action may be switched off by releasing

the MUTING pushswitch.

LOUDNESS SWITCH

The LOUDNESS switch compensates for human

hearing characteristics by boosting the bass and

treble response at low volume levels to achieve a

more pleasing tonal balance.

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Marantz Model 2252 Seite 10

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