Pioneer sx 3900 service manual
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Extracted text from pioneer sx 3900 service manual (Ocr-read)
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MODEL SX.3gOO COMES IN TWO VERSIONS DISTINGUISHED AS FOLLOWS: Type Voltage Remarks KU 120V only U.S.A. model 5/U I 10V, 120V, 22O and 240V (Switchable) U.S. Military model This service manual is applicable to the KU type. When repairing the S/G type, please see the additional service manual (see pages 47 -56l.. CONTENTS 1. SPECIFICATIONS 1. spECtFtcATtoNS 2 Power Amplifier Section 2' FRoNr PANEL FACILTTIES a Continuous Power 0utput 0f 120 wattsxper chan- 3' BLocK DIAGRAM 7 nel, min., at 8ohms from 20Hertz to 20,000 4. clRCUlr DESCRIPTIoNS Hertz with n0 m.re than 0.005% tolal harmo- 4.1 FM Tuner Section 8 niC diStOftiOn. 4.2 AM Tuner Section 9 To,rl Harmonic Distortion (20 Hertz to 20,000 Hertz, 4.3 Audio Section 9 g ohms) 4.4 DisplayCircuits ....... 11 continuousratedpoweroutput.. Nomorethan0.005% 4.5 Protection Circuit 13 60 watts per channel power 4'6 Surge current suppressor " " " ' l5 ,",1r',jlltr,r.ion oirioriion iuo rrrrrltrl;f ;::ltjT:"fl 1E 5' DISASSEMBLY ' ' 15 continuous rated power output . . No more than 0.005% 6. PARTS LOCATION 16 60 watts per channel power 7. DIAL CORD STRINGING . 18 output ' . . . ' No more than 0.005% g. ADJUSTMENTS Frequency Response 8.1 Audio Section 1e rnpr.s.nriiiui,vli,.np.oun..t,i;ff T iorTln?,t'.2 *! aa 8.2 Tuner Section. 20 . . . . . 'l V/50 kilohms 9, SCHEMATIC DIAGRAM 24 OUtPUt 10. p.c. BoARDS coNNECTToN DTAGRAM 29 -speaker ' ' ' ' ' A' B' A+B Damping Factor (20 Hertz to 20,000 Hertz, 8 ohms) I1.PARTSLIST. 35 ...60 12. EXpLoDED vtEW 41 Hr..;; rtr.ir. iiHi, rrrortcircuiteo, A network) 13. PACK|NG.... 46 ""' 115d8 ADDTTTONAL SERVTCE MANUAL FOR S/G TYPE 41 Preamplifier Section I nput (Sensitivity/lmpedance) PHONO 1,2. . . 2.5mV/50 kilohms AUX, TAPE PLAY 1, 2, ADAPTORIN ... ... 150mV/50kilohms Phono Overload Level (T.H.D. 0.005%, 1,000 Hertz) PHONO 1.2... 300mV OutPut ( Level/l mPedance) TAPE REC 1, 2. ADAPTOR OUT 150mV PREAMP OUT (RL: 50 kilohms) . . . . 1Vl1 kilohms (Volume: max.) Total Harmonic Distortion (20 Hertz to 20.000 Hertz) PHONO 1.2 (REC OUT) . . . . . . No more than 0.005% (10V output)
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sx-3900 AUX, TAPE PLAY 1, 2. ADAPTOR IN No more than 0.005% (10V output) Frequency Response PHONO (R IAA Equalization) . . . 20 Hertz to 20,000 Hertz t0.2dB AUX, TAPE PLAY 1,2, ADAPTOR OUT Ton. contror ' ' ' ' ' 7 Hertz to 80 000 Hertz +9 dB BASS . !4dB/!7dB (100H2) f u rnover F requency : 2OOHz/ 400H2 TREBLE +gdB/t7dB (10kHz) Tu rnover Frequencv : 2kHz I 4k{z Filter LOW. . 15Hz (-6dB/oct.) HIGH . 8kHz (-6dB/oct.) Loudness Contour (Volume control set at -40dB position) . . . . +6dB (100H2), +3dB (10 000H2) Hum and Noise (lH F, short-circuited, A network) PHONO . .. . .. 86dB AUX,TAPE PLAY 1,2, AM Tuner Section Sensitivity (lH F, Ferrite antenna) . . (lHF, Ext. antenna) " . Selectivity Signal-to-Noise Ratio lmage Response Ratio lF Response Ratio. . Antenna Audio Section Output ( Level/l mpedance) FM (100% Mod.). AM (30% Mod.) . Semiconductors lCs... FETs. Tra nsistors Diodes M iscellaneous Power Requirements Power Consumption Dimensions Weight (without package) Furnished Parts Operating instructions FM T-type antenna 300sV/m 1 SpV 30dB 50d B 40dB 40dB Ferrite loopstick a ntenna ADAPTORIN... Attenuator. FM Tuner Section Usable Sensitivity (lH F ) 50dB Ouieting Sensitivity MONO STEREO Signal-to-Noise Ratio MONO STE R EO Distortion (at 65dBf ) MONO 100H2. lkHz . 6kHz ' STEREO 100H2. ikHz . 1 05dB-20d8 9.8dBf (1.7pV) 14.2dBf (2.8pV) 36dBf (34.7pV) 83dB (at 65dBf) 78dB (at 80dBf) 0.1o/o o.o7% oJ% O.27o o.15% O.2To 650mV/2.4 kilohms 20OmV /2.4 kilohms t5 o 89 62 AC 120V.60H2 350W (UL) 526(W) x 176(H) x 452(D) mm 20-11/16(wl x6-1 5/16 (H) x 17-14/16(Dl in 2Okg (441b 2ozl 1 1 * Measured pursuant to the Federal Trade Commission's Trade Regulation rule on Power Output Claims for Amplifiers. NOTE: Specifications and the design subject to possible modifications without notice due to improvements. 6kHz Capture Ratio. . 1.0d8 Alternate Channel Selectivity 400kHz ......80dB Stereo Separation 1kHz. ......50d8 3OHzto15kllz. ...... 35dB Frequency Response ....2OHzto15kHz1!jaa Spurious Response Ratio . . . . . . . 100dB lmageResponseRatio ... 90dB lFResponseRatio.. .... 100d8 AMSuppressionRatio ... 60dB SubcarrierProduct Ratio . . . . . . . 64dB SCARejectionRatio .... 64dB Muting Threshold 19.2dBf (SgV) Antenna Input . 300 ohms balanced, 75 ohms unbalanced.