RCA-Victor-Co-Inc-85T5 电路原理图.pdf

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1、PAGE 336-B MODEL85T5 Five -Tube, Two -Band, A -C, Superheterodyne Receiver Model 85T5 SC. 20,00 0 tt C 0 RECT 51,725 ANT. COIL C6 OUTPUT OCT 605C. C5 osc 8 n COIL .4-r4Aufc 75 /177 I.F ITRANSF LI1 SIC AD! 460 n C AC OSC. 1,700 M.C. (So 6D6 :11;EAM. 276 I FL15 er,SIC. ADJ. 4604C ,TRANSF. 11OSC. GOO M

2、.C. -Radiotron, Coil, and Trimmer Locations Electrical Specifications FREQUENCY RANGES -Broadcast. (A) Short Wave (C) Intermediate Frequency RADIOTRON COMPLEMENT (1) RCA -6A7 (2) RCA -6D6 Pilot Lamps (2) R -F ALIGNMENT FREQUENCIES 530.1,900 kcBroadcast (A)600 kc (osc.), 1,700 kc (osc.) 5 800.21,600

3、kcShort Wave (C)20,000 kc (osc., ant.) 460 kc (3) RCA -75Second Det., A -F Amp. and A.V.C. First Detector-Oscillator(4) RCA -42Audio Power Amplifier Intermediate Amplifier(5) RCA -80Full -Wave Rectifier Mazda No. 46, 6.3 volts, 0.25 ampere POWER SUPPLY RATINGS Rating A Rating B Rating C POWER OUTPUT

4、 RATING Undistorted Maximum L3 177 OCT OSC. C3 6472-1 rr 00S 2.0 watts 4.5 watts O. CLOS. 1,1040ylii tri A 220 000* C111 Mt 51,0004 .007 105.125 volts, 50.60 cycles, 75 watts 105.125 volts, 25.60 cycles, 75 watts 100.125/200-250 volts, 50.60 cycles, 75 watts LOUDSPEAKER TypeElectrodyaamic Voice Coil

5、 ImpedanceVA ohms at 400 cycles 00050. TERM.op. 177-017 44.V. C 70. 3 13 32700* Mib POI 1.70,000A 45OrgnOUTu7:7rF07Pk 42 TR Cflo =10 C.001 .111.0 1:4 TON* CONN. nu MUM. NEWT COIL or t.r TI lanaR.tritgitMO 11.4, I ISA .0. ROWN-1.110% AD 60 GLACM 220-110V-10,780.1.15 MAIO !OA 110040. ok GnOwl. 06.010.

6、, (St1Lasncon -GOnTRANS wig. MR ZROV-00. -Schematic Circuit Diagram RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 3 37- B 85T5 Precautionary Lead Dress.-(l) Keep leads of C2 and C9 as short as possible. (2) Dress leads from power trans- form

7、er and a -c switch away from antenna coil and associated wiring. (3) Red lead from range selector ter 4 to oscillator coil L9 should have two tight turns around trimmingcapa- citor C8. SPEAKER CONNECTIONS 411./1 TRANS. CONNECTIONS:e111.11 TARNS CONNECTIONS .0., .- .4, 05 ;r : . .84 KflpiiiLOH 0 fj4r

8、 rift IiiINI. ff. a. V.1000 raapil. IbMOVV,4.7: (1:1C.v.:1,1%.4.- a -Kea = = a.kie - 4 I I IIs, 1 -0.2V. I.F. TRANS. rx 440T, t44 4II IIII II I 250V. 1165V.1(-LW 340V. .) IINV I(Al-0.EV. . 1,-4-.,I.2.0y : re-,.-,-1 1 L4 r i rrj 5 ST ILF.6-i,) 0 ,.J1 C 0 51/. A.C. POWER CONNECTIONS dii. MAO( TRANS. A

9、.0 41. - t_ _.1i sSDEAT,40SC.CIATHODE.CCIRRENT /1.2- .: :(3.M: ANT COILRECT 80 21 C.G+1.,.- I F . 7-. ) GOB cse -100V.- TO, 6.3V.co u. -I.250 V.- -:y to.4 .,. 0.22E11. .42.0111E. 14.5, SCOWL* a CANNOT BE MEASURED AT SOCKET. r - - - - - :C29 rEE 111 C I Ta Pill .,-.-I 76 _5.c. C12 r - fi. 3V. (-A.C.

10、I (3?7 2DET +71:3lie_.V.0 ,r_,I65V. r -v.) ( e _ 330V.- - -.OUTPUTri,. 42 ,._, r -71) 9 (.16v.)r,s 4 -arm1, A.C. RNT. CONNECTIONS COIL 21 IFTRANS 250V. (-1.3V.*) -0.1 V. 7SV, -0.IV. I I ;I V 1 1238V. C30 1250V. ! I1 , 250V. I _I1.181 / 7 2 - 1I1_It I 4.4.- L.(E f BOTTOM REAR OF CHASSISit -Radiotron

11、Socket loltag.s, Coil, and Triminer Locations Measured at115 volts, 60 -cycle supply -Tuned to approximately 1,000 kc (-13roadcast)-CONNECTIONS No signal being received-Volume control minimum Note: Two voltage values are shown for some read- ings. The value shown in parentheses with asterisk (*) ind

12、icates operating conditions without voltmeter loading. Alignment Procedure Calibrate the tuning dial by adjusting dial pointer to the low -frequency (end) calibration mark on Broadcast scale with the gang tuning -condenser platesinfull -meshposi- tion.This is a friction adjustment. mi OSC.COIL Test

13、Oscillator CircuitAdjustmentAdjust toOrder of AlignmentConnection to Receiver Dummy Antenna Frequency Setting Receiver Dial Setting to AdjustSymbolsObtain 1 6D6 I -F Grid Cap .001 MM.460 kc No Signal 550-750 kc 2nd I -F Trans. L12 and L13Max. (peak) 2 6A7 Det Grid Cap .001 Mfd.460 kc No Signal 550-7

14、50 kc 1st I -F Trans. L10 and L11Max. (peak) 3Ant. Post300 Ohms20,000 kc20,000 kcC Osc. C5Max. (peak)* 4Ant. Post300 Ohms20,000 kc RockrThcu 20,000 k C Ant.C3 Max. (Peak)t 5Ant. Post200 Mmfd.600 kc600 kcA L -F Osc. L8Max. (peak) 6Ant. Post200 Mmfd.1,700 kc1,700 kcA H -F Osc. C8Max. (peak) 7Ant. Post

15、200 Mmfd.600 kc Rock Thru 600 kc A L-F Osc.L8Max. (peak) 8Ant. Post200 Mmfd.1,700 kc1,700 kcA H -F Osc. C8Max. (peak) * Use minimum capacity peak. t Use maximum capacity peak. 收音机爱 好者资料库 RadioFans.CN PAGE 338-B 85T5 REPLACEMENT PARTS Insist on genuine Factory tested parts, which are readily identifi

16、ed and may be purchased from authorized dealers. STOCK No, DESCRIPTION STOCK No. DESCRIPTION RECEIVER ASSEMBLIES 11365Resistor -82,000 Ohms, Carbon type,I watt (R13) 5145Resistor -100,000 Ohms, Carbon type,Iwatt (RIO) 14352Belt-Variable condenser drive belt 11398Resistor -220,000 Ohms, Carbon type,

17、110 watt (R6) 12717Board-Phonograph terminal board 11323Resistor -270,000 Ohms, Carbon type, I watt (R12) 14338Bushing-Variable condenser mounting bushing assembly 13479Resistor -390,000 Ohms, Carbon type, I watt (R14) 12607Cap-First I.F. transformer shield top 11626Resistor -2.2 Megohm, Carbon type

18、,Z watt (R5) 12581Cap-Second I.F. transformer shield top 13732Resistor -10 Megohm, Carbon type,Iwatt (R4) 12118Cap-Grid contact cap 14350Screw-No. 8-32 x 3,16 Square head set screw for gear 12714Capacitor-Adjustable trimmer (Medium) (CS)Stock No. 14349 and drum Stock No. 14345 12807Capacitor-Adjusta

19、ble trimmer (Short)(C5) 12799Shield-Antenna or oscillator coil shield 12629Capacitor -56 Mmfd. (C16) 13311Shield-Chassis end shield and mounting bracket assem- 13394Capacitor -82 Mmfd. (C7) bly 12404Capacitor -120 Mmfd. (CI5, C17, C18) 12008Sheld-I. F. transformer shield for Stock No. 12801 and 1272

20、4Capacitor -120 Mmfd. (C24)No. 12653 12406Capacitor -180 Mmfd. (C19) 3662Sh;e1d-Shield for 75 Radiotron 12812Capacitor -450 Mmfd. (C11) 3950Shield-Shield for 6D6 Radiotron 12811Capacitor -3,600 Mmfd. (C9) 14114.Socket-Dial lamp socket 5148Capacitor-.007 Mfd. (C2I) 4794Socket -4 contact 80 Radiotron

21、socket 4868Capacitor-.005 Mfd. (C28) 4786Socket -6 contact 6D6, 42 or 75 Radiotron socket 11315Capacitor-.015 Mfd. (C27) 4787Socket -7 contact 6A7 Radiotron socket 4858Capacitor-.01 Mfd. (C10, C22, C25) 12007Spring-Retaining springforcore StockNo. 12006 4841Capacitor -0.1 Mfd. (C2, C14, C26) 14342Sp

22、ring-Tension sprng for idler Stock No. 14341 4840Capacitor -0.25 Mfd. (C23) 12907Spring-TensionspringforindicatorgearStockNo. 5170Capacitor -0.25 Mfd. (C13) 14351 11240Capacitor -10 Mfd. (C29) 14336Switch-Range switch (S2) 5212Capacitor -16 Mfd. (C30) 14337Switch-Tone control switch and power switch

23、 (Si, S3) 14377Capacitor -16 Mfd. (C12) 12801Transformer-FirstI.F. transformer (L10, L11, C15, 12797Coil-Antenna coil and shield (L2, L3. L4, L5) C16) 12798Coil-Oscillatorcoiland shield(L6, L7,LES,L9) 12653Transformer-Second I.F. transformer (L12, L13, C17, 14348Condenser-I-gang variable tuning cond

24、enser(C3,C4, C18, R6, R8) C6) 13392Transformer-Power transformer,105-125volts,50-60 5119Connector -3 -contact female connector for speaker cable cycle (T1) 12800Core-Adjustable core and stud assembly for coil Stock No. 12798 13566Transformer-Power transformer,105-125volts,25-60 cycles (T1) 12006Core

25、-Adjustable coreand studfortransformerStock No. 12801 and No. 12653 13393Transformer-Power transformer, 105.125, 210.250 volts, 50-60 cycle (T1) 14339Dial-Station dial and mounting bracket assembly 14335Volume Control-(R11) 14353Drive-Variable condenser vernier drive pinion gear and shaft 13192Washe

26、r-Felt washer for indicator pointer 14345Drum-Variable condenser drive belt drum complete with set screws REPRODUCER ASSEMBLIES (RL-63F-1) 14349Gear-Indicator drive gear and hub complete with set 14356Board -3 contact reproducer terminal board Screws 13866Cap-Cone center dust cap 14351Gear-Indicator

27、 pointer stem andgearcomplete with 12012Coil-Field coil (L16) tension spring 11469Coil-Hum neutralizing coil (L14) 14341Idler-Station selector drive beltidler 12642Cone-Reproducer cone and dust cap (L15) 14344Indicator-Stationselectorindicatorpointer 5118Plug -3 contact male plug for reproducer 5220

28、Lamp-Dial lamp 14360Reproducer-Reproducer complete 14028Nut-Jamb nut for trimmer capacitors 14358Screw-Screw, washer and lockwashertoholdcorein 14340Pulley-Station selector drive belt pulley and knob shaft yoke 14347Reflector-Dialreflectorand lamp bracket assembly14355Transformer-Output transformer

29、(T2) 14343Retainer-Drive shaft and pulley retainer-holds tuning knob shaft and pulley on range switch shaft 14357Washer-Spring washer to hold field coil 13874Resistor -18 Ohms, Carbon type,Iwatt (R17)MISCELLANEOUS ASSEMBLIES 13819Resistor -270 Ohms, Insulatedwire wound,1.1watt 14479Escutcheon-Statio

30、n selector escutcheon and crystal 12759 (R16) Resistor -15,000 Ohms, Carbon type,Iwatt (R2) 14269Knob-Volume control, tone control or range switch knob 13-177Resistor -27.000 Ohms, Carbon type,1watt (R3) 14359Knob-Station selector knob 13735Resistor -33.000 Ohms, Carbon type,Iwatt (R9) 11377Screw-Chassis mounting screw and washer assembly 5029Resistor -56,000 Ohms, Carbon type,I watt (RI) 4982Spring-Retaining spring for knob Stock No. 143:59 11282Resistor -56,000 Ohms, Carbon type,110 watt (R8) 14270Spring-Retaining spring for knob Stock No. 14269 收音机爱 好者资料库 RadioFans.CN