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THANK YOU

Judging from the stereo equipment you own, you rank high

among discriminating music listeners. You are probably no
freshman when it comes to stereo. Never-the-less we ask you
to read and carefully follow these instructions to insure a

successful partnership between you and your new stereo

equipment.

You now have "THE BEST." Used properly you are in for

thousands of hours of musical enjoyment.

If you are in a hurry, read page 3 first. This gives you a brief

outline of what each control and indicator does. Reading time
for this manual is 30 minutes. This is time well spent.

MR 71 FM STEREO TUNER

INTRODUCTION

The Mclntosh MR 71 is a precision engi-

neered, highly sensitive FM Multiplex Tuner.

The research staff of Mclntosh Laboratory

has developed five new tuner circuit improve-
ments for the MR 71.

1. Automatic stereo-mono switching that

is "clickless" and completely electronic.
(Patent applied for.)

2. Multipath indicator to eliminate multi-

path reception by showing when your anten-

na is rotated to the correct position for mini-

mum multipath distortion.

3. Double tuned input circuits before the

first R.F. amplifier to reduce spurious re-

sponses.

4. New D'Arsonval movement meters of

increased sensitivity which do not need zero
setting adjustments.

5. A new computer designed filter to re-

duce noise from stations broadcasting sub-
carrier auxiliary music services. No other
tuner uses such a filter.

The MR 71 also uses the exclusive Mc-

lntosh PANLOC method of installation. The
PANLOC system gives you absolute ease of
installation, operation, and maintenance.

PANLOC is the first professional installation

technique to be used on stereo instruments.

In the PANLOC system a metal shelf is

mounted first. The tuner slides into position
on this shelf. Depressing the PANLOC but-

tons on the front panel locks the tuner firmly

into place for normal operation. To unlock

the tuner depress the PANLOC buttons a

second time. The tuner can now slide from

the front panel. The tuner will lock into this

position, preventing accidental release of

the tuner from the installation. Depressing
the holding latches allows the tuner to be
taken out of the PANLOC shelf or to slide

back into position against the mounting panel.

The finest possible reception of FM mono-

phonic and FM multiplex stereophonic broad-

casts is assured by the Mclntosh MR 71

tuner.

Once you have enjoyed the outstanding

performance of the MR 71, you will under-
stand why Mclntosh products have earned

their reputation as "THE BEST." Your Mc-

lntosh MR 71 tuner will give you years of the

finest possible FM reception, and will be a

valued part of your home music system.

1

Содержание MR 71

Страница 1: ...NFORMATION INSTALLATION CONNECTING Audio Outputs Stereophonic FM Multiplex Monophonic FM Remote Amplifiers Off The Air Recording Antenna Connections OPERATING INSTRUCTIONS Stereophonic FM Multiplex Mo...

Страница 2: ......

Страница 3: ...ich do not need zero setting adjustments 5 A new computer designed filter to re duce noise from stations broadcasting sub carrier auxiliary music services No other tuner uses such a filter The MR 71 a...

Страница 4: ...e cut off for listening to weak and noisy stations A back panel adjust control is fac tory set to the correct muting threshold level The mixer output is amplified through five intermediate frequency s...

Страница 5: ...al workmanship and components of extend to damage incurred during transpor this equipment to be free of defects for a tation to and from Mclntosh Laboratory Inc 3 YEAR FACTORY SERVICE CONTRACT An appl...

Страница 6: ...cator beams remain relatively steady showing that multipath distortion has been eliminated Two pairs of audio output jacks are on the back panel One pair of jacks is controlled only by the front panel...

Страница 7: ...ype Peak detecting self matrixing detector SCA Filter 50db down at 67KC to 74KC 275db per octave slope AutomaticMono StereoSwitch An exclusive Mclntosh development all electronic automatic mono stereo...

Страница 8: ...5 BLOCK DIAGRAM MR 71...

Страница 9: ...ducing multipath reception The MR 71 MULTIPATH INDICATOR shows distortion from multipath signal reception Multipath reception causes the two beams on the indicator to fluctuate rapidly When the antenn...

Страница 10: ...resumed the MR 71 will automatically switch to FM monophonic AUTO FREQ CONTROL The Automatic Frequency Control AFC circuit makes FM tuning easier It eliminates the possibility of tuner drift The AFC c...

Страница 11: ...ntennas to the MR 71 1A SLO BLO FUSE A 1 amp Slo Blo fuse protects the tuner circuits This fuse does not protect additional equipment connected to the back panel AC outlet AC OUTLET Provides 117 volt...

Страница 12: ...gnal appears at both the left and right channel AUDIO OUTPUTjacks REMOTE AMPLIFIERS The pair of audio output jacks not being used in an installation may be connected to external or remote amplifiers A...

Страница 13: ...10...

Страница 14: ...rear panel of the MR 71 OPERATING INSTRUCTIONS STEREOPHONIC FM MULTIPLEX 1 Turn the MODE SELECTOR to STEREO AUTO 2 Turn MUTING to IN 3 Turn the FM TUNING dial to the desired station The TUNING indica...

Страница 15: ...e dial panel lights by means of the PANEL LIGHT switch on the tuner back panel Set the switch to BRIGHT for maximum panel light Set the switch to DIM for less dial light and extended lamp life OUTPUT...

Страница 16: ...FM STATION LOG STATION DIAL FREQ LOG SCALE LOCATION CITY STATE ANTENNA DIRECTION REMARKS MONO STEREO TIME DATE...

Страница 17: ...FM STATION LOG STATION DIAL FREQ LOG SCALE LOCATION CITY STATE ANTENNA DIRECTION REMARKS MONO STEREO TIME DATE...

Страница 18: ...FM STATION LOG STATION DIAL FREQ LOG SCALE LOCATION CITY STATE ANTENNA DIRECTION REMARKS MONO STEREO TIME DATE...

Страница 19: ......

Страница 20: ...2 CHAMBERS STREET BINGHAMTON N Y Made in U S A Phone Area Code 607 723 5491 038 029 BE022003 Printed in U S A LABORATORY INC...

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