RCA-Victor-Co-Inc-1X 电路原理图.pdf

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1、MANUAL OF 1941 MOST POPULAR SERVICE DIAGRAMS COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN PAGE -C RCA Models 1 AX , 1 AX2 , 1X, 1X2 and 25X VICTOR Chassis No. RC -1003A RC -1003 RC -1003 RADIOLA 510, 511, 510 (3RD PROD), 520 2ND PROD. RC -10035 RC -1003D Five -Tube, Single

2、 -Band, AC -DC Superheterodyne Receiver .11 odd I Model lAX (Mahogany Plastic) .Model 1X2 ModellAX2 (Antique Ivory) 25 X Height 7i -in. . . Height Width Depth 68 -in 9 -in. 5h -in. Radiola 510 (Mahogany Plastic) Radiola 511 (Antique Ivory) Width Depth 11g -in. . 6 3/16 -in. Specifications 520 FREQUE

3、NCY RANGE 540-1,720 ke POWER OUTPUT (125 vOlts, 60 cycle supply) Intermediate Frequency 455 kc Undistorted 0 8 watts Maximum 1 2 watts POWER SUPPLY RATINGS 105-125 volts, direct current, or 50-60 cycles 30 watts LOUDSPEAKER (RL -81.B2) 5 inch permanent magnet 5 inch electro -dynamic Alignment Proced

4、ure Output Meter Alignment.-Cunncrt the meter acmes the voice coil and turn the receiver volume control to maximum. Electronic Voltmeter.-The electronic voltmeter in the Chanalyst ur V,ltOhmyst provides an unexcelled outp+at indicator. It should be antnected to the AVC bus. Test-Oscillator.-Fur 1-F

5、alignment. connect the low side of the test -oscillator to thereceiver chassis through a .01 mfd. capacitor, and keep the output as low as possible. Pre -Setting Dial. -With gang condenser in full mesh, the pointer hould be adjusted so that it is vertical. Power -Supply Polarity.-For operation on d

6、-c, the power plug must he inserted in the outlet for correct polarity. if the set does not function, reverse the ping. .On a- c. reversal of the plug may reduce hum. SUBSTITUTE SPEAKERS WHEN ORDERING REPLACEMENT PARTS FOR SPEAKERS, NOTE., THE IDENTIFICATION NUMBER STAMPED ON THE SPEAKER FRAME. IF T

7、HE NUMBER STAMPED ON THE SPEAKER DOES NOT APPEAR IN THE FOLLOW- ING LIST, ORDER THE REQUIRED PART BY DESCRIPTION, AND SPECIFY THE IDENTIFYING NUMBER STAMPED ON THE SPEAKER AND THE RE- CEIVER MODEL NUMBER. See Listing Below Steps Connect the high side of test- oscillator to- Tune test-osc. to- Turn r

8、adio dial to- Adjust the follow - ing for max. peak output 1 I -F grid, in series with .01 mfd. 455 kc Quiet point 1,800 kc end of dial C8, C9 2nd I -F Transformer 2 1st Det. grid in series with .01 mfd. C6, C7 1st I -F Transformer 3 Ant. terminal in series with 100 mmfd. 1,720 kc Gang at minimum C3

9、 (osc.) 4 Radiated signal 1300 kc g equenlcy Cl (ant.) 5 Repeat steps 3 and 4. SPEAKER LISTING MODELS 1X, 1X2,. 1AX, lAX2 RL -81B2, RL -88A3, RL -86A1, RL -86B1, RL -8854 MODELS 25X, 510 (RC -1003D) , 520 RL -8851, RL -88B4, 92379- 1 MODEL S 510 (RC -1003B) , 511 RL -81B2, RL -88 A3 NOTE: The follow

10、ing speakers may have been used as a substitute for the speaker in any model which originally called tor the RL -81-B2: Speaker Stamping Cone No. 92161-3 92161-4 92161-5 92322-2 92374-1 38352 39535 38352 39536 39537 RL -81-B2 RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A

11、. 收音机爱 好者资料库 RadioFans.CN PAGE 2-C IX, IX2, IAX, IAX2, 25X, 510, 511, 520 1 a I- o J o Go C(o LL o o D I , L_ Hr I u CK C14 is .02 mfd. C17 Is .02 mfd. Some Node Is C24 Is . 1 mfd. R4 is 3.3 neg. NAM. VN o o ao N o r 4 ? D o , : i , _J v I1 U 4 m O. z a321fl 11 + N a en m -1I N 收音机爱 好者资料库 RadioFans.

12、CN PAGE 3-C IX, IX2, IAX, IAX2, 25X, 510, 511, 520 SUBSTITUTE SPEAKERS OUTPUT TUBE RECT TUBE B 30 t- MFDY OUTPUT TUBE - RECT. TUBE +B 50 FIELD COIL 00 120on OUTPUT TRANS. BLUE VCOILoc e CHASSIS GND. ( 5o MFD. CONNECTIONS FOR PERMANENT -MAGNET SPEAKER 50 MFG/. OUTPUT TRANS C. CHA5515 -in.) . No. 3372

13、6 Capacitor Changes: C14 changed from .015 to .02 mfd., No. 36248 C17 changed from .085 to .02 mfd., No. 36248 C24 (1AX, 1AX2) changed from .2 to .1 mfd., No. 43763 R4 changed from 2.2 to 3.3 megs., No. 12928 MODELS 11 AND 112 (RC - 1003) REFER TO MODELS lAX AND 14X2 Add Stock No, 36234 Coil - Oscil

14、lator Coil Delete Stock No - 38801 Coil and 34505 Capacitor MODELS 510 AND 511 (RC - 10038) REFER 1D MODELS 1AX AND 1AX2 Change the following Stock Nos. From To 37913 37991 Dial - Dial scale 37014 36788 Indicator - Station selector indica- tor. Resistor - 220,000 ohms Resistor - 2.2 meg. Knob - Ivor

15、y control knob Knob - Mahogany control knob 12284 14583 12679 3084g 371 38789 30 883 34428 Stock No. 51V 30900 Spring not used with Models 510A and PAGE 4-C IX, 1X2, IAX, IAX2, 25X, 510, 511, 520 Replacement Parts Insist on genuine factory -tested prb, which are readily Identified and may be purchas

16、ed horn authorized dealers. STOCK No. DESCRIPTION STOCK No. DESCRIPTION 37359 11315 4870 32787 36301 36234 37911 35344 32634 37913 37914 11765 37915 35993 30189 30492 14583 30648 30649 30271 38846 .,5315 31251 31418 36232 37364 35056 33726 39774 35079 33006 30863 30900 35097 35332 35348 37359 4937 3

17、6248 32787 36234 37911 35344 32634 37991 36786 11765 37915 35993 30189 30492 14583 30648 12928 30271 38846 34449 31251 31416 35098 36232 37364 35056 33726 39778 37916 35079 33317 35069 33008 34428 MODEL 2sX CHASSIS ASSEMBLIES (RC -1003) Capacitor -1 section of .005 mfd., and 1 section of 300 =if d.

18、Capacitor-.015 mfd. Capacitor-.025 mfd. Capacitor-.05 mfd. Capacitor-Electrolytic comprising 1 section of 30 mfd., 150 volts, and 1 section of 50 mfd., 150 volts Coil-Oscillator coil Condenser-Variable tuning condenser Control-Volume control and power switch Cord-Drive cord (approx. 17 -in. overall

19、lgth.). Dial-Dial scale Indicator-Station selector indicator Lamp-Dial lamp Loop-Antenna loop complete Plate-Dial plate-less dial scale Resistor -120 ohms, watt Resistor -22,000 ohms, watt Resistor -220,000 ohms, watt Resistor -470,000 ohms, watt Resistor -2.2 meg., watt Resistor -4.7 meg., watt Sha

20、ft-Tuning knob shaft Socket-Dial lamo cocker Socket-Tube socket Spring-Drive cord spring Transformer-First I.F. transformer Transformer-Second I.F. transformer Transformer-Output transformer Washer-C washer for tuning knob shaft MISCELLANEOUS ASSEMBLIES Back-Cabinet back Crystal-Dial scale crystal F

21、eet-Rubber feet-Pkg. of 4 Knob-Control knob Spring-Retaining spring for knob RADIOLA 510 AND 52U CHASSIS ASSEMBLIES (RC -1003-D ) Can-Shield can for 1st I.F. transformer Can-Shield can for 2nd I.F. transformer Capacitor-Electrolytic comprising 1 section of 20 mfd., 150 volts, and 1 section of 30 mfd

22、 , 150 volts Capacitor-Comprising 1 section of .005 mfd , and 1 section of .0003 mfd. Capacitor-.01 mfd Capacitor-.02 mfd Capacitor-.05 mfd. Coil-Oscillator coil Condenser-Variable tuning condenser Control-Volume control and power switch. Cord-Drive cord (approx. 1811 -in. overall length) Dial-Dial

23、scale Indicator -Station selector indicator Lamp-Dial lamp Loop-Antenna loop Plate-Dial plate-less dial Resistor -120 ohms, watt Resistor -22,000 ohms, watt Resistor -220,000 ohms, watt Resistor -470,000 ohms, watt Resistor -3.3 meg., watt Resistor -4.7 meg., watt Shaft-Tuning knob shaft Socket-Dial

24、 lamp socket Socket-Tube socket Spring-Drive cord spring Spring-To hold I.F. transformers in shield cans Transformer-First I.F. transformer-less shield can Transformer-Second I.F. transformer - less shield can Transformer-Output transformer Washer-C washer for tuning shaft MISCELLANEOUS ASSEMBLIES B

25、ack-Cabinet back (Radiola 520) Back-Cabinet back (Radiola 510, 3rd Prod.) Crystal-Dial scale crystal Fastener-Push fastener to hold back (Radiola 510, 3rd Prod.) Fastener-Push fastener to hold crystal (Radiola 510, 3rd Prod.) Feet-Rubber feet-Pkg. of 4 Knob-Control knob 35570 37812 32907 39448 39447

26、 39995 39994 AKER ASSEMBLIES (RL -81B2) Cone-Cone complete with voice coil Speaker -5 -inch permanent magnet speaker com- plete with cone and voice coil-less output transformer (RL -86B-1) (RL -86B-4) Cap-Dust cap Coil-Field coil -350 ohms Cone-Cone complete with voice coil (92379-1) Coil-Field coil

27、 -350 ohms Cone-Cone complete with voice coil NOTE: If the stamping on speaker in instru- ment does not, agree with above speaker number, order replacement parts by referring to model number of instrument, number stamped on speaker, and full description of part required. NUMBER STAMPED ON SPEAKER CO

28、NE AND VOICE COIL STOCK No. FIELD COIL STOCK No. OUTPUT TRAN S. STOCK 10. RL -86-A3 RL -86-B1 R L- 86-B 4 92161-3 92161-4 92161-5 92322-2 92374-1 35570 39447 39447 38352 395.35 38352 39536 39537 39543 39448 39448 PM PM PM PM PM ALL III SPEAKERS 359M ALL PM SPEAKERS 37912 92574 92161-4 Identifying Sk

29、etches of Five PM Speakers. PAGE 5-C MODEL HF -1 Eight -Tube, Single -Band, Electric -Tuning, A -C, Superheterodyne Electrical Specifications Frequency Range 540-1,550 kc 2 Stations between approx. 540-1,160 kc (buttons 7 and 8) 3 Stations between approx. 630-1,230 kc (buttons 4, 5, and 6) 3 Station

30、s between approx. Intermediate Frequency 780-1,550 kc (buttons 1, 2, and 455 3) kc HADIOTRON COMPLEMENT (1) RCA -6A8 (2) RCA -6K7 (3) RCA -6R7 (4) RCA -6J5 (5) RCA -6J5 (ti) RCA -6 F6 (7) RCA -6F6 (8) RCA -5T4 First Detector-Oscillator, I -F Amplifier Second Det., A -F Amp., and A.V.C. Driver Phase

31、Inverter and Driver Power Output Power Output Full -Nave Rectifier A socket is provided for an RCA -6U5 or 6G5 Magic Eye Tun- ing Tube, to facilitate adjustments for electric tuning. Pilot Lamp Mazda No. 46, 6.3 volts, 0.25 amps. POWER SUPPLY RATINGS Rating A 105-125 volts, 50-60 cycles, 115 watts R

32、ating B 105-125 volts, 25-60 cycles, 115 watts POWER OUTPUT Undistorted 10 watts Maximum 12 watts LOUDSPEAKER Type 12 -inch Electrod5namic Impedance (v.c.) 2.25 ohms at 400 cycles l -F Alignment Procedure Cathode-ray Alignment is the recommended method for Model HFI. Connections for the oscillograph

33、 are shown in the chassis draw mg. Output Meter Alignment. -1f an output meter is used, connect it across the voice coil, and turn the receiver volume control to maximum. Test-oscillator.-For all alignment operations connect the low side of the test -oscillator to the receiver chassis, and keep the

34、output as low as possible to avoid a -v -c action. For additional details, refer to booklet RCA Victor Receiver Alignment. Push in button 8, and adjust the No. 8 trimmers and core to a quiet point near 600 kc. Leave the button pushed in for the follow- ing operations: Steps Connect the high side of

35、test -oscillator t0- test Tune to- Turn Fidelity switch to- Adjust the following for max. peak and symmetry- No. 1 6K7 I -F grid cap, in series with .001 mfd. 455 kc (20 kc sweep) - - - - L12 and L13 (3rd I -F transf.) (Refer to curve A) No. 2 6A8 lst-det. grid cap, in series with .001 mfd. 455 kc (

36、20 kc sweep) Position 4 (from left) Turn L4 and L5 (1st I. F) out as far as pos - sible. Peak L8 and L9 (2nd I -F), and then L5 and L4. Readjust L8 and L9 slightly if necessary. (Refer to curve B) No. 3 Turn selectivity switch to position 5. Response should be like curve C. No, 4 Turn selectivity sw

37、itch to position 6 (full clockwise). Response should be like curve D. No. 6 Follow Adjustments for Electric Tuning. CurveA Input to I -F grid. Curve B Input to 1st- det. grid, fidelity switch at position 4 (from left). Curve C Input to 1st- det. grid, fidelity switch at position 5 (from left). Curve

38、D Input to 1st- det. grid, fidelity switch at position 6 (full clock- wise), Model HF -1 Adjustments for Electric Tuning 1. Make a list of the desired eight stations, arranged in order from high to low frequencies. It is preferable to select strong local high -quality stations within a radius of 100

39、 miles. 2. Insert an RCA -6U5 or 6G5 Magic Eye tube in the six -prong socket on the chassis. Use an insulated screwdriver or alignment tool (such as RCA Stock No. 31031) for all adjustments. LEAVE THE FIDELITY SWITCH IN POSITION 3 OR 4 WHILE MAKING ADJUSTMENTS FOR ELECTRIC TUNING. 3. Remove the ante

40、nna lead-in from the A terminal and wrap it once around the green lead to the top cap of the 6A8 tube. (This provides capacity coupling between the antenna and the 6A8 grid.) 4. Push in button No. 1 and turn oscillator core No. 1 to bring in the first station on the list. Adjust the core carefully f

41、or peak output as indicated by the Magic Eye. Adjust link trimmer No. 1 for ntax. output. . 5. Remove the antenna lead-in from the 6A8 grid lead and con- nect the lead-in to the A terminal. Adjust antenna trimmer No. I and link trimmer No. 1 for peak output as indicated by the Magic Eye. (Clockwise

42、rotation of cores and trimmers tunes the circuits to lower frequencies, and counter -clockwise adjustment tunes the cir- cuits to higher frequencies.) 6. Push in button No. 2. Adjust oscillator core No. 2, antenna trimmer No. 2, and link trimmer No. -2 for the second station in the same manner. 7. F

43、ollow the same procedure for the remaining stations. FIDELITY . SW. ji? 161 DET 455 NC SEC. ADJ. 45514 C L13 - sec. ADJ. 455 BC 2n. F -g TRANS I.F. 415 6R7 2MD DE7.,A.F.,1 DRIVER & A.V. C. PUSH BUTTON SHAFTS POWER POWER ,C-O NOLa .ISW I ll pp Ip II pp II 11.0r6,., o G o CIRCUIT 1 2 3 4 5 6 7 8 01 ?4

44、 C 0 0 0 0 ANTENNA 0 0 0 0 0 0 0 0 OSCILLATOR 780- 630- 540- 15SONC 123014C 11601SC PHONO. JACK s SOCKET .4 FOR sus os 6G5 1 ,TUNING -.I TUBE 4 TS OUTP PHASE INVERTER & DRIVER T RECT. 5N -797-D RCA M FG. CO. INC. Radiotron and Trimmer Locations Precautionary Lead Dress 1. The green lead from the ant

45、enna coil to the switch, and the green lead from the link coil to the switch, should be dressed away from the oscillator coils, and free of other leads, chassis, and parts. 2. When replacing a dual trimmer, it must be installed so that the top plate (to which the adjustment screws make contact) is t

46、he ground side. This is particularly important on C39.C40, and C47 -C48, because the sections of these trimmers are of different capacity range and must be correctly oriented in the receiver. Grounding the top plate takes care of this. 3. Maintain color coding on output transformer (T2) as shown in the schematic diagram. This is necessary in order to obtain correct inverse -feedback action. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A.