XR-C7220_XR-C7300_XR-C7300W维修手册

XR-C7220/C7300/C7300WSERVICE MANUALUS ModelCanadian ModelXR-C7220EModelXR-C7300/C7300WFor RM-X4S (Remote Commander).please refer to RM-X4S Service Manual(9-925-698-00)previously issued.Photo:XR-C7300Dolby noise reduction manufactured under licenseModel Name Using Similar MechanismXR-C5100from Dolby Laboratories Licensing Corporation.'DOLBY and the double-D symbol DOare trademarksTape Transport Mechanism TypeMG-25G-136of Dolby Laboratories Licensing Corporation.SPECIFICATIONSAUDIO POWER SPECIFICATIONS(US model)POWER OUTPUT AND TOTAL HARMONIC DISTORTION17 watts per channel minimum continuous average power into4 ohms,4 channels driven from 20 Hz to 20 kHz with no morethan 1 total harmonic distortion.Cassette player sectionAM (XR-C7220)530-1,710kHzWuter4-track 2-channel stereoTuning range0.08 (WRMS)MW(XR-C7300/C7300W0Frequency response30-18000HzSignal-to-noise ratioTuning rangeMW tuning interval:9 kHz/10 kHz switchableCassetteDolby531-1,602kHztypeNR off(at 9 kHz step)TYPE II,IV67 dB61 dB530-1710kH264 dB58 dB(at 10 kHz step)TYPEI5W(XR-Cc7300/C7300WMTuner sectionTuning rangeSW tuning interval:SW1:2.940-7735kHzFMSW2:9500-18.135kHz(except ofr10,140-11,575Tuning rangekHz)XR-C7220:87.5-107.9MHzAerial terminalExternal aerial cotXR-C7300C7300WFM tuning interval:Intermediate frequency10.7 MHz/450 kHz50 kHz/200 kHzSensitivity30μVswitchable875-108.0MHz(at 50 kHz step)Continued on next page-87.5-1079MHz(at 200 kHz step)Aerial terminalExteral aerial connectorIntermediate frequency10.7M1HzUsable sensitivity9 dBtSelectivity75 dB at 400 kHzSignal-to-noise ratio65 dB(stereo).68 dB(mono)FM/AM (MW/SW)Harmonic distortion at 1 kHz0.7 %(stereo)0.4'%(mono)CASSETTE CAR STEREOSeparation35 dB at 1 kHzFrequency response30-15.000HzMICROFILMSONY