General_Electric_Superadio_1_Superadio_2_维修维护电器原理图手册

GENERALELECTRICMODEL7-2885A/B/CFM/AMPORTABLE RADIOSERVICE INFORMATIONFILE TAB 7CAUTION:THIS MANUAL IS DESIGNED FOR USE BY QUALIFIED ELECTRONIC TECHNICIANS ONLY.CONSUMERUSERS ARE URGED TO CONTACT QUALIFIED FACTORY AUTHORIZED SERVICE FACILITIES FOR REPAIRS.FEATURESAir-gang tuning capacitor with tuned RF on FMand AM976mm (38")swivel.whip antenna 200mm(7-7/8")AM ferrite rod antenna External AM andFM antenna terminals Ceramic IF filter plus 3 IFtuned circuits on FM Four IF tuned circuits on AMAFC (Automatic Frequency Control)with AFCdefeat switch for fine tuning of adjacent stations●Precision vernier tuning●Two-speaker per.formance:6-1/2"high sensitivity speaker,plus piezotweeter 700mw RMS audio output Separate Bassand Treble controls Loudness control boosts bass6 "D"size batteries (not incl.)for up to 460 hoursbattery life Two-way Power:Automatic switching frombatteries to AC when plugged in Separate power On/Off switch Earphone jack for optional earphone orheadphone GE AM/FM Integrated Circuit (IC)Optional:Earphone 5-1082,Headphone 3-5750SERVICE SPECIFICATIONSELECTRICAL120 Volts AC,60HzSENSITIVITYAM-Better than 65uv/M9 Volts DC(Average)for 20db quietingFM-Better than 8 uvBATTERIES6"D"Sizefor 30db quietingTUNING RANGEAM-530-1630KHzPOWER OUTPUT900MWFM-87.5-109MHzg10号DIST0 RTION(Average)INTERMEDIATEAM -455 KHzFREQUENCIESFM-10.7 MHzMINIMUM VOLUME1.1MVHUM (Average)SPEAKER8 ohms-WooferCURRENT DRAINAM-15mAIMPEDANCE140 ohms -TweeterIDLE CURRENTFM-21mA(Average)AUDIO ELECTRONICS TECHNICAL SERVICES.UTICA,NEW YORK37-6010-8311/83