Pioneer qx 949 owners manual

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4-CHANNEL STEREO RECEIVER

I 'GX-949A

[OPERATING INSTRUCTlONS KCU

777(7, ,,, 7 7

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W A WARNING: T0 PREVEET FIRE CIR-SHOCK HAZARD;
DO NOT EXPOSE THIS APPLIANCE TO RAIN 0R

' QQ PIONEEIT MOISTURE

I
I

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Pioneer is sincerely grateful that you have seiccted the
QX-949A 4Achannet Stereo Receiver, Widettexibility has
been designed into this receiver to allow the enjoyment of
two and four channel sound in its many varieties. It is
compatible with all currently available program sources,
including discrete tape and CD4 discs, RM and SQ matrix
records and broadcasts, plus conventional two channel
media

in order to realize the full performance and potentials of
this integrated receiver, we recommend that vou read
[his Operating instructions thoroughly before attempting to
operate it

lNSTALLATION

Before connecting the QX~949A to speakers and

other components, determine its location in the

listening room. Please note that locations such as

the following could lead to deterioration of per-

formance or possible damage.

0 Direct sunlight, near radiators or other heat
SOUICQS

C Places with poor ventilation, high humidity or
dust.

I Locations which are not level, unstable or
subject to vibration

Do not use or keep volatile materials such as

insect sprays near equipment. Prepare a shelf or a

stand durable enough to support the QX-949A.

Due to the 45kHz frequency response required for
CD-4 reproduction, do not install the receiver near
equipment which may emit interference, such as
TV sets, etc.

ABOUT PROTECTION CIRCUIT

When the power of the QX~949A is turned on,
there is an approximately 8 seconds wait before
sound can be heard from the speakers. This is to
prevent surge currents from possthly damaging
transistors or speakers. If sound is not heard after
3 to 6 seconds, turn off the power and inspect
speaker connections.

During playing, if sounds stop or a continuous
relay switching sound develops, possible speaker
shorting is indicated. Turn off the power and
inspect speaker connections, wiring mid speaker
impedance.

The protection circuit is selflresetting. After the
problem is rectified, normal playing can be re-
sumed.

CONTENTS

installation ,,,,,,,,,,,,,,,,,,,,,, 2
QX~949A Features ...... . ......... 3
4-channel System Composition ....... 4
Speaker System Installation ......... 5
Speaker Connection ...... : ........ 6
Antenna and Ground Connections . . . 7
Iurntable Connection .............. 8
AUX Input Terminals .............. 8
About ZCH Power Boosting Switch . . . . 8
Tape Deck Connection ............. 9
Connection Diagram ...... , l , l l l 10
Front Panel Facilities .............. 12
Before Playing .................... 14
FM and AM Broadcasts ............. 15
Playing CD-4 Records .............. 16

Playing Zachannel and Matrix Records . . 17

Tape Deck Operation .............. 18
Employing DQLBY'NR ADAPTOR
Terminals ........................ 19
Using the AUX Terminals ..... l l . l 20
401-1 MPX Output Terminal .......... 20
Conditions Frequently Mistaken

for Malfunction ................... 21
CD-4 Technical Outline ............. 22
Matrix 4~channel Records ........... 23
Specifications .................... 24

*Fhe word Dolby 1s a trademark of Dolby
Laboratories Inc.