Sansui QRX 7500 Panel Information

Page 1

SANSUI QRX-7500 FRONT PANEL INFORMATION

TUNE AND SIGNAL METERS

4-CHANNEL LEVEL METERS
Adiust the LEVEL SET control so that the
pointers or these meters will swing up to.
but not beyond the red numeral 25

TREBLE TONE CONTROLS _
Use to strengthen or weaken the set's
high~end response according to your per~
sonal Dreierence.etc. Turn them clockwise
to emphaSlze the highs.

BASS TONE CONTROLS -
Use in the same manner as the TREBLE
tone controls to boost or cut the sets low-
end response

POWER SWITCH
Push the POWER switch once to turn the
set on. once more to turn it on

HEADPHONE JACKS -
Accommodate two stereo headphone sets
Ior monltorlng or private listening. The
upper jack is tor the Iront channels. and
the lower one ior the rear. When listening
with headphones only. turn the SPEAKERS
switch to 'OFF'.

SPEAKERS SWITCH -_
Selects the speaker systems oi the iront
and rear channels.

OFF: To cut all the sound irom all speak.
er when listening with headphones

A: To drive the iour speaker systems con
nected to the SPEAKER SVSTEM A termi»
nais on the rear panel

a: To drive the ones connected to the
SPEAKER SYSTEME terminals

A+Bz To drive ooth SVSTEMA and srsv
TEM~B pairs.

A CWEI STEREO

FILTER SWITCHES

LOW: Use the LOW FILTER switchies) to
eliminate low lreouencynorse Pushing the
FRONT andor REAR LOW FILTER switches
reduces disturbing iow-ireouency noise
irom the front and/or rear channels, such
as may be produced ov a turntable motor
HIGH: li high Irequency noise disturbes
you. push the mom and,or REAR HIGH
FlLTER switches. Surlace and other kinds
oi high Irequency noise will be reduced

BALANCE CONTROLS -
MAIN: Use to balance the tram and rear
channels. Turning this control counter
clockwrse Irom the center increases the
sound volume Irom the lront speaker sys
tems. while turning it clockwise increases
the sound volume trom the rear speaker
systems.

FRONT: Use to balance the rront Ielt and
right channels. Turning this control count
terclockwise train the center raises the
sound volume Irom the lelt speaker sys
tem. and turning it clockwise increases
Irom the right speaker system

REAR: Use in the same manner as the
FRONT BALANCE control to balance the
rear Ielt and right channels.

FM STEREO |NDICA"OR

VOLUME CONTFOL
Use to control the overall sound volume.
Turn it clockwise torusc.

LOUDNESS SWITCH

Pushing this switch vhen listening at a
low volume level ac ents the lows and
highs properly to relder the reproduced
sound more realistic.

LEVEL SET CONTROL
TUNING CONTROL

FUNCTION CONTROL

Use to select the sound reproduction
made most appropriate for your 2vchannel
or 4-channol program.

2-CH: To hear 2channe| stereo program
sources in stereo, utilizing your two tront
speakers only. Use this position also to
hear AM and FM mono broadcasts, mono
records and tapes.

OS SVNTHESIZER: To convertisynthev
sizei conventional 2channel stereo pro
gram sources to 4-channel stereo sound
Q5 REGULAR MATRIX: To decode and
reproduce Achannel program sources
irecords, tapes and the" broadcastsien»
Coded into a Zchannel irorn with the 05
regular matrix system.

PHASE MATRIX: To decode and re-
produce 4~channel program sources on-
coded with the CBS SQ matrix systemt
CD A DISCRETE: When Wishing to hear
discrete 4-channel tapes or CDrAtQuadra
dlSCl records. It IS necessary to operate
the 4 CH TAPE MONITOR switch or the
SELECTOR switch In addilion to setting
the FUNCTION control to the CD-eDIS»
CRETE position. When reproducing dis.
crete 4-channel CD4 (Quadradiscl records
switch the SELECTOR switch to either the
PHONO-l or PHONO 2 position,

FM MUTING OFF SWITCH

This switch. it not depressed. eliminates
the interstation noise commonly heard
when turning on the FM band. Should be
pushed to release the muting in on a weak
FM station.

TAPE MONITOR SWITCHES

Use to reproduce a recorded tape or to
monitor a recording that you are making
Push the one that governs the record,
playback circuit connecting the particular
tape deck in use at the moment. At all
other times. push it once more to restore
it to the normal positron.

CD-4 CARRIER LEVEI: control
CD-4 SEPARATION LEFT control
CD-4 SEPARATION RIGHT control

This control. used when playing discrete
4-channel CD-4 (Quadrodisc) records. lets
you carry out adiustments to Iacilitate
matching between the built-in CDVA de-
modulator and your turntable. For adjust-
ment procedures. reler to ADJUSTMENTS
FOR PLAYING CD~4 RECORDS on page 14
oi the operating manual

SELECTOR SWITCH

Adjust to the program sources (except
tapei you wish to hear.

PHONO-l. 2: For playing records.

FM AUTO: For receiving FM stereo or
mono broadcasts. In this position. the
sets 05 Synthesizer Decoder be automatic
cally adjusted lor hetter FM reception,
AM: For receiving AM broadcasts.

AUX: To reproduce whatever program
source ls connected to the rear panel 4.
CHANNEL AUX -LOW or -H|GH inputs.
Whenever reproducing a 4rchannel dis-
crete source, be sure to set the FUNCTION
control to CD»4.DISCRETE.