Equipment information

Lafayette LR-9090 Receiver
Manufacturer
Lafayette
Model LR-9090
Date 1977
Category: Audio, Video, TV, Multimedia
Group Receiver
Description AM/FM stereo Receiver
Information
                                    The Lafayette 9090 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—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.
* Three 2-element ceramic filters 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 tuned to a station.
* Dual Meters used — a conventional signal strength meter
plus an FM center-tuning meter for precise tuning.
* 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
2.5 mV to 36Q mV [for rated power output].
* Stereo microphone input controlled only by a mic 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.
* Quick-connect output terminals for up to three sets of
stereo speakers.
* 2-position 12 dB/octave Low Frequency Filter switch [15 or
40 Hz].
* 2-position 12 dB/octave High Frequency Filter switch [7 or
12 KHz].
* Dual Tape Monitoring facilities plus special dubbing
switch to permit recording from one tape recorder onto
another in either direction.

These manuals are available for the above equipment:

Lafayette -- LR-9090 -- Service and User Manual
File name Lafayette-7082-Manual-Page-1-Picture
Manual Type Service and User Manual
Pages 62
Size 16.69 Mbytes (17495833 Bytes)
Language english
Revision
Manual-ID/Number 99-03675W
Date
Quality Scanned document, all readable.
Upload date
MD5 66dba840891bd9c62ca7c0a7236a7418
Downloads 153 since 05 September 2015
Information
Lafayette-7082-Manual-Page-1-Picture
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Lafayette -- LR-9090 -- User Manual with schematics
File name Lafayette-7084-Manual-Page-1-Picture
Manual Type User Manual with schematics
Pages 45
Size 16.95 Mbytes (17770700 Bytes)
Language english
Revision
Manual-ID/Number
Date 1977
Quality Scanned document, all readable.
Upload date
MD5 027a1bc9c1cb38c271e3f223db4ed712
Downloads 124 since 06 September 2015
Information
GENERAL
DESCRIPTION.................................................................................................................................................
4
INSTALLATION......................................................................................................................................................................
5
AC
Power........................................................................................................................................................................
5
Convenience
Outlets....................................................................................................................................................
5
Ground Connection
....................................................................................................................................................
5
ANTENNAS
..............................................................................................................................................................................
5
AM
....................................................................................................................................................................................
5
FM
....................................................................................................................................................................................
5
CONNECTING YOUR ASSOCIATED EQUIPMENT
..............................................................................................
7
Loudspeakers...................................................................................................................................................................
8
Stereo
Headphones.......................................................................................................................................................10
Connecting Stereo Record
Players..........................................................................................................................10
Stereo Tape Recorder Connections
........................................................................................................................10
Connecting an 8-Track Tape Player
........................................................................................................................12
DESCRIPTION OF RECEIVER
CONTROLS............................................................................................................12
OPERATING PROCEDURES
...........................................................................................................................................17
Tuning In FM
Stereo....................................................................................................................................................17
Interference On FM
....................................................................................................................................................18
Reducing Noise On FM Stereo
................................................................................................................................18
Adjusting Phono Input Sensitivity On The Receiver
........................................................................................20
Stereo Tape Recorder
Operation.............................................................................................................................21
Recording/Playback using one tape recorder
...........................................................................................21
Simultaneous Recording [two recorders connected]
............................................................................21
Duplicating [two recorders
connected].......................................................................................................21
Playback [two recorders connected]
.........................................................................................................22
8-Track Tape Player
Operation................................................................................................................................22
Microphone
Operation.................................................................................................................................................22
Bass and Turnover Switch Action
...........................................................................................................................23
Power Overload Protection
Circuit..........................................................................................................................24
TROUBLE-SHOOTING
GUIDE.........................................................................................................................................24
RETURNING THE UNIT FOR
SERVICE..................................................................................................................25
Shipping Instructions
.................................................................................................................................................25
TECHNICAL
SPECIFICATIONS......................................................................................................................................26
INSERTS: [1] Schematic Diagram/Interior Parts Location/PC
Board Diagrams
[2] Operating Chart
[3] Front Panel Operating Controls/Connections to Associated
Equipment.
/
Lafayette-7084-Manual-Page-1-Picture
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