Sony_CRF-V21_维修维护电器原理图手册

CRF-V21SERVICE MANUALUS ModelAEP ModelUK ModelEModel包可包回Refer to BCA-70 Service Manual issued previously forinformation of battery charger supplied with this set.SPECIFICATIONSRadio sectionCurcuit systemLW/MW/SW:Dual conversion superheterodyneFM:Single conversion superheterodyneFrequency rangeLW/MW/SW:9kHz-29.99999MHzFM:87.5MHz-108MHz (AEP model)76MHz-108.09998MHz (US,1-AEP,UK,E model)SAT:137.62/141.12MHz (when the AN-P1200 is connected:1.691GHz/1.6945GHz)Detection modeAM WIDE,AM NARROW,SYNCUSB,SYNCLSB,SSB-USB,SSB-LSB/CW,N.B.FMIntermediate frequencyLW/MW/SW:55.845MHz (first),455kHz (second)FM/SAT:10.7MHzSensitivity (measured at the external antenna connector)9kHz-49.99kHz:30dBuV (30uV)(AM WIDE.S/N =6dB)50kHz-1.99999MHz:20dBuV (10u)(AM WIDE S/N =6dB)2MHz-29.99999MHz:OdBuV (1V)(AM WIDE),-15dBuV (0.17uV)(SSB,S/N=6dB)76MHz-108.09998MHz:10dBV (3uV)(FM,S/N =30dB)SelectivityModeBand widthAM WIDEAM NARROWSSBFAX/RTTYN.B.FM-6dB±3.0kHz±135Hz±1.35kHz±1.75kH2±7.0kHz-50dB±7.0kH也±3.0kHz±3.0kHz±3,6kH2±12.5kHzAntennaExtemal antenna connector:BNC connector,impedance 50 ohmsSupplied antenna (AN-V21):Telescopic antenna,ferrite bar antennaImage frequency interference ratioMore than 70dBIF interference ratioMore than 80dBFAX/RTTY/sattelite FAX broadcast sectionFAXDrum speed:60,90,120,240rpmIndex of Cooperation:H (576)L(288)RTTYTransmission speed:BAUDOT 60,66,75,100WPMASC1l110,200,300,800bpsSatellite FAXDrum speed:120,240rpmIndex of Cooperation:H(576),L/288)VISUAL WORLD--Continued on next page-BAND RECEIVERDFILMSONY