Sansui QR 1500 Service Manual

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OPERATING INSTRUCTIONS
& SERVICE MANUAL

4-CHANNEL RECEIVER
SANSUI [IR-1500

SANSUI ELECTRIC CO., LTD.

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Congratulations on joining the thousands of proud, satisfied owners
of quality stereo components from Sansui.

The Sansui QR-lSOO 4-channel receiver incorporates Sansuis
unique QS Synthesizing/Decoding matrix (patents pending) that
produces a multi-dimensional sound field so enthusiastically receiv-
ed by many audio experts as purely revolutionary. An instrument
that literally heralds the new age of 4-channel stereo sound repro-
duction, the QR-lSOO not only converts ordinary 2-channel stereo
discs, tapes and FM broadcasts into immensely richer 4-channel
stereo sound, but, working in the capacity of a decoder, restores
any 2-channel material encoded from four channels to its original
full-fledged 4-channel status. It also incorporates the four all-silicon
amplifiers which enable you to use a 4-channel tape machine to
reproduce discrete 4-channel stereo.

To enjoy dynamic life-like 4~channel stereo sound at its best, you
should be well acquainted not only with the operation of the
various controls of the QR-1500, but with such matters as the
proper positioning of speaker systems. Read carefully the instruc-
tions contained in this booklet, and you will be better prepared to
take full advantage of the advanced performance capabilities of
this new instrument for years to come.

CONTENTS

SWITCHES AND CONTROLS ....................................... 3, 4
CONNECTIONS / OPERATIONS ................................. 5, 6
TAPE DECKS/PLACEMENT OF SPEAKERS ............... 7, 8
SIMPLE MAINTENANCE HINTS .............................. 9, 10
SPECIFICATIONS ......................................................... 11
CHARACTERISTICS / ACCESSORIES ........................... 12

SCHEMATIC DIAGRAM
DISASSEMBLY PROCEDURE .......................
GENERAL TROUBLESHOOTING CHART ..................... 16
PRINTED CIRCUIT BOARDS AND PARTS LIST
....................................... 17, 18, 19, 20, 21, 22, 23, 24
OTHER PARTS AND THEIR POSITIONS ON CHASSIS
.................................................................. 25, 26