NAD 7140 User Manual Download

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Summary of Contents for 7140

Page 1: ...NAD ...

Page 2: ...O USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL 1 Power 2 Phones 3 Speaker Selector 4 Bass 5 Treble 6 Bass Equalization 7 Infrasonic Filter Defeat 8 Mono 9 Dyn Sep Defeat 10 TapeMonitor 11 Input Selector 12 Low Level 13 Loudness Compensation 14 Volume Balance 15 TuningSearch 16 Up Down Tuning 17 AM FM 18 Memory Enter 19 Station Pre Sets 20 FM Stereo Indicator 21 Soft...

Page 3: ...ly propor tional to the height of the antenna above the ground If you already have an outdoor television antenna using a splitter to extract FM signals from it may produce excellent results However many TV antennas are deliberately de signed to be relatively weak at FM frequencies in order to minimize potential interference with TV signals at nearby frequencies Channel 6 in the U S You may be able...

Page 4: ...all of the other input output jacks on this amplifier the upper jack in each pair is for the Left channel and the lower jack is for the Right channel 4 9 TAPE REC PLAY The tape connections may be used with recorders of all types cassette micro cassette open reel digital etc To make recordings connect a stereo patch cord from the amplifier s TAPE OUT RECording jacks to the recorder s LINE INPUT jac...

Page 5: ...ier For best results the bridging mode should be used with only a single 4 ohm or 8 ohm speaker in each channel 5 CAUTION In the bridged mode the speaker wires must be floating with respect to the circuit ground Do NOT connect the speaker wires to anything which shares a common ground between stereo channels such as a speaker switch or an adapter for electrostatic headphones nor to anything which ...

Page 6: ...er s output power is fed to both pairs of speakers in parallel At the OFF setting both pairs of speakers are silenced Thus if you have your main stereo speakers wired to the J terminals and a set of extension speakers wired to the B terminals you can choose to hear only the main speakers A only the extension speakers B or both A B The amplifier s output signal is present at the PHONES jack at all ...

Page 7: ...atically switches on the stereo decoding when a stereo FM broadcast is received as shown by the illuminated FM STEREO indicator But when a very 7 weak FM stereo signal is received it may be excessively noisy because of the multiplex encoding technique used for stereo broadcasting In that case depress the MONO switch to lock the tuner in the mono mode in order to obtain consistently quieter and cle...

Page 8: ...akers Examples include unequal output from the two channels of the phono cartridge different acoustical environ 8 ments around the two loudspeakers or simply a listening position that is closer to one speaker than to the other Adjust the Balance control to produce a natural spread of sound across the space between the speakers with any monophonic sound such as a radio announcer s voice appearing a...

Page 9: ...M 1290 kHz The fifth digit of the FM frequency display is reduced in size it will be either 0 or 5 since the smallest tuning increment is 0 05 MHz Signal strength The signal strength meter is a series of five bars The number of illuminated bars increases with the strength of the received signal If only one or two bars illu minate the signal is too weak for noise free reception in stereo but recept...

Page 10: ...NAD ELECTRONICS BOSTON LON G ON TOKYO ...

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