RCA-Victor-Co-Inc-RC-410 电路原理图.pdf

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1、PAGE 584-C 91 1BPI SERIES Pre-setting Dial.-With gang condenser in full mesh, the pointer should lie horizontal. Alignment Procedure Output Meter Alignment.-li this method is used, connect the meter across the voice coil, and turn the receiver volume control to lnaxlmu Ill. Test-oscillator.-For all

2、alignment operations, keep the output as low as possible to avoid a -v -c action. Connect low -side of oscillator tR the receiver chassis. CHASSIS NO. R407 Steps Connect the high side of test- oscillator to- Tune test-osc. to- Turn radio dial to- Adjust the follow - ing for max. peak output- 1A7G 1s

3、t-Det. grid cap, in455 series withh .01 mfd. kc atQ iet point 1,600 kc end of dial Cl, C3, C4 (1 t and 2nd I -F transformers) 2 Antenna coil loop by means of one turn of wire placed near loop 1,720 kc Full clockwise C5 (oscillator) (out of mesh) 3 1,500 kc Resonance on 1,500 kc signal I C6 (antenna)

4、 Loop -Adjusting Coil-The second production of 94B PAseries incorporates a loop inductance adjustment coil (1,1) which is ad j usted at 60(1 kc. For hest performance, it is recommended that the alignment procedure be followed exactly as given. This will ensurr maximum sensitivity over the entire bro

5、adcast hand. CHASSIS NO. 407B Steps Connect the high side of test- oscillator to- Tune test-osc. to- Turn radio dial to- Adjust the follow - ing for max. peak output- 1 1A7G 1st-Det, grid cap, in series with .01 mfd. 455 kc Quiet point at 1,600 kc end of dial C11, C10, C9, C8 (1st and 2nd I -F trans

6、formers) 2 Antenna terminal, in series with 15 mmfd. 1,650 kc Full clockwise (out of mesh) C4 (oscillator) 3 Set antenna trimmer C2 approximately turn from maximum capacity 4 800 kc 600 kc signal Ll (ant.) s 1,500 kc 1,500 kc C2 (ant.) 6 Repeat steps 4 and 5 Replacement Parts Insist on genuine facto

7、ry -tasted parts, which are readily identified end may be purchased from authorized dealers. STOoCK DESCRIPTION STOCK N DESCRIPTION ASSEMBLIES CHASSIS ASSEMBLIES (RC -407) (RC -407-B) 13057 Capacitor -60 nunfd. 12488 Capacitor -250 mmfd. 34121 Capacitor -2 -gang variable tuning 12952 Capacitor -300

8、mmfd. 13057 Capacitor -60 mmfd. 5107 Capacitor-.0025 mfd. 12720 Capacitor -100 mmfd. 4838 Capacitor-.005 mfd. 30433 Capacitor -400 mmfd. 32787 Capacitor-.05 mfd. 33584 Capacitor-.005 mfd., 483932787 Capacitor -0.1 mfd. 4839 Capacitor-.05 mfd. Capacitor. -0.1 mfd. 33303 Capacitor-Electrolytic, 8 mfd.

9、 33303 Capacitor-Electrolytic-8 mfd. 33055 Coil-Oscillator coil 34592 Coil-Antenna loop adjusting coil 33060 Condenser -2 -gang variable tuning 32573 Coil-Oscillator coil 32834 Cord-Drive cord 34590 Control-Volume control and power switch. 32946 Drum-Drive cord drum 32634 Cord-Drive cord 33300 Loop-

10、Complete antenna loop 32946 Drum-Drive cord drum 32208 Plug -2 -contact plug for battery cable 34591 Loop-Antenna loop lean adjusting coil 32641 Plug -3 -contact male plug for battery cable 32208 32641 Plug -2 -contact plug for battery cable Plug -3 -contact plug for battery cable 14076 Resistor -82

11、0 ohms, I watt 12414 Resistor -560 ohms, watt 13715 Resistor -68,000 ohms, watt 12412 Resistor -47,000 ohms, watt 12264 Resistor -220,000 ohms, watt 13715 Resistor -68,000 ohmar watt 13730 Resistor -1 meg., watt 14020 Resistor -150,000 ohms, I watt 12679 Resistor -2.2 meg., watt 13730 Resistor -1 me

12、gohm, ; watt 13601 Resistor -10 meg., watt 12679 Resistor -2.2 megohm, watt 33305 Shaft-Tuning knob shaft and bushing 13167 Resistor -3.9 megohm, i watt 32595 Shield-Tube shield-less cap 13601 Resistor -10 megohm, watt 32537 Socket-Tube socket 33305 Shaft-Tuning knob shaft and bushing 30585 Spring-D

13、rive cord spring 32595 Shield-Tube shield less cap 33296 Spring-Drive drum retaining spring 31319 Socket-Tube socket 33301 Transformer-First i -f transfortner 30585 Spring-Drive cord spring 33302 Transformer-Second i -f transformer 33296 Spring-Drive drum retaining spring 34118 Transformer-let I.F.

14、transformer SPEAKER ASSEMBLIES 34119 Transformer -2nd I.F. transformer (39128-1) 33058 Speaker complete SPEAKER ASSEMBLIES 33062 Transformer-Output transformer (39128.1) MISCELLANEOUS ASSEMBLIES 35601 Cone and voice coil 33310 Dial-Glass dial scale 33058 Speaker-Complete . 33311 Escutcheon-Dial scal

15、e escutcheon 33062 Transformer-Output transformer 33006 Feet-Cabinet feet 33376 Handle-Carrying handle-Models 94BP61 MISCELLANEOUS ASSEMBLIES 94BP62, 94BP64 33377 Handle-Carrying handle-Model 94BP66 33310 Dial-Glass dial scale 33306 Knob-Black tuning knob-Model 94BP66. 34426 Disc-On-Off indicator di

16、sc (with flat of shaft 33308 Knob-Black volume control knob-Model hole opposite white segment in disc) 94BPRa 34774 Disc-On-Off indicator disc (with flat of shaft hole 90 counter -clockwise from white seg- 32895 Knob-Walnut tuning knob-Models 94BP62, ment in disc) 94BP81 33376 Handle - Carrying hand

17、le - Models 94BP-61, 33307 Knob-Walnut volume control knob-Models -62, -84 94BP62, 94BP81 33377 Handle-Carrying handle-Model 94BP-66. 33312 Nut-Speed nut to mount dial 33306 Knob-Black tuning or volume control and 31646 Spring-Knob retaining spring power switch knob for Model 94BP-66 32571 Knob-Tan

18、tuning or volume control and power switch knob for Models 94BP-61, -64 32895 Knob-Walnut tuning or volume control and power switch knob for Model 94B P-62 33312 Nut-Speed nut to mount dial 31646 Spring-Knob retaining spring 收音机爱 好者资料库 RadioFans.CN PAGE 58 5-C MODEL 94BP4 SERIES Chassis No. RC -410 F

19、our -Tube, Single -Band, Battery -Operated, Superheterodyne Receiver REMOVE THIS BLOCK, PLUG IN CABLES AND PLACE BATTERIES IN CABINET AS SHOWN, IN Tt1C ORDER INDICATED. REPLACE CLAMPING BLOCK. MODELS 94BP4-B, -C, -R Technical Information and Service Data: These models are identical to Model 94B P4 e

20、xcept for the material covering the case. B indicates Buffalo covering. C indicates Cowhide covering. R indicates Rawhide covering. Electrical and Mechanical Specifications Frequency Range 550-1,560 kc Intermediate Frequency 455 kc RCA TUBE COMPLEMENT (1) RCA -1A7 -C 1st-Det.-Osc. (2) RCA1N5-G I -F

21、Amplifier (3) RCA -1H5 -G 2nd-Det., A -F, and A.V.C. (4) RCA -105-G Output BATTERIES REQUIFeED A, one 1.5 volt dry plug -type A, 21 -in. (No. 742) B. two 45 volt dry plug -type B, 21 -in. (No. 732) CURRENT CONSUMPTION A 0.24 ampere-B, 9.0 milliamperes x 21 -in. x 4 -in. a 4 -in. x Elimination of Aud

22、io Oscillation or Howl: Should the green lead from No. 8 pin (to volume control) of the 105-G socket be in too close proximity to the blue lead connected to the same socket, a high pitched audio oscilla- tion is likely to result. The two leads should be spaced from each other as far as possible. It

23、is also important that the green lead from tun- ing condenser to loop antenna be dressed be- tween the 105-G and 1115-G tubes. Model 94BP4 POWER OUTPUT Undistorted Maximum 0.10 watt 0.21 watt LOUDSPEAKER Type 5 -inch permanent magnet dyuami, Voice -coil Impedance 2.2 ohms at 400 cycles Height Width

24、Depth Cabinet Dimensions (inches) 73; 14 8i, Chassis Base Dimensions (inches) 2 Vi 51 Over-all Chassis Height 61 inches Weight-Shipping weight, less batteries 121 pound Net weight, with batteries 16 p111nd. Tuning Drive Ratio S to 1 Additional Replacement Parts: Stock No. 33010 Knob-Tuning knob 3277

25、8 Knob-Volume knob (with dot) Replacement Parts Insist on genuine Factory -tested parts, which are readily identified and may be purchased From authorized dealers. STOC K No. DESCRIPTION STOCK No. DESCRIPTION CHASSIS ASSEMBLIES 12679 Resistor -2.2 meg., t watt (RB) (RC -410) 13167 13801 Resistor -3.

26、9 meg., watt (R4) Resistor -10 meg., i watt (R3, R6) 32592 Bracket-Dial bracket 14887 Retainer-Tuning knob shaft retainer 12607 Cap-Shield cap for first i.f. transformer 4669 Screw No. 8-32 x t set screw for drum, Stock 12581 Cap-Shield cap for second i.f. transformer No. 30701 32598 Cap-Shield cap

27、for 1H5G 32609 Shaft-Dial pointer shaft and pulley 32596 Cap-Tube shield cap 32597 Shaft-Tuning knob shaft 14021 Capacitor -22 mmfd. (C18) 32595 Shield-Tube shield-less cap 12948 Capacitor -33 mmfd. (C20) 31251 Socket-Tube socket 30949 Capacitor -56 mmfd. (C3, C4, C5, C8) 30956 Socket -2 -contact fe

28、male 12723 Capacitor -56 mmfd. (C7) 14191 Spring-Condenser drive cord spring 30904 Capacitor -100 mmfd. (C9) 30631 Spring-Pointer drive cord spring 12720 Capacitor -100 mmfd. (C12) 32263 Transformer-First i.f. transformer (L3, L4, 30433 Capacitr-470 mmfd. (C15) C3, C4) 12635 Capacitor -1,000 mmfd. (

29、C10) 32264 Transformer-Second i.f. transformer (L5, L8, 5107 Capacitor-.0025 mfd. (C13, C14) C5, C8, C9) 14393 Capacitor-.01 mfd. (CB) 32594 Volume control and switch (R5, Sl, S2) 4886 Capacitor-.05 mfd. (Cll). 32187 32148 Capacitor -8 mfd., 150 volts (C19) Coil-Oscillator coil (L1, L2) MISCELLANEOU

30、S ASSEMBLIES 32591 Condenser -2 -gang variable (Cl, C2, C16, C17) 32634 Cord-Condenser and pointer drive cord 32602 Bezel-Dial bezel and crystal 32593 Dial-Dial scale 32163 Cone-Speaker cone and voice coil (L7) 30701 Drum-Drive cord drum 32600 Escutcheon-Knob escutcheon and screen 32605 Indicator-Di

31、al indicator pointer 32603 Grille-Speaker grille Handle-Carrying handle 32208 Plug -2 -contact male for - A leads 32633 32641 Plug-S-contact male for B leads 14076 Resistor -820 ohms, watt (R9) 32804 Loop-Antenna loop complete 13715 Resistor -68,000 ohms, watt (R2) 32601 Retainer-Knob escutcheon ret

32、ainer 14560 Resistor -100,000 ohms, watt (RIO) 32182 Speaker complete (84228-3) 12264 Resistor -220,000 ohms, watt (Rl) 11349 Spring-Knob retaining spring 13730 Resistor -1 meg., watt (R7) 32164 Transformer-Output transformer (T1) 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 收音机爱 好者资料库 RadioFans.CN