RCA-Victor-Co-Inc-9M1 电路原理图.pdf

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1、PAGE 217-C MODELS 9M1 and M50 Chassis No. RC 357 RC 3571 Five -Tube, Push -Button, Superheterodyne Automobile Receiver MODEL 9M1 Electrical Specifications MODEL M 50 TUBES AND FUNCTIONS 6A8 6K7 6Q7 First Detector-Oscillator IF Amplifier Second Det., A -F Amp. and A.V.C. 9M1 M50 6F6. 6K6GT. Output 6X

2、5 OZ4G. Rectifier Dial Lamp 6.8 volts, 0.2 amp., Mazda 51 FREQUENCY RANGE 550-1,550 kc POWER OUTPUT Type Undistorted Maximum Pentode 2.1 watts 4.1 watts LOUDSPEAKER Type Size V.C. Impedance Field Coil Resistance Electrodynamic 5 inches 3.2 ohms at 400 cycles 5 ohms POWER SUPPLY App. Field Coil Volta

3、ge Drop 6 volts A 6.3 volt Auto Storage Battery B Non -Synchronous Vibrator Current Drain j9M1 6.75 amps. (M50 . 6.0 amps. D AL DRUM PULLEY MANUAL TUNING SHAFT IDLER SCISSORS GEAR. SECTOR GEAR DRIVE COR D DRIVE CORD DRUM PH -470e1 Tuning Mechanism Antenna Circuit The antenna circuit is designed to w

4、ork with a low capacity antenna having a total capacity including the shielded lead-in not to exceed 150 mmf. If larger antennas, such as screened top or a double under the running -board having a total ca- pacity of 200 to 550 mmf. is to be used, it will be necessary to reduce the value of the ante

5、nna coupling capacitor C-2 from .01 to approximately 200 mmf. (.0002). For even larger an- tennas such as insulated steel tops, a correspondingly smaller value pf C-2 (approximately 125 to 150 mmf.) should be used keeping in mind to use the largest value possible with which the antenna circuit can b

6、e aligned. After installation, and with antenna connected, tune in a weak station near 1,400 kc and adjust compensator trimmer (C-3) for maximum signal output. This trimmer is accessible by prying off the nameplate between the control knobs. Antenne Filter A filter is included in the antenna circuit

7、. Being completely shielded, it prevents radiating ignition interference within the set, It also reduces the possibility of picking up vibrator interference. The filter unit is mounted inside a steel shell which in turn is welded to the chassis. The shielded antenna lead-in makes contact with the fi

8、lter unit within the steel shell and is held in place by a bayonet type connector. Push Button Tuning Mechanism Care should be used when locking screws are tightened not to use excessive force as the threads may become damaged or stripped. Adjustments The mechanism should be adjusted so that when us

9、ing either manual or push-button tuning, it operates positively and without backlash or bind. The following hints will be found helpful in adjusting the mechanism properly. 1. With the gang condenser in full mesh, the sector gear should have the two end teeth fully meshed in the scissor gear. 2. The

10、 position of the sector gear on the rocker plate shaft should be adjusted so that there is clearance between the rocker plates and the frame of the push-button mechanism at both extremities of gang rotation. Thus correct adjustment prevents the rotation of the gang being limited by the rocker plates

11、 touching the frame. 3. The drive cord should have 81/2 turns around the tun- ing shaft as shown in the illustration. Three degrees of adjustment of the tension on the drive cord may be obtained by use of the three positions for connecting the drive -cord -tension spring to the drive -cord drum on t

12、he condenser shaft as shown. 4. The push -arms, rocker plate shaft, and pulleys should be lubricated with light grease (sparingly). Care should be taken to keep the lubricant off the drive cord. 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 PAGE

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16、001.(C YELLOW DUMMY TERM. Location of Parts and Alignment Adjustments on Top of Chassis MODEL 9 M 1 MODEL M-50 IS IDENTICAL WITH THESE EXCEPTIONS: 6X5 IS CHANGED TO OZLG 6F6 IS CHANGED TO 6K6GT ELECTROLYTIC CAPACITOR CONNECTIONS AS ILLUSTRATED AT RIGHT TO C11 GREEN DOT ON SIDE 6A8 151 DET. the oscil

17、lator coil is pre - adjusted for inductance in the factory. Since the oscillator coil is unshielded, the case has some effect on its inductance. Therefore alignment must be done either with the chassis in the case or with a steel plate (covering the bottom of chassis), substituting for the case. EVa

18、T RU NSn RPPROX. DIAL DRUM PULLEY 8. TUENS RPP20X. Mew w w ,FILTER UNIT MANUAL TUNING 5HRFT Millahlill CANT LEAD-IN I IDLER TO ANT. COIL L -Z C2. DIAL DRUM PULLEY i . . i III / . N.I ., e. DRIVE / SHIELD O CORD orzUM Antenna Filter Drive Cord Hookup p PAGE 221-C 9M 1, REPLACEMENT PARTS Insist on gen

19、uine factory -tested parts, which are readily identified and may be purchased from authorized dealers. M50 STOCK No. DESCRIPTION STOCK No.K DESCRIPTION 9M1 RECEIVER ASSEMBLIES 9M1 MISCELLANEOUS ASSEMBLIES 13002 Capacitor -12 mmfd. (Cl) 4289 Body -Fuse holder body for ammeter lead. 31728 Capacitor -3

20、7 mmfd. (C12) 31656 Button -Push button 12405 Capacitor -47 mmfd. (C16) 5025 Capacitor -Generator capacitor 14262 Capacitor -110 mmfd. (C14, C15) 31653 Case -Complete receiver case only -less name 13894 . Capacitor -390 mmfd. (C21) plate, and dial scale 3067:, Capacitor -470 mmfd. (C18) 4291 Clip -S

21、pring clip for ammeter lead 31726 Capacitor -490 mmfd., temp. coeff. (C10) . 31456 Covers -8 -protective celluloid covers for call 4838 Capacitor -.005 mfd. (C19, C22) letter markers 30626 Capacitor -.0075 mfd. (C25) 31654 Dial -Dial scale and holder 14393 Capacitor -.01 mfd. (C2, C20) 4286 Ferrule

22、-Bushing and ferrule for fuse holder. 4870 Capacitor -.025 mfd. (C9) 5023 Fuse -15 amp 30882 Capacitor -.05 mfd. (C13) 4290 Insulator -Insulating sleeve for fuse holder. 4839 Capacitor -0.1 mfd. (C29) 31658 Knob -Station selector or volume control knob 12741 Capacitor -0.5 mfd. (C27) 7766 Lead -Amme

23、ter lead complete with clip and fuse 31598 Capacitor -Comprising two 8 mfd., and one 10 holder mfd. sections (C23, C24, C31) 31589 Markers -One set call letter markers for push 31596 Clip -Spring clip to hold oscillator coil buttons 31766 Coil -Antenna coil less shield (L2) 31662 Mounting -Complete

24、set of mounting brackets, 31977 Coil -Antenna filter (L1) strap, washers, screws, bolts, and nuts 31594 Coil -Oscillator coil (L6, L7) 31660 Plate -Name plate 11765 Lamp -Dial lamp 31646 Spring -Retaining spring for knobs 30641 Lead -Ammeter lead (chassis end), complete 4284 Spring -Spring for fuse

25、holder with male section of fuse holder 5024 Suppressor -Distributor suppressor 30540 Resistor -100 ohms, watt (R15, R16) 4285 Washer -Insulating washer for fuse holder. 14561 Resistor -220 ohms, watt (R3) 30499 Resistor -470 ohms, 7 watt (R12) Additional Replacement Part: 6134 Resistor -1,200 ohms

26、1 watt (R13) 12695 Resistor -15,000 ohms, watt (R14) Stock No. 13669 Resistor -22,000 ohms, 2 watt (R2) 32510 Screw -Cam locking screw fur tuning 12266 Resistor -39,000 ohms, watt (R7 V unit assembly 12286 Resistor -56,000 ohms, * watt (R4) 14983 Resistor -330,000 ohms, i watt (R10) 34053 Spring -Pu

27、sh-button retaining spring 12285 Resistor -470,000 ohms, watt (Rll) 12879 Resistor -2.2 meg., watt (R6) 13601 Resistor -10 meg., watt (R9) 13471 Ring -Retaining ring for coil, Stock No. 31766 31639 Socket -Dial lamp socket 31319 Socket -Tube socket 13686 Socket -Vibrator socket 14376 Transformer -Fi

28、rst i -f transformer (L8, L9, C14, C15) 30672 Transformer -Second i -f transformer (L10, L11, C16, C18) REPLACEMENT PARTS MODEL Mn0 REFER TO MODEL NMI PARTS LIST ABOVE 31597 Transformer -Vibrator power transformer (T1, L15, C26) 13688 Vibrator -Plug-in vibrator complete (L16) Add stock no. 31637 Vol

29、ume control and power switch (R8, Si) gV11 TUNING UNIT ASSEMBLIES 12629 Capacitor - 56 mmfd. (C15) 33584 Capacitor - 0.005 mrd. (C19, C22) 31604 Condenser -2 -gang variable condenser (C3, C4, 4937 Capacitor - 0.01 mfd. (C2, C20) C11) 32240 Capacitor - Electrolytic, 2sections 10 mfd. 31614 31725 Cord

30、 -Variable condenser drive cord Drum -Indicator drum assembly and I. section 20 mfd. (C23, C24, C31) 31610 Drum -Variable condenser drive cord drum 14281 Transformer - First I -F Transformer (L8, L9, 31612 Gear -Variable condenser drive gear sector- C14, C15) fastens on cam shaft 33665 Mechanism - C

31、omprising 5 push arms, cams, 31645 Mechanism -Comprising 5 -push button levers and cams, cam plate, and variable condenser cam plate and mounting bracket assembled. 31606 mounting bracket, assembled Aulley-Indicator drum pulley 33668 Case - Receiver case only. 33670 Dial - Dial scale and holder. 316

32、07 Pulley -Pulley for indicator drum bracket 33671 !Mob - Volume contr0l or tuning knob. 4389 Screw -No. 6-32 x 3/16 -in. set screw for pulley, 53669 Mounting - Complete set mounting brackets, 31613 Stock No. 31606 Screw -No. 8-32 x kin. set screw for gear, Stock No. 31612 strap washers, bolts and n

33、uts. screws, 31611 Screw -No. 8-32 x -in. set screw for drum, Stock NOt 8 4838, 14393, 31598, 14376, 31845, 31656 Stock No. 31610 31653, 31654, 31658 and 31662 not used with Model 31609 Shaft -Station selector knob shaft 31615 Spring -Variable condenser drive cord tension spring M-50. 30585 Spring -

34、Push button arm tension spring 2917 Washer -C washer to hold knob shaft 31808 Washer -C washer to hold pulley, Stock No. 31607 SPEAKER ASSEMBLIES (Speaker 84391-1) 35913 Cone -Speaker cone and voice coil (L12) 30781 Speaker -Complete 30783 Transformer -Output transformer (T2) Push -Arm Inserts: SPEA

35、KER ASSEMBLIES Special push -arm inserts are now available to take care of stripped threads on the push button mechanism in these models. (Speaker 84391-3) Stock No. 36160 Insert is for use in Models 911, 9M2, 96X-11, -12, -13, -14. 31771 Cone -Speaker cone and voice coil (L12) Stock No. 36161 Insert is for use in Models 31770 Speaker -Complete M-50, M-60, and M-70. 31772 Transformer -Output transformer (T2)