Pioneer sx 838 brochure

Page 1

ABBEY-fife?

E-

COsz RMS stereo receiver featuring PLL FM MPX, precision equalizer,
switched-turnover tone control and direct-coupled OCL power amp.

7&3 two stereo 3215
ng ( d deck-1m

Varyitch Jo use any one or any two of
election and source indicalors are pro.

Page 2

SX-B3B

POWER TRANSFORMER AM/FM TUNER SECTION

$00on x 2 ELECTROLYTIC CAPACiTORS HEAT SINK/POWER

TRANSISTORS

-CPOWER AMPLIFIER CIRCUIT

-CTUNER FRONT END

TURNOVER FREQUENCY SELECTORS
(BASS. TREBLE)

RECORDING SELECTOR

EOUALIZER CIRCUIT

PROTECTION CIRCUIT

-O PRE OUT/POWER IN CONNECTION PLUG

SPEAKER TERMINALS (A, B. C)

DOLBV NR ADAPTOR IN/OU'I' TERMINALS 4-CH. MPX-OUT TERMINAL

AM/FM STEREO TUNER SECTION: ~12) LOCAL OSCILLATOR WITH BUFFER CIRCUIT
11] FM FRONT END WITH l-GANG VARIABLE CAPACITOR AND The iocal usciliatm section employs a buffer Circuit Io ensure stable recep-
DUAL-GATE MOS FETs iion of even the weakast FM signais. even when more powerful stations are

broadcasting in adjacent bandwidth positions. This circuit eifeciively sup-

The important FM from end a! "Is Pioneer SX-BSB features the most . i . ,
presses crosn-rnoduiaiion and Signal mlerruption.

advanced Circuitry available today. Low-noise dual-gale MOS FETs are
applied in each HF and mixing stage. Coupled with a 4-gang vanabie (3! FM IF SECTION WITH 6-STAGE LIMITEH AND

capacitor. Ihey offer a sensitiwly ratio \ " \ HIGH-PERFORMANCE W:

or 1.BpV(lHF), image rejectian DI more Twn high-performance le are used in the FM IF section. One is an ad,
than 55:13 and spurious relection oi vaneed LSI (Large scale Integratedwircuiti which Istne equivalent of 203
beiier than 100GB, Figures like these conventional soiidrstaic devices (88 iranaisiors. 18 diodes. no resistors and

are more than Just numbers. of course. 14 capacitors] These ICs lorm a B-stage limiter CirCUiI to contyibuie signifi-
They ensure you ciear FM reception, canily in the stable periormance oi the IF section, Equally significant, 53%
free 01 jamming and irritating cmss- quadrature detector" is used as the units detector circuit. distinguished
modulaiion. by exceiiem linearity and low distortion over a wide frequency range.