Geräte Informationen:

Lafayette LR-120DB Receiver
Hersteller:
Lafayette
Modell: LR-120DB
Datum: 1978
Kategorie: Audio, Video, TV, Multimedia
Gruppe: Receiver
Beschreibung: AM/FM Stereo Receiver
Informationen:
                                    The Lafayette LR-120DB is a highly sophisticated solid-state
stereophonic high fidelity receiver that combines an AM
tuner, a highly sensitive FM stereo tuner, and a high
quality integrated stereo amplifier in one single,
handsomely styled unit.
The receiver not only offers all the advantages expected
from solid-state circuitry such as instant operation, low
current consumption, and cool operation, but also provides
extremely low distortion and noise, plus wide frequency
response at its full rated power to ensure the finest sound
reproduction.
Stereo inputs have been provided for reproduction from a
wide variety of external program sources that you may wish
to use — a record players, tape recorders, tape players, etc.
Some of the special features that have been incorporated in
this receiver to ensure a high degree of performance and to
provide complete flexibility of operation are as follows:
* 75 ohm and 300 ohm antenna inputs for FM.
* Sensitive dual-gate MOS FET in the FM RF section with
4-section variable capacitor.
* Two 2-element ceramic filters and 6-pole Linear Phase LC
Block Filter used in the IF section for high selectivity.
* PLL [Phase Lock Loop) IC used in the FM stereo decoder
section for optimum stereo performance with minimum distortion.
* A newly-developed IC functioning as an IF amplifier, a
low-distortion Quadrature FM detector, a driver for the
tuning meters, and as a sophisticated FM muting circuit
which not only eliminates noise between stations on FM in
the conventional manner, but also silences the receiver when
not properly turned to a station.
* Dual Tuning Meters used — a conventional signal strength
meter plus an FM center-tuning meter for precise tuning.
* Power Output Meters are provided for both channels to
allow reading of average power with the aid of Meter Range
Button.
* Built-in Dolby Noise reduction circuit for decoding Dolby
FM broadcasts.
* Two sets of magnetic phono inputs accommodating a range of
cartridge output levels from 2.5mV to 600mV (for rated power
output).
* A single microphone input controlled by a mic on-off
switch and level control for convenient mixing with other
program sources.
* Two-position turnover frequency switches for Bass and
Treble controls.
* Direct-coupled OCL power amplifier stages.
* Amplifier output stages protected by a dual system of
relay and electronic overload protection circuitry.
* FM Mute Level Control — adjusts the FM muting level.
* Audio-Mute Switch — reduces receiver volume to one of two
low levels (~15dB, —30dB).
* Quick-connect output terminals for up to three sets of
stereo speakers.
* Antenna Attenuate Switch — Acts as a Local-Distance Switch.
* 2-position Low Frequency Filter Switch (15 or 70Hz).
* 2-position High Frequency Switch (7 or 12kHz).
* Dual Tape Monitoring facilities plus special dubbing
switch to permit recording from one tape recorder onto
another in either direction.
4
In order that you may benefit from the many operating and
performance features designed into this receiver, we
recommend that you carefully read all the instructions
contained in this manual. Also, we suggest that you keep the
manual close at hand and in a safe place so that you can
refer to it when necessary.

Folgende Anleitungen sind für obiges Gerät verfügbar:

Lafayette -- LR-120DB -- Service- und Bedienungsanleitung
Dateiname: Lafayette-7083-Manual-Page-1-Picture
Dokumenttyp: Service- und Bedienungsanleitung
Seitenanzahl: 67
Dateigröße: 16.72 Mbytes (17532683 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 21-03109HW
Datum: 1978
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
MD5: 99a219e1acecab1e82243549e9e3279b
ed2kID: 5fe40c694fcd506d578a7a531b77b478
Downloads: 46 seit 05 September 2015
Informationen:
GENERAL DESCRIPTION
.........................................................................................................................................................
4
INSTALLATION...............................................................................................................................................................................6
AC
Power......................................................................................................................................................................................g
Convenience
Outlets.................................................................................................................................................................g
Ground Connection
.................................................................................................................................................................g
ANTENNAS
.........................................................................................................................................................................................g
AM
..................................................................................................................................................................................................g
FM
..................................................................................................................................................................................................6
FM Antenna Attenuate
Switch............................................................................................................................................8
CONNECTING YOUR ASSOCIATED
EQUIPMENT..........................................................................................................
9
Loudspeakers..............................................................................................................................................................................
9
Impedance of Speakers
Used................................................................................................................................................11
Stereo
Headphones..................................................................................................................................................................13
Connecting a Stereo Record Player
.................................................................................................................................13
Stereo Tape Recorder Connections
.................................................................................................................................<12
Connecting an 8-Track Stereo Tape
Player......................................................................................................................15
DESCRIPTION OF RECEIVER CONTROLS
......................................................................................................................15
OPERATING
PROCEDURES......................................................................................................................................................20
Tuning in FM
Stereo...............................................................................................................................................................21
Interference on
FM..................................................................................................................................................................21
Reducing Noise on FM
Stereo.............................................................................................................................................21
A Quick Guide to Operating Your Stereo
Receiver....................................................................................................22
Operation of the FM Mute
Circuit....................................................................................................................................23
Adjusting the FM Muting
Level.................................................................................................................................24
Adjusting Phono Input Sensitivity on the Receiver
.....................................................................................................24
Stereo Tape Recorder Operation
.......................................................................................................................................25
Recording/Playback using one tape recorder
.......................................................................................................25
Simultaneous Recording [two recorders connected]
.........................................................................................25
Dubbing or Duplicating [two recorders
connected]............................................................................................25
Recording on one tape recorder while playing tape on
another....................................................................26
Playback [two recorders connected]
......................................................................................................................27
8-Track Tape Player
Operation..........................................................................................................................................27
Microphone
Operation............................................................................................................................................................27
Bass and Treble Turnover Switch
Action.........................................................................................................................27
Speaker
Phasing........................................................................................................................................................................28
Power Overload Safeguard
System....................................................................................................................................29
TROUBLE-SHOOTING GUIDE
................................................................................................................................................30
RETURNING THE UNIT FOR
SERVICE..............................................................................................................................30
Shipping Instructions
............................................................................................................................................................31
TECHNICAL
SPECIFICATIONS................................................................................................................................................32
INSERTS [1] Schematic Diagram/Interior Parts Location/PC
Board Diagrams.
[2] Operating Chart.
[3] Front Panel Operating Controls/Connecting Associated
Equipment.
Lafayette-7083-Manual-Page-1-Picture
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