RCA-Victor-Co-Inc-9K3 电路原理图.pdf

《RCA-Victor-Co-Inc-9K3 电路原理图.pdf》由会员分享，可在线阅读，更多相关《RCA-Victor-Co-Inc-9K3 电路原理图.pdf（13页珍藏版）》请在收音机爱好者资料库上搜索。

1、PAGE 17 2- B MODELS 9K1 and 9K3 Nine -Tube, Three -Band, A -C, Superheterodyne Receivers 1111F TRY Model Yis.1 (26 4061111, 0.4 910.000A OSC. Radiotron and I -F Trimmer Locations FREQUENCY RANGES Standard Broadcast (A) Medium Wave (B) Short Wave (C) Radiotron Cathode Current Readings ConnectedatTube

2、 SocketCathodeTerminalsUnder Conditions Similar to Those of Voltage Measurements 9K19K3 (1)RCA-6K7-R-F Amp. 7.57.5ma. (2)RCA -6L7 -1st Det.6.4 7.2ma. (3)RCA-6J7-0sc.5.4 6.3ma. (4)RCA-6K7-J-F Amp. 7.57.5ma. (5)RCA -6H6 -2nd Det. Aim F C TA-IrIOMMF 4- R1 560, 0 0 0A LI 13n. 6 tk. 11OWN IN STANDARD RAN

3、GE SELECTOR C2 BROADCAST POSITION) 56 MMF. = CS 2-12 MME L9 fO.04 L10C LII C26 560 MMF. I AT DET.I. F. 6L7 osn L1 2s A 8.57o 490 C25 1-490 -R4 560,000e. - L13 C23 i 11 PRi 560MMR-1 S3 .ii.3 C22- -= 15MME *.- C2400% .01 MFD. C28 120 MMF. - C21 i_41e=_2-12 MMF 8 AAz-emmr. IY-2 CIS 2-12 MMF A 4 ae 61(7

4、 04L15 8.6n 8.6n C30 0.I MFD. Re 22,000a. C29 20 MMF. C32 120 MMF O 14. 6V 120 2.0. DET. 8, A.V. C., LINKS CLOSED 6H6 FOR RADIO 41321 ww C36 MFD C34 180MM C R1 - Re 22ME6. 56,000a.- .1 C31 0.25 MFD. R9 220,00 RIO = MEG2.2 C35 .025 MRD.I 0.36a S2 C9 4500 MMF .07ri, 1. 17119 C .-C10 2 zomm, Cl2_ 16MMF

5、.-L74.1560 C13 2-20 - 5.In C14 555 MMF. ANT COIL CONNECTIONS, 11 A CIT 56 MMF. OSC. 6J T 3 C16 120 MMF. CIS - 11-490 MMF. R2 33,000a AS 33,000A fC R11 25MES TOTAL 25811196 SECT. 250,000n SECT. AU010 6F5 1IC42 .01 ,MFD. 0 VOL. 6 CONTROL-= IZOMMF P12 zI.R14 100027,000 n. RIS 270,000 C39 .015MFD. - C39

6、-.015100. R13 C40 - T 0., 47G000aI awn. R17 82,000a OUTPUT 6F6, C44 ., , .005 MFO. T2 .e- / L18 ( _13210. 0 1.95. g g ti?000 I a fa -I 00= RI 6 390,000a C49 / 0.1 MFO. R18 100,000n. TONE CONTROL C43 .035 MFD. C I 8 0.25 MFD. 7F Ti 7n-60 60-25, REO 10,000A. RECT. 5Z4 C4 7 30 MFD FIELD 1111150 1 L20 4

7、37n-60., 457n-25., 1290n TUNING TUBE 665 Ls F 1;14 I (0.25 C45 14 - AFb.-. MFD. -1-;4214.11122=-,=- 190n 25n.165. C48 = 0.1MFO. sel. FIL.liPIL_CIT POWER SWITCH - (ON R13 SHAFT DET. COIL CONNECTIONS05C.COIL CONNECTIONS R19 I MEG. T-70681-0 -Schematic Circuit Diagram (Model 9K1) T1 _- RED in 60, T.S.,

8、 ZS-, RED BEEN 16010w% 457.co 1100WH-DLACK - 457n 25., 1111./vr. sucK POWER TRANSF. CONNECTIONS 1140 T mos foral ,o1smro 8LAcm COMPENSATING PACK CONNECTIONS HUM NEUT. C011 L19 MODELS 911, 910. and 90 A blocking action whioh prevents reception over a section of the low - frequency end of the smile I.

9、 generally curable by replacement of the 6L7 first-deteotor tube.Should this not be effeotive, reduoe the 6J7 oeoillator grid leak from 56.000 ohms to 33,000 ohms.The 56,000 -ohm resistor of the 6L7 injector -grid circuit should also be lowered to 35,000 ohms.The value of the oscillator grid-oouplin

10、g capeoltor is very oritioal and no replacements other than stook #12724 should be used. e 0 7 (A) 收音机爱 好者资料库 RadioFans.CN 62 150 MME RANGE SELECTOR LI 130 (NEOwN IN STANDARD AROAOCAST PO5171016 CID Cl2 1/3111M1.-. CI3 2-20 S2 CO 2-mom, MEW Tall 15S0 166 MMF. 014 A 6V, .) 1-7_AC. -_J C47 RECT. 5Z4 A

11、NT I COIL (- Zy.*) r -0.3V. - tt -0.3V. 1 C.G: -4,245v II , 6.4V. -3V r-A.C.-I Ilz 1k L- C46 DET TUNING COIL - tCrgLEE f t I I I235V I I I 1 I 250V oy, 994.) 1.4V ,.c.(.00 1 I, 6.4V.L_- 11-=. -1 1Ii.- r- A.0 -1_ 0,2,v. _ - - - -. 16.4V.r-4,11.3v. - I A.I ril 111f4) Th6374,jT:R7 !(*) 1: IIrot -17V.,.

12、 1ICft.,Fi 44onc LIB ADJ. I 1 DV. 1:1 nu 1- 4,1i 250V. 2. 1 F. TRANS I OSC. I IV I16,7 i III 1 I I I II 1III, 90.41 tIt Iitttit 1 4 16.6V.-3V. t -1.2y.ft -ir BOTTOM REAR OF CHASSIS192V.200V.90V. -,-far 11 6r-er-rt- i R214400R23 1 I 1420ms I F-1440,1-0 -Radiotron Socket Voltages and 1-F Trim-mer Loca

13、tions (Model 9K1) # 4 I I 1 , I 1 .1 1 i1 1 365V. 390V 390V. A.C. 11 1, ,f -,8v. no,. L_ / 9.e10 5V I ANT COIL J.C. A.C. _I c.:443RECT.-a.V.- 524 (-2.8V.) I- - -0.3%: -0.3v.I ., C.G. 12515V. I - 6.4V 1 1376V. r- A .C. 1 1 I 1 -2.9V. IF 4. 1 0j L-C., 1 - -J !C47 R F. (-1.5V.) 6147 -4We DET TUNING TUB

14、E COIL CABLECABLE1- 1 370V I iI I260V. r- I0 V. - 6,14v.tvG5Lfr-POWER A.C.4I-7- .4,. OUTPUT L_ _J 6L6 GA- I6.3V. - - r AG AUDIOAUDIO U (1 + A)6 F5 -1V-/ RED r 260 V.-.- .ow- tr, I. F V- to.:.,ir - :r - - -1-.: -1144 TRANS -26V - -I GET. 16.4V.ELT 1 A.C. ,-T I,. _ It6OV.er 460C ) FRI20 ADJ.i+, L14 6.

15、411 A.C. -_I mADET;AVC I- ( 100V. 1FC.G7,-.t. I osc I- - F COILr-1 1 -17V u1- 6/16 G-2.8 v. L _ 0. 3,. _ - I: 6.4V 4- r A.C.- -o.zi. _. /6/4.4cv(- 1,.1 D 1 O- I I I 0 Y. i I OSC.IIC,Y. 0-2140V. , C46 II 1 ; t1i fI 4., -,.-(c, c,.ITER, I7 p -_1 arm IIlIl L 1.F. I i OV. ,0601,62. 1i:(1011V1 II t75V. I

16、44 4 4I 4104.0. PRI. ADJ. L16 1.F. TRANS. 44 .399V.3;7V. -AV.-1(.9V. BOTTOM REAR OF CHASSIS100V.150v.260V. 16.W .64 it. ft ft ft ft+ Itrt-ff1rt- pi -r4, RCA MiGCaVIC I 625424R23 R22 R2 IR20 1417 I14-44oTo-D -Radiotron Socket Voltages and 1-F Trimmer Locations (Model 9K3) Measured at 115 volts, 60 -c

17、ycle supply -Tuned to approximately 1,000 kc (Standard broadcast) - No signal being received -Volume control minimum Note:Two voltage values are shown for some read- ings.The value shown in parentheses with asterisk () indicates operating conditions without voltmeter loading. PAGE l76 -B 9K1 the bro

18、adcast in to lator servable put to that and from e are shown II111 I Alignment Procedure adjusting dial pointer toFor further mark on StandardRCA Victor tuning -condenser plates a friction adiustnient. the connections v i;101. v um. , CSANT. - ,croaookc. FIC,30 SCI LLOGRAPM i.1,g,Ccti_,:NA0,T+4,1sei

19、r terminal of the test oscil- all alignment operations. oscillator so that mini- receiver to obtain an ob- will avoid a -v -c action. means the device which high test -oscillator out- to the receiver in order signal, 550-750 kc means to a point between 550 or interference is received Nate.-The oscil

20、lator.some chassis details on alignment,referto booklet Receiver Alignment. .0 Fpal) r, - Trim OCT COIL ILI Mk OCT Ox. wTRAP 460 ICC- - /gioxil vil.gooKyj v.CIS HT. LSOOPC.C. 610K1 WIT ANT.COIL _ PHONO. Prrtf- TERM. BR 0,i, 4-,., -=DA Connect the low output to the receiver chassis for Regulate the o

21、utput of the test mum signal is applied to the output indication. This The term Dummy antenna must be connected between the and the point of connection obtain ideal alignment. No the receiver should be tuned 750 kc where no signal a station or local (heterodyne) 1) Frt Q OK COIL 14:,.T.7.1 - - s.4,0

22、 ,.COOK.,C10 OSC.-.R.0 IS CSC. - zik000k.c.6$000KI.0001k.C. Figure 5-R -F Trimmer Locations locations of C20 and C21 are interchanged on of Model 9K1. Order of Alignment Test Oscillator Receiver Dial Setting Circuit to Adjust Adjustment Symbols Adjust to Obtain Connection to Receiver Dummy Antenna F

23、requency Setting 1 61C7 I -F Grid Cap .001 Mfd. 460 kc No Signal 550-750 kc 2nd I -F Trans. L16 and L17Max. (peak) 2 6L7 Det. Grid Cap .001 MM. 460 kc No Signal 550-750 kc 1st I -F Trans. L14 and L15Max. (peak) 3 Al Ant. Term. 200 Mmfd. 460 kc No Signal 550-750 kc Wave Trap L I Minimum Output 4 Al A

24、nt. Term. 300 Ohms 20,000 kc 20,000 kcC Osc. C8Max. (peak)* 5 Al Ant. Term. 300 Ohms 20,000 kc Rnckthru 20,000 kc C Det. C21Max. (peak)t 6 Al Ant. Term. 300 Ohms 20,000 kc 20,000 kcC Ant. C5Max. (peak)t 7 Al Ant. Term. 300 Ohms 6,000 kc 6,000 kcB Osc. CIO Max. (peak) 8 ATermI Ant. . 300 Ohms 6,000 k

25、c 6,000 kcB Det. C20 Max. (peak) 9 Al Ant. Term. 300 Ohms 6,000 kc 6,000 kcB Ant. C6 Max. (peak) 10 ATerml Ant. 200 Mmfd. 600 kc 600 kcA L -F Osc. L8 Max. (peak) 11 Al Ant. Term. 200 Mmfd. 1,500 kc 1,500 kc A H -F Osc. C13 Max. (peak) 12 Ale Ant .l Ant. 200 Mmfd.1,500 kc 1,500 kcA Det. C19 Max. (pea

26、k) 13 Al Ant. Term. 200 Mmfd. 1,500 kc1,500 kc A Ant. C7 Max. (peak) I 14 Al Ant. Term. 200 Mmfd.600 kc Rock thru 600 kc A L -F Osc. L8 Max. (peak) 15 AlTerm. Ant. 200 Mmfd. 1,500 kc 1,500 kcA H -F Osc. C13 Max. (peak) * Use minimum capacity peak if two peakscan be obtained. -1 Use maximum capacity

27、peak if two peakscan be obtained. $ After this adjustment, check for image signal by shifting receiver dial to 19,080 kc. PAGE 977-B Selector Dial (Model 9K3). -Figure 10 illustrates the relation of the various parts of the dial mechanism when initsStandard broadcast positionwiththerange switch like

28、wise turned to its .Standard broadcast posi- tion. In re -assembling the dial after repairs, see that the gears are meshed in accordance with the diagram, at ROVER LINK PIVOT STUD ROLLER LINK DIAL POINTER SHAFT VERNIER nIAL RANGE SELECTOR SHAFT TUNING SHAFT RANGE SELECTOR SWITCH SHAFT Selector Dial

29、Mechanism (Model 9K3) the same time noting that the range switch isinits Standard broadcast position and the range -switch shaft placed in the position shown. To adjust the dial mechanism, set the range switch to its Standard broadcast position. Place a straight -edge across the center of the dial s

30、o that its edge is even with the lower (end) marking at both the low -frequency and high -frequency ends of the dial. Under such conditions the straight -edge should be parallel with thetop of the 9K1 & 9K3 chassis base.If the straight -edge is not parallel with the top of the chassis base, loosen t

31、he nut on the rear of the roller link pivot stud and move the stud up or down until the link roller moves the dial to the desired posi- tion so that the end calibration marks obtain the position mentioned above.Tighten the nut on the rollerlink pivot stud. Set the gang tuning condenser toits maximum

32、 ca- pacity position. Adjust the dial pointer to the low -fre- quency (end) mark on Standard broadcast scale. This is a friction adjustment. With the gang tuning condenser platesstillinfull mesh, loosen the two set screws on the vernier -dial hub. Rotate the vernier dial until the 0 marking is in a

33、ver- tical plane above the center of the shaft.Tighten set screws. BLACK SEC PR OUTPUT MANSE Ta INI 1K3 371.70 0 SRC0.3 0.17g BROWN BROWN BROWN BLACK DROWN BLACK -Loudspeaker Wiring REPLACEMENT PARTS Insist on genuine factory -tested parts, which are readily identified and may be purchased from auth

34、orized dealers STOCK No.DESCRIPTION STOCK No.DESCRIPTION RECEIVER ASSEMBLIES 4841 Capacitor -0.1 Mfd. (Model 9K1, C30, C48, C49)(Model 9K3, C27, C30)12706 Arm -Hub and arm assembly complete with set screws for operating 4840 Capacitor -0.25 Mid.(Model 9K1, C31, C37 (Model 9K3, C37) shutter link(loca

35、ted on range -switch shaft) (Model 9K1 only) 5170 Capacitor -0.25 Mfd. (Model 91(1, C18, C45) (Model 91(3. C45) 12806 Board -3 -contact antenna and ground terminal board 5212Capacitor -16 Mfd. (C46)12863 Board -4 -contact and 2 -link phonograph terminal board 12467Capacitor -30 Mfd. (Model 9K1, C47)

36、(Model 9K3, C47. C48) 12929 Bracket -Mounting bracket forI.F. tone control or volume control 13655 Capacitor pack -Comprising two sections each .015 Mfd., one sec- 5237 (Model 91(3 only) Bushing -Variable condenser mounting bushing assembly Lion0.1Mid.,and two 27,000 -ohm resistors(C38, C39,C40, R12

37、, R14) (Model 9KI only)13656 Button -Plug button for top of detector coil shield, Stock No. 12799 12708 Coil -Antenna coil and shield(I.2.1.3. 1.4,L5) 11625 Cable -Tuning tubs cable and socket 13654 Coil -Detector coil and shield (L9. LIO, L11, L12, L13) 12511 Cap -Grid contact cap 12709 Coil -Oscil

38、lator coiland shield(1.6,L7. 1.8) 12684 Capacitor -Adjustable trimmer (long) (C5, C7, CIO. C13) 13657 Compensator pack -Comprising one Mfd.,one Mfd.,one 12714 Capacitor -Adjustable trimmer (medium) (C6, C8, C19, C21) .015 .01 .07 Mfd. capacitors and one 27,000 -ohm and one 39,000 -ohm re- 12807 Capa

39、citor -Adjustable trimmer (short) (C20) sistors (C38, C39, C40, R12, R14) (Model 9K3 only) 12896 Capacitor -15 Mmfd. (C22) 13650Condenser -3 -gang variabletuning condenser(C4, C15,C25) 12722 Capacitor -18 Mmfd. (C12) (Model 91(1 only)12723 Capacitor -56 Mmfd. (C2. C17) 12922Condenser -3 -gang variab

40、letuning condenser(C4, C15.C25) 12404 Capacitor -120 Mmfd. (C28, C29, C32, C33) (Model 91(3 only)12724 Capacitor -120 Mmfd. (C)6, C41) 5119 Connector -3 -contact female connector for reproducer cable 12725 Capacitor -150 Mmfd. (Cl) 12006 Core -Adjustable core and stud for Stock Nos. 12652 and 12653

41、12406 Capacitor -180 Mmfd. (C34) 12664 Core -Adjustable core and stud for Stock No. 12654 12727 Capacitor -555 Mmfd. (C14) 12800 Core -Adjustable core and stud for Stock No. 12709 12537 Capacitor -560 Mmfd. (C3, C23, C26) 13653 Dial -Station selector dial scale (Model 91(1 only) 12729 Capacitor -1.5

42、50 Mmfd. (C11) 12870 Dial -Vernier dial and disc assembly (Model 9K3 only)12728 Capacitor -4.500 Mmfd. (C9) 13651Drive -Variable tuningcondenservernierdrive withpiniongear 4838 Capacitor -.005 Mfd. (C44) (Model 9K1 only) (Model 91(1 only) 13033 4858 4870 Capacitor -.007 Mfd. (C44) (Model 91(3 only)

43、Capacitor -.01 Mfd. (Model91(1,C24, C36, C42)(Model 9K3, C18, C24, C31. C36, C42) Capacitor -.025 Mfd. (C35) 12712 5226 12868 Indicator -Station selectorindicatorpointer (Model 91(1 only) Lamp -Dial lamp, 6.3 volts Link -Range switchandband indicatoroperatinglink, complete with spt screws (Model 91(

44、3 only)12670 Capacitor -.035 Mfd. (C43 (Model 9K1 only) 13683 Mask -Dial scalemask, complete withcoloredscreens(Model 9K113841 Capacitor -.07 Mfd. (C43) (Model 9K3 only) only) PAGE 478-B 9K1 & 9K 3 REPLACEMENT PARTS (Continued) STOCK No. DESCRIPTION STOCK No. DESCRIPTION 13834Resistor -100 ohms, wir

45、e wound, 4 watts,for 25 -cycle model onlyREPRODUCER ASSEMBLIES 5112 (R26)(Model 9K3 only) Resistor -1,000 ohms, carbon type,V4 watt (R3) (Model 9K1 Only) 11300Resistor -33,000 ohms, carbon type, 1/10 watt (R2, R5)12641Board -3 -contact reproducer terminal board 11282Resistor -56,000 ohms, carbon typ

46、e, 1/10 watt (R8)12640Bracket -Output transformer mounting bracket and clamp 11365Resistor -82,000 ohms, carbontype,1/4watt(Model 9K1, R17)12012Coil -Field coil (L20) (Model 9K3, R6)11469Coil -Neutralizing coil(L19) 11398Resistor -220,000 ohms, carbon type, 1/10 watt (R9) 12667 Cone -Reproducer cone

47、 and dust cap (L18) 11453Resistor -270,000 ohms,carbontype,1/10 watt(R15)(Model 5118Connector -3 -contact male speaker cable connector 9K1 only)9696Reproducer -Complete 13005Resistor -390,000 ohms,carbontype,1/10 watt(R16)(Model11253Transformer -Output transformer (T2) 9K1 only)11886Washer -Spring w

48、asher to holdfieldcoil securely 11172Resistor -470,000 ohms, carbon type,1/4 watt (R13) 11452Resistor -470,000 ohms,carbontype, 1/10 watt(R16)(Model REPRODUCER ASSEMBLIES 9K3 only) 11397Resistor -560,000 ohms, carbon type, 1/10 watt (R1, R4) (Model 9K3 Only) 5035Resistor -560,000 ohms, carbon type,Y

49、.I.watt (R15) (Model 9K3 only) 12914Board -Reproducer terminal board 12013Resistor -1 megohm, carbon type, 1/10 watt (R19) 13842Bracket -Output transformer mounting bracket and clamp 11626Resistor -2.2 megohms, carbontype,1/4watt(Model 9K1, R10) 13660Coil -Field coil (L20) (Model 9K3, R7, R10) 11469Coil -Neutralizing coil(119) 12679 12927 Resistor -2.2 megohms, insulated,1/4 watt (R7) (Model 9K1 only) Resistor -Voltage divider, comprising one 16 -ohm, one 25 -o