RCA-Victor-Co-Inc-5T7 电路原理图.pdf

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1、收音机爱 好者资料库 RadioFans.CN PAGE 4 2- B MODELS 5T6, 5T7, 5T7-0 361t.c. Radiotron, Coil, and Trimmer Locations First Det.-Oscillator Intermediate Amplifier No. 46, 6.3 volts, 0.25 amperes volts, 50.60 cycles, 80 watts volts, 25.60 cycles, 80 watts volts, 40.60 cycles, 80 watts (3) RCA -6Q7 (4) RCA -6F6 (

2、5) RCA -5W4. LOUDSPEAKER Type. 460 kc Second Det., A -F Amp. and A.V.C. Audio Power Amplifier Full -Wave Rectifier Electrodynamic Voice Coil Impedance 21/4 ohms at 400 cycles POWER OUTPUT RATING Undistorted2.0 watts Maximum.4.5 watts 345V. - -A . C - I RECT 5W4 1- -335V. 11.1 -=17.2 V. ELECT. CAP. C

3、25 tt I 1-3.1 V:)I I I C.G.I I I Coo ioay. 257v.L135V. L_ _L0 15TDET.8, OSC. GA8 5.1V. A.C. L_I 335 V. A .C. IsT.I.F.TRANS. 1Le ADJ. T 460 K.C. 257 V. I. F. GIA7-. - 6.4V. A.C. BOTTOM VIEW- REAR OFCHASSIS 102V. r+ A.C. 5.4 V. L_ OUT PUT 6F6(-17.2V.*) -0.5V. C.G. A.C. 0 . 6.4V. (113V.*) 4.0 V. 244 V.

4、- 257V. - 2*.I. F. T PANS . LW M 460 K.C. 12j -0.1V. 2. DET. A.V. C 6117 -o.1V.- - ELECT CAP. C 2 6 257V. itM-61722-0 Radiotron Socket Volt ages, Coil, and Trimmer Locations Measured at 115 volts, 60 -cycle supply- -Tuned to approximately 1,000 kc (Standard broadcast)- No signal being received-Volum

5、e control minimum Note:Two voltage values are shown for some read- ings. The value shown in parentheses with asterisk (5) indicates operating conditions without voltmeter loading. 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 LI il; 56 MME TO PIL

6、OT LIGHTS C2 15-450 MMF LTiL L5 7311 3-15 C3 MMF C4+ 0.1 MF 1t-DeeETAG8.61L 8.611. CI3 120 It MMF LF. 6K7 RRNGE SELECTOR IN iST MORRO BRORDCRST. POSITION. RI6 Lin LCv 5.511. IS C7 .450 MMF. C8 400-800 MMF RI 56.000, 8.6n -430- 12.9n-25 POWER SW. q L7 00.870 .005 M R2 6,1300, -CIS R4 TOA MFD. 27, 000

7、.n LINK CU)SEEI FOR RADIO) (9/ 8.6.ft CI 101 MMF. PHONO. TERM BR a 2 2OIL DET. AXCOUTPUT 6Q 7 6FPUT CI7 120 MMF. R7 R 6 4000., 2.2 MEG Wvw R5 IOMEG. C19-r .007N1PQL Re 220.000 VOLUME CONTROL 3 RIO DR 010 MFD. R9 2 MEG. TOTAL CPI 500,000A SECTION ORL 220 MMF. R II 270,000 R3 22,00011 CII Tiy .255 FD.

8、AFD. C912.90.1t 1350FIELD T MMF O 745A.- 00- 11202L - C2511 U4 10. -.- MFD. RECT. 5W4 5 C26 18 MIT. GROUNDED SIDE TO FILO The small, blaok, insulated 1.8 ohm resistor (R16). shier. connects from the hot side of the 6F6 heater oirouit to the terminal strip direotly behind the volume oontrol, should b

9、e replaoed on all chassis passing through service shops for repair. The replacement resistor, Stook 714301_1.2 a wire -wound type, with the resistance elementenolaW.in ceramics tut*.This resistor is in series with the pilot lamps and serves to reduce voltage. RIS 270.w. Mokov R 144. 1811 WNW R13 100

10、,000n. C27 TO.25 MFD. C22 .01 PATO. R12 470000 I.F. TRANSF CONNECTIONS P-76403-0 2.1.F.TRANSF. CONNECTIONS MO 000.000. 5.6n 43011I 153 TONE CONTR. (ON 51 51-1R L12 HUM WI/ COIL SPEAKER CONNECTIONS T Eirr GALEN 6nOWN 745.OW GON CLACKa-N- 11ZOn BROWN RED 13* 25 no C - Rep LACK POWER TRANSF CONNECTIONS

11、 ANT. COIL CONNECTIONS V. C. LIZ 2.750 OSC. COL CONNECTIONS VI 0 co 收音机爱 好者资料库 RadioFans.CN PAGE 44-B 5T6, 5T7, 5T7-0 & 5T8 Alignment Procedure STEP CONNECT HIM SIDE OF TEST OSC.TO - TUNE TEST OSC TO - TURN RADIO DIAL To ADJUST ME FOLLOWING FOR MAX. OUTPUT 1 6K7 I-F Grid in series with 0.01 mfd 460

12、kc Point near 600 kc NBC Band 211210 2nd I-F Trans. 2 6A8 Bet. Grid In series with 0.01 mfd LBL8 1st I-F Trans. 3 Antenna in series with 200 urnfd L1Wave Trap Minimum Output 41700 kc 1700 kc BC Band C5C3 Osc.Ant. 5600 kc 600 kc BC Band C8L-F Osc. Rock Gang 8Repeat Step 4 I tl r .6aF TERM. BARD YELL(

13、) TR. CK-RID TR.-,V NK ARIAI. Z LEAD RED - FILAMENTS DUE -cp.EEN RECT REFN Mown SLACK-DROwn BROWN -I RECTIFIER Ft. ANTE NT 5- VO,TS Primary nes stance -21.5 ohms total Secondary resistance -760 ohms total Universal Transformer Radiotron Cathode Current Readings Measured with Milliammeter Connected a

14、t Tube Socket Cathode Terminals Under Conditions Similar to Those of Voltage Measurements (1) RCA -6A8 -1st Det.-Osc 11.7 ma. (2) RCA-6K7-I. F. Amp. 9.4 ma. (3) RCA -6Q7 -2nd Det., A.V.C. and A. F 0.3 ma. (4) RCA-6F6-Power Amp 39.6 ma. (5) RCA-5W4-Rectifier. 61.0 ma. * Cannot be measured at socket.

15、REPLACEMENT PARTS Insist on genuine Factory tested parts, which are readily identified andmay be purchased from authorized dealers. STOo.CK N DESCRIPTION STOCK DESCRIPTION 13098Board-Antenna and ground terminal board 11398 Resistor -220,000 ohm, carbon type, 1/10 watt (R8) 12717Board-Phonograph term

16、inal board 11123 Resistor -270,000 ohm, carbon type, * watt (R11) b237Bushing-Variable condenser mounting bushing assembly 11172Resistor -470,000 ohm, carbon type, * watt (R12) 12511Cap-Grid contact cap 11626 Resator-2.2 megohm, carbon type, * watt (R6) 11465Capacitor-Adjustable capacitor (C8) 13673

17、 Resistor -10 megohm, carbon type, 1 watt (R5) 12659Capacitor -12 Mmfd. (C6) 4669ScrewNo. 8-32x5/32 set screw for drive disc, Stock 12661Capacitor -56 Mmfd. (C1) No. 13816 12404Capacitor -120 Mmfd. (C13, C14, C16, C17) 12650ShieldAntenna coil shield 12406Capacitor -180 Mmfd. (C18) 12735Sh.eld-Dial l

18、amp shield 13818Capacitor -220 Mmfd. (C21) 12607Shield-First I.F. transformer shield, top 12660Capacitor -1,350 Mmfd. (C9) 12008Shield-First or second I.F. transformer shield 4868Capacitor-.005 Mfd. (C10, C24) 12651Shield -Oscillator coil shield 5148Capacitor-.007 Mfd. (C19) 12581Shield-Second I.F.

19、transformer shield top 13138Capacitor-.01 Mfd. (C20) 11195Socket -5 -contact 5W4 Radiotron socket 4858Capacitor-.01 Mfd. (C22) 11196Socket -8 -contact6A8,6F6, 6K7 or 6Q7 Radiotron 11315Capacitor-.015 Mfd. (C23) socket 4841Capacitor -0.1 Mfd. (C4, C15) 11199Socket-Dial lamp socket 4840Capacitor -0.25

20、 Mfd. (C11, C27) 12007Spr.ng-Retaining spring for core, Stock Nos. 12006 and 5170Capacitor -0.25 Mfd. (C12) 12664 11240Capacitor -10 Mfd. (C25) 13813Tone Control and Power Switch (S1, S3) 6212Capacitor -18 Mfd. (C26) 13108Transformer-First I.F. transformer, complete (L8, L9, 12648Coil-Antenna coil-l

21、ess shield (L2, L3, L4, L5) C13, C14) 12649Coil-Oscillator coil-less shield (L6, L7) 13107Transformer-SecondI.F.transformer, complete (L10, 13811Condenser -2 -gang variable tuning condenser (C2, C3, L11, C16, C17, C18, R7, R8) C5, C7) 12644 Transformer-Power transformer, 115 volt, 60 cycle (T1) 5119

22、Connector -3 -contact female speaker cable connector 12645 Transformer-Power transformer, 115 volt, 25 cycle (T1) 12006Core-Adjustable core and stud assembly for I.F. trans- former, Stock Nos. 12652 and 12653) 12646 Transformer-Power trarisformer, 240-210, 150-125-110 volts, 60 cycle (T1) 12664Core-

23、Adjustable core and stud assembly for wave trap, 12854Trap -Wave trap (LI) Stock No. 12654 13144Volume Control (R9) 13814 13816 13815 Dial-Station selector dial Disc-Station selector drive disc and lamp socket assembly Drive-Variabledrivebeanng 13822 REPRODUCER ASSEMBLIES Coil-Field coil (L14) conde

24、nsershaft, spool and Fuse -4 amp. resistor -fuse,1.8 ohms (R16)14301 13821Cone-Reproducer cone and dust cap (L13) 13817Indicator-Station selector indicator 5118Connector -3 -contact male speaker cable connector 5226Lamp-Dial lamp 9778Reproducer, complete 13812Range Switch (S2) 13823Transformer-Outpu

25、t transformer (T2) 13674Res.stor-18 Ohm, carbon type, I watt (R14)MISCELLANEOUS ASSEMBLIES 13819Resistor -270 ohm, wire wound, 1.1 watt (R15)13824Escutcheon-Station selector escutcheon 8070Res stor-22,000 ohm, carbon type, 1 watt (R3)12673Knob-Station selector or volume control knob 12011Resistor -2

26、7,000 ohm, carbon type, 1 watt (R4)13825Knob-Tone control or range switch knob 11364Resistor -33,000 ohm, carbon type, I watt (R10)11586 Screw-Chassis mounting screw No. 14x1 in. 11282Resistor -56,000 ohm, carbon type, 1/10 watt (R7)13885 Screw-No. 8-324 in. headless set screw for knob, Stock 5029Resistor -56,000 ohm, carbon type, * watt (R1)No. 13825 11454Resistor -6,800 ohm, carbon type, * watt (R2)4119 Screw-No. 8-324 in. headless set screw for knob, Stock 5145Reaistor-100,000 ohm, carbon type, * watt (R13)No. 12673