RCA-Victor-Co-Inc-4QB 电路原理图.pdf

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1、PAGE 44-C MODELS 4QB and 4QB4 Chassis No. RC -440 and RC -440A Four -Tube, Three -Band, Battery -Operated Receivers and Model CV -111 (RS -95) A -C Power Unit Electrical and Mechanical Specifications FREQUENCY RANGES Model 4QB Standard Broadcast (A Band) Medium Wave (B Band) Short Wave ( Band) Model

2、 4QB4 Standard Broadcast (A Band) Short Wave (C Band) Long Wave (X Band) INTERMEDIATE FREQUENCY RC Tune COMPLEMENT (1) I2CA-iA7-G 1st Det.-Oscillator (2) RCA -INS -G I -F Amplifier (3) RCA -1H5 -G . 2nd Det., A.F., and A.V.C. (4) RCA -1C5 -G - Power Output POWER OUTPUT RATING Undistorted Maximum Wit

3、h Battery Supply 0.13 watt 0.23 watt With A Supply 0.20 watt 0.46 watt LOUDSPRA KEtt Type . 5 -inch permanent -magnet dynamic Voice -coil Impedance . 3 ohms at 400 cycles BATTERIES REQUIRED One is -volt V battery, and Two 43 -volt B batteries. or One 11 -90 -volt battery pack. CV -111 A -C POWER SUP

4、PLY UNIT Power Rating 105-125/200-250 volts, 50-60 cycles, 65 watts Rectifier Tube RCA -5T4 Ballast Resistor Tube Type 86892-3 Dial Lamp . Mazda 44. 6.3 volts, 0.23 atop. Dimensions (inches) 5 x 3; x 6 Net Weight 5 lbs. Models 4Q13 and 4QB4 Separate A and B batteries or an A -B bat- ter rack may he

5、used. 540-1,720 kc (555-174 m) 2.3-7.0 mc (130.42.8 m) 7.0-22 mc (42.8.13.6 m) 540-1,720 kc (555-174 nt) 5.8-18 mc (51.7-16.6 m) 145-385 kc (2069-779 m) 455 kc BATTERY DRAIN .:., 25 amp. B 10.5 ma. DIMENSIONS (inches) Height Width Depth Cabinet 9.1311.88 Chassis Base 2.12 5 Chassis Over-all Height 7

6、 inches Tuning Drive Ratio 18 to 1 BLUE (ANTEN.NNA) BLACK r !l (GROUND) ADAPTER CABLE SEPARATE A- CV -111 MOUNT SLOT I 2,1H.DET. A.FAVC I M-86892-3 t- 4LUG IM, 5T4 1,12E515RX C26 6BAND-2.5 MC POWER PLUG )i L4 6100 KC ALB oO CV -III MOUNTING SCREWS / Ce, / VICTROLA JACK DOTTED PORTION SlI0W5 24000KC

7、40.6 CV -111 POWER SUPPLY Model 4QB Top View Use minimum capacity peak if two peaks can be obtained. *Rock gang sightly for peak output. tDo not readjust L13 or L14 when test-osc. is applied to 1A7 -G grid. ttUse maximum capacity peak if two peaks can be obtained. POWER TWITCH 3 2 1C5 -G OUTPUT 1.48

8、V POWER PLUG RG VOLUME CONTROL 63 V. 1H5 -G 222DET. A.F. 6 A.V. C. O OSCILLOGRAPH CONNECTIONS VERTICAL HI TO THIS TERMINAL VERTICALO TO CHASSIS. INS -G I. F. AMP. PLATE CURRENTS 1 -1A7 -G 05C. 1.25MA. PET. .60 MA. 2-INS-G -1.20MA. -.025 MA. 4-IC5-G 5.5 MA. POWER SUPPLY- 1.48V A BATTERY, 90v. z B BAT

9、TER TOTAL DRAIN 10.5.MA. O =:1 259 I. F TRANS. POI. ADJ. 455 K C. VICTROLA JACK -J. -Ft 83 C22 C20 141 I.F. TRANS. PRI. ADJ. 455 KC -a- C 23 -, 05C-1500KC Qc D 1 TURN TO 187G CAP C25 RC -440 P-84690 ANT-2OMC. 83V. U m RANGE SWITCH C26 ANT. BOTTOM VIEW- REAR OF CHASSIS Model 4QB R -F Wiring Diagram a

10、nd Socket Voltages Voltages shown above are for battery operation. 收音机爱 好者资料库 RadioFans.CN PAGE 46-C 4QB, 4QB-4, CV -III Model 4QB4 Alignment Procedure (Refer to section on General Alignment Data) Steps Connect the high side of the test-osc.to- Tune test- osc. to- Turn radio dial to- Ad just the fol

11、low - mg for maximum peak output 1 1N5 -G I -F grid cap, in series with .01 mfd. 455 kc A Band, Quiet Point at high - frequency end 14 and L13 (2ndL L l Trans.) 2 1A7 -G 1st-Det. grid cap, in series with .01 mfd. L12 and L11 (1st I -F Trans.)t 3 Antenna lead, in series with 200 nunfd. 1,500 kc (200

12、m) 1,500 kc (152.5) A Band Preset L10 (osc.) core 5/16 -in. out Peak C24 (osc.) and C21 (ant.) 4 600 kc (500 m) 600 kc (33) L10 (osc.)* 5 Repeat steps S and 4. 6 360 kc (833 m) 360 kc (181) X Band Preset LB (osc.) core II -in. out Peak C23 (osc.) and C28 (ant.) 7 175 kc (1,710 m) 175 kc X(55) Band L

13、S (osc.)* 8 Repeat steps 8 and 7. 9 Antenna lead, in series with 300 ohms 15 me 15 me (148) C Band C27 (osc.)* C25 (ant.)tt 10 Antenna lead, in series with m 200 mfd. 1(200 kc (200 m) 1,500 kc (152.5) A Band C24 (Dec.) C27 C24 C23 15MC 1.5 MC 36OKC WTCH SWINGS v POWER SWITCH h VOLUME CONTROL OUTPUT

14、CV -111 MOUNTING SLOTS C21-1500KC AN 121.0E7 O5C. C28 360 KC L1O L8 BAND (BAND 600K 175KC SEC ADJ 455 KC SEC ADJ. 455 KC. C 25J 15 MC 44184 TRANS 1 284.DET. A F., AVC I M-86892-3 IPLUG-I, 5T4 ,RESI5TO1 - POWER PLUG J L O CV -III MOUNTING SCREWS VICTROLA JACK DOTTED PORTION SNOWS Cv-111 POWER SUPPLY

15、Model 4QB4 Top View *Use minimum capacity peak if two peaks can be obtained. *Rock gang slightly for peak output. tDo not readjust L13 or L14 when test-osc. is applied to 1A7 -G grid. t tUse maximum capacity peak if two peaks can be obtained. POWER SWITCH 3 2 I C5 -G OUTPUT 1.48V POWER PLUG VICTROLA

16、 JACK -fl 9 RS VOLUME CONTROL 83V. IN 5-G 28P DET. AP 90V. B BATTERY TOTAL DRAIN 10.5MA. OSC COILS X 0 250. I. F. TRANS. PRI. ADJ. 455 KC. 05CILLOGRAPH CONNECTIONS VERTICALHI TO THIS TERMINAL VERTICAL 0 TO CHASSIS. IN 5-G I.F. AMP. 83V. e 83V. 1.48V. m C23 C24 CSC-3GOKC OSC-1.5 MC q oQ OSC-15 MC. I

17、I BROWN BLUE YELLOW D2 I.F. TRANS PRI. ADJ. 455 KC L16 L17 -1 TO 1A7 -G CAP -GREEN 1A7 -G I?T DETbOSC RC -440A P -5469I ANT.C25 15MC. 83V BOTTOM VIEW- REAR OF CHASSIS GREEN ANT. COILS n 8t ANT. COILS RANGE SWITCH m Y e C28 ANT. KC. Model 4QB4 R -F Wiring Diagram and Socket Voltages Voltages shown ab

18、ove are for battery operation. 收音机爱 好者资料库 RadioFans.CN PAGE 47-C PAGE 48-C 40, 4QB-4, CV -III RANGE SWITCH SHOWN IN -X BAND (COUNTER LOCK - WISE FROM FRONT C21 2-20 MMF. ZAR L9 1.2 IL A LI G 5 c -2o MMF .71 C SEC. L3 PRI. 3611 LS X 1300 r C2 13-490 Z MMF. C23 - 5-60 C4 MMF /220MMF, L2 C FEI. A L4 SE

19、C. 3.5f1 U 1.26 56 MMF, CI L20 MMF I A1 -G 1 DET.g C. BOTTOM VIEW OF TUBE SOCKETS. C28 2-20 MIME C3 MMF. 52 cu .% 5 -Go MME MME O . G6 7 560 MME REAR 4700.1 MME= C27 2-20 MMF. CB .005 MFD. CS T13-480 MMF. CII O.I _ MRD. RI MEG. 2 C2 MED. 1N5-6 I,F AfviF R4 68,000- RE 10 MECS. cil = MFD.01 A+ To L 13

20、 A.V. C. a+ R F SECT ION Model 4QB4 Schematic Diagram CV -111 A -C Power Supply Unit Models 4QB and 4QB4 may be operated on 105-125/200-250 volts, 50-60 cycle a -c power supply, by installing a CV -111 power supply unit on the chassis, as follows: 1. Remove the battery cable plug from the power plug

21、 on chassis. 2. Set the line power switch (on side of CV -111) to the correct position for the a -c voltage that is to be used. 3. Place the CV -111 on top of the radio chassis as shown in dotted lines in the top view. Press the dial light clip on the projection at low -frequency end of dial assembl

22、y. Insert the 8 -prong socket (on cable from CV -111) into the power plug on chassis. 4. Fasten the power unit to the chassis. The front of the unit has two projections which fit into slots on the front of the Model CV -111 Power Unit chassis. Two projections on. the rear of the unit have holes for

23、fastening to the rear of the chassis with self -tapping screws. 5. Caution: Before connecting to the a -c supply, make certain that ail tubes are firmly seated in their sockets. Always dis- connect the a c supply before removing or replacing tubes. 6. Reverse the a -c power plug for minimum hum. Soc

24、ket Voltages, with CV -111 Power Supply Unit (Line Supply Voltage, 117, or 234 volts) Tube 1A7 -G 1N5 -G 1H5 -G 105-G Function let-Det. Ose. I. F. 2nd Det., A. F. Output Filament Voltage 1.3 1.3 1.3 1.28 Plate Voltage 95 85 95 40* 92 Screen Voltage 45 95 95 Plate Mils. 0.4 1.5 1.5 .03 9 Screen Mils.

25、 7 .35 1.75 Bias 6.1 Total B current, 15 mils. Total filament current, 146 mils. With 750,000 ohm voltmeter. PAGE 49-C 4QB, 4QB-4, CV III Replacement Parts Insist on genuine Factory -tested parts, which are readily identified and may be purchased from authorized dealen STOoCK DESCRIPTION STOCK DESCR

26、IPTION CHASSIS ASSEMBLIES 14278 Socket -Phonograph input . socket and plate (RC -440, Model 4QB) 31319 Socket -Tube socket (R 4, Model 4QB4) 31418 Spring -Spring for indicator drive and condenser drive cords 32832 Bracket -Drive bracket pulleys, tuning knob 33781 Switch -Range switch (Model 4QB Si,

27、S2) shaft complete 33782 Switch -Range switch (Model 4QB4 Si. S2). 32834 Bracket -Pulley and bracket 32263 Transformer -First i -f transformer (Model 4QB 32830 Capacitor -Trimmer capacitor -2 sections 2-20 Lll, L12, C9, C10) mmfd. each. (Model 4QB C23, C24) (Model 14261 Transformer -First i -f trans

28、former (Model 4QB4 4QB4 C25, C28) L11, L12, C9, C10) 31292 Capacitor -Trimmer capacitor -2 sections 3-30 mmfd. each (Model 4QB C25, C26) 32825 Transformer -Second i -f transformer (L13, L14, C13, C14, C15, R12) 33788 Capacitor -Trimmer capacitor -3 sections 2 of 5-60 mmfd. each and 1 section of 2-20

29、 mmfd. each. (Model 4QB4 C23, C24, C27) SPEAKER ASSEMBLIES (84568-2) 12723 Capacitor -56 mmfd. (Model 4QB4 C26) 33804 Cone -Cone complete with voice coil, center 30949 Capacitor -56 mmfd. (C9, C10, C13, C14 Model 4QB) (C10, C13, C14, Model 4QB4) suspension and dust screen -centered and as - sembled

30、in metal housing (L15) 12629 Capacitor -56 mmfd. (Model 4QB4 C10) 5118 Plug -3 -contact male plug for speaker 12720 Capacitor -100 mmfd. (C3, C17) 33791 Speaker -Complete 14262 Capacitor -109 mmfd. (Model 4QB4 C9) 33805 Transformer -Output transformer (T1) 32238 Capacitor -110 mmfd. (C15) 12694 Capa

31、citor -220 mmfd. (C1, C4) (C4 in Model MISCELLANEOUS ASSEMBLIES 31433 12635 4QB4 only) Capacitor -560 mmfd. (C4 in Model 4QB, C6 in Model 4QB4) Capacitor -1,000 mmfd. (C16) 32845 Bracket -Dial mounting bracket and lamp bracket assembly -less pointer and pointer slide rods 12951 Capacitor -2,200 mmfd

32、. (Model 4QB C6). 32837 Dial -Glass dial scale (Model 4QB) 31399 Capacitor -4,700 mmfd. (C7) 33844 Dial -Glass dial scale (Model 4QB4) 34340 Knob -Range switch knob -black 14393 Capacitor -.01 mfd. (C30) 34341 Knob -Range switch knob -ivory 34459 Capacitor -.0025 mid. (C18) 34342 Knob -Range switch

33、knob -maroon 33584 Capacitor -.005 mfd. (C8) 33085 Knob -Tuning knob -black 5148 Capacitor -.007 mfd. (C19) 32839 Knob -Tuning knob -brown 4937 Capacitor -.01 mfd. (C12) 33091 Knob -Tuning knob -ivory 4839 Capacitor -0.1 mfd. (C11) 33093 Knob -Tuning knob -maroon 33790 Capacitor -Comprising 2 sectio

34、ns of 10 mfd. 33943 Knob -Volume control knob -black each (C20, C22) 33944 Knob -Volume control knob -ivory Knob knob 32821 Coil -Antenna coil -A, B, C bands -(Model 33945 -Volume control -maroon Plug -2 -contact male plug for battery cable. 4Q8 Ll, L2, L3, L4) 32208 32706 Coil -Antenna coil -A, C b

35、and (Model 4QB4 Ll, L2, L3, L4) 12827 Plug -3 -contact male plug for battery cable (B leads) 32823 Coil -Antenna coil -X band (Model 4QB4 L5, 30568 Plug -4 -contact male plug for battery cable . L6) 32847 Pointer -Dial pointer, carriage and clip 32148 Coil -Oscillator coil -A band (Model 4QB 32846 R

36、od -Pointer slide rod L5, L6) (Model 4QB4 L9, L10) 30567 Socket -4 -contact female socket for battery 33784 Coil -Oscillator coil -B band (Model 4QB cable 33785 L7, L8) Coil -Oscillator coil -C band (Model 4QB L9, L10) 33969 Socket -8 -contact female socket for battery cable 33787 Coil -Oscillator c

37、oil -C band (Model 4QB4 14270 Spring -Retaining spring for knobs L16, L17) 33786 Coil -Oscillator coil -X band (Model 4QB4 L7, LB) CV -111 POWER SUPPLY UNIT 32817 Condenser -Variable tuning condenser (U2, C5, C21) 33813 Ballast -Ballast resistor tube -Type 86892-3 (R1, R2, R3) 33780 Control -Volume

38、control and switch (R6, S3, S4) 33968 Capacitor -Electrolytic -1 section of 20 mfd. and 1 section of 40 mfd. (C4, C5) 32634 Cord -Condenser drive cord 33810 Capacitor -Electrolytic, 3 sections 40 mfd. each 32635 Cord -Indicator drive cord (C1, C2, C3) 32713 Core -Core and stud for oscillator coil (M

39、odel 11891 Lamp -Pilot lamp 4QB) (B band) 33813 Resistor -Ballast resistor tube -Type 88892-3 32835 Drum -Drive cord drum (R1, R2, R3) 5119 Plug -3 -contact female for speaker cable 12453 Resistor -27 ohms, watt (R6) 30568 Plug -4 -contact male for power cable 33970 Resistor -43 ohms, flexible (R5)

40、33969 Plug -8 -contact female for power cable 14499 Resistor -1,500 ohms, watt (R4) 33789 Plug -B -prong male power input plug 33969 Socket -8 -contact female socket for power 14076 Resistor -820 ohms, watt (R10) supply cable 30148 Resistor -4,700 ohms, watt (R11) 31364 Socket -Pilot lamp socket 513

41、2 Resistor -47,000 ohms, 1/10 watt (R12) . 31319 Socket -Tube socket 13715 Resistor -68,000 ohms, * watt (R4) 32827 Switch -Voltage change switch (51) 14560 13730 Resistor -100,000 ohms, watt (R2) Resistor -1 meg., watt (Rl, R7) 33783 Transformr=Power transformer 105-120 and 12679 Resistor -2.2 meg., watt (R9) 200-240 volts, 50-60 cycle (T1) 13167 Resistor -3.9 meg., a. watt (R3) 33613 Tube -Ballast resistor tube -Type 86892-3 13601 Resistor -10 meg., watt (R5, R8) (121, R2, RS) 30340 Retainer -Drive bracket shaft retainer 32833 Shaft -Tuning knob shaft retainer and pulley. .