sonyst-3950sm维修电器原理图

ST-3950AEP ModelUK ModelSONYFM STEREO/FM-AM TUNERSPECIFICATIONSGENERALHarmonic Distortion:at 100 Hz,1 kHzOutputs:FIXED:750mV.10k20.15%(MONOVARIABLE:0-1.5V.1.5k20.25%(STERE0)FM DISCRI:150 mV,2.5 knat 10 kHzPower Requirements:110,127.2200r240Vac0.2%M0NO)selectable,50/60 Hz0.6%(STEREO)Power Consumption:29 W (UK model)Stereo Separation:35 dB at 100 Hz27 W (AEP model)40 dB at 1 kHzDimensions:Approx.460w)×170h】×335(d)mm35 dB at 10 kHz18(w)x 6%(h)x 13 (d)inchesFrequency Response:40Hz-12.5k±88c0including projecting parts and controls19 kHz,38 kHz Suppression:60 dBWeight:Approx.8.0 kg.17 Ib 10 oz (net)Muting Level:Approx.5 uV9.8kg.21b90zAM SECTION(in shipping carton)530-1.605kHzFM SECTIONTuning Range:Antenna:Buitl-in ferrite-rod antenna andTuning Range:87.5-108MHzexternal antenna terminalAntenna Terminals:300 balancedIntermediate Frequency:468 kHz75 n coaxial cable inputUsable Sensitivity:250 uV/m built-in antennaIntermediate Frequency:10.7MHz100 uV external antennaUsable Sensitivity:1.7 uV (MONO),IHFat 1,000 kHz1.5 uV,S/N 26 dB (40 kHz deviation)40 dB at 1,000 kHzSensitivity at 50 dB Quieting:3.0 uV (MONO)Image Rejection:40 HV (STEREO)S/N Ratio:50 dB at 50 mV/mHarmonic Distortion:0.5%at50mV/m,400HzSensitivity at 46 dB QuietingIF Rejection:35 dB at 1,000 kHz(40 kHz deviation):40 uV (STEREO)Image Rejection:80 dBIF Rejection:100dBSpurious Rejection:90 dBAM Suppression:56 dBCapture Ratio:1.0dBSONYSelectivity:80 dBS/N Ratio:75 dB (MONO)SERVICE MANUAL70 dB (STEREO】