Sansui TU 7700 Owners Manual

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OPERATING INSTRUCTIONS

STEREO TUNER
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SANSUI Ill-7700

SANSUI ELECTRIC CO., LTD.

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We are grateful for your choice of the Sansui TU-7700 AM/l-M stereo tuner.
Before you begin to operate it, may we suggest that you read this booklet of
operating instructions as well as the instructions sheet once carefully? You will

then be able to connect and operate it correctly, and enjoy its superb performance
for years.

.FUNCTIONAL FEATURES

* Smooth tuning feel.

The SIGNAL and TUNING meters permit instant and
accurate station pinpointing. The FM STEREO indicator

lights up to let you know when the broadcast you're
receiving is in stereo.

* Adjustable output level.

The set is equipped with an OUTPUT LEVEL control on
the front panel, you can match the output level of the
tuner with that of any other program source (such as a deck
or a turntable), connected to your amplifier. Therefore, you
do not need to take trouble and adjust the volume control
when switching from the tuner to a tape deck or turntable,
or vice versa.

Extra conveniences for clear FM reception.

The set is provided with easily-accessible front-panel
switches for steady and clear FM reception. The PM
MUTING and MPX NOISE CANCELLER switches come in
handy for those living in areas where signal strength is too
weak, i.e. the locations where the desired station may
be very far or where tall buildings may be dominating the
area. The FM ATTENUATOR switch is for those who live
in areas where signal strength is too strong.

* Device for reduced multipath reception.

Switching the METER SELECTOR switch to MULTIPATH
lets the SIGNAL meter function as multipath detection
meter. You can thus easily orient an FM antenna in a
direction where the multipath reflection is minimum and
therefore you hear the optimum FM reception with least
distortion. More critical multipath check is possible when
an oscilloscope is connected to the FM MULTIPATH OUT-
PUT terminals on the set's rear panel.

* Terminals provided for two different types of FM antennas.

Provisions are made for both 75-ohm and 300-ohm FM
antenna terminals. Connection is extremely simple when
setting up an outdoor antenna using either a 75-ohm
unbalanced coaxial type lead-in cable or a 300-ohm
balanced feeder type lead-in cable.

Table of Contents
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IMPORTANT PRECAUTIONS 2

REAR-PANEL CONNECTIONS 3

HINTS FOR BETTER RECEPTION 4

OPERATING PROCEDURES 5, 6
CONDITIONS MISTAKEN FOR BREAKDOWNS 7
INSTALLING OUTDOOR FM ANTENNA CORRECTLY 8, 9

SIMPLE MAINTENANCE HINTS 10
SIMPLE MAINTENANCE HINTS/SPECIFICATIONS 11

SCHEMATIC DIAGRAM 12