RCA-Victor-Co-Inc-9TX-23 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS Models 9TX-21, -22, and -23 Chassis No. RC-403 RC-403 RC-403A Five-Tube, Single-Band, AC-DC Superheterodyne Receivers Alisnment Procedure Output Meter Alignment.Connect the meter across the voice coil, and turn the receiver volume control to maximum. tST

2、OET. i osc. _/ ITJOKCVlV I_ (Z5L& 0SC.CO1L O .I*/ C4- Tcst-Oscillator.Connect the low side of the test-oscillator to the receiver chassis, through a .01 mfd. capacitor, and keep the output as low as possible. The antenna should be rolled up and kept at least one foot from chassis during alignment. s

3、ide of test- oscillator to -470,000 114 0 ii 3 TUBE LOCATIONS SPEAKER FIELD fiEO-BLACK TP. 20 460 DIALI.AMP 5L6 6SK7 6A8 6S07 YELLOwJWMiTE X. / / / / 154.0. POWER CORD 25x. SWITCH ON vOL. CONTROL COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS 收音机爱 好者资料库 RadioFans.CN FA, 239-C Models 9TX-1, -2, -3,

4、-4, -5, 9TX-21, -22, and -23 Chassis No. RC -401 RC -403 RC -403 RC -403A Five -Tube, Single -Band, AC -DC Superheterodyne Reczivers Model 9TX-1, Molded cabinet, walnut finish, mottled tan dial and knob. Model 9TX-2, Molded cabinet, ivory finish, ivory dial and knob. Model 9TX-3, Two-tone wood cabin

5、et, piano finish, mottled tan dial and knob. Model 9TX-4, Molded Arizona cream onyx cabinet, maroon dial and knob. Model 9TX-5, Molded green onyx cabinet, ivory dial and knob. Model DT X-21. Molded Cabinet, Walnut Finish, Mottled Tan Knobs Model 9TX-22, loldcd Cabinet, Ivory Finish, Ivory Knobs Elec

6、trical and Mechanical Specifications FREQUENCY RANGE 530-1,720 kc TUBE COMPLEMENT (1) RCA -6A8 1st-Detector-Oscillator (2) RCA-6SK7 I -F Amplifier (3) RCA-6SQ7 2nd-Det., 1st A -F, and A.V.C. (4) RCA -25L6 Power Output (5) RCA -25Z6 Half -Wave Rectifier Dial Lamp (1) Mazda 47, 6.3 volts, .15 amp. POW

7、ER SUPPLY RATINGS A -C Rating 105-125 volts, 50-60 cycles, 50 watts D -C Rating 105-125 volts, direct current, 50 watts 400 40,1. ANT. COIL 15.187.510 1i 1sT DET., OSC. 6A8 BOTTOM VIEW OF TUBE SOCKETS 13V. 3 O5C. COIL C5- 3 -to 1sT I.F. TRANS. 455KC PEAKE/ . F. AMP. SK7 90V k. 1_52 1 = GREEN BLACK M

8、odel 9TX-23, Wood Cabinet. Mottled Tan Knobs, Ther- 1 obteter-Type Tuning Indicator INTERMEDIATE FREQUENCY. 455 kc POWER OUTPUT (125 volt, 60 cycle supply) Undistorted 1.5 watts 2.0 watts Maximum LOUDSPEAKER Type 4 -inch Electrodynamic Height Width Depth 9TX-1, -2 5 . inches 81 inches . 43 inches Ca

9、binet Dimensions 9TX-3 . 52 inches 8j inches . 4q inches 9TX-4, -5 51 inches 8, inches . 41 inches Weight 7 pounds (shipping) 2MDET,A.F.,A.V.C. 2.1.F TRANS. 955 K C RED- 30n 30n BLACK 111 VC - AC-D FD W Q m 6507 1 DPI Ft Tal 00 250,000 II .01 RED -BLACK TR 120 .01 220,000 10 MEG. RECT. 2576 .05 DIAL

10、 LAMP p 2526 25L6 6SK7 6A8 6507 YELLOW WHITE 154,. 25n SWITCH ON VOL. CONTROL OUT PUT 25 L6 5V BSV GREEN 1501,01 410,000 T-GB703-0 SPEAKER 120V FIELD RED BLUE 20-T 450 12 MFD I y. IMFD. RED V. C. B.C. TUBE LOCATIONS POWER CORD RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S.

11、A. 收音机爱 好者资料库 RadioFans.CN PAGE 240-C 9TX-I TO -5) 9TX 21, -22, -23 Precautionary Lead Dress 1. Dress 1st I -F plate and grid leads against chassis and away from each other. Dress plate lead from 6SK7 close to chassis. 2. Dress electrolytic capacitor against rear apron. 3. Keep leads away from adjus

12、ting screws to allow easy access. 4. Dress output plate lead along front apron and away from 6A8. Dress parts at ends of chassis to clear cabinet hosse,. Alignment Output Meter Alignment.-Connect the meter across the voice coil, and turn the receiver volume control to maximum. C4-1 c3 455rcc 455 KC

13、CI 455 K. Trimmer Locations C2 455 Kc Power -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 a -c, reversal of the plug may reduce hum. Resistor in Power Cord.-The . power cord contains a r

14、esistor which becomes warm during operation. Antenna.-The set is equipped with length of antenna wire. Do not connect the antenna to ground. If an outdoor antenna is used, it should not be longer than 100 feet, including lead-in. If it is longer, connect a 100 to 200 mmf. capacitor in series with th

15、e l e:ul in. Procedure Test-Oscillator.-Connect the low side of the test -oscillator to the receiver chassis, through a .01 mfd. capacitor, and keep the output as low as possible. The antenna should be rolled up and kept at least one foot from chassis during alignment. Steps Connect the high side of

16、 test- oscillator to- Tune test-osc. to- Turn radio dial to- Adjust the follow - ing for max. peak output - 1 6A8 1st-Det. grid cap, in series with .01 mfd. 455 kc Quiet point at 1,600 kc end of dial Cl, C2, C3, C4 (1st and 2nd I -F transformers) 2 Antenna term. of ant. trans in series with 100 mmfd

17、. 1,720 kc Full clockwise (out of mesh) C5 (oscillator) 3 1,500 kc Resonance on 1,500 kc signal. C6 (antenna) Replacement Parts Insist on genuine factory -tested parts, which are readily identified and may be purchased from authorized dealers. STOCK No. DESCRIPTION STOCK No. DESCRIPTION 32572 32573

18、13057 12488 12952 30433 4858 4870 4888 4839 32578 32579 32577 32586 32587 32568 32589 32570 32571 31480 12409 14439 32535 12412 12264 12285 12679 13601 31199 32537 32575 32574 32581 32534 32578 32580 32667 32803 33006 32572 32573 13057 12488 12952 30433 4858 MODELS 9TX- 1 To 5 Coil-Antenna coil Coil

19、-Oscillator coil Condenser -80 nunfd. Condenser -250 mmfd. Condenser -300 mmfd. Condenser -400 mmfd Condenser-.01 mf d. Condenser-.025 mfd. Condenser-.05 mfd Condenser -0.1 mfd. Condenser-Electrolytic, one section 20 mfd., one section 12 mfd. Condenser-Variable tuning condenser Cord-Resistance power

20、 cord Dial-Ivory dial for 9TX2 and 9TX5 Dial-Maroon dial for 9TX4 Dial-Tan dial for 9TX1 and 9TX3 Knob-Ivory volume control knob for 9TX2 and 9TX5 Knob-Maroon volume control knob for 9TX 4 Knob-Tan volume control knob for 9TX1 and 9TX3 Lamp-Dial lamp-Mazda 47 Lead-Antenna lead Resistor -100 ohms, wa

21、tt Resistor -120 ohms, wire wound Resistor -47,000 ohms, I watt Resistor -220,000 ohms, watt Resistor -470,000 ohms, I watt Resistor -2.2 meg., watt Resistor -10 meg., watt Shield-Dial lamp shield - Models 9TX1, 9TX2, 9TX4, and 9TX5 Socket-Tube socket Speaker-Complete with transformer Transformer-Fi

22、rst i.f. transformer Transformer-Output transformer Transformer-Second i.f. transformer Volume Control and Power Switch-Models 9TX1, 9TX2, and 9TX3 Volume Control and Power Switcl -Models 9TX4 and 9TX5 Spring-Volume knob spring Spring-Tuning knob spring Foot -Rubber foot for 9TX-3 only MODELS 9TX-21

23、, -22, -23 Coil-Antenna coil Coil-Oscillator coil Condenser -60 mmfd. Condenser -250 mmfd. Condenser -300 mmfd. Condenser -400 mmfd. Condenser-.01 mfd. 487U 4886 4839 32576 32944 32634 32577 32942 33289 33297 32946 33008 33295 32447 32571 31480 12409 32943 33292 33294 14439 32535 12412 12264 12285 1

24、2679 13601 32945 33293 33290 32537 32575 32947 31615 33296 32667 32574 32581 32534 32578 33291 31646 Condenser-.025 mfd. Condenser-.05 mfd. Condenser -0.1 mfd. Condenser-Electrolytic, one section 20 mfd , one section 12 mfd Condenser -2 -gang variable tuning Cord-Drive cord Cord-Resistance power cor

25、d Dial-Glass dial scale-Models 9TX21, 9TX22 Dial-Glass dial scale-Model 9TX23 Drive-Dial drive mechanism comprising drive drum, cord, shaft, dial color plate, back plate and pulleys assembled-Model 9TX23 Drum-Variable condenser drive drum and indi- cator disc-Models 9TX21 and 9TX22 Feet-Rubber feet

26、for 9TX23 Indicator-Dial pointer-Model 9TX23 Knob-Ivory knob (tuning or volume) Model 9TX22 Knob-Tan knob (tuning or volume) Models 9TX21 and 9TX23 Lamp-Dial lamp-Mazda 47 Lead -Antenna lead Nut-Speed nut to fasten dial-Models 9TX21 and 9TX22 Plate-Dial color plate-Model 9TX23 Pulley-Drive cord pull

27、ey-Model 9TX23 Resistor -100 ohms. watt Resistor -120 ohms, wire wound Resistor -47,000 ohms, watt Resistor -220,000 ohms, watt Resistor -470,000 ohms, watt Resistor -2.2 meg., watt Resistor -10 meg., watt Shaft-Tuning knob shaft-Models 9TX21 and 9TX22 Shaft-Tuning knob shaft and bushing-Model 9TX23

28、 Socket-Dial lamp socket Socket-Tube socket Speaker-Complete with transformer Spring-Drive 9TX21 and Spring-D rive 9TX23 Spring-Drive 9TX23 cord tension spring-Models 9TX22 cord tension spring-Model drum retaining spring-Model Spring- drive drum retaining spring Transformer-First i. f., transformer Transformer-Output transformer Transformer-Second i. f. transformer Volume Control and power switch-Models 9TX21 and 9TX22 Volume Control and switch-Model 9TX23. Spring-Dial knob spring. 收音机爱 好者资料库 RadioFans.CN