RCA-Victor-Co-Inc-RC-462B 电路原理图.pdf

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1、MANUAL OF 1941 MOST POPULAR SERVICE DIAGRAMS MODELS Chassis Nos. 15X, 16X-1, 16X-2 and 16X-3 RC-462, RC-462A and RC-462B Six-Tube, Single-Band, AC-DC, Superheterodyne Receivers MODEL 15X- SCHEMATIC DIAGRAM 收音机爱 好者资料库 RadioFans.CN PAGE 337-C MODELS 15X, 16X-1, 16X-2 16X-3 and 36X Chassis Nos. RC -462

2、, RC -462A RC -462B RC -462-A Six -Tube, Single -Band, AC -DC, Superheterodyne Receivers MODEL 16X3 MODEL 15X WALNUT MODEL 16XI WALNUT MODEL f6X2 IVORY 36X Electrical and Mechanical Specifications FREQUENCY RANGE 535-1,720 kc Weight Model Height Width Depth (net) Type Cabinet INTERMEDIATE FREQUENCY

3、455 kc Chassis RC -482 15X 73 in. 12 in. 7 in. 71 lbs. Mahogany Plastic (1) RCA12SK7 RF Amplifier Chassis RC -462A (2) RCA-12SA7 1st Det.-Osc. 16X-1 73 in. 12 in. 7 in. 7i lbs. Mahogany Plastic (3) RCA-12SK7 I -F Amplifier 16X-2 73 in. 12 in. 7 in. 71 lbs. Ivory Plastic (4) RCA-12SQ7 2nd Det., A.V.C

4、., and A -F Amplifier Chassis RC -462B (5) RCA -35L6 -GT Power Output (6) RCA -35Z5 -GT Rectifier 16X-3 8 7/16 in lai in. 71 in. 9 lbs. Wood Height Width Depth PILOT LAMP. Mazda No. 51, 6-8 volts, 0.2 amp. Cabinet Dimensions 3 6 X 83 -in. . 143 -in. . 71 -in. POWER OUTPUT LOUDSPEAKER (RL -81A-5) Und

5、istorted 0.9 watts Type 5 -inch permanent -magnet dynamic Maximum 1.4 watts V.C. Impedance 4 ohms at 400 cycles TUBE COMPLEMENT POWER SUPPLY RATING 105-125 volts, AC, 50 or 60 cycles, or DC 30 watts Alignment Procedure Output Meter Alignment. - If this method is used, connect the meter across the vo

6、ice coil, and turn the receiver volume control to maximum. Test -Oscillator. - For all alignment operations, keep the output as low as possible to avoid a -v -o action. Precautionary Lead Dregs: 1. .01 mfd. capacitor from output plate to cathode to be dressed as far as possible away from .015 mfd. 1

7、st audio grid condenser and volume control terminals to eliminate audio howl. 2. Filament lead to -pin No. 7 on 85L6 -GT socket to be dressed away from 1st audio grid. 3. Dress B+- lead on 12SK7 I.F. socket across bottom of socket between grid and plate contacts to aid reduction of grid plate capaci

8、tance. 4. Dress excess lead lengths of I.F. transformer, grid and plate leads into cana to aid shielding. 5. Dress filament leads of 35L6 -GT around 12SQ7 socket and into chassis corner to reduce hum. OUTPUT TUBE R E CT. TUSE. MFD +Ei o OUTPUT TRANS. CHASSIS GN D. O. CONNECTIONS FOR ELECTRO - MAGNET

9、 SPEAKER LOUDSPEAKER (RL -86-B1) Type V.C. Impedance 4 ohms at 400 cycles Tuning Drive Ratio. 5 -inch Electrodynamic 16-1 Steps Connect the high side of test-osc,ing ty_ Tune test- cast. to- Turn radio to- Adjust the follow - for maximum peak output 1 12SK7 I -F grid, in series with Quiet C23, C22 2

10、nd I -F 0.1 mfd. 455 kc Point at 1,700 transformer 12SA7 1st det. C21, C20 kc end 2 grid, in series with 0.1 mfd. of dial 1st I -F transformer 3 12SK7 R -F grid, in series with 1,720 kc 1,720 kc C18 (osc.) 0.1 mfd. 4 Radiation Loop 1,300 kc Signal frequency C18 (ant.) 5 Repeat steps 3 and 4 WHEN ORD

11、ERING REPLACEMENT PARTS FOR SPEAKERS, NOTE THE IDENTIFICATION NUMBER STAMPED ON THE SPEAKER FRAME, IF THE 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

12、NUMBER. MFG. CONNECTIONS Fop PERMANENT -MAGNET SPEAKER RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. 1., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 338-0 15X, 16X1, 16X2, 16X3, 36X 2.50 IM (AK. VAR01MG) TO/ wVCFSMJII C 0.7R .a.5p0 (w tFN1wa1 0.70 (A.STODNOI F (AK GIUWNDFD) /60r I,iA- 2 (

13、2.004C.1 (600 NC.) 111 t IASSxc.; r 6 nr.x11rr.Wt(4S5MCl (i.-. 5 YB SOCNFTS OF FCLOSLiNK OPERATION LOOP 12 $ K7 12 SA7 12507 R.F. IST DET.OSC. (,F NIA .1 I leoO. NOT! LOOP MDUCTANCE IeD.e EOMINRIes O%. MDUCTANCI e0 CKROMe NRIIs EericTos RAF TUNING CAR 47.5-A.s IFFEcrCTIvt OK. TUNING CAP. 341-IT2.3 i

14、 -12v. (500001 -12v. (1500.2) C IST. I.F TRANS o i1i 00_- 1k. RI! 2:0.00 ( 22000n !- ND I L r 10 wi CAP cef ACT TM C 25. CII NEL 90 4 MEe HlCi o. csOx T20 KC q CH E,tI, IS ANT SO CI l J ieeris I.4:. / IT F8J -. LVJ SSC 23 ADI SSCNc MC VOLTAGES !MOULD MOLD WITHIN 220% WITH 07 V. AC. SUPPLY. MEASURED

15、WITH CNANALYST OR voLTO0MV5T. 15X, lox -1, -2, -3 Dial Back Plate: In some production, the dial back plate and pulley assembly is changed from garnet maroon, Stock No. 36229, to Black, Stock No. 38767. Capacitor Changes: - In 2nd Production, the following capacitors are changed: C5 from 120 to 150 m

16、mfd., Stock No. 12725 C8 from .015 to .02 mfd., Stock No. 36248 C9 from 120 to 300 mmfd. C9 is built in with C10 (.005 mfd.) and the stock number of the dual unit is 37359. A00 W) 35 G OUTPUT RIO 4A,000A RS 220,000s JACK vN SA DATA USING RCA RIDeR CNANALYST si LIFO 1200 35Z5GT RECT. CMEtN+t kiED :09

17、 0 T ir Substitute Speaker: On 2nd Production of 15X, 16X-1, 18X-2, RL -86-B1 EM speaker is used in place of the original RL -81-A5 PM speaker. Replacement parts for the RL -86-B1 speaker are listed below. The alternte circuit arrange- ments are shown in accompanying diagrams. RL -86-B1 Stock No. De

18、scription 32907 Cap-Dust cap 39448 Coil-Field coil, 350 ohms 39447 Cone-Cone and voice coil The output transformer for this speaker is Stock No. 38994, ir 1.SN yA1% (AK. WORICI,KTI AN I LW7/5mgI7A(AK.RDUNDEO) (4N50K c.A)NI + M.SOr.) 125xfwK.r4YywD1U) (SSg.) (40000.) (800 010) 125K7 BOTTONI VIEW 0e T

19、IRE SOCKETS YELLOW INOUCTANCQ 180.1 AIK DEC. INDUCTANCE ISO MICROM5NICS enconv! 14.2.r TOME. CAA 41.5-05,5 GFFECTIve 050.111Iw18 CAR l5.7-112.3 12 SA7 ISTDeT.-ObC uCOG -2V (40O0.) -12v (1l0000.) 11,000A LS IA IRIB mrn 2lAO0A _1_ tST ).F 7RANS. Mr I0120. c 1 w T 3-2S -11. -11.0-0114.6 mows o5c. .sco1

20、L5 M o. l: 00 Ei 75 80 v 0.2 v. INPUT TO ANT. (Soo.) N T 1140 na0 err 12w7 A 4 imp p p (co-o i dN 0,7-114. i H ms AA , z LL 0 a G 0 (V L.9 PILO Li C/D F- 0 . Z. PAGE 340-C 15X, 16X1, 16X2, 16X3, 36X 15X, 16X SERIES Residual Hum: In some instruments the ground return of the volume control is made to

21、a lug on the power switch, and has a mutual path thru several inches of lead with the power circuit. This introduces a certain amount of hum into the first audio stage input. Hum due to this cause can be eliminated by removing the present grounding lead of the volume control from the power switch, a

22、nd connecting it directly to the chassis. Simple Wiring Change to Reduce Hum in Models 15X and 16X. SUBSTITUTE SPEAKERS 15X, 16X-1, 16X-2 NUMBER STAMPED ON SPEAKER CONE AND VOICE COIL STOCK No. FIELD COIL STOCK No. Output Trans. Stock No RL -86-A3 35570 39543 38994 RL -86-B1 39447 39448 38994 RL -86

23、-134 39447 39448 38994 92161-3 38352 PM 36800 92161-4 39535 PM 36800 92161-5 :38352 PM 36800 92322-2 39536 PM 36800 92374-1 39537 P5 36800 Replacement Parts Insist on genuine factory -tested parts, which are readily identified and may be purchased From authorized dealers. ST No.OCK DESCRIPTION S No.

24、 K DESCRIPTION CHASSIS ASSEMBLIES CHASSIS ASSEMBLIES Model 15X (RC -462) (RC -462-A) Model 16X1 (RC -462A) 36X Model 18X2 (RC -462A) 36239 Board-Terminal and receptacle board Model 18X3 (RC -462B) 36238 Bracket-Dial lamp bracket 36239 Board-Terminal and receptacle board 37359 Caopf 300 mmfdtion of .

25、005 mfd., and 1 section 36238 Bracket-Dial lamp bracket 12725 Capacitor -150 mmfd. 12724 Capacitor -120 mmfd. 34506 Capacitor-.0018 mfd. 84508 Capacitor-.0018 mfd. 4937 Capacitor-.01 mfd. 33584 Capacitor-.005 mfd. 4870 Capacitor-.025 mfd. 4937 Capacitor-.01 mfd. 5196 Capacitor-.035 mfd. 11315 Capaci

26、tor-.015 mfd. 32787 Capacitor-.05 mfd. 5198 Capacitor-.035 mfd. 4839 Capacitor -0.1 mfd. 32787 Capacitor-.05 mfd. 34505 Capacitor -0.2 mfd. 4839 Capacitor -0.1 mfd. 35348 Capacitor-Electrolytic comprising 1 section of 34505 Capacitor -0.2 mfd.-Models 16X1, 16X2, 16X3 30 mfd., 150 volts, and 1 sectio

27、n of 20 mfd., 36301 Capacitor-Electrolytic comprising 1 section of 150 volts 30 mid, and 1 section of 50 mfd., 150 volts 35096 Coil-Loop loading coil each . 36801 Coil-Oscillator coil 35096 Coil-Loop loading coil 36226 Condenser-Variable tuning condenser :10234 Coil-Oscillator coil-Model 15X 36242 C

28、ontrol-Volume control and power switch 36801 Coil-Oscillator coil-Models 16X1, 16X2, 16X3 32634 Cord-Drive cord (Approx. 49 -in. overall lgth.). 36226 Condenser-Variable tuning condenser 36237 Drum-Drive drum 98242 Control-Volume control and power switch 38236 Indicator-Station selector indicator 34

29、662 Cord-Drive cord-(Approx. 49 in. overall.) . 36231 Loop-Antenna loop complete 36237 Drum-Drive drum 38767 Plate-Dial back plate and pulley assembly corn - 38236 Indicator-Station selector indicator plete 38231 Loop-Antenna loop complete 36230 Pulley-Drive cord pulley and bearing rivet. 36229 Plat

30、e-Dial back plate and pulley assembly corn- 30189 Resistor -120 ohms, watt plete 30694 Resistor -3,900 ohms, i watt 36230 Pulley-Drive cord pulley and bearing rivet. 30492 Resistor -22,000 ohms, watt 12071 Resistor -120 ohms, watt 12412 Resistor -47,000 ohms, X. watt 6134 Resistor -1,200 ohms, 1 wat

31、t 14583 Resistor -220,000 ohms, watt 12955 Resistor -3,900 ohms, watt 30648 Resistor -470,000 ohms, watt 13998 Resistor -22,000 ohms, watt 12928 Resistor -3.3 meg., watt .-. . 12412 Resistor -47,000 ohms, watt 30271 Resistor -4.7 meg., X- watt 12264 Resistor -220,000 ohms, watt 30992 Resistor -10 me

32、g. watt 12285 Resistor -470,000 ohms, watt 30888 Screw-No. 81- self -tapping screw for adjusting 12928 Resistor -3.3 meg., 4. watt lamp bracket 30271 Resistor -4.7 meg., watt 38235 Shaft-Tuning shaft 13601 Resistor -10 meg., . watt 31251 Socket-Tube socket 30886 Screw-No. 6 self -tapping screw for a

33、djusting 31418 Spr:ng-Drive card spring lamp bracket 36228 Switch-Tone switch 36235 Shaft-Tuning shaft 36232 Transformer-First I.F. transformer 35345 Socket-Dial lamp socket-Model 15X- 36233 Transformer-Second I.F. transformer 31251 Socket-Tube socket 38994 Transformer-Output transformer 31418 Sprin

34、g-Drive cord spring 33726 Washer C washer for tuning shaft 36227 Switch-Tone switch-Model 15X 36228 Switch-Tone switch-Models 18X1, 16X2, 18X3 SPEAKER ASSEMBLIES 36232 36233 Transformer-First I -F transformer Transformer-Second I -F transformer (RL -86-B1, RL -86-B4) 36800 Transformer-Output transfo

35、rmer . 32907 Cap-Dust cap 33726 Washer-C washer for tuning shaft 39448 Coil-Field coil -350 ohms 39447 Cone-Cone complete with voice coil SPEAKER ASSEMBLIES 81-A-5) NOTE: If the stamping on speaker in instru- ment ment does not agree with above speaker 32907 Cap-Dust cap number, order replacement pa

36、rts by re - 35570 Cone-Cone complete with voice coil MISCELLANEOUS ASSEMBLIES ferring to model number of instrument. number stamped on speaker, and full description of part required. 36240 Back-Cabinet back-Models 15X, 16X1 36241 Back-Cabinet back-Model 16X2 MISCELLANEOUS ASSEMBLIES 36302 Back-Cabin

37、et back-Model 16X3 36308 Dial-Glass dial scale 39777 Back-Cabinet back 37831 Fastener-Push on fastener for backs-Models 39781 Dial-Glass dial scale 15X, 16X1, 16X2, 16X3 33006 Feet-Rubber feet-Pkg. of 4 38722 Knob-Tuning, tone or volume knob-Models 36722 Knob-Control knob 15X, 16X1, 18X3 11765 Lamp-Dial lamp 38723 Knob-Tuning, tone or volume knob-Model 30900 Spring-Retaining spring for knob 16X2 . 11765 Lamp-Dial lamp