RCA-Victor-Co-Inc-9K2 电路原理图.pdf

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1、PAGE 1 7 9-5 MODELS9T, 9K2, 9K10,9U 8. 9U2 Nine -Tube, Five -Band, A -C Superheterodyne Receivers andRadio -Phonographs SEE INDEX LISTING MAGIC BRAIN FOR ADDITIONAL DATA. Radiotron Cathode Current Readings Measured with Milliammeter Connected at Tube Socket Cathode Terminal under Conditions Similar

2、to Those of Voltage Measurements (1) RCA -6K7 -R -F8 0 ma. (2) RCA -6L7 -1st Det.4 4 ma. (3) RCA -6J7 -Osc.6 7 ma. ( 4) RCA -6K7 -IF.8 0 ma. (5) RCA -6H6 -2nd Det.-A.V.C- (6) RCA -6F5 -A.F.0.3 ma, (7) RCA -6L6 -Power63 ma. (8) RCA -6E5 -Eye3 0 ma. (9) RCA -5Z4 -Rect.110 ma. * * Cannot be measured at

3、 socket contact) FREQUENCY RANGES Long Wave (X)150.410 kc Standard Broadcast (A)530.1,800 kc Medium Wave (B).1,800.6,400 kc Short Wave (C)6,400.23,000 kc Ultra Short Wave (D)23,000.60,000 kc Intermediate Frequency RADIOTRON COMPLEMENT (1) RCA -6K7R -F Amplifier (2) RCA -6L7First Detector (3) RCA -6J

4、7Oscillator (4) RCA -6K7I -F Amplifier PILOT LAMPS Model 9U #(4) (3) Model 9U2 POWER Rating Rating Rating Rating Rating Rating Rating Rating PHONOGRAPH Type SUPPLY RATINGS A 105.125 volts, 50.60 cycles, 120watts 105.125 volts, 25.60 cycles, 120 watts 100.130/140-160/195-250 volts, 40.60 cycles, 120

5、watts A-6 (Model 9U only) 105.125 volts, 60 cycles, 150 watts A-5 (Model 9U only) 105.125 volts, 50 cycles, 155 watts B-2 105.125 volts, 25 cycles, 150 watts 105.130/140-160/200-250 volts, 60 cycles, 150 watts C-5. 105.130/140-160/200-250 volts, 50 cycles, 155 watts Bmopga.s 9T, .9 PC 2 41i 91(10 Ph

6、ono compartment Mazda No. 40, 6.3 volts, 0.15 ampere Receiver. Mazda No. 46, 6.3 volts, 0.25 ampere Phono compartment, indicator, lower right-hand front of tuning dial, Mazda No. 40, 6.3 volts, 0.15 ampere Upper left-, lower left-, upper right-hand front of tuning dial, Mazda No. 46, 6.3 volts, 0.2S

7、 ampere C,6. MODELS 90 8.902 (3) R IC7 POWER .560,000. TUNING TUBE OUTPUT 8 4 I.F. BAWL2rici DET,CA.V.C. -Radiotron and I -F Trimmer Locations Electrical Specifications ALIGNMENT FREQUENCIES Long Wave (X). 175 kc (osc.), 350 kc (osc., det., ant.) Standard Broadcast (A) 600 kc (osc.), 1,500 kc Medium

8、 Wave(B) .6,000 kc Short Wave (C).20,000 kc Ultra Short Wave (D). 57,000 kc (osc., det., ant.) (osc., det., ant.) (osc., det., ant.) (osc., det., ant.) 460 kc (5) RCA -6H6Second Detector and A.V.C. (6) RCA -6F5Audio Voltage Amplifier (7) RCA -6L6 Power Output (8) RCA -6E5Tuning Tube (9) RCA -5Z4.Ful

9、l -Wave Rectifier Moms, 91.)a 9t/2 Automatic Record Ejector Record CapacitySeven 10 -inch or Six 12 -inch Turntable Speed78 R.P.M. Type of PickupLow -Impedance Magnetic Pickup Impedance8.5 ohms at 1,000 cycles POWER OUTPUT RATINGS Undistorted Maximum LOUDSPEAKER Type. Impedance (V.0 ) 5 watts 9 watt

10、s Electrodynamic 2.2 ohms at 400 cycles RCAVICTOR DIVISION OF RADIO CORPORATION OFAMERICA, CAMDEN NJ US A 收音机爱 好者资料库 RadioFans.CN PAGE80-B 9T, 9K2, 9K10, 9U biriNFILEg TO0.5 BROWN BROWN BLACK BROWN sot - m. POAPO . BLACK -Loudspeaker Wiring 457.,CABLE wow.- RUT WIN - -BACK POWER TRANSFORMER BROWN LL

11、OW GREEN TUNING TUBE GrES RES IMES. 收音机爱 好者资料库 RadioFans.CN Cl 1150 56 MMF. C7 -55o MMF C6 2-12 MMF RF 6117 56.000 1.17 0.32a C30= A LAT, R2 60a r - L R44 220,000 DET 61.7 I1241Iv Ii C44 56 MMF R9 56,000n. C31- 7 01 M O C32 0 11-490 NINIF 1000A R3 L21 114 2 20 mielF NiroWO 6.7115_248 C34 494 C38 311

12、1135 .0053- L LF 6K7 PHONO BRO. 8.26 27 RI I 2.2 MEN - C51 01 MVO= IMMO 2.1.DET 4. A VC 6116 R2012,1E6 2 5 SECT 180 pI TOTAL :7 SOO SECT -62MMF E35-2-emw 1C39 ICIR-e904 2-2O MMF CI3 pp 07,. 5PA OSC. L23 IMMF cC20 TTT1120 6.17 1 ISO MMF 3 Rt0n. C L8 -0.36.T 12-12 -etsB C21 mmE .1_555mMF C22 CIS 1,-1-

13、180 WOW2.12 MMF 11 X C18 1617 _ 2-20MMF 156 1461F - C19 450041MF 2-20 MME T 4. C27 11-490 MME .L1 2 20 MtAiMAGIC BRAIN UNIT - - C25 Izo nm- RS .1_ C213 120 MMF L11,12 -LE /114DucTiveLy GOUPLE-0 C40 1 3614MF RANGE SWITCH SHOWN IN X POSITION * ROTATES CLOCKWISE RIO 10,000. .AnAN, 66,5.14 POWER ,SWITCH

14、 1.30-700,. -. C66 30 MFD. - C65 30 MFG,. RECT 5Z4 NUMERALS SHOWN ALONG THIS BRAKE SW.TOGGLE SW. LINE IRO CATE CONTACT NUMBERS -1 ON MAGIC BRAIN PLUG. MODELS 9T, 9K2 AND 9Kio. C63 is 0.01 mfd, C7 9,R44 and 56 omitted ,-)n some models a 270,000 ohm resistor is connec- ted between armand low end of vo

15、lume control, not required when replacing volume control with Stock No. 12861. -Schematic Circuit Diagram .015 MFD C57 0.1 MFD 1 music 7,000A 1ST AUDIO 6F5 C.5 0.25 - MFD 271, R23 470,000A. MUSIC -SPEECH CONTROL N 54 SHAFT/ SERVICE HINTS (1) Excessive heating ofthe 6E5 tube may be due to high cathod

16、e current-in excel).of7 ma.The tube should be replaced and the condition of the 5Z4 rectifier checked. (2) Low sensitivity or intermittent operation may be caused by C.43 or C-33 developing low -resistance leakage. Check both capacitors and replace if found defective. (3) Low sensitivity around 15-1

17、6 megacycles may be caused by dirty or poor contact of grounding contact finger on S-3. C6I 20 MFD R 2S 1 MEG. OUTPUT 61.6 C63 005MFD H.F. TONE C62-L. CONTROL .05 wiri3,_RZ7-100,o00, 72 Fro. 0 1BA LOB 1.94 CLOSE FOR PFIONCe., VOL. 840O, NT 1L44- _135 9 2S25,0001 251? 40,000114.3 R4I TOTAL A. 1777,.-

18、1R43 =17,1C81-ce2 50711 4400.15 /10.000000 ,y-weruT_TRRNS PACK MFD.: j C80 NOTE, .05 MFD. RRRFOV GONTLICTS PORI RADIO STRAYING WINDING 40- -644a. ce3 .50-.60- 2 INFO. MFD.25 TAPEDTi RED - GREEN RED - YELLOW IME. 7.6A D R4 73 PICKUP L42 RUNNING WINDING ROT, -TRIM - 144 A. T-10e3R- - 1 R6 R5 RID I ).

19、TT - S4 CONNECTIONS FOR 25T- ONLY 2 ;I C33v- Ntsl 收音机爱 好者资料库 RadioFans.CN PAGE 182-B 9T, 9K2, 9K10, 9U 8L 9U2 PICK-UP CABLE I. PICK-UP L42 SHIELD I XX BROWN BLACK IsR CAPACITOR Ca COMPT LAMP -SHIELDR39 BLUE 125.000h VOLUME CONTROL vc;HIELD HITE GREEN BLACK BROWN LUE EN C84 .05MFD. SHIELD EXT. YELLOW

20、 GREEN I -RED I -BLACK S6 s. BRRKEs, SWITCH, BROWN BLACKS IELD BROWNY L OW SPEAKER CABLE NN YELLOW MOTOR BOARD TUNING TUBE ED GREEN BLACK RECEIVER SPEAKER BLUE SHIELD EXT TRANSFORMER 230 PACKPOWER DI -Assembly WiringMODELS 9U9U2 YELLOW GREEN RED YELLOWTOGGLE SWITCH BLACKSi BOTTOM VIEW If greater vol

21、ume output from low, levelrecordingsisdesired.R-42 should bereplacedwitha10,000. ohm resistor.This resistoris located intheinput transformer pack and will necessitate removal of cover for access.This change isincorporated on some instruments. L44L43 SOOft5000. 120008. CalR40 .0298F10.000.8 C80 .05MF

22、0. GREEN YELLOWBLUE INPUT TRANSFORMER GREEN WHITE BLUE PACK CONNECTIONS INPUT SEE INDEX FOR SERVICE DATA ON AUTOMATIC RECORD CHANGER PAGE 483-B 9T, 9K2, 9K10, 9U 84 9U2 Oy.nay.; TRANS.2 94v. C.O. 7-2 g0 L26 a._ _1 ata*60.1CC APpj41 -3V. GA WS.; E9U-Y ONLY TRAN5A,: I PRI. ADJ. Say. 460 K.C. 94V. 270V

23、. 2613V- .168.2Vv*-SOCK ET4. A.C. AUDIO 7 6%5_1269V. 60061/Z.t. 6815vs) I 25V -0.2V. _1 G.4 OUTPUTFA.V.- 6L6-T-1 5.7V. 1-111 V OBiBV 255V. CATHODE RAYTHIS TERMINAL :/4oVouND. E0.3v.a) -0,4v. 26!y_. GA 41 cv 2.0E7. EL. 4;,CAP. :.-,4A.V.C. E.74DTergrgOO Ir 61-16 27OV.- r -.1TERM. L6.4V._ JBRD. A.C. L_

24、 -0.3V. OS C. Iv 6J 7- DET 6L7 -269v. - 6A 66V. L_ 6K7).- R.E 7el , 0 / 4.v. T,.!c.G, ILs.L.V ij., L6A V. -AC,(1341.! OETCOIL1 IC G 0 V. 41.4V. A.C. i2SC oa -IV. (-4) -19V. ANT COIL WAVE TRAP IBOTTOM FRONT OF CHASSIS 9.0V. A.C.r E 348V. 1 _310v. yA.C. /320CV, RECT. 5Z4 -Radiotron Socket Voltages, Co

25、il, and I -F Trimmer Locations Measured at 115 volts, 60 -cycle supply-Tuned to approximately 1,000 kc-No signal being received- Radio volume control counter-clockwise-Phon o volume control extreme counter-clockwise- Other controls optional Note: Two voltage values are shown for some read- ings. The

26、 value shown in parenthesis with asterisk (A) indicates operating conditions without voltmeter loading. REPLACEMENT P ARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers. STOCK No. DESCRIPTION LISTSTOC K No. DESCRIPTION LIST RECEIVER

27、 ASSEMBLIES 12467Capacitor -30 Mfd. (C65, C66) 5119Connector -3 -contactfemaleconnector 12863Board -4 contact and 2 link phonograph for speaker leads terminal board 4573Connector -2 -contact female connector for 4427Bracket-Mounting bracket for H.F. tone motor cable (Chassis End) control,L.F.tonecon

28、trolor volume control 11488Connector -2 -contact female connector for phonograph compartment lampcable 12867Cable-Tuning lamp cable and socket (Chassis End) 13230Cable -2 conductor compartment and pilot lamp cable (chassis end) approx. 34 -in. 12006Core-Adjustable core and stud for Stock No. 12652 a

29、nd 12653 long complete withtwofemalecon- 12870Dial-Vernier dial and disc assembly nectors Stock No. 11488-Model 9U2 only 4340Lamp-Dial lamp6.3volt, lower R.H. socket Model 9U2 only-Package of 5 12511Cap-Grid contact cap-Package of5 . a5226Lamp-Dial lamp, 6.3 volt-Package of 5 12859Capacitor Pack-Com

30、prising two sections .015Mfd., one section.1Mfd., and 12868Link-Range switch and band indicator operating link complete with set screw. two resistors 27,000 ohms each (C55, 12871Reactor-Filter reactor (L31) C56, C57, R21, R22) 12865Resistor-Voltage dividerresistor-Corn 12873Capacitor Pack-Comprising

31、 one 3Mfd. and one 20 Mfd. section usedin25 cycle Model only (C61, C69) prising one section 250 ohm, one section 17 ohm, and one section 11 ohm (R17, R18, R26) 12724Capacitor -120 Mmfd. (C59) 12876Resistor -10,000 ohms-wire wound -10 12404Capacitor -120 Mmfd. (C45, C46, C49, watt (R10) C50) 12864Res

32、istor - 17,000ohms - wirewound 12406Capacitor -180 Mmfd. (C52) (R19) 4838Capacitor-.005 Mfd. (C63, C79) 11282Resistor -56,000ohms-carbontype - 4624Capacitor-.01 Mfd. (C51) 1/10 watt (R12)-Package of 5 4858Capacitor-.01 Mfd. (C60) 12875Resistor -56,000 ohms-carbontype -1 4836Capacitor-.05 Mfd. (C53)

33、watt (R16)-Package of 5 4886Capacitor-.05 Mfd. (C62) 12264Resistor -220,000 ohms - insulated -1/4 4841Capacitor -0.1 Mfd. (C54) watt (R44)-Package of 5 11414Capacitor -0.1 Mfd. (C47) 11398Resistor -220,000 ohms-carbontype - 4840Capacitor-.25 Mfd. (C58) 1/10 watt (R13)-Package of 5 5170Capacitor-.25

34、Mfd. (C48, C68) 11453Resistor -270,000 ohms -carbontype - 12741Capacitor -0.5 Mfd. (C64) 1/10 watt (R24)-.Package of 5 5212Capacitor -18 Mid. (C67) 11172Resistor -470,000 ohms-carbon type-I/4 12872Capacitor -20 Mfd. (C61) watt (R23)-Package of 5 PAGE 184-B 9T, 9K2, 9K10, 9U 105.125 11397 Resistor -5

35、60,000 ohms -carbon type, 1/10 watt (R1, R7) volt, 50.60 cycle (Ti) 12651 Sh eld-Coil shield for Stock Nos. 12879, 125180 12857Transformer -Power transformer, 105.125 12710Shield -Coil shield for Stock No. 12709 volt, 25 cycle (T1) 12883Shield -Coil shield for Stock No. 12881 12858Transformer -Power

36、 transformer, 100.250 11198Socket -7 -contact 6K7 Radiotron socket11279 Socket -7 -contact 6L7 Radiotron socket volt, 50.60 cycle (T1) 12885Socket -8 -contact 6J7 Radiotron socket 12861Volume Control -(R20)12007Spring -Retaining springforcore,Stock Nos. 12664, 12800, 12882 12878 Switch -Range switch

37、 and mounting nut (S1, S2, S3) 12654Trap -Wave -trap, complete (L1) ADDITIONAL PARTSREPRODUCER ASSEMBLIES MODELS 9T. 9K2 AND 9K10. 12914Board - 3 -contact reproducerterminal board 12640Bracket -Output transformermounting 4937Capacitor - 0.01 mfd (C63).bracket and clamp assembly 12866Foot - Chassis m

38、ounting bracket and foot as - sembly. 12912 12642 Coil -Field coil (L30) Cone -Reproducer coneand dust -cap (L28) (Model 9T) 12862 Tone control - H -F tone control (R27)12667Cone -Reproducer cone anddustcap (L28)(Model 91(2) Stock No, s4838 Capacitor(C63, C79),4573 Connec-5118Plug -3 -contact male r

39、eproducer plug. . . tor, 11488 Connector, 12284 Resistor (R44) and 134689714 Reproducer Complete -(Model 9T ). . . Tone control(R27,56)usedin models 9U and 9U2 9716Reproducer Complete -(Model 9K2). . . only. 12913Transformer -Output transformer ( T2) 11886 Washer -Spring washer to hold field coil se

40、curely -Package of 5 REPRODUCERS OF MODELS 9K2 9K10, 9U AND 9112 ARE IDENTICAL PAGE 185-B 9T, 9K2, 9K10, 9U C:10 2 20 WIMP rWANT TRAP Fr2 MMF. C35 TOMMF. C36 COMM!. C39 220 MME 0 CI6 2-1Z MMF C15 SOMME. CSC. COIL A,B.C C36 2-20 MMI. 0C37 ANT. COIL X.A11,C BOTTOM FRONT OF CHASSIS BOTTOM TE.RM TOP 716

41、8 BOTTOM TERM. Magic Brain Wiring Diagram TOP TERM. BOTTOM TERM. TOOTER BOTTOM TERM. DET. COIL CONNECTIONS C2 5616MT T-70 564 - OSC. COIL CONNECTIONS ANT. COIL. CONNECTIONS RCA VICTOR DivISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. PAGE 250-B MAGIC BRAI N /) X C3tM Xa0CS AILITC 6C00

42、0ArC C3 ANT 20000 R C 5-57, 11C1)0APC Boy, Of 0,40515 (f, Krew) POWER OUTPUT ANT. COIL D r0 1017( C - -.c-42,$)g7c 3341P, C23 01CC13 OSEC14 05COR MC 57,000 AC20000 K.C.6000 R C 1500 R. C A. APPROA INSTANCE IN MORS-CHASSIS AAst TO TOR OP TRIMMER PitiNCIR 11, C Ti I Ye Ivo14 .04 IV* lato. L9 AC 600C O

43、St. 17K.C. C113 350 R.0 -Magic Brain. Trimmer Locations R1C7 MOAN96o 24093 (1) 6F5 AUDIO tsJ- I.E. TRANS SEC. ADO. 4 tc R. E AM PL 6K 560 PIMP. I.F. KC 6K1 S O R7 ist DET 2 ii . . ,),Ja oi ,.,w .,14,. ,. 0, OA 0 611 fill C25 0 0 0 0 0 0 0, el 54 SWIM 0 0 01 7 b 0,0 CLOODO, o 0,O 9,O oON 611 SRA OSC.

44、 TUNING TUBE a RECT. O SEC AMPL.22_4 DEL L A.V.C. SA -670 Radiotron and I -F Trimmer Locations MODELS 9T, 9K2, 9U, 9U2 & 9K10 RI S60.000. 24094 POWER c-% TU6E Mr - OUTPUT R.F AMP If / Ey Mr/ 6F5 t 120 MUNE !I AUDIO SEC. 003. L2S 460 IC I.F. TRAMP.IfineL.LETRANSFDITAAV.0 SE0 AD.1.SEC. LIDLSO 460 IR.C

45、.460 P.C. 9 RECT Radiotron and I -F Trimmer Locations MODELS 10T, 10K, 10K 1,10711 & 10 K 11 1-27 4 5 7 OWEA 0*/ SEC. AC, Ag:C F ANIPL 6E5 oTT:TiCT1. 0 0 TT 0 0 0 00 - 81(5 Fr16- yAvc 0000 i.trAMPL, SEC AC,SEC .z.gc MODEL 13K -Radiotron and I -F Trimmer Locations BM1,40,4 NIL All N SiL AilME AM16586

46、1.7100.86TOLAli LT5LOSLSO433IT IRON 440 5041410400 004405 SEC ADJ LES 460C MODEL 15 K -Radiotron and I -F Trimmer Locations RI 560.000, C42 560MM R7 60000., jS12 OET TUNING TIM R4 56.000 SEC AID SEC MU L27 460 K C460 K C MODEL 15U IST. A 010 I -F ALIGNMENT 9K2, 9K10,9T, 9U and 91I2 STEP CONNECT HIGH

47、 SIDE OF TEST OSC. TO - TUNE TEST OSC TO - TURN RADIO DIAL TO ADJUST THE FOLLOWING FOR MAX.OUTPUT 1 I -F Grid in series with 0.01 mfd 460 Kc Quiet point near 600 Kc A BandLl L27L26 2nd I -F Trans. 2 1st Det. Grid in series with 0 .01mfd L25L24 1stI -F Trans. 3 Antenna in series with 2C0 mmfd Wave Tr

48、ap Minimum Output I -F ALIGNMENT 15U STEP CONNECT HIGH SIDE OF TEST OSC. TO - TUNE TESTOSC TO - TURN RADIO DIAL TO ADJUST THE FOLLOWING FOR MAX. OUTPUT 1 2nd I -F Grid In series with 0.0 imfd 460 Kc C8.ilet point near 800 Kc A Band L29L28 3rd I -F Trans. 2 1st I -F Grid in series with 0.0imfd L27L28

49、 2ndI -F Trans. 3 1st Det. Grid in series with 0.0 imfd L25L24 1st I -F Trans. 4 Antenna In series with 200 mmfd LlWave Trap Minimum Output AMMILIEM. ,MIONII ANNIMIN MUM ANNIMM INIMMENFAIMMIMMININ smimmwlmommmAmmmi sinimmummmi sommummor INNINIMMINNINMEMMIr IMIUMINIMMIUMMY OMMEMMUININIMW MNINIMMINNINNIV 111920111, AMINIMMIM, AMIIMPERINIMINIM. ANNININW/Aki UNE& /UMW/ A1,111IMMNI /MMUMAININVINIMNINM. MINNOMUMMLI UMW INNEMPANININIMrliMMIN ommuMoNMENmmmor INEMMININMININIMIHNI MIMMINNIMNIMIMMININ UMMINOMMINNIM