User manual MCINTOSH MR7082

[. . . ] 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 operating instructions before operating the instrument. Retain Instructions - Retain the safety and operating instructions for future reference. [. . . ] In fringe areas, best results will be obtained with a highly directional FM antenna used with a rotator. Adjust the position of the antenna until the best reception is obtained. A 75-ohm matched dipole antenna supplied with your MR 7082 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. In some cases, it may be necessary to position the antenna for best signal reception. Avoid locating this antenna next to other wires or metal objects. An indoor antenna may not 3. 6 HOW TO CONNECT prove effective in houses having metal siding or metal insulation. Although a 75-ohm coaxial feedline offers the best noise and multipath rejection, many antennas use 300-ohm twin lead. In this case, use a matching transformer (balum) to convert a 300-ohm antenna to the 75-ohm input impedance of the tuner. AC POWER Plug the AC power cord into a 120 volt 50/60 Hz wall outlet. The plug blades are polarized so be certain the plug is fully inserted in the outlet to prevent blade exposure. CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THE (POLARIZED) PLUG ON THIS UNIT WITH AN EXTENSION CORD, RECEPTACLE, OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE. Charging The Electronic Memory Battery Power Supply A very long life, rechargeable battery power supply provides the energy to the electronic memory when the tuner is turned off. When first connected, it is wise to assume that the batteries have not been charged. The charge rate is dictated by the 'on' time of the tuner. To bring the batteries to full charge, operate the tuner for twenty four continuous hours. After the batteries are fully charged, using the tuner for approximately one hour per week, will maintain the batteries in a fully charged state. When fully charged, the batteries will provide the energy to retain the programmed instructions for more than six months with the tuner turned off. Battery life is dependent on usage, storage, temperature, and time. Do not attempt to remove the batteries from the MR 7082. Battery replacement should only be done at a Mclntosh authorized service agency. HOW TO CONNECT 7 75ohm ANTENNA TO MclNTOSH INFRARED REMOTE CONTROL PREAMPLIFIER AMPLIFIER MAIN AREA SPEAKERS 8 HOOK-UP DIAGRAM Fold out the photographs on the inside of the back cover. They will assist you in locating the controls and touchbuttons. [. . . ] It switches automatically to monophonic if the 19 kHz pilot tone is absent. Additional advantages of the phase locked loop stereo demodulation are the elimination of inductors to minimize drift, integral lamp driving capability to indicate the presence of the 19 kHz pilot carrier, excellent channel separation over the entire audio frequency range, extremely low distortion, low output impedance, and transient-free mono/stereo switching. 19 AND 38 kHz FILTER An LC tuned notch filter is used to eliminate any beatnote interference with the bias oscillator in a tape recorder. This filter is driven from a filter buffer amplifier and terminated by the output operational amplifier. [. . . ]