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BACK PANEL INFORMATION

TP 2

Test point TP 2 is provided for tuner circuit

alignment. It is also used in conjunction with

the Mclntosh Ml 2 or Ml 3.

OUTPUT ADJ

This dual concentric control adjusts the

output volume levels at the left-hand pair of
AUDIO OUTPUT JACKS. The center shaft
adjusts the LEFT channel output, and the

outer sleeve adjusts the RIGHT channel out-

put. These output control settings for the left
pair of  j a c k s are not affected by the MR 71

front panel volume control.

MUTING ADJ

Adjust the operating threshold of the ultra-

sonic muting circuit.

AUDIO OUTPUT-LEFT-RIGHT

The left-hand pair of AUDIO OUTPUT  j a c k s

provides audio signals unaffected by the
MR 71 front panel VOLUME control. The dual

concentric OUTPUT ADJUST controls set the
volume levels. Use these output jacks to con-

nect the tuner to a stereo control preampli-

fier which has its own master volume control.

The right hand pair of AUDIO OUTPUT

jacks provides audio signal controlled by the

MR 71 front panel VOLUME control. Use

these output jacks to connect to external

power amplifier, tape recorders, or any

equipment which requires continuous front

panel control of tuner output volume.

300 OHM-75 OHM ANTENNA

Terminal for connecting FM antennas 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 AC power up to 350 watts

maximum for additional equipment such as

turntables, or other tuners. This outlet is not

fused. It turns on and off with the front panel

MODE SELECTOR switch.

PANEL LIGHT SWITCH

Adjusts the panel lights to bright or dim.

INSTALLATION

The Mclntosh MR 71 tuner may be in-

stalled on a table, on a shelf, in a custom

built-in cabinet, or in a professional equip-

ment rack. For best appearance in an open

installation, mount the MR 71 in the attrac-

tive Mclntosh L11 cabinet. The L12 is oiled
walnut. The L11 is lacquered walnut.

The MR 71 tuner is installed by the new

exclusive Mclntosh PANLOC method. Refer

to the special PANLOC SYSTEM INSTALLA-

TION instructions included with your MR 71.

Allow at least 13¾ inches behind the mount-

ing panel for the MR 71 chassis. This in-

cludes clearance for leads and connectors.
Allow inside dimensions of at least 16½

inches in width and 6 inches in height for

adequate air circulation. The back of the

MR 71 cabinet should be as open as possible

for the best ventilation. Avoid mounting the
tuner directly over a power amplifier. The

heat from the amplifier may change the

precision tuner calibration. Adequate ventila-

tion will give your tuner long trouble-free life.

8

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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