McIntosh MR 7083 Owner's Manual
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McIntosh MR 7083 Owner's Manual

Am/fm tuner
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  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS THESE INSTRUCTIONS ARE TO PROTECT YOU AND THE MclNTOSH INSTRUMENT. BE SURE TO FAMILIARIZE YOURSELF WITH THEM. 1. Read all instructions - Read the safety and 13. Nonuse Periods - Unplug the power cord from the operating instructions before operating the AC power outlet when left unused for a long instrument.
  • Page 3 The serial number, purchase date, and Mclntosh Laboratory Service Contract number are important to you for possible insurance claim or future service. The lightning flash with arrowhead, within an Record this information here. equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage"...

  • Page 4: Table Of Contents

    Contents Your MR 7083 AM/FM Digital Tuner will give you INTRODUCTION 3 many years of satisfactory performance. If you have any questions, please contact, INSTALLATION 4, 5 HOW TO CONNECT 6, 7 CUSTOMER SERVICE CONNECTING DIAGRAM 8 Mclntosh Laboratory Inc.

  • Page 5: Introduction 3

    Mclntosh, you bought not only high techno- Mclntosh IR Remote Control system. logy, you bought technological integrity proven by All in all, your selection of the MR 7083 will be time. The Mclntosh MR 7083 Tuner is continuing reinforced by your day-to-day use of this superb evidence of Mclntosh technological superiority and instrument.

  • Page 6: Installation

    (43.2 cm) wide, and 6 inches (15.2 cm) high. dimensions of the chassis. Make sure these lines The MR 7083 may be installed in a Mclntosh clear shelves, partitions, or any equipment. With the cabinet or custom installed in furniture of your template in place, first mark the six A and B holes choice.
  • Page 7 4. Saw the Panel Cutout Saw carefully on the inside of the penciled lines. First make the two long cuts and then the two short cuts. After the rectangular opening has been cut out, use a file to square the corners and smooth any irregularities in the cut edges.

  • Page 8: How To Connect

    Any one of four different FM antenna systems stations on either FM or AM, search sequentially can be used with your MR 7083. 1) an outdoor FM the programmed stations on FM or AM and scan antenna, 2) an all-channel (UHF-VHF-FM) antenna, the entire FM or AM band.
  • Page 9 A 75-ohm matched dipole antenna supplied with your MR 7083 may be used in urban or in high signal strength areas. The flexibility of the thin wire assembly permits it to be placed under a rug, tacked behind the stereo, or placed in any other convenient location.

  • Page 10: Connecting Diagram

    AM LOOP ANTENNA HIGH SENSITIVITY AM LOOPSTICK ANTENNA VARIABLE OUTPUT ADJUSTMENT ANTENNA TO AC POWER SOURCE ALTERNATE CONNECTION TO FIXED LEVEL OUTPUT TO MclNTOSH INFRARED REMOTE CONTROL EQUIPMENT MclNTOSH PREAMPLIFIER OSCILLOSCOPE 8 CONNECTING DIAGRAM...

  • Page 11: Front Panel Controls 9

    Fold out the photographs on the inside of the back E. MONO cover. They will assist you in connecting the MR 7083 The MONO touchbutton switches the audio to your system. The numbers on the photographs refer output of the tuner to MONO and lights the to the paragraphs that follow.
  • Page 12 desired station with either the manual tuning knob or SCAN tuning. Press the ENTER touchbutton. Then, within 5 seconds, press a touchbutton, 1 through 8, and the station tuned will be recorded in the elec- tronic memory. The preset memory circuits are maintained by a special long life battery power supply.

  • Page 13: Performance Limits 11

    50dB at 30% modulation from perfection permitted for a Mclntosh instrument. 60dB at 100% modulation We promise you that your MR 7083 must be capable HARMONIC DISTORTION of performance at or exceeding these limits or you 0.5% maximum at 30% modulation get your money back.

  • Page 14: Performance Charts

    F M P e r f o r m a n c e a t 9 8 M H z P e r f o r m a n c e a t 1 M H z 4 0 0 H z 3 0 % M o d u l a t i o n 1 k H z M o d u l a t i o n...

  • Page 15: Technical Description 13

    FM detection are all functions of TUNING SYSTEM the last IF integrated circuit. The MR 7083 has three modes of tuning, MANUAL, A phase locked loop (PLL) stereo decoder SCAN, and PRESET. integrated circuit is the heart of the multiplex In the MANUAL mode, two photo electric sensors section.
  • Page 16 ANTENNA INPUTS The MR 7083 is provided with a 75 ohm coaxial antenna input. It is a standard "F" connector that mates with most common antenna and cable service feedlines. This type of input combines low loss with interference rejecting shielding.

  • Page 17: Block Diagram 15

    BLOCK DIAGRAM 15...
  • Page 18 THE LOCATION OF CONTROLS The numbers and letters correspond to the paragraphs on pages 6, 7, 9 and 10...

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