索尼XR-4900维修手册含电器原理图

XR-4900SERVICE MANUALEModelModel Name Using Similar MechanismXR-C5100Tape Transport Mechanism TypeMG-25F.136SPECIFICATIONSCassette player sectionMW4-track 2-channel stercoTuning rangeMW tuning interval.08%(WRMS)9 kHz/10 kHz switchable531-1602kH2Frequency response30-18,000HzSignal-to-noise ratio58 dB(at10 kHiz step】Tuner sectionSWFMTuning rangeSW tuning intervalTuning rangeFM tuning intervabSW1:2.940-7.735kHz50 kHz/200 kHzSw29500-18,135kHzswitchable(except for 10,140-11,575875-108.0MHzkHz)(at 50 kHz step)Aerial terminal875-107.9MHzintermediate frequency10.7 MHz/450 kHz(at 200 kHz step)Sensitivity30 uVAerial terminalntermediate frequencyUsable sensitivity9dBtPower amplifier sectionSelectivity75 dB at 400 kHzOutputsSpeaker outputsSignal-to-noise ratio65 dB(stereo)sure seai connectors)68dB(mono】Speaker impedance4-8 onmsHarmonic distortion at 1 kHzMaximum power output 40 Wx 4 (at 4 ohms).7%(stereo)0.4%(mon}Separation35 dB at 1 kHzFrequency response30-15,000HzContinued on next page-FM/MW/SW CASSETTE CAR STEREO甲MICROFILMSONY