Kenwood TS-950S Service Manual

Also see for TS-950S Digital: Instruction manual Instruction manual Instruction manual Instruction manual Service manual

T8-9908/SDDESCRIPTION OF COMPONENTSRF UNIT (X44-3100-00)ComponentsUse/Function Operation/Condition/Compatibility1C1,2BandinformationdecoderOpencollector.Active"'L"Q1-~3RFAGCamplifier£50,epKOeeke~“LeFOR SERVICEMANUALS-SyCONTACT:TiaMAURITRONTECHNICALSERVICES£dog Timi|www.mauritvon.co.uk|oak?1)+LeiTEL:01844-351694PeTyonpeeFAX:01844-352554LieTOaaribeza4AIPamplifier05,6RFamplifieQ7BufferQ8-11RXSUBistmixerConvertreceivefrequencyinto40.055MHz.Q12BufferQ13~16|RXMAIN1stmixerConvertreceivefrequnecyinto73.05MHz.Q17 SUBVCOamplifierQsMAINVCOamplitieraigTXDRIVEamplifierREoutputofRFunit;10dBmormore.20,21TX3rdmixerConvert73.05MHzintotransmissionfrequency.Q22{TXamplifieriQ23SwitchingWhenRB3become"'H”,outputto"'L".Q24SwitchingOninMONITORoperation.a25SwitchingOninAFTUNE.Q26~28Switching Transmissionfilterselect.a26Q29~31SwitchingAlP turnedonandoffselect.Q32SwitchingOninMONITORoperation,Q33~35Switching|Biasofmixercircuitselect.Q37SwitchingATTinMONITORoperation.D1,2Relay surgevoltageabsorption1:10dBATT,D2:20dBATT.03VoitageregulatorVoltage supplyofiC1andIC2(5V).04,5Lightning surgeprotectionD6~35RX BPFselect.036 SwitchingMARKERcircuitswitch.037,38AFAGC AGCcircuitpin diode.039Switching Frequencyrange0.5MHzlessandmoreselect.B40Voltageshift041 Voltageregulator042~45SwitchingAIP turnedonandoffselect.046,47Reversecurrentprevention048,49SwitchingMONITORturnedonandoff.050,51 SwitchingMAIN VCOtransmission andreceiveselect.D52~57Switching TX BPFselect.D58~60Reversecurrentprevention TXmixercircuit bias.061Reversecurrentprevention DecidetogainofthePOWER CONTROLorATTUNE.D62 ReversecurrentpreventionD63Lightning surge protection064 SwitchingMARKERcircuitswitching.65