Pioneer SA 7500 Owners Manual

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INTEGRATED STEREO AMPLIFIER

SA-7500

OPERATING INSTRUCTIONS CKU

WARNING: TO PREVENT FIRE 0R SHOCK HAZARD,

DO NOT EXPOSE THIS APPLIANCE T0 RAIN 0R
GDPIONEER Mousmna.

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Features ........................... 2
Stereo System Set-up ................. 3
Connection Diagram .................. 4
Connections ........................ 6
Front Panel Facilities ................. 8
Before Operation ..................... 10

CONTENTS

Operation .......................... 10
Employing Tape Deck ................. 12
Employing PRE OUT & POWER IN Jacks . . 13
Specifications ....................... 14

Conditions Frequently Mistaken for
Malfunction ....................... 15

FEATURES

Power Amplifier

The SA-7500 employs high reliability NPN & PNP silicon
power transistors. Together with the differential first stage,
all stages are direct coupled in a pure complementary OCL
circuit configuration. Careful circuit design and selection of
components results in a wide output bandwidth.

Precision Tone Control Functions

Conventional BASS and TREBLE controls are each pro-
vided with TURN OVER switches for selecting the fre-
quencies at which the controls take effect. A convenient
TONE switch is also included which permits a flat fre-
quency response to be obtained regardless of the tone
control settings. This greatly simplifies composing or check-
ing the sound according to cartridge, speakers and room
characteristics.

Close RIAA Equalization

RIAA deviation, which governs record playback fidelity,
is reduced to very close tolerance by stringently selected
equalizer elements. A dual DC power supply system is also
employed to provide increased acceptable input volume,
resulting in expanded dynamic range and faithful record
performance at low distortion.

Protection Circuit

Electronic circuitry and a relay are combined in a fast
action protection circuit which guards transistors and
speakers from damage in the event of defective connec»
tions, such as speaker terminal shorting. When DC current
appears in the output, the output circuit is instantly
opened. The protection circuit also performs a muting
function when the power switch is operated.

Program Sources which can be Enioyed

Stereo input jacks are provided on the rear panel for two .

turntables, two tape decks, a tuner, an auxiliary program
source plus a microphone, allowing for great flexibility in
operation.

Easy Tape Duplication

By connecting two tape decks, the desired programs only
can be edited from a recorded tape. The convenient DUPLI-
CATE switch also allows duplication from open reel to
cassette tape formats.

Elegant Styling Complements Performance

The front panel of this new Pioneer stereo amplifier has
been designed to combine ease of operation with handsome
appearance.

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