RCAVICTOR 721TS Specifications

^rcaVictorTELEVISION RECEIVERMODEL721TSChassis No. KCS26-1(60 cycles),KCS26-2(50cycles)Mfr. No. 274ServiceDataModel 72 ITSWalnutorMahogany—1947 No. T4

721TSALIGNMENT PROCEDURE (Continued)H-F ANDCONVERTER LINEADJUSTMENT—Connect ther-f sweeposcillatorto thereceiver antennater-minals. If thesweeposcilla

ALIGNMENTPROCEDURE(Continued)72 ITSccConnect thesignalgenerator to thereceiver antennaterminals.Theorder ofalignmentremainsthesameregardless ofwhichme

721TSALIGNMENTTABLETHE DETAILED ALIGNMENTPROCEDUREBEGINNINGON PAGE8SHOULD BEREADBEFOREALIGNMENTBYUSEOF THETABLESISATTEMPTED.DISCRIMINATORANDSOUND IFAL

ALIGNMENTTABLE (Continued)72 ITSTHE DETAILED ALIGNMENTPROCEDUREBEGINNINGON PAGE 8 SHOULD BE READ BEFORE ALIGNMENT BYUSE OF THE TABLESIS ATTEMPTED.PICT

721TSALIGNMENTTABLE(Continued)THE DETAILEDALIGNMENTPROCEDUREBEGINNINGON PAGE8SHOULD BEREADBEFOREALIGNMENTBYUSEOF THETABLESISATTEMPTED.R-FANDCONVERTERL

cALIGNMENT TABLE (Continued)R-F OSCILLATOR ALIGNMENT72ITSSTEPNo.

721TSCHASSISVIEWST106POWERTRANSFORMERIFigure 21—ChassisTopView (ShowingLocationofMajorComponents)3NOTE: IN SOMERECEIVERS.LI02 ISUSED INPLACE OF TI04Fi

cWAVEFORMPHOTOGRAPHS721 TSPeak topeak voltagesshownare nominalwhen1 volt peakto peak videosignalisappliedto Islvideo amplifier(V105).VideoSignalInput

72 ITSWAVEFORMPHOTOGRAPHS(Continued)Figure35—Vertical(25Volts,PtoP)OutputofIntegrating Network(JunctionofR138 and C125)Figure36—GridofOscillator Tube(

CHASSISWIRINQDIAGRAM--11n iT^SE7J'S'J" IMOTE;t':^hzJ(^oLi-:^Earlyproductionsets employedbright-ness andpicturecontrol#71784 in whi

72 ITSELECTRICAL ANDMECHANICAL SPECIFICATIONS(Continued)PICTUREINTERMEDIATE FREQUENCIESPicture Carrier Frequency25.75 McAccompanying Sound Traps21.25

CHASSIS WmiNQDIAGRAM72«E»-;i(eS--.»N.-_^^^~Jb1I9to iontrap UlMiNEJ?-"^^*«vJlf—f'o^l-The frontpanel controldecats are af-fectedbythe controlc

72 ITS-"-< ^49050-15 hasbooks for use6^73193. Sub-productionin-:iesignatedasIn earlyproductionreceivers, an EMtypeof iontrapmagnet was employe

72 ITSSCHEMATICDIAGRAMFigure50—jR-F Unit WiringDiagram20I n some receivers, substitutions havecaused changesIncomponentleadcolorcodas,inelectrolyticca

SCHEMATICDIAGRAM721TSVI146bA615T.SOUND 1-FAMresistance valuesin ohms. K:1000.Allcapacitance valuesless than1 in MFandabove 1 inMMF unless otherwisenot

J721TSREPLACEMENTPARTSSTOCKNo.750667506771504715007150271520454663310165401715407150172122714697147971470725977255271480725537148171472714717149271491

REPLACEMENT PARTS(Continued)72ITSSTOCKNo.DESCRIPTIONSTOCKNo.DESCRIPTION7152871429714497323371789715217178473193727357144071443727347144171785714577143

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RECEIVEROPERATINGINSTRUCTIONS72 ITSThefollowingadjustments are necessary whenturning thereceiver on ior thefirst time:1. Turn thereceiver "ON&quo

721TSINSTALLATIONINSTRUCTIONSTheModel 72 ITS television receiveris shippedcomplete inone carton exceptforthe10BP4kinescope. The kinescopeisshipped ina

INSTALLATIONINSTRUCTIONS (Continued)721TSCccSlip thekinescopeaslarforward aspossible. Slidethekinescopecushionfirmly upagainst theflare of the tubeand

72 ITSINSTALLATION INSTRUCTIONS(Continued)Figure 8—R-FOscillatorAdjustmentsVIDEOPEAKINGLINK—A videopeakinglink is providedtopermitchanging the videore

SERVICE SUGGESTIONS72 ITSCCSome of thepossibletroubles that may beencountered,withtheir effects and causes,are listedbelow:NORASTER ON KINESCOPE—Theef

721TSALIGNMENTPROCEDURETESTEQUIPMENT—To service thisreceiver properly,it isrecommendedthatthe following testequipmentbeavailable:R-F Sweep Generatorme

ALIGNMENT PROCEDURE (Continued) 721TSORDEROF ALIGNMENT—Whenacomplete receiveralignmentis necessary, itcan be most conveniently periormed inthefollowin