RCA-Victor-Co-Inc-U-115 电路原理图.pdf

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1、PAGE 680-0 MODEL U-115 CHASSIS No. RC -348E Six -Tube, Electric -Tuning, Single -Band, A -C, Superheterodyne Victrola Frequency Range PUSH BUTTON RANGES : Button No. 1 (left) Button No. 2 Button No. 3 Button No. 4 Button No. 5 Intermediate Electrical and Mechanical Specifications R C -348E RC -348E

2、MOD 540-1,720 kc RC -348E M 550-980 kc 550-980 kc 550-980 kc 650-1,080 kc 550-980 kc 550-980 kc 650-1,080 kc 650-1,080 kc 690-1,225 kc 850.1,500 kc 850-1,500 kc 850-1,500 kc 850-1,500 kc 850-1,500 kc 850-1,500 kc Frequency 455 kc TUBE COMPLEMENT (1) RCA -6A8 -G First-Det., Oscillator (2) RCA -6K7 I

3、-F Amplifier (3) RCA -6H6 2nd-Det. and A.V.C. (4) RCA -6F5 Audio Voltage Amplifier (5) RCA -6K6 -G Power Output (6) RCA -5Y3 -G Full -Wave Rectifier Pilot Lamp (1) Mazda 44, 6.3 volts, .25 amp. POWER SUPPLY RATINGS A-6 105-125 volts, 60 cycles, 100 watts A-5 105-125 volts, 50 cycles, 100 watts B-2 1

4、05-125 volts, 25 cycles, 100 watts RUBBER SPINDLE PIECE OIL s -90T OIL HOLE AND PLUG C-6 C-5 105-125, 200-250 volts, 60 cycles, 100 watts 105-125, 200-250 volts, 50 cycles, 100 watts LOUDSPgA KER (84327-1) Type 6=inch electrodynamic Voice -coil Impedance at 400 cycles 2.6 ohms Height Width Depth Cab

5、inet Dimensions (inches) . 14-3/16 . 16-13/16 . 132 Chassis Base Dimensions (inches) . 3 . 111 5 Over-all Chassis Height 9) inches Weight 27 lbs. (net) . 341, lbs. (shipping Tuning Drive Ratio 6 to 1 Victrola Mechanism Motors Used in Model U-115 At left, cast -frame type, Drawing No. 84430 At right,

6、 drawn -metal type, Drawing No. 84484 The crystal pickup is sealed in a metal case as protection against extreme changes of climate. If failure occurs, do not attempt to repair the unit, but install a new crystal unit. The phonograph motor is a self-starting constant -speed induction type. Two style

7、s of motor are employed: One style (drawing No. 84430) has a cast frame and mounts from below the motorboard. The other style (drawing No. 84484) has a drawn metal case, and mounts from top of motorboard through a cutout. The two types are shown in the accompanying illustrations. Motor Lubrication.-

8、Apply a few drops of light machine oil to the spindle bearing and oil hole every six months. C 7-OSC. IfO6Hc 2e OET. inches from the center line of the spindle. PRIMARIES CONNECTED IN PARALLEL FOR OPERATION ON I10 -VOLT SUPPLY TO 110 VOLT AC SUPPLY 110 VOLTS TO PHONO MOTOR RED RED -BLACK PRIMARIES C

9、ONNECTED IN SERIES FOR OPERATION ON 220 -VOLT SUPPLY TO 220 VOLT AC SUPPLY 5V GREEN BROWN BROWN -BLACK - BROWN 63V BLUE 110 VOLTS TO PHONO MOTOR PRIMARY I D -C RESISTANCE PRIMARY42 H.V. SECONOARY(TOTAL). REFER TO MODEL 95T5 FOR ALIGNMENT PROCEDURE 13n 61L 550 II - RCA VICTOR DIVISION OF RADIO CORPOR

10、ATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 681-C PICKUP CONS. NOTE POSITION OP TAB R - 7L 4 W it , 527 BLACK BLOC RADIO-VICTROLA SWITCH BEAR VIEW SHOWN IN PHONO. POSITION POWER -TONE POWERTONE-VOLUME CONTROL 1 2 3 4 5 TUNING CONTROL U-115 U-115 VOLUME CONTROL -TONE CONTROL

11、 RS 1414 POWER SW ITCH- - 51 easy. 16 EGOS, TO 6E5 GRID C lee cer PO . L.J. CFfl .F 115V. 6K6 -G 6 F OUTPUT AUDIO OSCILLOGRAPH CONNECTIONS- VERTICAL-NITO THIS TERM. VERTICAL -0 -TO CHASSIS Ti RIG CATHODE. CURRENTS (1) 6A910.9 M.A. 41 5KT_._. . _. _10.3 M.A. (31 6106 RI 6E5 _. _ _ 0.4810. A. (5) 4K6

12、-G _ 39.OM.A. TOTAL RECTIFIED B CURRENT 66M.A. 13 at 6H6 PUSH BUTTON SWITCH 2. DET.,AYC. d 520 521 52E 523 524 1 525 II- GREEN 5251 ELLOO SIT -512SI2 513 -41S19514 - - SIS SI6BS517 17 L12 LI3 LN LIS v 16 OSC. COI LS BROWN BLACK I RA i C5 C3 15LlOK.C. I C22 23t1 - C24 5 Y 3-G RECT. C31 L7 PRI. ADJ 45

13、50 C ANT. TRIMMERS c3o l 60V 6K1 I.F t.J 1 -15v. 10oV A200V.424qV. RIS R12 I R3 R11 BOTTOM VIEW -REAR OF CHAS- S- IS Measurements made to chassis unless otherwise indicated, with set tuned to quiet point and volume control at minimum. Values should hold within approximately 20% with 117 -volt a -c s

14、upply. MANUAL SLI 52! 5G St5() C2O QI C22 CO3 CN11 C2 T T T 11-400 MF ANTENNA TRIMMERS. SIL 315 514 515 SK 317 n -c J -!g .f$ xg 1 X$C3 ON UZl US 4l US LNl NMt 1 OSCILLATOR COILS DIRECTION OF PB SWITCHES *ANTENNA TRIMMER CAP. BANK .z TiAs C20 C2I C22 C23 C24 RC348E YO F0 MM COcOMM MM EMS 11C-3NE IMA

15、M/ 106400 TEMO E0-60 HOF_ MM MME. M MME Y-140 IC346E MEMO MME b0M40 F 0,4E40 0 -WO MF E0 -b0 M . BLUE hET. C 05C. 6, 7 0 I I N e.RC-348RC-3E4BM OD 35J IN PC34BE-M OSC. GDIL 513-5 RECT. GREEN, I R C)26ov. 100 R10 BLUE BLACK PR ADJ, 4SSKC C11 09 1!4., OR CIT Cl CG IS00KC BLACK OSC. COIL L4 mor -1 1 Gw

16、DACA 1 L 0 100V. O (2) 260V. 1sT I.F TRANS. 6A8 -G 1!T DET.,OSC. T-9esot U.II! t+t N4! OOV. R2 *NOTE: Values with star (*) are operating voltages in circuits with high series -resistance. The actual measured voltages will be lower, depending on the voltmeter loading. E D16 Er. Age. BOTTOM VIEW ,F TU

17、BE SOCKETS BAO WM FIUCL 129A Iowa RN 6F5 AUDIO 606-G OUTPUT 38 cz. MNE n.,o TONE CONTROL RM 500,000 A 0.; I:Ne AND wiTHLE e r0 1 LOMFO.IN UNIT y4yO5 AND SLACK-. G CONTACTS R K MAA TO HEATERS BLUE/ MAO 120,000 A II 1 0101 LAMP BRDWN-BLACK F0. PLUS AUTOMATIC SWITCH S26 (UnT0TAL 50. NoloR) /-R_ 10 MOTO

18、R BLACK BLUE GREEN C35 1503.3 PICWUP B20,000 BLUE PHONO. .-R19 I00,000 RADIO -PHONO SW. 527 (REAR VIEW) SHOWN IN PHONO. POSITION Precautionary Lead Dress.-(1) Dress green lead from antenna coil to switch away from the chassis and gang. (2) Dress lead from 2nd I.F. transformer to volume control away

19、from other leads. (3) Ground bus from 6H6 socket must be close to chassis. (4) Dress leads away front oscillator coil adjustment screws. (5) Dress power transformer primary leads toward left-hand end of chassis. (6) Dress plate lead to output transformer close to chassis. 收音机爱 好者资料库 RadioFans.CN PAG

20、E 682-C U-115 Insist on REPLACEMENT PARTS genuine factory -tested parts, which are readily identified and may be purchased From authorized dealers. STN o. DESCRIPTION DESCRIPTION STIOoCK DESCRIPTION CHASSIS ASSEMBLIES (RC -348E) 32135 Motor -105-125 volts, 60 cycle Cable female for 32177 Shaft -Turn

21、table spindle shaft and fibre gear 32136 -Shielded cable and plug phono- graph input (Motor No. 84484-2, 3, or 4) 12723 Capacitor -56 mmfd. (C4) 32336 Field -Motor field coils and laminations, 110 30904 Capacitor -100 mmfd. (C7, C8, C9, C10). volts, 80 cycle (For Motor 84484-2) 12725 Capacitor -150

22、mmfd. (C35) 32650 Field -Motor field coils and laminations, 110 13003 Capacitor, -180 mmfd. (C12) volts, 50 cycle (For Motor 844.4-3) 12488 Capacitor -270 mmfd. (C32) 32652 Field -Motor field coils and laminations, 110 31435 Capacitor -750 mmfd. (C25) volts, 25 cycle (For Motor 84484-4) 4838 Capacit

23、or -.005 mfd. (C15, C26, C30) 32558 Motor -105-125 volts, 60 cycle (84484-2) 14393 Capacitor -.01 mfd. (C13, C14) 32637 Motor -105-125 volts, 60 cycle (84484-3) 4870 Capacitor -.025 mfd. (C34) 32638 Motor -105-125 volts, 25 cycle (84484-4). 4886 Capacitor -.05 mfd. (C11) 32337 Shaft -Turntable spind

24、le shaft and fibre gear - 30899 Capacitor -0.l mfd. (C1, C31) 80 cycle (For Motor 84484-2) 31424 Capacitor -Comprising 2 sections 8 mfd. each 32851 Shaft -Turntable spindle shaft and fibre gear - (C16, C17) (This type has leads) 50 cycle 32342 Capacitor -Comprising 2 sections 10 mfd. each 32653 Shaf

25、t -Turntable spindle shaft and fibre gear - (C16, C17) (This type has terminals) 25 cycle 31382 Clip -Oscillator coil and core mounting clip. 32338 Coil -Antenna coil (L1, L2) PICKUP AND ARM ASSEMBLIES 31098 Coil -Oscillator coil (L3, L4) 31422 Condenser -2 -gang variable tuning condenser 31212 Base

26、 -Pickup arm pivot shaft, trip lever, and (C2, C3, C5, C6, C33) mounting base assembly 32355 Control - Volume control, tone control a n d 32138 Cable -Shielded cable and male plug for pick - power switch up arm 30877 Cord -Indicator drive cord 31050 Crystal -Pickup crystal and needle screw 30905 Cor

27、e -Adjustable core for i -f trans- 32137 Pickup and arm complete formers 12539 Screw -Pickup needle screw 31386 Core -Adjustable core and stud for oscillator coils . SPEAKER ASSEMBLIES 31421 Drum -Variable condenser drive cord drum. 31420 Indicator -Station selector indicator pointer. 31443 Cone -Sp

28、eaker cone and voice coil (L9) -for 11891 Lamp -Dial lamp Speaker No. 84327-1 31419 Plate -Dial color plate 31663 Speaker complete (No. 84327-1) 30868 Plug -2 -contact female plug for motor power leads 31477 Transformer -Output transformer (T2) (For Speaker No. 84327-1) 31373 Pulley -Indicator drive

29、 cord pulley 32586 Cone -Speaker cone and voice coil for Speaker 31425 Resistor -Voltage divider -comprising one 22- No. 84327-3 ohm, one 18,000 -ohm, one 8,200 -ohm and one 32587 Coil -Speaker field coil for Speaker No. 84327-3 31388 3,900 -ohm sections (R3, R11, R12, R15). Resistor -390 ohms, 1 wa

30、tt (R9) 32588 Transformer -Output transformer for Speaker No. 84327-3 14559 Resistor -10,000 ohms, I watt (R17) 12738 Resistor -27,000 ohms, i watt (R10) MISCELLANEOUS ASSEMBLIES 12286 Resistor -56,000 ohms, i watt (R2) 3252 Resistor -100,000 ohms, i watt (R19) 14803 Brake -Automatic brake complete

31、13734 Resistor -120,000 ohms, i watt (R16) 31428 Button -Station selector switch push button. 12199 Resistor -270,000 ohms, i watt (R7) 31487 Clip -Spring clip to hold dial 30963 Resistor -820,000 ohms, I watt (R18) 31464 Damper -One rubber cap for motor spindle, 12679 Resistor -2.2 meg., i watt (R4

32、) and one metal damper plate 13601 Resistor -10 meg., I. watt (R6) 31429 Dial -Station selector glass dial 14887 Retainer -Pulley retainer 31095 Disc -10 protective discs for call letter markers. 14350 Screw -No. 8-32 square -head set screw for 31667 Escutcheon -Tuning dial escutcheon drum, Stock No

33、. 31421 32140 Hinge -Cabinet lid hinge 31364 31251 Socket -Dial lamp socket Socket -Tube socket 31355 Knob -Station selector or radio -record switch knob (small) 31418 Spring -Indicator drive cord tension spring. 31391 Knob -Tune control and power switch knob 31414 Switch -Push button station select

34、or switch (small) (S12, S13, S14, S15, S16, S17, S20, S21, S22, S23. S24, S25) 30773 Knob -Volume control or station selector knob (large) 30902 Transformer -First i -f transformer (L5, L6, C7, 30991 Markers -Push button call letter markers C8) 31054 Mounting -Pickup arm rubber mounting, wash - 3090

35、3 Transformer -Second i -f transformer (L7, LS, ers, and nut C9, C10) 32139 Mounting -Motor mounting spacers, washers, 31574 Transformer -Power transformer, 100-120 volts, and screw -sufficient for one motor 25-60 cycle (T1) 30870 Plug -2 -contact male plug for motor leads 31380 Transformer -Power t

36、ransformer, 100-120 volts, 14270 Spring -Retaining spring for knob, Stock Nos. 50-60 cycle (Tl) 30773 and 31355 31575 Transformer -Power transformer, 100-120 and 30330 Spring -Retaining spring for knob, Stock No. 200-240 volts, 50-60 cycle (T1) 30100 31391 Springs -Tension springs for automatic brak

37、e - MOTOR ASSEMBLIES * one long and one short (Motor No. 84430) 32141 14804 Support -Cabinet lid support Switch -Automatic brake switch (S26) 32176 Bearing -Rotor thrust bearing screw and nut. 12647 Switch -Radio -Record switch (S27) 32175 Field -Motor field coils and laminations 31463 Turntable * M

38、otor No. 84430 is type that mounts from below motorboard. Motor No. 84484 is type that mounts from top of motorboard through a cutout. TRIMMER CAPACITOR BANK AND ELECTRIC -TUNING OSCILLATOR COILS (Refer to Electrical Specifications for frequency ranges) Chassis Stamped Chassis Stamped Chassis Stampe

39、d RC -348E RC -348E MOD RC -348E M DESCRIPTION Stock Stock Stock No. No. No. Capacitor -Trimmer capacitor bank (C20, 21, 22, 23, and 24) 31416 32086 32339 Coil -Oscillator coil (L12) 31415 31415 31415 Coil -Oscillator coil (L13) 31384 31415 31415 Coil -Oscillator coil (L14) 31384 31384 32340 Coil -Oscillator coil (L15) 31383 31383 31383 Coil -Oscillator coil (L16) 31383 31383 31383 收音机爱 好者资料库 RadioFans.CN