索尼XR-1790维修手册含电器原理图

XR-1790SERVICE MANUALUS ModelCanadian ModelEModelModel Name Using Similar MechanismNEWTape Transport Mechanism TypeMG-36SZ9-32SPECIFICATIONSAUDIO POWER SPECIFICATIONS (US model)POWER OUTPUT AND TOTAL HARMONIC DISTORTION13 watts per channel minimum continuous average power into4 ohms,4 channels driven from 20 Hz to 20 kHz with no more than1%total harmonic distortion.Cassette player sectionAM4-track 2-channel stereoTuning rangeUS and Canadian models:0.13%(WRMS)530-1,710kHzFrequency response30-15,000HzE model:Signal-to-noise ratio55 dBAM tuning interval:9 kHz/10 kHz switchableTuner section531-1,602kH(at 9 kHz step)FM530-1.710kHzTuning rangeUS and Canadian models:(at10 kHz step】87.5-107.9MHzAntenna terminalExternal antenna connectorE model:Intermediate frequency450 kHzFM tuning interval:Sensitivity30μV50 kHz/200 kHzswitchable675-108.0MHzPower amplifier section(at50 kHz step】87.5-107.9MHzOutputsSpeaker outputs(at 200 kHz step)(sure seal connectors)4-6ohmsAntenna terminalExternal antenna connectorIntermediate frequency10.7 MHz35w×4(at4 ohms)Usable sensitivity9 dBfSelectivity75 dB at 400 kHzSignal-to-noise ratio65 dB(stereo).Continued on next page-68 dB (mono)Harmonic distortion at 1 kHz0.7%(s.crcol0.4%(mono)yepone35 dB at 1 kHz30-15000HzFM/AM CASSETTE CAR STEREO■MICROFILMSONY