Pioneer sx 303 service manual
This is the 27 pages manual for pioneer sx 303 service manual.
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Extracted text from pioneer sx 303 service manual (Ocr-read)
Page 1
1. SPECIFICATIONS Amplifier Section Continuous Average Power Output is 45 watts* per channel, min., at 8 ohms f rom 40Hertz to 20,000 Hertz with no more than 0.3o/o total harmonic distortion. Total Harmonic Distortion (40 Hertz to 20,fi)0 Hertz, I ohms, from TAPE) continuous rated povrrcr output No more than 0.3% 22.5watts per channel power output . . . . No more than O.15yo I watt per channel power output l*"r..irr"ii""oiri.r,i""it,i""r,rlrt,ill'iJir1"=t;?1, 8 ohms, from AUX) continuous rated power output No more than 0.3% Damping Factor (1 kHz, 8 ohms) 22 I nput (Sensitivity/l mpedance) PHONO .....2.smV/S0kilohms TAPE PLAY . . . 150 mV/50 kilohms Phono Overload Level (T.H.D.0.1%. 1,000H2) PHONO . . 150mV Output Level TAPE REC . 150 mV SPEAKER A, B, A series B, off Frequency Response PHONO (RIAA Equalization) . 30Hz to 20,000H2t0.5d8 TAPE PLAY 15Hz to SO,OOOHz+]OA Tone Control BASS . i9dB (100H2) TREBLE 19dB (10kHz) Loudness Contour (Volum control setat-40d8 position) . . +8dB (100H2), +6dB (10,000H2) Hum and Noise (lHF, short circuited, A network) PHONO MM .. 71dB TAPEPLAY ......97d8 FM Tuner Section** UsableSensitivity.. .10.7d8f(O.9pV) 50dB Ouieting Sensitivity MONO ...15.3dBf (1.6pV) STEREO ..37.6d8f (211ty1 Signal-to-Noise Ratio MONO ...75d8(at85dBf) STEREO . . 70dB (at 85dBf) Distortion (at 65dBf) MONO lkHz. ...0.3Yo STEREO lkHz. ...O.6Yo CaptureRatio . ..2.5d8 Alternate Channel Selectivity (400kHzl . . 50dB Stereo Separation (lkHz) . . 35dB Frequency Response .. 30Hzto lSkHz,1ffOt SpuriousResponseRatio. ......7ft8 lmageResponseRatio ....45d8 lF ResponseRatio. ....100d8 AMSuppressionRatio ...45d8 SubcarrierProductRatio. ......31d8 Muting Threshold 27dBf (6.3pV) Antenna Input . . . 300 ohms balanced, 75 ohms unbalanced AM Tuner Section Sensitivity f HF, Loop antenna 32O1N lm lHF, Ext. antenna 30gV Selectivity . 2ft8 Signal-to-Noise Ratio . . . ..43d8 lmage Response Ratio ....40d8 lF ResponseRatio. .....45d8 Antenna AM Loop Antenna Miscellaneous Power Requirements . AC 120 V, 60Hz Power Consumption . . . 190 Watts(UL), 22S VA(CSA) Dimensions . . . 42O (W) x 98 lHl x 214 (D) mm 16-9/16(W) X 3-718(H) X 8-7116(D) in Weight (without package) . .5 kS (11 tO) Furnished Parts FMT-typeAntenna ......1 AMI-oopAntenna ........1 Operating Instructions 1 'Measured pursuant to the Federal Trade Commission's Trade Regulation rule on Povver Output Claims for Amplifier. **FM muting functions with this unit when the signals are weak. The unit's internal wires are therefore treated so that the signals are not muted when the sensitivity is measured. NOTE: Specifications and design subject to possible modification without notice. 2
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2. FRONT PANEL FACILITIES O powen swrrcH Push this to wrritch on and off the unit's power. Power is supplied at the depressed (r) switch position (ON) and turned off at the released (I) position (OFF). @ HenopHoNE JAcK Connect the plug on the stereo headphones to this jack when listening to sound through headphones. @ rorue coNTRoLs BASS : Thebass is increased whenthiscontrol isrotated clockwise from the center position and reduced when rotated counterclockwise. TREBLE : The treble is increased when this control is rotated clockwise from the center position and reduced when rotated counterclockwise. @ eeLeNcE coNTRoL This is normally kept at its center position. lt is rotated when the volume of sound delivered through the left and right channels of the speakers or headphones differs. The right channel volume is reduced when the control is rotatd toward the LEFT from the center position while the left channel volume is reduced when it is rotated toward the RIGHT. @ rurucrroN swrrcHEs PHONO : Press when listening to records. FM : Press when listening to FM broadcasts. AM : Press when listening to AM broadcasts. @ rape (ADPT) swrrcH This is depressed when using a tape deck or adaptor unit connected to the rear panel TAPE/ADAPTOR jacks. o LouorrrEss swtTcH Depress this svrritch to the ON position when listening to sound at a low level of volume. This will enhance the bass and treble and give more life to the sound even at a low volume. @ voluruE coNTRoL Use this to adjust the volume of the sound delivered through the speakers or headphones. The volume is increased when this control is rotated clockwise from the minimum "0" position. @ ruruIruG tNDIcAToR (TUNING) This lights up to indicate that an FM, AM station has been tuned in. @ sreneo rNDrcAToR (srEREo) This lights up automatically when an FM station broad- casting in stereo has been tuned in. @ speerERs swrrcHEs These are used to select the speakers through which you will listen to the sound. The selected speakers are now working. A: The sound is heard from the speakers connected to the speaker A terminals on the rear panel. B: The sound is heard from the speakers connected to the speaker B terminals on the rear panel. No sound will be heard when SPEAKERS A and B switches are both released. This is the position at which the sound can be heard through the headphones. NOTE:No rcund will be heard through the spakers when both the A and B switches are depressed if only one set of speakers has been connected to either the A or I SPEAKE RS terminals. @ FREoUENcY scALE This indicates the frequency of the broadcasting station (FM, AM). The top level figures (88 - 108) indicate the FM band. The bottom level figures (55 - 160) indicate the AM band. @ TUNTNG KNoB Rotate this knob to pick up stations (FM, AM). @ POWER |ND|CATOR