RCA-Victor-Co-Inc-87K 电路原理图.pdf

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1、PAGE 345-B 86BK 77Screw -Chassis mounting screw and washer for Model 5112Resistor -1,000 ohms, carbon type, 1watt (R2)86BT 11283 Resistor -1,200 ohms, carbon type, 1 watt (R16)4284Spring -Fuse holder tension spring 5144Resistor -2,700 ohms, carbon type,1 watt (R14)4982Spring -Retaining spring for kn

2、ob Stock No. 14359 11305Resistor -22,000 ohms, carbon type, 1 watt (R5)14270Spring -Retaining spring for knob Stock No. 14269 14284 Resistor -22,000 ohms, carbon type, 1/10 watt (R7)4285Washer -Fuse holder insulating washer 收音机爱 好者资料库 RadioFans.CN PAGE 346-B MODELS 86E, 86K, 86K7, 86T, 86T1, 87K, an

3、d 87T Six- and Seven -Tube, Three -Band, A -C, Superheterodyne Receivers Model 86T1 Electrical SpeciAcations FREQUENCY RANGES Broadcast (A)530- 1,720 kc Medium Wave (B)2,100. 6,800 kc Short Wave (C)6,800.22,000 kc R -F ALIGNMENT FREQUENCIES Short Wave (C) Medium Wave (B) Broadcast (A) Model 87K 20,0

4、00 kc (osc.) 6,000 kc (osc., ant.) 600 kc (osc.), 1,500 kc (osc.) Intermediate Frequency460 kc RADIOTRON COMPLEMENT(4) RCA -6E5Audio Voltage Amplifier (1) RCA -6A8First DetectorOscillator(5) RCA -6F6Audio Power Amplifier (2) RCA -6K7Intermediate Amplifier(6) RCA -5W4Full -Wave Rectifier (3) RCA -6H6

5、Second Detector and A.V.C.(7) RCA -6G5 (Models 87K and 87T only) . Tuning Tube Pilot Lamps (2)Mazda No. 46, 6.3 volts, 0.25 amp. POWER SUPPLY RATINGS Rating A105.125 volts, 50.60 cycles, 80 watts Rating B105.125 volts, 25.60 cycles, 80 watts Rating C100.130/140-160/195-250 volts, 40-60 cycles, 80 wa

6、tts POWER OUTPUT Undistorted. 2.5 watts Maximum4.5 watts LOUDSPEAKER TypeElectrodynamic (RL-70E-1) 2.2 ohms Impedance (v.c.).(84001.3) 2.6 ohms.at 400 cycles (84001.6) 4.7 ohms 4111 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 347-B 86E, 86

7、K, 86K7, 86T, 86T1, 87K JSBO Ow:TONINGI C7-OSC. 55-72887 K ONLY . 1 .120000 K C AUDIO RECT RECT. 2DET A.V.C. TR0-.ANST TO TERNVC TRANS DET OSC. C3 -ANT 6000 K.0 .1-14 SEC. 40.1 460K .0 LIZ SEC. ADJ. 460 K.C. -Radiotron, Coil, and Trimmer Locations (Models 86E, 86K, 86K7, and 87K) L14LIZ SEC 40.1 SEC

8、. ADJ 460 H.C.TO TERM. C4606 E OUTPUT 5 AUDIO OFT;6G5 TOP FRONT OF CNASSti_s , /, , , 81T ONLY C11-OSC.C13 -05C.L9-0 SC / SN-7236000K.C.1500 K.C.600 K.C. 111 USED ON -Radiotron, Coil, and Trimmer Locations (Models 86T, 86T1, and 87T) Alignment Procedure ISY PET. OSC. C3 -ANT. 6000 N.C. C7- 05C. 20,0

9、00K .C. Calibrate the tuning dial by adjusting main dial pointer to the low -frequency (end) calibration mark on dial with the gang tuning -condenser plates in full -mesh position; then adjust the small (vernier) pointer to 0. These are fric- tion adjustments. STEP CONNECT HIGH SIDE OF TEST OSC. TO

10、- TUNE TESTOSC TO - TURN RADIO DIAL TO ADJUST THE FOLLOWING FOR MAX. OUTPUT 1 I -F Grid In series with 0.01 mfd Kc Quiet point near 800 Kc *A II Band L14L13 aid I -F Trans. 2 1st Det. Grid In series with 0.0 imrd LizL11 1st I-F Trans. 3 Antenna in series with 300 ohms 20000 Kc 20000 Ka 1,C 0, Band C

11、7 Osc. 4 6000 Kc 6000 Kc B Band C11AC3 Osc.Ant. 5 Antenna in series with 200 mid 1500 Re 1500 Kc A Band C 13 Osc. 8600 Kc 800Kc NA , Band L9L -F Osc. Rock Gang 7Repeat Step 5 use minimum capacity peak. TYPE115 L1672-PRI.T2 -SEC. 111.-70E-11.80.13760.26 84001-32.40.165200-37 84001-64.50.227000.50 SPE

12、AKER RESISTANCE VALUES SPEAKER CONNECTIONS REDBLACK us OWN BROW (Models 86K, 86K7, and 87K) BROWN-B.0a BROWN BLACK TL PLEER YELLOW (Models 86T, 86T1, and 87T) LW PrecautionaryLeadDress(Models86E,86K, 86K7, 87K).-( 1) Keep bus lead from term. 9 of S1 -S2 to ground lance as short as possible.(2) Bus l

13、ead from term. 6 of S1 -S2 to L5 should be 4 inches long.(3) Bus lead from term.5 of Sl-S2 to C7 -C8 should be 2% inches long. (4) Keep bus lead from term.1 of S1 -S2 to L1 -L2 as short as possible.(5) Bus lead from LI to C3 -C4 should be 3% inches long. (6) Keep C6, C9, C10, and C12 so that broad s

14、ide is perpendicular to chassis and keep their leads as short as possible. (7) Keep blue lead from OP of tube 1to L6 dressed away from chassis and other leads. (8) Yellow and green leads from terms. 11 and 12 of S1 -S2 to oscillator coil must be twisted and dressed under all range switch bus leads.

15、(9) Keep green lead from term. E of 2nd i-f trans. to term. 2 of phono. board as short as possible. Precautionary Lead Dress (Models 86T, 86T1, 87T).- (1) Keep bus lead from term. 9 of Sl-S2 to ground lance as short as possible.(2) Bus lead from term. 6 of S1 -S2 to L5 should be31/4 inches long.(3)

16、Bus lead from term. 5 of SI-S2 to C7 -C8 should be 21/4 inches long.(4) Keep bus lead from term. 1of S1 -S2 to L1 -L2 as short as possible. (5) Bus lead from Ll to C3 -C4 should be 31/4 inches long and dressed above bus lead from antenna coil to range switch. (6) Keep C6, C9, C10, and C12 so that br

17、oad side in per- pendicular to chassis and keep their leads as short as pos- sible.(7) Power cord should be dressed over C27 and under bus from C32 to SG of tube 5.(8) C26 from dummy term. of tube 4 must be grounded to end lug of R-17. (9) Keep green lead from term. E of 2nd i-f trans. to term. 2 of

18、 phono. board as short as possible.(10) Keep bus lead from term. 10 of S1 -S2 to L6 -L8 as short as possible. When necessary to replace bus leads, use only wire having same diameter as original. Radiotron Cathode Current Readings Measured with Milliammeter Connected at Tube Socket Cathode Terminals

19、Under Conditions Similar to Those of Voltage Measurements ( 1 )RCA -6A8 -1st Det.-Osc 14.ma. (2)RCA-6K7-I-F Amp 8.5ma. (3)RCA -6H6 -2nd Det. and A.V C (4)RCA-6F5-Audio Driver 0.26 ma. (5)RCA-6F6-Power Amplifier 37.ma. (6)RCA-5W4-Rectifier63. ma.* (7)RCA-6G5-Tuning Tube1.2ma. * Cannot be measured ats

20、ocket. 收音机爱 好者资料库 RadioFans.CN ANT. TERM. BRO. 6 CONNECT LINK TO TERM .A IF INTERFERENCE. FROM STRONG LOCAL BROADCASTING STATION IS ENCOUNTERED. LIBL1 LIC2CSpi. D ET. gf OSC. / 6.5n.04, 4.7MME, 470MME6A8 .) ,. ._- C.11 c3 -11 . , ,.2-15 F. Ci B MM 400 MMF. MOVABLE SEGMENT1 (ROTOR) C33 150 MMF. eN o.

21、zs C4 A 11-490 1 L3 PAW. 36 RI 33,000A C6 56 MMF. A - PR . L4 42.n. RANGE SELECTOR SHOWN IN A BAND POSITION. CT ROTATE. KNOB CLOCKWISE 2-10 FOR BC- BANDS . MMF. SWITCH PROGRESSES IN THIS DIRECTION C11 3-30 MMF. MOVABLE SEGMENTS (ROTOR) C890 MMF. P-84044 -O cis_L 110 a R3 470,000 Cs 3600 MMF 7.2n 7.2

22、n _LC17 R4 .124 5600n. CIS - BLAci4. II- -11-* .,. . BLACK-OREEN TR,_ -3V. I16.4V. r 1sAv.1- C31 255V. 1 L _ 1A.0 I I 1344V. -16.6V. 1 i ft ttt * (-3v*) 170V - 255V. 1 1 I I1-1 -0IV I(111 I I 1 6.4V. I I I I-1SV. 43 A. C -3V. 1105V.1(04D el 1L LI-00 o.3_ C32 !-255V. c.C7 1sT. DET. 8/ DSc. 6A8 200V.-

23、 - BLACK -BROWN TR7 OUTPUT L TERM. BRO. A.0 -1W 14.- 2.! - I 6F6(-16.6V11II -0.4V. II230V. BOTTOM VIEW-REAROFCHRSSIS251V4 PR I. A0.1. I. R 614.7 C.G. RR I. ADJ. TERM. (-303v. C.G.I6 F- A4.11_ t AUDIO 80V. f 6F5 I-0t.1V. -Radiotron Socket Voltages, Coil, and Trimmer Locations (Models 86E, 86K, 86K7,

24、and 87K) - 3V. 1 15T.I.F. TRANS 6.4V. A.C. a_ 105V. - - TRAN SF. (-0.3V.1 -0 V. - Vo.DET. 6H6 -3V. IP-64104-0 200V. cis TUNING TUBE CABLE ,BLACH-BROWNTRn( 51-C2.14 87T ONLY) -0.4V. iI- 1ci 0I.0I.F. _L5AV 4.,15(V81A7 .C-1 I A.C. ra co1.,ii 29.F.TRANSF. r 255V.-i I . -16.6V. C31 , I1 _._, E / us -f,cr

25、m, r0I ,I 6AV.0rh, 772Y DIST 7 I I- i I- -,-,6,-,:cs; ZNI2.06ii III PK:1 ) 6A4:CI: A.C. -3V - E.1*05Y1 1.3V.7.11 4.A.v.c. -3V. AD.i.L - -I 1r BOTTOM VIEW -REAR OF CHASSIS t 0.1V.6H6 i BRD itII I TERM30V. i.:3V.,-:, J.1 C.G. II t UNIVERSAL TRANSFORMER CONNECTIONS ii -GREEN - RECT. G. GREEN - BROWN -

26、+ 350V.344V, 114.Crig raer+A.C. -411I0V, _3v.75V RE!- 255V. A.C.etr CD 5rj 0 (-16.6V.*) -344V; OUTPUT 6F6 _012V.*) AUDIO 80V.1 EFS RECT PLATE 600, BLACK BROWN - BROWN - BLUE - AEAP r.L, 151. DET. 4,0SC. 6A8 -170V.- isT.I.E TRANSF. M-81833-0 -Radiotron Socket Voltages, Coil, and Trimmer Locations (Mo

27、dels 86T, 86T1, and 87T) Note: Two voltage values are shown for some read- Measured at 115 volts, 60 -cycle supply- ings. The value shown in parentheses with asterisk (*)-Tuned toapproximately 1,000 kc (Standard Broadcast) - indicates operating conditions without voltmeter loading.No signal being re

28、ceived -Volume control minimum PAGE 350-B 86E, 86K, 86K7, 86T, 86T1, 87K & 87T REPLACEMENT PARTS Insist on genuine factory -tested parts, which are readily identified andmay be purchased from authorized dealers. STOCK No. DESCRIPTION STOCK No. DESCRIPTION RECEIVER ASSEMBLIES 14284Resistor -22,000 Oh

29、ms, Carbon type, 1,10 watt (R7) 11400Resistor -27,000 Ohms, Carbon type, 1 Watt (R10), for 14380Arm -Band indicator operating arm and hub -less set Models 86E, 86K, 86K7, and 87K only screw, Stock No. 14350 14390Resistor -27,000 Ohms, Carbon type, 1/10 Watt (R10), 12038Band -Rubber band for tuning t

30、ube for Models 86T, 86T1, and 87T only 14384BeltVariable condenser drive belt for Models 86E, 86K, 13735Resistor -33,000 Ohms, Carbon type, 1 Watt (R1) 86K7, and 87K only 11365Resistor -82,000 Ohms, Carbon type, Watt (R13) 14388Belt -Variable condenser drivebeltforModels86T, 5145Resistor -100,000 Oh

31、ms, Carbon type,I Watt (R11) 86T1, and 87T only 11398Resistor -220,000 Ohms, Carbon type, 1/10 Watt (R8) 14378Board -Antenna and ground terminal board 11453Resistor -270,000 Ohms, Carbon type, 1/10 Watt (R12) 12717Board -Phonograph terminal board 13005Resistor -390,000 Ohms, Carbon type, 1/10 Watt (

32、R14) 14338Bushing -Variable condenser mounting bushing and screw 11452Resistor -470,000 Ohms, Carbon type, 1/10 Watt (R3) assembly 12013Resistor -1 Megohm, Carbon type, 1/10 Watt (R19), 14394Cable -Tuning tubecableandsocket, complete,for for Models 87K and 87T only Models 87T and 87K only 11626Resis

33、tor -2.2 Megohm, Carbon type,1. Watt (R6, R18) 12607 12581 Cap -First I.F. transformer sh eld top Cap -Second I.F. transformer shield top 12004 (R18 used in Models 87K and 87T only) Resistor -Voltage dividerresistor -comprising one 216- 11350Cap -Grid contact cap ohm,one27 -ohm,and one22 -ohm sectio

34、ns(R15, 14383 14392 Capacitor -Adjustable dual trimmer (C11, C13) Capacitor -4.7 Mmfd. (C2) 14350 R16, R17) Screw -No. 8-32 x 3/16 square -head set -screw forgear, 12723Capacitor -56 Mmfd. (C6) Stock No. 30085, and drum, Stock No. 14345, and 14262 12404 Capacitor -110 Mmfd. (C15, C16) Capacitor -120

35、 Mmfd. (C20. C21) arm, Stock No. 14380 12725Capacitor -150 Mmfd. (C33) 14374Shield -Antenna coil shield 12406Capacitor -180 Mmfd. (C22) 12008Shield -First or Second I -F transformer shield 13052Capacitor -470 Mmfd. (C5)14375Shield -Oscillator coil sh:eld 14391Capacitor -600 Mmfd. (C12) 14114Socket -

36、Dial lamp socket 12811Capacitor -3,600 Mmfd. (C9, C10)11195Socket -5 -contact 5W4 Radiotron socket 5005Capac.tor-.0035Mfd. (C29)(UsedinModels86T, 86T1, and 87T only) 11196Socket -8 -contact 6A8, 6K7, 61-16, 6F5, or 6F6 Radio - trop socket 4838 Capacitor -.005 Mfd. (C34) (Used in Models 86E, 86K, 86K

37、7 and 87K only) 12007Spring -Retaining springforcore, StockNos. 12006 and 12800 4868Capacitor -.005 Mfd. (C14)12907 Spring -Tension spring for indicator drive gear,Stock 13138Capacitor -.-01 Mfd. (C27) No. 30085 14393Capacitor -.01 Mfd. (C24, C25) (C25, .01Mfd. used14342Spring -Tension spring for id

38、ler, Stock No. 14341 inModels 86K, 86K7, 86T, 86T1, 87K, and 87T only) 14370Switch -Range switch (S1, S2) 11315 11451 Capacitor -.015 Mfd. (C25) (for Model 86E only) Capacitor -.017 Mfd. (C30) 14371 14378 Switch -Tone control switch and power switch (S3, S4) Transformer -FirstI -Ftransformer(L11, L1

39、2,C16, 4870Capacitor -.025 Mfd. (C35) (Used in Models 87K and C16) 87T only) 14283Transformer -Second I -F transformer (L13, L14, C20, 4841Capacitor -0.1 Mfd. (C19, C23, C28) C21, C22, R7, R8) 4840Capacitor -0.25 Mfd. (C26) 14367Transformer -Power transformer, 105.125volts, 50-60 cycles (T1) 5170 11

40、240 5212 Capacitor -0.25 Mfd. (C17) Capacitor -10 Mfd, (C31) Capacitor -16 Mfd. (C32) 14368Transfo (Ti)mer-Power transformer,105-125volts,25-60 cycles 14377Capacitor -16 Mfd. (C18)(Models 86K, 86K7, 86T, 14369 Transtormer-Power transformer, 105-125/210-250 volts, 50-60 cycles (Ti) 86T1, 87K, and 87T

41、 only) 13838Trap -Wave trap, complete (L18, Cl) 30105Capacitor -16 Mfd. (C18) (Model 86E only) 14335Volume Control (R9) 14372 14373 Coil -Antenna coil and shield (L1, L2, L3, L4) Coil -Oscillator coil and shield(L5, L6, L7, L8, L9, 14379Washer -Felt washer for indicator pointer L10) REPRODUCER ASSEM

42、BLIES 14363Condenser -2 -gang variable tuning condenser (C3, C4, C7, C8) Models 86T, 86T1, and 87T 5119Connector -3 -contactfemaleconnector forreproducer 14616Coil -Field coil(L17)(for speaker marked 84001-3) cable 14614Cone -Reproducercone (L16)(forspeakermarked 12800Core -Adjustable core and stud

43、assembly for coil,Stock 84001-3) No. 14373 14934Cone -Reproducercone (L15)(forspeakermarked 12006Core -Adjustable core and stud for Stock Nos. 14376 84001-6) and 14283 5118Plug -3 -contact male plug for reproducer 14385Dial -Band indicatordialand mountingbracketas- 14613Reproducer -Complete sembly f

44、or Models 86K, 86K7, and 87K only 14615Transformer -Output transformer(T2)(forspeaker 30106 Dial -Band indicator dial and mounting bracket assembly marked 84001-3) for Model 86E only 14935Transformer -Output transformer(T2)(forspeaker 14389Dial -Band indicatordial andmountingbracketas- sembly for Mo

45、dels 86T, 86T1, and 87T only marked 84001-6) 14381 14386 Dial -Station selectordialscale for Models 86E, 86K, 86K7, 86T, and 86T1 only Dial -Station selectordial,complete, with tuning tube REPRODUCER ASSEMBLIES Models 86E, 86K, 8610, and 87K (RL-70E-1) escutcheon assembly for Models 87K and 87T only

46、 13868Cap -Dust cap for cone center 14364 Drive -Variable condenser vernier drive pinion gear and 14354Cod -Field coil (L17) shaft 11469Coil -Hum neutralizing coil (L18) 14345Drum -Variable condenser drivebeltdrum,complete, 12687 Cone -Reproducer cone and dust cap (L15) with set screws 5118Plug -3 -

47、contact male plug for reproducer 14387Escutcheon -Tuning tube escutcheon for Models 87K and14395Reproducer -Reproducer complete 87T only 14358 Screw -Screw, washer, and lockwasher to hold core in 11982Fastener -Station selector dial scale fasteneryoke 30085Gear -Indicator drive gear and hub assembly

48、 and indi-14355Transformer -Output transformer (T2) cator pointer stem and gear 14357 Washer -Spring washer to hold field coil 14341Idler -Station selector drive belt idler 14344Indicator -Station selector indicator pointerMISCELLANEOUS ASSEMBLIES 14382Indicator -Vernier indicator pointer 6228Lamp -

49、Dial iamp 14396 Escutcheon -Station selector escutcheon and crystal 14340Pulley -Station selector drive belt pulley and knob shaft14359Knob -Station selector knob 14361Reflector -Dial reflector and lamp bracket assembly for 14269 Knob -Volume control, tone control or range switch knob Models 88E, 88K, 86K7, 88T, and 86T1 only 4560 Screw -Chassis mounting screw and washer assembly - 14382Retiector-Dial reflector, Lamp bracket and tuning tube(Model 86E only) bracket assembly for Models 87K and 87T only 11210 Screw -Chassis mountin