RCA-Victor-Co-Inc-RE-20 电路原理图.pdf

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1、PAGE 7 7 -A RE -20, R-50, R-55, RAE -59 311:=1 21IS144!2 ITT4V j 1111111111111 111111I I I, 6 .091 .441 MICRON 0111i4, 1 25 5,0004+ 6-24 7,500 6.27 600a 1.-11 R-30 7 MAGNETIC PICKUP PHONOGRAPH MOTOR .J Schematic Wiring Diagram R E- 20 180004 2,1 OCT. 22 01.11:510. 2400 114E6. ntd.T.S: LIMO It will b

2、e noted on the early Models of R-50 and R-55 that a small 9 mmfd. capacitor is inserted in series with the oscillator trimming capacitor.This capacitor is not used on later models that have a slightly different dial scale. When replacing a dial scale it may therefore be necessary to short this capac

3、itor.A failure in the capacitor may be remedied either by replacing the capacitor or the dial scale. I2 1 4 5 67 6 9 10 11 11 31415 16 a IN 1122021 MICROPHONE Ilill :1111; 1 i IINPUT!li AND PTRANSFORMERICKUP RECORDINGIRI I I.1319IIli NOME1_1_ 4 04. RECORD RADIO RECORDING RADIO R-26 7547- I , , ,. lo

4、ops ,PAM) R22 GREEN R25 MACK 010 LACK. GOA OCS MOOD VOLUME CONTROL AND MOTOR SWITCH Schematic Wiring Diagram of Model RAE -59 收音机爱 好者资料库 RadioFans.CN .13:Au:, irj1 RED ;.,L1. ram ammom S. PNo.I 71 No.2 T-1 -BLACK-AND-RED RED TRACER YELLOW- YELLOW- BROWN_ ROWNAND-BLACK- BROWN - ts GREEN GREEN -.-. BL

5、OC BLUEANDIEILOW- BLUE POWER TRANSFORMER CONNECTIONS C-31Ise C-33 le C-36 :1C-35 2.MFac.14FD. +0.5 46NtD:1-2 46.M71/ 4FD- I,C1-3314 TMFD. 25,v rZ25. *IIMFD. CAPACITOR PACK CONNECTIONS 41 IntInCMMI6InIS kV(./.1i,(if war, 004774 1711722 0-10(OVIVOt Salaram110-11110,0 53% 0.10 X. In IP,1.41213 .1.11201

6、11, 5 -4 4111# O U.% . oftea CIS I1 f11.1111 11 05.1f0 141(3001.005 . ;. II 00* *44 i=10 11=11 0.151:0 1.0.010 *MN PIANO Schematicdiagram of Model RAE -79 i a 1 a 1 . 1 ., . 5 17-32 17-28 77-27 724 17-19 20.19 1. .f. 0.5., 0.1Z.10.1 iFM D.-.MFD LIMED. Z.MFD. 1SMFD. VTI INTERNAL CONNECTIONSOF1 BY-PAS

7、S CAPACITOR PACK 4 1 E 2 81 IR a ce -1 t M r D. atiFD. 1. -17-20 -t- T 7-5,3 = . tIMFD. .c arD. _. INTERNAL CONNECTIONS OF BY-PASS CAPACITOR PACK T-2 1,22 VOLUME .Goff TIC PICKUP tO 255 ro*06411krol to07011 ,1.251110 50-60. 3.75 MID. 25 -30 - BLUE YELLOWJ VBLUE INTERSTAGE TRANSFORMER CONNECTW RED I-

8、3 BLACK -RED -AND -BLACK REDLACK OUTPUT TRANSFORMER CONNECTIONS TO*I 01.1.111.11.14 RIM -1.00 4. r4t4 1,11) sM -9.1fkivkiki -0.os OP 54,0,4; n. 141011.0. MICDPD -4 POSM 421V4Vrt., 4 .116 Rums-J . 10111011.1 GOA Pt MO L 135 C-30 C-26R-7 B-15 R-9R-6011 .01745 20004,110,000A 10,00011 0.5 745 MED. MMFE1

9、t , MEG I-MMFD -R-1312-12 R-8 R-4 L-16 30,000A 10000A 14000A 170rt 150011 RESISTOR BOARD CONNECTIONS L-18 YELLOw_ BLACK GREEN REACTOR CONNECTIONS 收音机爱 好者资料库 RadioFans.CN PAGE 80-A RE -20, R-50, R-55, RAE -59 FOLLOWING FOR. MAX. OrTrT 1 gridI -F Grid in series witn .01 mfd 175 ke .11.e-. Point near 6

10、00 k_, S.Q.P.:;: 3rd T -F Trans. 2 1stI -F Grid in series with .01 mfd 5,cP of Fed I -F Trans. 3 1st Det.Grid In series with .01 mfd F,P,P of 1st I -F Trans. 4Antenna in series wit 200inhmfd 1400 kc1400 kc 4 Trimmers on .Jang Cond. 5 600 kc600 kc POO Ice Trimmer Rock Gang 6Repeat StepLi The remote c

11、ontrol feature consists of a standard R-50 chassis with a special gang condenser; a capacitor motor coupled to the gang condenser through a series of gears; a series of drums and contactors by which the motor is started in the right direction for a given station and stopped at the right point; a spe

12、cial volume control geared to the motor; a relay to turn the set on or off and a remote control box by which these operations are controlled. The motor is provided with a tapped reactor and condenser for changing the phase angle of the applied current so that operation in either direction may be sec

13、ured.The motor operates at 23 volts for the station selector and 18 volts for the volume control. All power transformers when replaced must have the primaries so connected that the pilot light on the remote control box lights properly.If the transformers are improperly phased, the lamp will brighten

14、 instead of dim when a selector button is pressed. pAir4i; ai-A RE -20, R-50, R-55, RAE-59 E 83-A MAGNETIC PICKUP RECORD VOLUME CONTROL RE -20, R-50, R-55, RAE -59 & RAE -79 PHONOGRAPH MOTOR AUTOMATIC SWITCH TONE COMPENSATING REACTOR STATION St liCTO4 RECEIVER ASSEMBLY S.P.U. REPRODUCER ASSEMBLY 111

15、14/ SE LECTOR SWITCH - -4- SPLICE *, AC sea( 40 BuTrio N .4.414Nset( BuTTioN .4.910W volt l CCATT101./CONTROLGRI:19,INII.441ROW RED TRACER Ir4,7:7 ACA 247C A -2 47 cu0 RACK AU -RI MICROPHONE INPUT RECEPTACLE R-25( 5000.1 7,500. R-27 I 6004 1-28 1 75. INPUT TRANSFORMER -C-40 2400 IAMFD. PAGE 84-A RE

16、-20, R-50, R-55, RAE -59 & RAE -79 AUTOMATIC RECORD CHANGER STATION TONI001002 SILECTOR C0N1001. 1%4 TO44r. TRNSTOPIAER OPERATrNG SWITC uT 201uT ixORCA 211 3 Ci RECEIVER ASSEMBLY !) MAROON GREEN MD S P IJ -REPRODUCER ASSEMBLY TOP (RECORD VOLUME CONTROL AND MOTOR SWITCH SELECTOR SWITCH SLACK uT.211 A

17、 C MOUT PLUG -RE GREEN MICROPHONE INPUT RECEPTACLE TOP RESISTOR N IT LAC Aft0 CEO ON Rs LAC MICROPHONE AND PICKUP INPUT TRANSFORMER. Assembly Wiring Diagram of Model RAE -59 PAGE 8 5 -A AUTOMATIC PHONOGRAPH MAGNETIC PICKUP 1.25 MED 50.60K MOTOR SWITCH STATiON SELECTOR hm1KIABIRamwwW4.i. 2 4.047 RECE

18、IVER ASSEMBLY BLACK BLACK MTH EDTRACIA RE -20, R-50, R-55, RAE -59 & RAE -79 MICROPHONE RECEPTACLE GREEN BOAC E. DUD BLACK RED TRACE NiITN LP* YELLOW- RED RED BLUE BLACK foil YELLOW TRACER BLACK AND RED BLACK AND YELLOW ,c,K WITH YELLOW TRACER BLACK WITH i) TRACER YELLOW -:,_ GREEN WITH REDTRACER GR

19、EEN AND RED 0MEM Ell AC 1515 1LACKo MAROON BLACK RED. GREEN AND BLACK -RECORDING pUSN BUTTONS FILTER GREEN GREENR SLACK 4, TONE COMPENSATING REACTOR COMMIX SWITCH MOTOR ,HD RED tt1gORER py0 TRACER KDTRACCA ow. YE SLOW AND -R. BCA CAW TT To E,L,LACT5KcER BLACK .M1 .50,OR RESEskELY REMOTE COR,OOL SO.

20、7500 ).5000, COMPARTMENT LAMP oi tint A. C. INPUT PLUG PAGE 86-A RE -20, R-50, R-55, RAE -59 & RAE -79 REPLACEMENT PARTS Stock No. DESCRIPTION t 2563 2726 2731 2732 2736 2740 2741 2746 1747 2749 2970 3031 3033 3045 3050 3137 3138 3139 3142 3143 3144 3153 3154 3220 3240 6034 6114 6120 7062 7063 7278

21、7280 7281 7282 7283 7234 7285 7286 7287 7288 7297 1298 7299 7331 7367 RECEIVER ASSEMBLY Resistor -6,000 ohms-Carbontype -1 watt- Package of 5 Socket-Five contact Radiotron socket-Complete with insulator -7 used Resistor -10,000 ohms-Carbon type -1 watt- Package of 5 Resistor -110,000 ohms-Carbon typ

22、e -1 watt- Package of 5 Resistor -170 ohms-Carbon type -1 watt-Pack- age of 5 Cord-Tuning condenser drive cord-Package of 5 Idler-Tuning condenser drive cord idler-Package of5. Socket-Dial lamp socket Cap-Grid eoutaetee cap-Package of 5 Capacitor -2400 mmfd. Resistor -500,000 ohms-Carbon type -1 wat

23、t- Package of 5 Board-Terminal board complete with insulator- Three terminal lbasistorlmegohm-Carbontype -5 watt- Package of 5 Resistor -40,000 ohms-Carbon type -1 watt- Package of 5 Resistor -14,000 ohms-Carbon type -3 watt Knob-Station selector, Volume control or tone con- trol knob-Package of 5 B

24、oard-Terminal board complete withsoldering terminal Coil -1st detector and oscillator coil complete with shield Volume Control-Volume control complete with mounting nut Tone control-Tone control complete with mounting nut Inductor-Tone control inductor Resistor -1500 ohms-Carbon type -1 watt-Pack- a

25、ge of 5 Resistor -2,000ohms-Carbontype -1 watt- Package of 5 Resistor -15 ohms-Flexible wire type-Package of 5 Nut-Shield cover mounting nut-Package of 13 Cushion-Receiver chassis sponge rubber cushion- Package of 4 Reeistor-20,000 ohms-Carbon type -1 watt- Package of 5 Capacitor -0.05 mfd.-Package

26、of 5 Capacitor-Adjustablecapacitor -15-70 mmfd.- 2 used Capacitor-Adjustablecapacitor5-40 mmfd.-3 used Coil-R. F. and link circuit coil Board-Terminal board complete with six terminals. Transformer -1st intermediate transformer Transformer -2nd intermediate transformer Transformer -3rd intermediate

27、transformer Board-Resistor board complete with insulator- Less resistors, capacitors and coils Capacitor pack-Comprising one 1.0 mfd., one 0.5 mfd., and two 0.1 mfd. capacitors in metal con- tainer -6 leads. Capacitor pack-Comprising one 1.0 mid., one 0.5 mfd., and three 0.1 mfd. capacitors in metal

28、 con- tainer -10 leads Bracket-Dial lamp bracket and indicator Scale-Dial scale-Package of5. Coil-R.F. choke coil for 2nd detector or automatic volume coatrol Capacitor -0.01 mfd. Capacitor -745mfd. Cable-Shielded receiver cable Drum-Dial scale drum. Stock No. 7368 8708 8791 8794 DESCRIPTION List Sh

29、aft assembly-Drive shaft aseembly-Comprising bracket, drive shaft, idler shaft and two drive cord bushings Capacitor-Tuning capacitor assembly-Comprising four variable capacitors, drive, drive cord, spring and dial drum-Assembled Cover-Receiver chassis shield removable cover Shield-Receiver chassis

30、shield somplete Add 3152 7279 8703 10867 ADDITIONS AND CHANGES Resistor - 30,000 ohms (R13) Not used in RE -20 Support - Dial Screen support. Escutcheon - Tuning dial escutcheon. Spring - Drive Cord tension spring. 6114Resistor 20,000 ohms) 6220 Capacitor 0.05 mfd )Used in Model RE -20 only Change F

31、OR MODELS R-50 AND R-55 ONLY 7299 to 2734 Capacitor - 745 mmfd. 3033 to 3076 Resistor - 1 megohm Change FOR MODELS R-50, R-55 AND RAE -59 ONLY 8791 to 8777 Cover - Removable shield cover. 8794 to 8714 Shield - Complete receiver shield. Add FOR MODEL RAE -79 ONLY 3263Screw - Special 4-40 machine scre

32、w for rotor plate adjustment. 7365Transformer - 2nd I -F Transformer. 7366Drum - Dial drum with star gear. 8779Capacitor - Tuning capacitor assembly - com- prising four adjustable capacitors, drive shaft, dial drum,drive cord, spring and star gear - Assembled. 8790Shield - Complete receiver shield.

33、Add description 25-30 cycles. 7282Transformer - 2nd I -F Trans. 7367 Drum - Dial drum. 8708Capacitor - Tuning capacitor assembly. 2240 2546 2882 3045 3058 3083 3099 3145 3146 3147 3149 S. P. U. REPRODUCER ASSEMBLY Resistor -30,000 ohms-Carbon type -1 watt Fuse-Glass type -1.5 amperes-Package of 5 So

34、cket-Five contact Radiotron socket complete withinsulator. Resistor -40,000 ohms-Carbon type -1 watt- Package of 5 Resistor -100,000 ohms-Carbon type -1 watt- Package of 5 Capacitor -400 mmfd Capacitor -0.005 mfd. Resistor -700 ohms-Carbon type -3 watt Board-Terminal board complete with insulator- L

35、ess capacitor No. 3099 Cover-Fuse cover with insulator Switch-Toggle type-Operating switch complete with mounting nuts and escutcheon plate PAGE 87-A RE -20, R-50, R-55, RAE -59 & RAE -79 REPLACEMENT PARTS-(Continued) Stock No. DESCRIPTION ListStock No. DESCRIPTION Lint 6114 7290 Resistor -20,000 oh

36、ms-Carbon type -1 watt- Package of 5 Reactor -Filter reactor 3205 3207 3208 Screw-Pickup needle holding screw-Package of 10. Screw-Pickup oover mounting screw-Package of 10. Screw assembly-Pickup mounting screw assembly 7291Board-Terminal board and four contact radiotron socket complete with all ter

37、minals and fuse clips. -Comprising screw, nut and washer-Package of 10 7293Strip-Terminal strip -Complete with 8 terminals.3211Washer-Turntable spindle leather washer-Pack- 7294Cover-Terminal strip cover for 7293 age of 10 7295Strip-Terminal strip-Complete with 5 terminals. 3215Plug-Microphone cordp

38、lug. 7370Cover-Terminal strip cover for 7295 3216Cushions-Microphone unit suspension rubbers- Package of 6 8710Transformer-Power uansformet-105-125volts, 50-60 cycles 3261Cap-Rubber record drive cap-Package of 5 8711Transformer-Audio transformer 3278Bearing-Rotor shaft fibre thrust bearing and cork

39、button-Package of 10 8712Capacitor pack-Comprising one 2.0 mid. one 3.0 mid., one 0.1 mid., and two 0.5 mid. capacitors in metal container -50-60 cycles 3279Screw and nut-Rotor shaft thrust bearing adjust- ing screw and lock nut-Paekage of 10 8749Transformer-Powertransformer -105-125volts, 25-40 cyc

40、les 5280Washer-Metalwasher-Locatedonturntable spindle underneath gear reducing unit-Package of 20 8750Transformer-Power transformer -220 volts, 50-69 cycles. 3281Pawl-Gear reducing pawl with mounting stud 8751Capacitor pack-Comprising two 4.0 mid., two0.5 6119Motor hanging stud-Package of 6 mid. and

41、 one 0.1 mid. capacitors in metal con- tainer. 6120Screw-For. holding turntable spindle bearing and grease cap-Package of 10 10907Fuse-Glass type -3 amperes-Package of 5. .6121Bearing-Turntable spindle bearing end grease cap ADDITIONS AND CHANGES 6216Rod-Automatic brake trip rod with nnt-Package of

42、5 Add 6218Screw and washer-Motor board mounting screw and washer-Package of la 7054Cord - Power cord. 6221Cover-Pickup cover 3085Capacitor - 400 mmfd.6222Pickup-Pickup unit complete 3219Resistor -18,000 ohms (Not used RE -20). 6223Cable-Power cable from motor and motor switch to S. P. U. terminalboa

43、rd. 6224Receptacle-Tungstone needle box receptacle ChangeR-50 and R-55 only. 6225Volume control-Record volume control-Complete 2882 to 7369 - Socket with mounting nut and washer 7370 to 7296 - Cover 6226Transformer-Phono input transformer 6227Resistor board assembly -Comprising one 200,000 Change- F

44、or RAE -59 only. ohms-Carbon type-X watt resistorand one 2400 mmfd. tooth pick capacitor on board 6114 to 5817 - Resistor 6228Resistor -200,000 ohms-Carbon type-X watt- Stock No.2240 Resistor- 33,000 ohms (Used RE -20 only) Package of 5 MOTOR BOARD AND MISCELLANEOUS 6229Cable -30 shielded red cable

45、from selector switch to volume control-Package of 2 ASSEMBLIES 6230Cable -30 shielded green cable from selector switch to volume control-Package of 2 X-75 Board-Motor board 6231Cable -18 shielded black cable from selector switch X.76Block-Microphone wood blockto pickup terminal board-Package of 2 26

46、14Switch-Automatic brake switch 6232Boa-Needle box with lid-Package of 2 2620Cushion-Pickup rubber cushions -Comprising1 damper and two pivot cushions-Package of 5 sets. 6233Weight-Recording weight 2749Capacitor -2400 mmfd6234 Escutcheon-Speed escutcheon plate with mounting screws-Package of 2 2767S

47、pring-Pickup magnet retaining spring-Package of 10 6235Escutcheon-Selector switch escutcheon-Package 2768Armature-Pickup armature of 5 2770Plate-Pickup damper plate-Package of 17084Cover-Turntable cover 2771Screw-Pickup damperplatemounting screw- 7151Back-Pickup housing back Package of 10 7305Gear r

48、educing unit complete 2779Pointer -Selector switch pointer-Package of 10. 3052 Screw assembly-Pickup pole shoe mounting screw assembly comprising screw, ant and washer- 7327Mechanism-Microphone mechanism complete with cord Package of 10 seta7375 Resistor -13175 ohms tapped porcelain resistor 3137 En

49、ob-Selector switch knob-Package of 57387Reactor-Tone compensating reactor complete with 3157 Gear-Driving gear-Located on turntable spindle mounting bracket above too Plate 7388 Spindle-Turntable spindle withfibregear -110 3159 Friction brake -Gear redsteimg friction brake spring volts or 220 volts-b0 cycles with felt pad-Complete with mounting rivet-7339Rotor and shaft -110 volts or 220 volts -60 cycles Package of 4 7390Motor mounting waebers nd springs-Comprising 3161 Spring-Shift lever spring-