Pioneer SX-9000 service manual E a K E R S, Tone Color, Tape Monitor, Selector

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PIONEER

S P E A K E R S

These switches turn the various speaker systems on and off. Push each button once to turn it on, once again for off. Pushing the A button will cause the sound to be reproduced from the speakers connected to the SPEAKER A terminals. The B and C buttons control their correspondingterminals on the rear of the unit.

NOTE:

Only

two speakersystems can be used at the same time (i . e ..

 

A+8,

B+C, or A+C) . lf all three speakerbuttons are pushedat

 

the same time, no sound will be reproduced .

If you wish to shut off all speaker sound, simply press the OFF button.

TONE COLOR

This switch is for selecting the particular tone to suit your mood or the music being heard.

VIVID: Emphasizes highs and lows for more sound clarity

BASS: Emphasizesbasstones.

FLAT: Flat, untempered tone.

SOFT: High tones relatively softened.

TAPE MONITOR

Depress this button to monitor a recording; press it again and it shuts off. During record or tape play, or when listening to a broadcast, leave this switch off.

Turning it on automatically switches off the speakers. This button is intended to aid in checking recording or editing conditions.

There are two TAPE MONITOR jacks, A and B, on the rear (A) and front (B) of this unit, and thesetwo buttons correspond to them. Button A directs the signal through jack A, and button B throughjack B.

SELECTOR

This switch is for choosing the program source.

AM:For receivingAM broadcasts.

FM MONO/WIRELESS: For FM monophonic broad- casts, or for broadcasting the signal from a wireless FM microphone.

FM AUTO: For automatic switchover between FM mono and stereo broadcasts.

PHONO 1: For playing records on a turntable con- nected to the PHONO 1 terminals.

PHONO 2: Same as above, for PHONO 2 terminals.

AUX 1: For playing signals fed to the AUX 1 terminals.

AUX 2: Same as above. for AUX 2 terminals.

MICJACKA, B

Plug a microphoneusedinto one of thesejacks.Two microphonescanbe usedat the sametime.

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Contents RJIONEEIiI G H P E R F O R M a N C ET U N E R FeaturesO L P R O O FM I C R O P H O N EU S E Specialoverload ProtectionLinevoltageselectionand Fuse InstallationStereosystem WordaboutroomacousticsAntenna Groundconnections SpeakhrsystemconnectionsFM Antenna AM AntennaMicrophoneconnection ConnectiondiagramTurnt LotTape Deckrecorder Connection NtableconnectionFrontpanelfacilities IndicatorLancecontrol Color Reverberation Cator IndicatorDE Siiiitch C L E V E L C O N T R O L STone Color E a K E R STape Monitor SelectorReceptionof FM Receptionof AMListeningto Records Usingmicrophones Usingtape Decks Tape Recorders9 0 0 Sx-g000 YOU can AlsoU m i s m i x e d i n t h e Program A t i c l i g h t n i n gN t i n u o u so r i n t e r m i t t e n N e d i n 1 0 k H zb e a t i n t e r f e r e n c eSpecifications T U N E R S E C T I O N S C E L L a N E O U S Power RequirementsS c o n n e c t S i t i o no f S w i t c h S E L E C T O R+ o o H Lqu,pment TlpsLiLt 4 o o k H zParts Lavout Dial Cord Stringing6 * 1 2 0 2 8 o u OO Q o o O a , , c , uO aS E. .uor.i .F o Printedcircuitboards Tjioneer Rol Fql SB.t Ii#330*.-tFV\fr-f # l?t r l Sr6qF0UTt E INr Er Ffi*,,,*$*\I T C H E S PartslistPteiitimeters ResistrsI F U N I T Capacitrs SEMtc0ttIucT0RsS I S T O R S SimicnductrsXU N r T Wl 3 -0 2 CILSA1DTRAISFRMERDIDTSA1DTRAISISTllRS FcurrRESISTtRS St Mtc0ilDUcT0RsHEADAMPUlllT W2l CAPACITlRS CtILSANITRAISFRMtRSMsl w t T cuHN r T w 2 6 0 0 SwitchRtsistrs TraisistrsTraiisistrs I IAI M PU N I T W 1 5 0 5 CAPACITtRSPTElTIMTTERS V E Rabm PU N I T W 2 B t 0 2 CAPACITlRS M I C t l I D U C T l R STzsv CsunriuiisvIides I n t e d i n J a p a n 12 0 6 6Il o o@ OoXooWzA-OO2 TrIay-t/znWt6- o28 RroarOttWMuting Unit w t 8 o 2 K I L o 2@e our E Lv, lOi-----r-t +t2v ? 3 40ma OO r L M 7 O 3 L 3 o LflN4ur @ t w25C3A2 Vco25C460 NIlljj2sEeis-A @rxO l Headampunit O o2SC87lor 2SC458LG RzlK cJ8 O O l Oemiswitchunit w 2 6 O O z6 O O l T0/25 80.0033Qs 25C734P Cr33/s Q2 O3 Qa as Reverbamptjnit w 2 8 O O\z &87O 6 O OSP out a Q4 2SC485 OB2SA4A5 0nControlampunit RrlOK Cs0,4sR2ol0l

SX-9000 specifications

The Pioneer SX-9000 is a vintage receiver that was first introduced in the early 1970s, showcasing the high-fidelity audio technology that Pioneer was known for during that era. As a part of the SX-series receivers, the SX-9000 stood out for its impressive features, robust design, and high-quality sound reproduction, making it a coveted piece of audio equipment among audiophiles and collectors alike.

One of the key features of the SX-9000 is its powerful amplification capability. With a power output of 80 watts per channel at 8 ohms, it is capable of driving a wide range of speakers effectively, providing dynamic and clear sound at various volume levels. The receiver utilizes a transistor-based design, ensuring reliability and efficiency in sound delivery.

The SX-9000 also supports a range of tuning options, including FM stereo and AM bands, with an integrated multiplex decoder for enhanced stereo separation. Its switched capacitor AM/FM tuner is designed to provide precise frequency captures, minimizing distortion and improving overall sound quality. Additionally, the receiver features a glass front panel and analog tuning dial, reflecting the classic design aesthetics of the time.

Another notable characteristic is its extensive input options. The SX-9000 has multiple inputs, including auxiliary, phono, and tape, allowing users to connect a variety of audio sources such as turntables, cassette decks, and other components. The inclusion of a phono stage preamp makes it an excellent choice for vinyl enthusiasts, offering high-quality playback of records with minimal noise.

Equipped with tone control features, the SX-9000 allows users to adjust bass and treble to their liking, giving them greater control over their listening experience. The loudness function is another valuable addition, enhancing playback at lower volume levels, ensuring that sound remains rich and full.

Overall, the Pioneer SX-9000 is a testament to the company's commitment to producing high-quality audio equipment. Its blend of power, versatility, and classic design make it a lasting favorite for vintage audio lovers, maintaining a strong reputation decades after its release. The SX-9000 embodies the spirit of audio fidelity, making it a vital piece in the legacy of Pioneer receivers. Its features and capabilities continue to resonate with today's audiophiles, underlining its timeless appeal.
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