Pioneer sx 4 service manual
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Page 1
1. SPECIFICATIONS Amplifier Section Continuous Average Power 0utput is 20 watts* per channel, min., at 8 ohms from 20 Hertz to 20,000 Hertz with no more than 0.04% total harmonic distortion. Total Harmonic Distortion (20 Hertz to 20,000 Hertz, 8 ohms, from AUX/VIDEO) continuous rated power output . . No more than 0.04% 10 watts per channel power output . . No more than 0.04% f ntermodulation Distortion (50 Hertz: 7,000 Hertz = 4 : 1, 8 ohms, from AUX/VIDEO) continuous rated power output . . No more than 0.04% Damping Factor l2O Hertz to 20,000 Hertz, 8 ohms) 50 I n put (Sensitivity/l mpedance) PHONO ....2.5mYlb0kitohms AUX/VIDEO TAPE PLAY 150mV/50 kitohms Phono Overload Level (T.H.D. O.1"/o, 1,000H2) PHONO 130mV Output ( Level/l mpedance) TAPE REC .15OmVl2.2 kitohms Frequency Response PHONO (R IAA Equalization) . . . . 30Hzto 15.000H2t0.5d8 AUX/VIDEO. TAPE PLAY ronr'coniro; " " 10H2 to 50'000H21! uoe BASS. ...t8dB(100H2) TREBLE . .18d8 (tOkHz) '"':::'::::::':lY: ::' *::':l:': :: i?::Jil$Tl, Hum and Noise (lHF, short circuited A network) PHONO 70dB AUX/VIDEO,TAPEPLAY. ....96d8 FM Tuner Section Usable Sensitivity . Mono; 11..2d8f (lHF) (1.OpV,75 ohms) 50dB Ouieting Sensitivity Mono; 16.3dBf (1 .8pV, 75 ohms) Stereo; 37.2dBI (19.9pV, 75 ohms) Signal-to-Noise Ratio Mono; 75dB (at 85dBf ) Stereo;70d8 (at 85dBf) Distortion (at 65dBf) Mono. ...100H2;0.15% 1 kHz; 0.1 5% 6kHz;O.2% Stereo ....100H2;0.3% l kHz; 0.3% 6kHz; O.4o/o CaptureRatio. ....1.0d8 Alternate Channel Selectivity 400kHz; 60dB StereoSeparation ....1kH2;40d8 30Hz to 'l5kHz; 35dB Frequency Response 20Hz to 15kHz +0.5d8, -1dB SpuriousResponseRatio. ...65d8 lmageResponseRatio ......65d8 lFResponseRatio, ..90d8 AM Suppression Ratio . 55dB SubcarrierProductRatio. ...40d8 SCA Rejection ratio . . 60dB Muting Threshold 29.3dBf (8pV) Antenna Input . . 300 ohms balanced, 75 ohms unbalanced AM Tuner Section Sensitivity lHF, ferrite antenna . . 300pV/m lHF, external antenna 15gV Selectivity .27d8 Signal-to-Noise Ratio . 50dB lmageResponseRatio ......40d8 lFResponseRatio. ......73d8 Antenna Built-in ferrite loopstick antenna Miscellaneous Power Requirements AC 120V.60Hz Power Consumption . . .200W (UL) Dimensions . 420(W) x 98(H) x 311(D) mm 16-9/16(W) x 3-718(H) x 12-114(Dl in Weight (without package) 5.2 kg (1 1 lb 7 ozl Furnished Parts FM T-type Antenna 1 DryBatterysuM-3"AA" . ....2 Operatinglnstructions ,......1 *Measured pursuant to the federal Trade Commission's Trade Regulation rule on Power Output Claims for Amplif ier. NOTE: Specifications and design subiect to possibte modification without notice.
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SETTING USE THE AM CHANNEL STEP SWITCH (on the rear panel) Before the receiver leaves the manufacturing plant, this switch is set to the channel allotment olan of the destina- tion. For the U.S.A., it is set to 1OkHz. Check that the switch is set properly before use. Set it to the 9kHz position when the channel allotment plan is changed and the intervals between the AM broad- casting stations change from 1OkHz to 9kHz units. NOTE:Contact your dealer and inquire if you are not sure about the c han nel al I otment pla n. LOADING THE BATTERIES Two size "AA" dry batteries are provided as accessories. They are used to retain the station presetting memory functions. Before using the unit, disconnect the power cord and load the batteries into the compartment on the rear panel as follows: 1. Slide the lid in the direction of the arrow and open the compartment (see Fig. 1). Load the batteries with the polarities properly aligned with the marks on the inside of the compartment (see Fis.2). Align the tab of the lid with the interlocking hole and depress the lid lightly. Battery Precautions: lf batteries are incorrectly used. they may leak or even break open inside the battery holder. Observe the following precautions when inserting and replacing the batteries. 1. Always be sure the + and - ends are aligned properly as shown above and as marked on the battery holder. 2. Do not use new batteries and partly used batteries at the same time. 3. Do not use different brands and types of batteries at the same time. niT-trn ".r.J L'orr. 10kHz position Fig.2 Insert tab into interlocking hole Fis. 3 Fis.4 There are rechargeable dry cell batteries and non- rechargeable dry cell batteries. Always read the notes on the battery to be sure which kind you have. When replacing the batteries, always use the same type of batteries (carbon zinc) as the ones originally provided with the receiver. Do not use alkaline and nickel cad- mium type batteires. 2. 3. 4. 5.