RCA-Victor-Co-Inc-86T3 电路原理图.pdf

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1、PAGE 35-B MODELS 86T2, 86T3 8. 87T1 Six- and Seven -Tube, Three -Band, A -C, Superheterodyne Receivers MODEL 86T2 Model 87T1 Ca -ANT. 6000 Kg L II SEC. AD.) 460 K.0 ,.t391 q V ohINOL! L- -._ 15 CT i16U51 er. - rfiECT c11 -05C. 6000 HC OS Ca631 ITUNING .0I,. C4 i , e, ._ 500 KC OUTPUT C-r-OSC. 20,000

2、 KC 12LE L I 3FRI RS 3 SEC.ACI.J. 960 KC. 2DET.$A.VC 6N-174 BOTTOM EDGE -REAR OF CHASSIS -Radiotron, Component Part, and Trimmer Locations Electrical Specifications FREQUENCY RANGES Standard Broadcast (A)540. 1,740 kc Medium Wave (B)2,300. 7,000 kc Short Wave (C)7,000.22,000 kc Intermediate Frequenc

3、y RADIOTRON COMPLEMENT ( 1 ) RCA -6A8 First Detector-Oscillator (2) RCA -6K7Intermediate Amplifier (3) RCA -6H6Second Detector and A.V.C. Pilot Lamps (2) POWER SUPPLY RATINGS Rating A 105.125 volts, 50.60 cycles, 75 watts RatingB 105.125 volts, 25.60 cycles, 75 watts RatingC. 105.125/200-250 volts,

4、50.60 cycles, 75 wattsV.C. Impedance POWER OUTPUT Undistorted2.2 watts Maximum4.5 watts Alignment Procedure LOUDSPEAKER Model 86T3 R -F ALIGNMENT FREQUENCIES Medium Wave (B)6,000 kc(osc., ant.) Short Wave (C)20,000 kc (osc.) Standard Broadcast (A) . 600 kc (osc.), 1,500 kc (osc.) 460 kc (4) RCA -6F5

5、Audio Voltage Amplifier (5) RCA -6F6Audio Power Amplifier (6) RCA -5W4Full -Wave Rectifier (7) RCA -6U5 (Model 87T1 only)Tuning Tube Mazda No. 46, 6.3 volts, 0.25 amp. Type6 -inch Electrodynamic 84091-1 84001-3 2.6 ohms at 400 cycles j84091-2 84001-6 4.7 ohms at 400 cycles With the gang tuning -cond

6、enser plates in full -mesh position, adjust the pointer to tion mark on the dial scale. The pointer is soldered in placeon the drive cable. the low -frequency (end) calibra- Order of Alien- - ment Test Oscillator Range Selector Receiver Dial Setting Circuit to Adjust Adjustment Symbols Adjust to Obt

7、ain Connection to Receiver Dummy Antenna Frequency Setting 1 6K7 I -F Grid Cap . .001 Mfd.460 kcA Left No Signal 550-750 kc 2nd I -F Trans. L12 and L13Max. (peak) 2 6A8 Det. Grid Cap .001 Mfd.460 kcA No Signal 550-750 kc 1st I -F Trans. L1.0 and L11Max. (peak) 3Ant. Term.300 Ohms6,000 kcB Center6,00

8、0 kcB Osc. C11Max. (peak)* 4Ant. Term.300 Ohms6,000 kcB6,000 kcB Ant. C2Max. (peak) 5Ant. Term.300 Ohms20,000 kcC Right20,000 kc C Osc.C7Max. (peak)t 6Ant. Term.200 Mmfd.600 kcA Left600 kcA L -F Osc.LaMax. (peak) 7Ant. Term.200 Mmfd.1,500 kc1,500 kcA H -F Osc. C10Max. (peak) 8Ant. Term.200 Mmfd.600k

9、c600kcA L -F Osc. LSMax. (peak) 9Ant. Term.200 Mmfd.1,500 kc1,500 kcA H -F Osc. C10Max. (peak) Note that the heterodyne oscillator tracks above the signal frequency on bands A and B, and below the signal frequency on band C. * Use minimum capacity peak Use maximum capacity peak RCA VICTOR DIVISION O

10、F RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN ANT.GNI:). C4 4.11 470 MMF B LI .0. L2 35 L3 An I 1 RANGE SELECTOR it SHOWN IN -A-BAND POSITION. ROTATE KNOB CLOCKWISE FOR BgcC BANDS e-. cE o C7 52 122-10 MMF. 3-15 C2 MMF. C3if 15 -40 0 MMF 51 CD CD 13 2 C11-2,0 NionF),

11、 ,C8 10 I1 1600 MMF 1.51,DET.$ 05C. 6A8,-Rao.ift-11-, Top so, -NI,TERM R1 33,000n. L.)00 00,0 as no L4 ,-1: ItoC14o,c:; Ivirvw LW L11 7.2._7.2w 61,7 R2 I 470,000 C15 110 MME o III Li 2 PHONO. TERM. .1 BRD. 2 DET. LI 3cT.2.8/ A.V. C. 6H6 1.2 rt C27 120 MMF 0 R4 2. 2 MEG. C16 0.1 M FO.= C5 56MMF R3 18

12、,000n C6 15-400 M M F. 017 0.1 = 28 tao MME Ri 22,o6o,. PZ P, 3 E C19 so co. t 180 MME 5 e.C.7. z r- VOL. , I CONTROL R17I R8 10,000I _ 250,00or. .r14 TOTAL C 30 I -r .025 V.1/. MFO - C20 .01 MFD, REMOVE LINK FOR PHONO. OUTPUT C22 -.o16F6 MFD. IF - tP18 Lu AUDIO 6F5 Cal_J 270 MMFCC R9ID 2.2 MEG. La

13、R10 270,000n z C31-.00sMFo R11 390,000n. -.- C%3 = 0.25 MFD. R30 2. MEG. c, IC012 I r 5600 n_ R5 , MOVABLE SEGMENTI , (ROTOR) I 1 - - -n- =-GREEN - t1-0 Tn.- 60.-., I 1 . 13.3n.- 2.5n. T1 I I 1-I GREEN I 4 I i-RED BROWN I I 8,S4 i - .1,., (. I 0 MFD. -r - -1 r 4-) -L. C40 r- 7, R31 .025_1_ t 1 MEG M

14、ED. -= I - ,(- , ON MODEL BTU _ TUNING ONLY TUBE 6U5 0.SC. COIL 1.9 RED 775n.-60. 111 0 n. BROW N BROWN -BLACK T2 GREEN C23 .005 MFD BROWN tc: c.CR) L14 00. HUM NEUT. COIL L16 SPEAKERRESISTANCES TYPELI4L1612PRI.T2SEC 084411v- 13 2. 40.165200.37 84091-2 84001-6 4.50.227000.5 BLUE TO HEATERS DIAL LAMP

15、S -Schematic Circuit Diagram CAP RECT. 5W4 YELLOW C24 10 MFD P-84133-5 Precautionary Lead Dress.-(1) Keep leads from Cl as short as possible.(2) Dress yellow and green leads from range selectortooscillator coilbetween front apron and range selector.Maintainoriginallength andsizeofthe following:(3) b

16、usleadfrom antennacoil Ll to range selector and (4) lead from oscillator coil to chassis. 收音机爱 好者资料库 RadioFans.CN PAGE 3 5 3- B onie 00 I.3at Oil i RECT. 5W4 5V. A.C. f 1 t 1t tf f. 350V. 1 (-3.6V*)i I 1 1 II A.C.1 1 1-0.1V. I186V.I 350V. 1 I I16.4V. n(*) IFA.C.1 ! -3 6)1z,-. 0 A.C.1 336V. 1 IL -35V

17、. ,t- re -Pc I(39 1 0 I I I-190 +1 250V. mg EL1 )I ,-1 240V. IC.G.sr at W i I II_ 336V.100V.e 0- ._. t -16.4V. ELECT. CAP C25 250V. - 1ST. I.F.TRANS. 6.4V. - 250V. IsT,DET A.C.-It SUPr; 1L_- - -1 .4 osc.,.1 0 _I TO TUNING TUBE6A B i L_ 0 06 US LIO er 460 KCT PRI. ADJ. (-16.4v.*)OUTPUT (ON MODEL 8711

18、 ONLY) 1 C.G I Li I -LJ .C. -0.6V. 6F6 , RED -BLACK -H 38.6 -MA 111., CZ6 -_-rot ,ic.i.e.nt3-9 MA- (CI 1 1- I.F.r.-,./ 77. BEITEWCTINI.CAP/6KF -_ )ThGREEN- I 01176.4V. Aci fin. A.C. e.7. uUP-I RED ELECT. CAP. -.- BLACK C24 225V, ei0250V. - -inv. -.- Measured at Ic12,c26/BLACK 186V. 115 volts, 60 -cy

19、cle supply -Tuned to ,., BROWN-L_ -DET.- - TERM- BRO. BLAc K.- 4 A.v.c.1 (:(-/ 0 1approximately 1,000 kc (Standard Broadcast ) - 1-(4). 0 No signal being received -Volume control minimum- (114V.) 0 0 1 i50V. .,6H6 1 C.G0 1 -3 -ye1 I I -3.6V. (1) 02) (0.3V)I(03V7) I1.1 O P 0.1V.I -0.2V. L12 gl. - 460

20、 KC pRi. ADJ. F Note: Two voltage values are shown for some read. I-,- ings. The value shown in parentheses with asterisk (*)!AUDIO 6.4v._j indicates operating conditions without voltmeter loading. I 6 F5A 1 Mik I ( -k -1.3V. )1 6.3V =I II2-1.F. TRANS.-I A.C-3.6V. I I . I -I- -I- -JI tt1. Radiotron

21、Socket Voltages and Trimmer LocationsBOTTOM VIEW -REAR OF CHASSIS REPLACEMENT PARTS- STOo.CK N DESCRIPTION STOCK No. DESCRIPTION 14380 14352 13216 12717 12607 12581 1134,0 12723 14262 12404 12406 12488 30433 30592 30303 4838 14383 4870 4839 12484 11203 30577 5212 4358 30578 30579 30573 30580 30586 1

22、2800 12006 30589 30681 30572 30584 30583 6226 30587 14636 14525 30590 14653 30591 11298 14559 30151 14284 12454 11323 RECEIVER ASSEMBLIES Arm -Hub and arm for operatingshutter -fastens on range switch shaft Belt -Station selector drive belt Board -Antenna and ground terminal board Board -Phonograph

23、terminal board Cap -Top shield cap for first I.F. transformer Cap -Top shield cap for second I.F. transformer Cap -Grid contact cap Capacitor -66 Mmfd. (C5) Capacitor -110 Mmfd. 1C14, C16) Capacitor -120 Mmfd. (C27, C2s) Capacitor -180 Mmfd. (C19) Capacitor -270 Mmfd. (C21) Capacitor -470 Mmfd. (C4,

24、 C9) Capacitor -1,600 Mmfd. (C8) Capacitor -.0035 Mfd. (C1) Capacitor -.005 Mfd. (C23, C31) Capacitor -.01 Mfd. (C20, C22) Capacitor -.025 Mfd. (C30, C40) (C40 - Model 87T1 only) Capacitor -0.1 Mfd. (C18, C17) Capacitor -0.25 Mfd. (C13) Capacitor -10 Mfd. (C12) Capacitor Pack -Comprising two section

25、s each 10 Mfd. (C24, C26) Capacitor -16 Mfd. (C25) :i Clamp -Mounting clamp for capacitor pack,Stock No. 30577 Coil -Antenna coil (L1, L2, L3) Coil -Oscillator coil (L4, L5, L8, L7, L8, L9) Condenser -2 -gang variable tuning condenser (C2, C3, C8) Condenser -3 -gang mica trimmer -two sections each 2

26、-10 Mmfd., one section 3-30 Mmfd. (C7, C10, C11) Cord -Station -selector indicator pointer cord Core -Adjustable core and stud for oscillator coil Core -Adjustable core and stud for I.F. transformer Dial -Station -selector dial scale Disc -Band indicator disc with celluloid window Drive -Vernier dri

27、ve shaft and pinion gear for variable condenser Drum -Station -selector drive -cord drum with set screws Indicator -Station -selector indicator pointer a n dholder assembly Lamp -Dial lamp Pulley -Drive -belt pulley for condenser shaft Pulley -Drive -belt idler pulley Resistor -22 ohms, carbon type,

28、 * watt (R13) Resistor -39 ohms, carbon type, * watt (R19) Resistor -50 ohms, flexible type, 1/10 watt (R20) Resistor -220 ohms, insulated wire wound, 1.1 watt (R12) Resistor -5,600 ohms, carbon type, 1 watt (R5) Resistor -10,000 ohms, insulated, * watt (R17) Resistor -18,000 ohms, insulated, 1 watt

29、 (R3, R32) (R32 -Model 87T1 only) Resistor -22,000 ohms, carbon type, 1/10 watt (R7) Resistor -33,000 ohms, insulated, * watt (R1) Resistor -270,000 ohms, carbon type, watt (R10) 13005 11452 12013 12679 11626 30582 14343 14350 14340 12008 11196 14114 13871 12007 30585 30588 30576 30574 14376 14308 3

30、0571 30617 30575 14616 14614 14934 14613 14815 14936 30595 30593 30594 143.59 14269 24267 14270 4982 Resistor -390,000 ohms, carbon type, 1/10 watt (R11) Resistor -470,000 ohms, carbon type, 1/10 watt (R2) Resistor -1 meg., carbon type, 1/10 watt (R31) (Model 87T1 only) Resistor -2.2 meg., insulated

31、, * watt (R4, R9) Resistor -2.2 meg., carbon type,* watt (R30) (Model 87T1 only) Retainer -Band -indicator disc retainer Ring -Retaining ring for range switch shaft Screw -No. 8-32 x 3/16 in. square -head set screw for drum, Stock No. 30584, arm, Stock No. 14380, and pulley, Stock No. 30587 Shaft -D

32、rive pulley and knob shaft fastens on range switch shaft Shield-I.F, transformer shield can Socket -8 -contact Radiotron socket Socket -Dial -lamp socket Socket -Tuning -tube socket complete -less cable (Model 67T1 only) Spring -Retaining spring for core, Stock No. 12006 Spring -Tension spring for p

33、ointer cord Spring -Tension spring for idler pulley Switch -Range switch (S1, S2) Tone control and power switch (R18, S4) Transformer -First I.F. transformer (LIO, L11, C14, C15) Transformer -Second I.F. transformer (L12, L13, C19, C27, C28, R7) Transformer -Power transformer, 105-125volts,25-60 cyc

34、le (T1) Transformer -Power transformer, 105-125 and 200-250 volts, 50-60 cycle (T1) Volume Control (R8) REPRODUCER ASSEMBLIES Coil -Reproducer field coil Cone -Reproducer cone and dust cap (for speaker marked 84091-1 or 84001-3) (L14) Cone -Reproducer cone and dust cap (for speaker marked 84091-2 or

35、 84001-6) (L14) Reproducer complete (marked 84001-3 or 8 but inter- changeable with speaker marked 84091-1 or 2) Transformer -Output transformer(for speaker marked 84091-1 or 84001-3) (T2) Transformer -Output transformer(forspeaker marked 84091-2 or 84001-6) (T2) MISCELLANEOUS ASSEMBLIES Bracket-Tun

36、ing-tu.i.0 mounting bracket and clip (Model 87T1 only) Escutcheon -Dial escutcheon and crystal (Model 88T3 only) Escutcheon -Dial and tuning -tube escutcheon and crystal (Model 87T1 only) Knob -Station selector knob Knob -Tone control, volume control, or range switch knob Sam -Chassis -mounting screw and washer assembly Spring -Retaining spring for knob, Stock No. 14289 Spring -Retaining spring for knob, Stock No. 14359 收音机爱 好者资料库 RadioFans.CN