Pioneer sx 737 brochure
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Page 1
plofiéen ' *
High-quality stereo receiver featuring 35 watts' per channel, min. RMS at 8 ohms
from 20 Hertzto20,000 Hertz with no more than 0.5% total harmonic distortion.
Page 2
X-737
PROTECTION RELAY SWITCHIr
POWER TRANSFORMER O-
RECORDING SELECTOR o-(
PROTECTION CIRCUIT
SPEAKER TERMINALS (A. a)
HEAT SINK/POWER TRANSISTORS
-'OPOWER SUPPLY CIRCUIT
AMIFM TUNER SECTION
--TUNER FRONT END
TONE CONTROL CIRCUIT
-4 EQUALIZEN CIRCUIT
LLE-AMIFDII ANTENNA TERMINALS
AM/FM STEREO TUNER SECTION
I1I FM FRONT [ND WITH DUAL-GATE MOS FET AND FREQUENCY
LINEAR lvGANG VARIABLE CAPACITOR
Pmncer has. selected an aovanced.dual~gme MOS FET and a Ivequency-lmear
Aegang vanable capacitor for Ihe vilal FM front end In the SX<737.These conln-
mile to the high IHr sensuivity 011 QIIVIITIBQD rclcclion a! Defler than EMS.
and the suppru5sr0n of any
modulation to assure clear FM
Icceptian. Thanks In Ihe fre-
Quency-llncav ties-9n ot tuning
museum. the 5M dial scale :5
near ldivIdna InIO equal suc-
Iicms) 10! easy and accurate
tuning convenience.
7 IM IF WITH 5>STAGE LIMITER AND HIGH-PERFORMANCE IC
Pioneers oxcluswcly-Gevelopud l-M II (C IS used In llus important FM scu-
non. It is an I SI II. :Irge Scale Inlegialed-mrcuit) -comhumng the functions cIl
no less Khan 703 conventional smile-state dovIccs (55 Iranmslors. 18 divaee.
83 rcsislom and I4 capacztorsl. This IC loving me n-stage limnev Ior Stable
limiter characteris 65 this results In a capture who of1.0dB UHF). high
sugrmI-Io-nosse ratio of FOGB and AM :zuppiessIon of 55dB, Fuvlhcl. a "qua-
drature deteclov Is employed In the detector circuit to Iuduce distoman.
cxlcnd linearity and Improve Vital lonal quality.
I3l PHASE-LINEAR CERAMIC FILTERS
The FM IF soul-on also use: 4 element chase-linear COIamIC III-1:79 to obtain
very high Station selvctivuly. The row phase-dislolliuu attributes ot the filters
IurllIeI improve sound quality, enable the MPX dvmodulator to provade best
slmen sepavahon even In Ihe high-Ithuuncy tango. lHF selectivity is taled
al was. thus [he adiacent stations an: sharply sepnrmed even in areas 0!
multiple stalIon 5Ignals.