RCA-Victor-Co-Inc-X60 电路原理图.pdf

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1、PAGE 546-C MODEL X6o Chassis No. RC -474D Six -Tube, Push -Button, AC -DC, Superheterodyne Receiver Electrical and Mechanical Specifications FREQUENCY RANGES Standard Broadcast 540-1,720 kc Short Wave 5.6-20 me Intermediate Frequency 455 kc Number of Push Buttons Six TUBE COMPLEMENT (1) RCA-12SA7 Fi

2、rst Detector -Oscillator (2) RCA-12SK7 I -F Amplifier (3) RCA-12SQ7 Second Detector, A -F, and A.V.C. (4) RCA-35L6GT Power Output (5) RCA -6N5 Magic Eye (6) RCA-35Z5GT Rectifier Dial Lamp Mazda No. 51, 7.5 volts, 0.20 amp. POWER OUTPUT (125 Volts, 60 cycle Supply) Undistorted 0.8 watts Maximum 1.4 w

3、atts POWER SUPPLY RATINGS A -C Rating D -C Rating 105-125 volts, 50-60 cycles, 35 watts 105-125 volts, direct current, 35 watts Adjustments for Push -Button Tuning The push -buttons should be adjusted for six favorite stations after the receiver has been operating for a brief warm-up period. Each bu

4、tton may be set up to any standard broadcast station. The prefer- able arrangement is to adjust for stations in the order of frequency, from low to high. Proceed as follows: 1. Pull off the push -buttons and loosen the push-button rods with a small screwdriver. 2. Check to be sure the link connectio

5、n on back of chassis is in Radio position (connected between terminals 2 and 3). LOUDSPEAKER (RL 85-2) Type 5 -inch permanent magnet dynamic V.C. impedance at 400 cycles 4.5 ohms Height Width Depth Cabinet Dimensions (inches) 91 16 7 Chassis Base Dimensions (inches) 2-3/16 124 62 Overall Chassis Hei

6、ght 62 inches Shipping Weight 15 pounds Tuning Drive Ratio 10:1 3. Press in push-button No. 1 (left) as undue pressure, hold in, retune station with sary for best reception, and then carefully not tighten more than I turn after the screw to the mechanism may result. 4. Replace the push-button on its

7、 shaft. 5. Proceed in a similar manner for the buttons. 6. Insert the station marker tabs in the buttons. far as it will go without manual control if neces- tighten up the rod. Do begins to grip or damage remainder of the push - recesses above the push. Replacement Parts Insist on !enuine factory -t

8、ested parts, which are readily Identified and may be purchased from authorised dealers. S IOoCK DESCRIPTION STOCK N DESCRIPTION ASSEMBLIES 14284 Resistor -22,000 ohms, 1/10 watt (RC -474D) 13998 Resistor -22,000 ohms, watt 12454 Resistor -33,000 ohms, watt 33719 Belt-Push button adjusting belts 1241

9、2 Resistor -47,000 ohms, * watt 34024 Board-Antenna-Ground board 12284 Resistor -220,000 ohms, watt 34025 Board-Radio-Phono board 12285 Resistor -470,000 ohms, watt 33731 Button-Push button 30271 Resistor -4.7 megohm, watt 30766 Cap-Rubber shield for Magic Eye 13801 Resistor -10 megohm, * watt 33629

10、 Capacitor-Trimmer capacitor comprising of 2 33438 Screw-Magic Eye clip screw sections (C7, C8) 33725 Shaft-Tuning knob drive shaft and retainer. 12723 Capacitor -56 mmfd., moulded mica 31385 Socket-Dial lamp socket 12720 Capacitor -100 mmfd., moulded mica 13871 Socket-Magic Eye socket 12725 Capacit

11、or -150 mmfd., moulded mica 31319 Socket-Tube socket 12694 13895 Capacitor -220 mmfd., moulded mica Capacitor -5,600 mmfd., moulded mica 31418 Spring-Tuning condenser drive cord spring. 30303 Capacitor-.0035 mid., 700 volts 33720 Spring Pusharms returnh( spring Capacitor-.005 mfd., 1,200 volts 34336

12、 34336 Switch-Range ro switch Switch-Tone control switch (S3) 4937 Capacitor-.01 mid., 500 volts 33722 Transformer-First i -f transformer (C1, C2). 11315 Capacitor-.015 mfd., 400 volts 34026 Transformer-Second i -f transformer (C3, C4). 4870 32787 Capacitor-.025 mid., 400 volts Capacitor-.05 mid., 4

13、00 volts 33728 Washer-C washer for drive shaft 4839 34505 34212 Capacitor -0.1 mfd., 400 volts Capacitor -0.2 mid., 300 volts Capacitor-Comprising 2 sections of 50 mfd , SPEAKER ASSEMBLIES (RL 85-2) each, 150 volts 32907 Cap-Cone center dust cap 30716 Clip-Magic Eye clip 34554 Cone-Speaker cone and

14、voice coil 33732 Coil-Antenna coil 84803 Transformer-Output transformer 33733 Coil-Oscillator coil 33635 33631 Condenser-Tuning condenser and drum assembly Control-Volume control and power switch MISCELLANEOUS ASSEMBLIES 32634 33633 Cord-Tuning condenser drive cord Indicator-Station selector pointer

15、 31458 Cover -8 -protective marken covers for push button 11765 Lamp-Dial lamp-Mazda No. 51. 34270 Dial-Glass dial scale 33734 Plate-Dial plate complete less condenser and 33637 Escutcheon-Dial and button escutcheon button 30863 Knob-Tuning, tone, range or volume control. 30880 Resistor -150 ohms, i

16、 watt 33973 Marker -1 set push button markers 30152 Resistor -1,000 ohms, 1 watt 30900 Spring-Retaining spring for knob or button. 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 PA Short -Wave Sensitivity: Where insufficient sensitivity is noted o

17、n the short-wave band of Model X-60, addition of capacity coupling of 3 or 4 mmfd. between sig- nal and oscillator grids of converter tube will usually restore normal sensitivity to entire band. This coupling can be effected in several ways : (a) Unsolder one grid lead take several turns around othe

18、r lead to give desired capacity, resolder. (h) Twist several turns of insulated wire around both grid leads to give desired value of capacity coupling. (c) Install a S to 4 mmfd, capacitor between tube grids. A G PULLEY SET POINTER Y. LEFT OF THIS MARK. PLATE c44 Cz 435 KC. Tube and Trimmer Location

19、s yi1MC. I-i00KC isooR / INDICATOR 1 DRIVE CORD DIAL INDICATOR PULLEY 2#TURNS DRUM SHOWN WITH GANG AT MAXIMUM CAPACITY. M GIMP Dial -Indicator and Drive Mechanism 125A7 1OET.-O5C. 51 RANGE SELECTOR DRUM 1253(7 I.F BOTTOM VIEW OF TUBE SOCKETS 1ST 1.F TRANS. 455 KC. GREEN 95 C2 OSCILLOGRAPH CONNECTION

20、S VERTICALL-HI- TO THIS TERMINAL VERTICALO TO GROUND TERM. L-4- INDICATES CHASSIS 07v 52 Sve ITCH ON VOL CENT R E 547-C X-60 Alignment Procedure Cathode -Ray Alignment is the preferable method. Connections for the oscillograph are shown in the schematic drawing. Output Meter Alignment.-If this metho

21、d is used, connect the meter across the voice coil, and turn the receiver volume control to maximum. Test-Oscillator.-For all alignment operations, connect the low side of the test -oscillator to the receiver ground binding post, and keep the output as low as possible to avoid A.V.C. action. Calibra

22、tion Marks.-The tuning dial is fastened in the cabinet and can not be used for reference during alignment. Therefore calibra- tion marks corresponding to dial readings of 600 kc, 1,500 kc, 6.1 mc, and 20 mc have been stamped in the plate on the front of the chassis as shown in the accompanying drawi

23、ng. These marks are used for reference during alignment. Dial Indicator Adjustment.-With the gang condenser in full mesh, the indicator should point 1/16 inch to the left of the mark at the extreme left (low frequency) end of the dial scale. Steps Connect the high side of the test ose. to- Tu ne tes

24、t Turn radio dial to- Adjust the follow - peak for maximum peak output 1 Antenna terminal 455 kc A Band Quiet Point between 550-760 kc CS and C4 (2nd I -F trans.) 2 Cl and C2 (lit I -F trans.) S Antenna terminal in series with 300 ohms 20 mc C Band 20 me call- bration mark C5 (oac.) 4 Antenna termin

25、al in series with 200 mmf. 1,500 kc A Band 1,500 kc cali- bration mark) oec.)ant. C7 C6 ( 5 800 kc A Band 800 kc cali- bration mark CB (ose.) Rock gang 8 Repeat step 4 * Use minimum peak if two can be obtained. Check to determine that C5 has been adjusted properly by tuning receiver to approximately

26、 19.09 mc where a weaker signal should be received. Note: Oscillator tracks above signal on both bands. 2ND I F TRANS 455 INC. BLUE - EN 6 C3# RE .005 C4 01 12SQ7 2* DET.- AF-AVC. PIIONO BID 0 35L66T OUTPUT 0035 -i A3 dCONTEROL _. 5 RGw ST fGIIOV. 045v 01 11 OPEN LISO FOR PHONO VOL. CONTR OL 6NS IMF

27、G. TUNING EYE 220a 10 MEG 470,010 CATHODE CURRENTS III 125A1 _ 9.6 MA. 121 12557 _ 16.04. 131 12507 .15 W. 141 35L66T 35.0 MA. 51 6145 1. 4 MA. TOTAL 8 CURRENT 64.0 MA. 1GES SI pPD ,qlD wrtlll * STARRED TAGESTARE OPERATING VOLTAGES IN ITS WITH MI. SERI SCTUAMEASUREDVOLTAGESWILL E MLRDE ENDING ETE LOADING . eOT T FO 150- PERMANENT- MAGNET DYNAMIC SPEAKER .0 25011 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN