Pioneer SX-9000 Linevoltageselectionand Fuse, Stereosystem, Installation, Wordaboutroomacoustics

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TJTONEER

LINEVOLTAGESELECTIONAND FUSE

S W I T C H I N GL I N E V O L T A G E S E T T I N GA N D F U S E

To remove the fuse, turn the fuse cap located on the line voltage selector switch in the direction indicated by the arrow. Then remove the fuse plug from the unit. Put the fuse plug back so that the proper line voltage marking can be seen through the cut on the edge of the plug. Whenever the position of the selector switch is changed, check the rating of the fuse. A 1.5-amperefuse is to be usedforeither 22OY or 240V operation and a S-amperefuse for 110V, 120V or 130V operation.If the rating of the fuseis correct, replacecap.

F U S ER E P L A C E M E N T

If the fuse blows, remove the fuse cap and replace the fuse with a new one.

FUSECAP

Fig. 1

Take off the fuse cap by turning it with a coin, etc . an the direction indicatedby the arrow mark .

STEREOSYSTEM

The SX-9000 is general-purposestereo amplifier. Connect it to the speaker systems (two to six), turntable, tape recorder, etc., which are separatelyavailable.

INSTALLATION

When installing your stereo system, check the following points.

oThe place should be well-ventilated, and free from dampnessand dust.

o The units should not be exposed to direct sunlight.

oThe units should not be placed near radiators or other heating units.

oThe place should be substantial and roomy enough for the installation, when installing the unit on a shelf.

A SPEAKER SYSTEM

B SPEAKER SYSTEM

C SPEAKER SYSTEM

Fig. 2

A WORDABOUTROOMACOUSTICS

The quality of reproduced sound varies according to the size and shape of the room, the materials of walls, floor and ceiling and the amount and arrangement of fumiture.

Too harsh or "bright" a sound usually results from too many hard reflecting surfaces, and/or too low a ceiling. This condition is improved by having ample carpet area or covering the wall (especially that facing the speakers)with a thick curtain.

On the other hand, too many absorbing surfaceswill tend to "soak up" the sound, resulting in a certain "deadness".

Furniture may be rearrangedto provide irregular reflection of the sound. In any event, the true stereo effect is lost if the two speaker systems are placed too far apart. This may be corrected by angling them slightly toward each other or reducing the distance between them.

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Contents RJIONEEIiI Specialoverload Protection FeaturesG H P E R F O R M a N C ET U N E R O L P R O O FM I C R O P H O N EU S EWordaboutroomacoustics InstallationLinevoltageselectionand Fuse StereosystemAM Antenna SpeakhrsystemconnectionsAntenna Groundconnections FM AntennaLot ConnectiondiagramMicrophoneconnection TurntTape Deckrecorder Connection NtableconnectionFrontpanelfacilities IndicatorC L E V E L C O N T R O L S Color Reverberation Cator IndicatorLancecontrol DE SiiiitchSelector E a K E R STone Color Tape MonitorReceptionof FM Receptionof AMListeningto Records Usingmicrophones Usingtape Decks Tape Recorders9 0 0 Sx-g000 YOU can AlsoN e d i n 1 0 k H zb e a t i n t e r f e r e n c e A t i c l i g h t n i n gU m i s m i x e d i n t h e Program N t i n u o u so r i n t e r m i t t e nSpecifications 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 4 o o k H z TlpsLqu,pment LiLtParts 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 Sr6qF Ii#SB.t 330*.-tFV\fr-f # l?t r l0UTt E INr Er Ffi*,,,*$*\Resistrs PartslistI T C H E S PteiitimetersI F U N I T Simicnductrs SEMtc0ttIucT0RsCapacitrs S I S T O R SFcurr CILSA1DTRAISFRMERXU N r T Wl 3 -0 2 DIDTSA1DTRAISISTllRSCtILSANITRAISFRMtRS St Mtc0ilDUcT0RsRESISTtRS HEADAMPUlllT W2l CAPACITlRSTraisistrs SwitchMsl w t T cuHN r T w 2 6 0 0 RtsistrsTraiisistrs I IAI M PU N I T W 1 5 0 5 CAPACITtRSPTElTIMTTERS Csunriuiisv M I C t l I D U C T l R SV E Rabm PU N I T W 2 B t 0 2 CAPACITlRS TzsvIides I n t e d i n J a p a n 12 0 6 6TrIay-t/zn OoXooIl o o@ WzA-OO2Wt6- 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 @ t w Lfl3 o N4urNIlljj2s Vco25C3A2 25C460Eeis-A @rxO l RzlK cJ O oHeadampunit 2SC87lor 2SC458LGT0/25 80.0033 Oemiswitchunit w 2 6 O O z8 O O l 6 O O lQs 25C734P Cr33/s Q2 O3 Qa as Reverbamptjnit w 2 8 O OQ4 2SC485 OB2SA4A5 0n 6 O O\z &87O SP out aControlampunit 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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