RCA-Victor-Co-Inc-45E 电路原理图.pdf

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1、PAGE 475-C Model 45E Series Chassis No. RC -435A Five -Tube, Single -Band, AC -DC Superheterodyne Receiver Model 45E Maple Finish Model- 45E -M Mahogany Finish Model 45E -W Walnut Finish Electrical and Mechanical Specifications FREQUENCY RANGE 540-1,720 Ice POWER SUPPLY RATINGS Intermediate Frequenc

2、y 455 kc A -C Rating 105-125 volts, 50-60 cycles, 30 watts D -C Rating 105-125 volts, direct current, 30 watts TUBE COMPLEMENT (1) RCA-12SA7 1st -Detector -Oscillator POWER OUTPUT (125 volt, 60 cycle supply) (2) RCA-12SK7 I -F Amplifier Undistorted .6 watts Maximum 2.0 watts (3) RCA-12SQ7 2nd -Detec

3、tor, 1st A -F, and A.V.C. (4) RCA-50L6GT Power Output LOUDSPEAKER (5) RCA-35Z5GT Half -Wave Rectifier Type 5 -inch permanent magnet dynamic Cabinet Dimensions (inches) Height 25$, Width 16, Depth 10 Dial Lamp (1) Mazda 51, 7.5 volts, 0.2 amp. Weight (net) 17 pounds LOOP ) 1 /Tl 15T DET. & OSC. 12SA7

4、 I.F AMPL. 12510 90 1. F TRANS SSUC - -11,REENt 20 DET,A.F. &A.VC. 1250 40v. 2P F. TRANS. ASS KC l0 10w GREEN Ce C4 VOL. 3,0 CONTR. REO BLACK 47,000, 150,000 50 o5 _ t IOW 220.000- 220,000 005 01 OUTPUT 50L6GT L70,000 vwCOIKROLA 00P . Vl155LA II 501665 MUST / I C4 2.,1E Ca 1 262,V, tC6 12SA7 _,C KC

5、p 717 I 1r CI CE l1(0 TUBE ANo TRIMMER LOCATIONS LOOP CONNECT IONS INDICATES CHASSIS INDICATES COMMON WIRING S0LATED FnGM CHASSIS 35Z5GT-RECT. RC -435A T-79709-6 .005 150., TV.C n2v. 1500 RED M gLUE OS 907 151505 SOL66T IE1A7115K7 1E507 n n r n q SWITN LIN VVV555 w u5E canRRLwO- Schematic Circuit Di

6、agram PERMANENT- MAGNET DYNAMIC SPEAKER I BMED. 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 PAGE 476-C 45E Alignment Procedure Output Meter Alignment.-Connect the meter across the voice coil, and turn the receiver volume control to maximum. Tes

7、t-Oscillator.-Connect the low side of the test -oscillator to the receiver chassis, through a .01 mfd. capacitor, and keep the out- put as low as possible. Pre -Setting Dial.-With gang condenser in full mesh, the pointer should be adjusted so that top edge of pointer just touches rivet in dial plate

8、. Antenna.-The set is equipped with a built-in loop antenna. If an outdoor antenna is used, it may be connected to the ANT terminal on rear of cabinet. It should not be longer than 100 feet, including lead-in. If it is longer, connect a 100 to 200 mmf. ca- pacitor in series with the lead-in. Power -

9、Supply Polarity.-For operation on d -c, the power plug must be inserted in the outlet for correct polarity. If the set does not function, reverse the plug. On ac, reversal of the plug may re- duce hum. Victrola Attachment.-A jack is provided on the rear of cabinet for connecting a Victrola Attachmen

10、t into the audio -amplifying cir- cuit. The cable from the Victrola Attachment should be terminated in a Stock No. 31048 plug to fit the jack. Steps Connect the high side of test- oscillator to- Tune test-osc. to- Turn. radio dial to- Adjust the fol - lowing for ma:. peak output- Tuningcondenser sta

11、tor (osc.) in series with .01 mfd. 455 kc Quiet point at 1,600 kc end of dial C1, C2, C3, C4 (1st and 2nd I -F transformers) 2 Antenna term. of ant. loop in series with 100 mmfd. 1,720 kc Full (clockwise out of mesh) C5 (oscillator) 3 1,500 kc Resonance on 1,500 kc signal C6 (antenna) Precautionary

12、Lead Dress 1. Dress 2nd I -F green lead close to chassis and under other parts. 2. Dress lead from gang condenser to grid of 12SA7 close to chassis and away from 12SQ7 socket. 3. Dress blue 1st I -F lead under volume control close to chassis. 4. Dress blue 2nd I -F lead close to chassis and behind 1

13、2SK7 socket. Replacement Parts Insist on genuine factory -tested parts, which are readily identified and may be purchased horn authorized dealers. No. DESCRIPTION Stoock o. DESCRIPTION CHASSIS ASSEMBLIES 12679 Resistor -2.2 meg., * watt 13057 12488 Capacitor -60 mmfd. Capacitor -250 mmfd. P 33293 33

14、557 32537 Shaft-Tuning knob shaft and bushing Socket-Dial lamp socket Socket-Tube socket 12952 Capacitor -300 mmfd. 31615 Spring-Drive cord spring 4838 Capacitor-.005 mfd. 33296 Spring-Retaining spring tor drum 32787 4839 Capacitor-.05 mfd. Capacitor -0.1 mfd. 32966 Transformer-First I -F transforme

15、r 12484 Capacitor -0.25 mfd. 32967 Transformer-Second I -F transformer 33952 Capacitor-Electrolytic, 8 mfd. 33291 Volume control and switch 33850 Capacitor-Electrolytic, 2 sections 30 mfd. each SPEAKER ASSEMBLIES 34259 Coil-Oscillator coil (39213-1) 32963 Condenser-Variable tuning condenser 32634 Co

16、rd-Drive cord 33853 Cone-Speaker cone and voice coil 33662 Drum-Drive drum 33851 33854 Speaker complete Trannsformer-Output transformer 33295 Indicator-Dial pointer 11765 33663 Lamp-Dial lamp Loop-Antenna loop complete MISCELLANEOUS ASSEMBLIES 33294 13428 Pulley-Drive cord pulley Resistor -150 ohms,

17、 watt 33852 Dial-Glass dial scale . 14561 Resistor -220 ohms, watt 34015 Knob-Volume or tuning knob-Models 45EM, 3153 Resistor -1,500 ohms, 1 watt 45EW only 13998 Resistor -22,000 ohms, watt 34016 Knob-Volume or tuning knob-Model 45E 12412 Resistor -47,000 ohms, watt only 14560 Resistor -100,000 ohms, watt 3.40.43 Spring-Retaining spring for knobs Stk. 34015 12264 12199 Resistor -220,000 ohms, watt Resistor -270,000 ohms, watt and 34016 Additional Replacement Part: Stock No. 33139 Rubber grommet for dial shaft 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN