McIntosh 1200 Istruzioni per l'uso e l'installazione

STEREOTECH

AM/FM

RECEIVER

SERVICE

INFORMATION

SERIAL

NUMBER

BKIOOI

AND

ABOVE

1200

PERFORMANCE

DETAILS

PREAMPLIFIER

AND

POWER

AMPLIFIER

POWER

OUTPUT

watts

minimum

sine

wave

continuous

average

power

out¬

put,

per

channel,

both

channels

operating

into

ohms

load

im¬

pedance.

watts

minimum

sine

wave

continuous

average

power

out¬

put,

per

channel,

both

channels

operating

into

ohms

load

im¬

pedance.

OUTPUT

LOAD

IMPEDANCE

ohms

RATED

POWER

BAND

20,000

TOTAL

HARMONIC

DISTORTION

0.2%

maximum

harmonic

distor¬

tion

any

power

level

from

250

milliwatts

rated

power

per

channel

across

ohms

ohms;

both

channels

operating.

INTERMODULATION

DISTORTION

0.2%

instantaneous

peak

power

output

twice

rated

power

less

per

channel

with

both

channels

operating

for

any

combination

frequencies

20,000

FREQUENCY

RESPONSE

20,000

±1

NOISE

AND

HUM

Power

Amplifier:

below

rated

output

Tape

and

Tape

Aux

and

Aux

below

rated

output

Phono

and

Phono

below

input

RATINGS

DAMPING

FACTOR

ohms

output

ohms

output

INPUT

SENSITIVITY

AND

IMPEDANCE

Power

Amplifier:

1.2

volts,

40,000

ohms

Phono

and

Phono

3.0

mV,

47,000

ohms

Tape

and

Tape

350

mV,

100,000

ohms

Aux

and

Aux

350

mV,

100,000

ohms

TAPE

OUTPUT

Preamp:

volts

with

rated

input

Tuner:

1.2

volts

100%

modulation

Tape:

350

with

rated

input

from

low

level

inputs

Phono:

1.2

volts

with

input

1000

TONE

CONTROLS:

Bass

+16

Hz.

Treble

20,000

Hz.

L.F.

FILTER:

Active

filter

with

per

octave

roll

off

below

Hz,

down

Hz.

H.F.

FILTER:

Active

filter

with

per

octave

roll

off

above

7000

Hz,

down

20,000

Hz.

TUNER

TUNING

RANGE:

535

1605

kHz.

SENSITIVITY:

juV

IHF

(external

ant.)

SIGNAL

NOISE

RATIO:

minimum

(IHF,)

100%

modulation.

HARMONIC

DISTORTION:

Less

than

(IHF.)

IMAGE

REJECTION:

Greater

than

535

1605

kHz.

TUNER

TUNING

RANGE:

87.5

108.5

MHz.

USEABLE

SENSITIVITY:

2.5

microvolts

100%

modulation

(+75

kHz

deviation)

for

total

noise

and

harmonic

distortion

(IHF).

SIGNAL

NOISE

RATIO:

below

100%

modulation.

HARMONIC

DISTORTION:

Less

than

0.5%

mono

and

less

than

0.7%

stereo.

AUDIO

FREQUENCY

RESPONSE:

10,000

Hz,

±2

15,000

Hz.

SELECTIVITY:

alternate

channel

minimum

(IHF)

SPURIOUS

REJECTION:

minimum

(IHF)

IMAGE

REJECTION:

minimum

STEREO

SEPARATION:

minimum

1,000

Hz.

SCA

FILTER:

minimum

GENERAL

INFORMATION

POWER

REQUIREMENTS:

120

volts

50-60

watts

zero

input,

320

watts

rated

output.

SEMICONDUCTOR

COMPLEMENT:

Transis¬

tors;

FETs,

ICs,

Diodes.

MECHANICAL

INFORMATION

SIZE:

Front

panel

measures

17-1/2

inches

wide

(444

mm),

5-5/32

inches

high

(131

mm).

Chassis

meas¬

ures

16-15/16

inches

wide

(430

mm),

4-5/8

inches

high

(117

mm),

15-7/8

inches

deep

(403

mm)

plus

antenna.

Knob

clearance

required

1-1/2

inches

(31

mm)

front

the

mounting

panel.

WEIGHT:

pounds

(14.97

kg)

net,

pounds

(17.69

kg)

shipping

cartons.

LOUDNESS

TONE

AMP

NEG

FEEDBACK

TONE

CONTROL

NEG

FEEDBACK

TONE

CONTROL!

TONE

AMP

DIFFERENTIAL

AMP

POWER

CONTROLLER

SIGNAL

STRENGTH

ci_

RIGHT

DE-EMPHASIS

LEFT

INPUT

SELECTOR

SWITCH

RIGHT

INPUT

SELECTOR

SWITCH

BLOCK

DIAGRAM

ANT

RI02

<RI0l

>IM

OOOK

TRIOI

2SK4IE

CI02

(2SKI9)

0.01

TRI02

2SK4IE

Cl07

(2SKI9)

0.01

/TN

044458

TUI'

BOARD

Rl09

100

R105

VCIOl

330

V—

RIlO

VCIOl

TCI03

330

-1

C452

4.7P

TCI07

VCIOl

TCI06

044461

MPX/AFL

MUTING

PCB

ANT

MAC

1200

TUNER

SECTION

R4I6

470

0415

0.02

C405

I/50V+20%

,C407

0.005

L40I

C403

C404

0.02

0.04

C408

3.3/25V

±20%

R40B

I_1

L402

AM-FM

TUNER

1200

f—If—ll'

+I6V

04461

MPX/AFL

MUTING

PCS

154-603

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