Sony-TC-K470-tape-sm维修操作说明书手册

RadioFans.CNTC-K470/RX470SERVICE MANUALUS ModelCanadian ModelTC-RX470AEP ModelUK ModelGermany ModelTC-K470Dolby noise reduction and HX Pro headroom extension manufacturedunder license from Dolby Laboratories Licensing Corporation.HX ProPhoto:TC-RX470originated by Bang Olufsen."DOLBY",the double-D symbol Do and "HX PRO"are trademarks ofDolby Laboratories Licensing Corporation.SPECIFICATIONSRecording system4-track 2-channel stereoModel Name Using Similar MechanismTC-WR870Fast-winding timeApprox.90 sec.(with Sony C-60cassette)TC-RX470:BiasAC biasTape Transport Mechanism TypeTCM-200R7HeadsTC-K470Erasing head x 1 (ferrite head)TCM-200V6Playback/Recording head X 1(SD head)TC-K470MotorsCapstan motor x 1 (DC servo motor)Reel motor x 1 (DC motor)Type IV cassette30-18,000Hz(±3dB.IEC)(Sony METAL-S)ASIST(mechanical drive)motor X 130-15.000Hz[O VU (-4dB)recording](DC motorType ll cassette30-17,000Hz(±3dB.EC)(Sony UX-S)Signal-to-noise ratio (NAB (TC-RX470),at peak level)TC-RX470Type I cassette30-15,000Hz(±3dB.EC)(Sony HF-S)Dolby NR switchOFFB-typeC-typeWow and flutter±0.09%W.Peak (IEC)CassetteONON0.06%WRMS (NAB)Type IV (Sony METAL-SLT)58 dB66dB73 dB±0.16%W,Peak(DlN)Type ll (Sony UX-S)57 dB65dB72 dBInputsType I(Sony HF.S)55 dB 63 dB70 dBLine inputsSensitivity77.5mV(phono jacks】Input impedance47 kohmsTC-K470Microphone inputsSensitivity (For a0.25mVDolby NR switch(phone jacks)low-impedanceOFFB-typeC-typeTC-RX470microphone)CassetteONONOutputsType IV (Sony METAL-S)59 dB67 dB74 dBType ll (Sony UX-S)58 dBRated output0.32 V at a load66 dB73 dBLine outputs(phono jacks)levelimpedance of 47 kType I(Sony HF-S)56 dB 64 dB 71 dBohmsTotal harmonic distortionLoad impedanceOver 10 k ohms1.0%(with Sony METAL-SLT cassette)HeadphonesOutput level0.3mwFrequency responce(DOLBY NR OFF)(stereo phone(TC-RX470)orack)0-1.25mWTC-RX470(TC-K470)at aType IV cassette30-16,000Hz(±3dB)load impedance of(Sony METAL-SLT)30-14.000Hz32 ohms[O VU (-4dB)recording]Type ll cassette30=15.000Hz(±3dB)(Sony UX-S)Continued on next pageType I cassette30-14.000Hz(±3dB)(Somy HF-S)STEREO CASSETTE DECKSONY