RCA-Victor-Co-Inc-RAE-68 电路原理图.pdf

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1、PAGE 195-A INPUT Pt Model RAE -68 Nine -Tube Superheterodyne A -C, Automatic Radio -Phonograph WIRING DIAGRAM OF AUTOMATIC MECHANISM ASSEMBLY 5 RR SECONDARY STOP SWITCH PICK Up MOTOR RED TO MUNI 390A RED TO IOWAN 1344 TEUAN IR ARCM 135a SCHEMATIC WIRING DIAGRAM OF MOTOR CIRCUIT -Wiring Diagram -of A

2、utomatic Mechanism Model RA E -68 SPECIFICATIONS Voltage Rating 105/125 Volts, Frequency Rating 50 and 60 Cycles Maximum Power Consumption .60 Cycles -150 Watts Maximum Power Consumption .50 Cycles -155 Watts DESCRIPTION The Model RAE -68 is a combination instrument containing the RCA Radiola 82rece

3、iver with remote control and the RCA Victor automatic electric phonograph. The instrument will play ten 10 -inch records automatically, or it can be set by means ofa convenient lever to play either 10 -inch or 12 -inch records singly without the automatic feature. One of the features of the instrume

4、nt is the safety clutcharrangement which prevents the mechanism from jamming during the cycle shouldany of the moving parts happen to bind. A spring on the tone arm also prevents the possibility of damage being causedto the mechanism by moving the arm while the mechanism is in cycle. Another feature

5、 is the capacitor type motor which furnishesmore than ample power for opera- tion of the instrument with a minimumpower consumption. The motor is dependent upon proper power supply frequency to maintain its speed and, therefore, does not e a spftd regulator or governor. A 1.25 mfd. condenser connect

6、ed in the motor field circuit producesrir sufficient phase dis- placement to cause the motor to be self starting. The standard instrumentsare desired for. opera- tion on 105 to 125 volts, 60 cycles. Maximumpower consumption is 150 watts. Special instruments are available for o .ration on 105 to 125

7、volts 50 des. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. S. A. 收音机爱 好者资料库 RadioFans.CN COMPARTMENT LAMP,. INPUT PLUG BRAIDED ENIeeS PHONOGRAPH VOLUME CONTROL I Avg ;In -:411411111115114114 ROTARY SWITCH OLNL.Sw NISTANT TITION CONTROL LL / VOLUME CONTROL IAMBI MUNN /CORTROL S. P.U

8、. - REPRODUCER ASSEMBLY COIL BRAIDED SHIELDS I0. UYitta VT -217Ov.224 23 RAC uY tg ,1.!g ,.224 G CC CO RECEIVER ASSEMBLYr-.,., BREEN -:, ficla47,g1/ ORg./ Roo BRAIDED SHIELD Ul23UX.241 GRUA- VAC. LLOw Wiring Diagram of Model RAE -68 TO PICKUP LEIOO TOATI SLACIC-1.MECHANISM 6111E11.p. RESISTOR/60 A.

9、MOTOR CONTACTOR ASSEMBLY REMOTE CONTROL CAERE TERMINAL STRIP REMOTE CONTROL ROX LECT OR AND 35SETZattiriV COMPARTMENT LAMP SWITCH 004 LID SUPPORT TO ROTARY SWITCH AAAAAA ORLIER, CONDENSER SRO REACTOR oNiT UNDER SIDE OP REMOTE CONTROL CABLE TERMINAL STRIP %, INTERNAL CONNECTIONS OP REMOTE CONTROL BOX

10、), rn 0) co TO THREE WAT PLUG 收音机爱 好者资料库 RadioFans.CN PAGE1. 97 -A RAE 68 REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers MiscellaneousParts Stock No. DESCRIPTION Stock No. DESCRIPTION 2923 2921 2923 Knob -Tuning kno

11、b and tone control knob (Pkg. of 5) Knob-Local-Distanceswitchknob (Pkg. of 5) Knob-Pickup volume control and control switch knob (Pkg. of 5) 7083 7196 7198 Transformer-Pickup input transfor- mer Lamp-Compartment lamp (Pkg. of 5) Switch-Control switch 7078Volume control -60 ohms volume con- trol 2363

12、Resistor -6000 ohms resistor (Used oil control switch) (Pkg. of 5) 2775Stop- -Door stop with mounting screws (Pkg. of 5) 7199Support-Lid support R. H. with mounting screws 2776Catch -Door catch and strike with nail (Pkg. of 2) 7200Support-Lid supportL.H. with mounting screws 2922Hinge -Lid hinge wit

13、h mount- 7201Cable-Inside cable ing screws (Pkg. of 2) 7202Bolt assembly-For mounting 2926Pull- -Door pull complete (Pkg. of 3) mechanism in cabinet (Set of 4) 2927Hinge-Door hinge with mount- ing screws (Pkg. of 2) 8584Escutcheon - Tuningdial escutcheon 7197Shade - Compartment lamp 8585Grille Shade

14、 (Pkg. of 5) 8587Baffle Board-Complete with grille cloth and pad Refer to Radiola 82 for receiverand amplifier replacement parts. AUTOMATIC RECORD CHANGER PARTS. Stock No. DESCRIPTION Stock No. DESCRIPTION Stock No. DESCRIPTION 8644Capacitor-Motor capacitor - 1.25 mfd. 2912Roller -Sliderollercomplet

15、e with screw stud (Pkg. of 5). 2904Lever-Frontelevatorshaft actuating lever 8645Base-Motor base 7189Lever - Elevator cam lever2929Lever - Rear elevator shaft 2901Springs-Motorbasesprings(Pkg. of 5)lever (Not illust.) complete with 8 screws (Pkg. of 2) 2913Spring-Four finger lever spring (Pkg. of 10)

16、8646 (Pkg. of 2) . 2902Screw and nut-Motor thrust (Pkg of 10) 2914SpringFlat-springcomplete with two screws(Pkg.of 2905Screw-Gear and bracket mount- ing screw (Pkg. of 10) 2903Screw-Motor mounting screw10)2906Spring-Check lever spring (Pkg. (Pkg. of 10)7190Lever-Locating leverof 10) 7194Rotor and sh

17、aft (60 cycles). .2915Spring-Locating lever spring7186Gear and bracket 7204Rotor and shaft (50 cycles)(Pkg. of 10)7187Clutch-Complete with set screw 7195Spindle and gear-Turntable spindle complete with gear 2916Plate-Latchplatecomplete with 2 screws (Pkg. of 5). . 2907Screw-Clutchset screw (Pkg. (60

18、 cycles)7191Cable lever2908Spring - Clutch pawl spring 7205Spindle and gear-Turntable2917Washer-Spring washer (Pkg.(Pkg. of 10) spindle complete with gearof 10)8647Lever-Four finger lever (50 cycles)2918Spring-Index lever (Pkg. of 10)2909Spring-Four finger lever spring 2921Tip - Turntable spindle ti

19、p,2919Screwand nut-Stop screw(Pkg. of 10) 7206 spring and pin (Pkg. of 5). Bearing - Turntable spindle10) complete with nut (Pkg. of2614 2910 Switch-Motor switch complete Spring - Four finger spring bearing7192Cam and gear(Pkg. of 10) 8648Motor complete (60 cycles) .7193Pawl-Clutch pawl7188Bracket -

20、 Slide bracket com- 8649Motor complete (50 cycles)9314Plate-Bottom plateplete with screws 2752 2891 2892 Support-Screen support Screw-Trip leversetscrew (Pkg. of 10) Lever-Trip lever, complete with set screws 2920 2896 2897 Washer-Friction washer (Pkg. of 10) Spring - Pickup arm cable spring (Pkg. o

21、f 10) Screw and nut-For pickup arm cable (Pkg. of 5) 2911 8643 2825 Screw-For slide bracket (Pkg. of 10) Arm-Tone arm and base com- plete with screws and nuts. Block-Pickup connector block and wire (Not illustrated). 2893Spring-Trip lever spring (Pkg. of 10) 2898Screw and nut-For elevator shaft (Pkg

22、. of 10) 2888Lever - Manually operated lever 2894Pulley-Completewith stud screw (Pkg. of 5) 2899Shaft-Elevator shaft complete with screw and nut 7085Pickup-Magnetic pickup com- plete, less tone arm 2895 2885 2886 8642 Cable-Pickup arm operating cable (Pkg. of 5) Screw - Elevator pad screw (Pkg. of 1

23、0) Pad-Rear elevator pad (Pkg. of 5) Turntable 2900 2928 8641 2883 2:14 Screw-Magazine lever screw (Pkg. of 10) Lever-Magazine lever Magazine - Record magazine complete with washer Screwand nut-For record transfer lever (Pkg. of 10) Lever-Record transferlever 2889 9313 2890 Switch-Not used Screw-Bot

24、tom plate mounting screw (Pkg. of 10) Motor board Pad-Front elevator pad (Pkg. of 5) 2887Washer - Turntable leather washer (Pkg. of 10) complete with screw and nut. 收音机爱 好者资料库 RadioFans.CN PAGE 250-A AUTOMATIC RECORD CHANGER USED WITH MODELS - RAE 26 RAE59 RAE68 RAE 79 continuous playing ofone side

25、of ten 10 -inch records, operation at either 33% or 78 R.P.M. for playing standardor Program Transcription records manually or automatically, a special clutch to prevent jamming incase of failure of a part and a heavy duty motor operating at synchronous speed thereby eliminatingany need for regulati

26、ng devices. The automatic mechanism used in the RAE -6b is similar to that used in RAE -26, RAE -59 and RAE -79. However it is 76 r.p.m. only. The automatic mechanism used in the RAE -84 is similarto that used in other RCA Victor auto- matic combinations such as Models RAE -26, 59,or 79. Several min

27、or changes have been made in these machines as follows: 1. Concentric Groove Trip. A trip so that either Brunswickor Columbia records may be mixed with Victor records in the automatic magazine has been provided. 2. An automatic starting switch, operated by pulling thetone arm to the right, has been

28、added for manual playing. 3. A trip to stop the motor when playing either 10- or 12 -inch records manually has been added. 4. An interlock has been provided so that the manual lever cannot be moved while the mech- anism is in cycle. This prevents jamming due to improper operation. 5. A ball race spe

29、ed reducer is used for changing the turntable speed from 78 to 33Y3 R. P. M. This is simple in operation and gives a greater freedom from wows than the gear type reducers. 6. Needle Lamp. A small electric lamp is provided so that proper illumination of the record and pickup is obtained. This assists

30、 in properly inserting the needle into the pickup as well as lower- ing the needle onto the record. Service in conjunction with this mechanism will therefore be practically thesame as that of the older type automatic record changing mechanims. However, dueto the new trips several additional adjustme

31、nts are now included. (1) ADJUSTMENT OF AUTOMATIC SWITCH The automatic switch should be adjusted so that the contacts are at least 0.025 inches apart when the switch mechanism has been tripped. This is important, as otherwise arcing at the switch may occur. (2) ADJUSTMENT OF 10 -INCH AUTOMATIC SPIRA

32、L GROOVE TRIP LEVER The 10 -inch automatic spiral groove trip lever should be adjusted bymeans of the screw assembled thereon. Proper adjustment is obtained when it forces the four finger lever out of contact with the clutch pawl, which trips the mechanism, when the needle is betweena 1% inch and a

33、Ui inch radius from the center of the turntable spindle. (3) ADJUSTMENT OF 12 -INCH AUTOMATIC SPIRAL GROOVE SWITCH The 12 -inch automatic spiral groove switch should be adjusted bymeans of the adjusting screw assembled in the trip lever so that it forces the switch lever out of contact with the swit

34、ch trip lever, causing the latter to open the switch when the needle is between a 1 inch and a Ui inch radius from the center of the turntable spindle. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. PAGE 251-A AUTOMATIC RECORD CHANGER Remember That the Control Lever Can

35、Be Changed from Automatic to Manual Only When the Mechanism is Not Changing Records Place a Home Recording needle into the pickup as far as it will go. Then lower the pickup on the side of the turntable. The needle shouldextend from to I.6 below the top of the metal edge of the turntable. If it does

36、 not, an adjustment can be made by means of a screw located under the tone arm. Lifting the arm provides accessibility to the screw. See Figure 2. If when starting the automatic mechanism, the needle lowers onto the smooth outer rim of the record but fails to swing into the first groove, it may be c

37、aused by the following: (a) Cabinet not level. (b) Weak tension in spring. A flat spring presses against the tone arm lever on the under side of the motor board. See Figure 17 Bending it so as to increase its tension against the tone arm lever will cause the needle to swing into the first record gro

38、ove. Be careful not to bend it too much as excessive tension will cause the needle to skip several grooves. After the instrument has :ompleted one record changing operation, a ten inch record should extend about three-quarters way over each elevator pad. If this condition does not exist, an adjustme

39、nt can be made by means of the screwsthat hold the pads in position. A pair of pliers heavily padded with cloth or other soft material should be used to hold the elevator shafts while loosening and tightening the screws. The distance from the closest part of either pad to the edge of the spindle is

40、approximately 434. Figure 3 shows the method of making this adjustment. Figure 2-Adjusting height of lone armFigure 3-Adjusting elevator pad umarnife mnoommel.=lw 11111111 PAL Figure -Adjustment of damper pads (1) SPEED VARIATIONS (WOW) A variation in the speed of the turntable evidenced by distorti

41、on on long sustained notes when playing Program Transcription records may be caused by any of the following: (a) Improper operation.It is very important when changing the speed shift lever from 78 R.P.M. operation to 33N R.P.M. operation, to place the hand on the turntable and hold it until it is po

42、sitively engaged by the driving mechanism. (b) Lack of proper lubrication.It is important that excessive grease on the gear reducing mechanism be avoided and that sufficient oil is present between the ratchet and the surface upon which it rests. Also clean and oil the spindle bearing and wipe off an

43、y excesslubricant that may be on the damper pads or the drive gear upon which it rests. Improper Adjustment of the Damper Pads. The damping pads with the necessary springs are provided to place a load on the 33N R.P.M. driving gear atall times while it is in operation. Placing such a load on the gea

44、r takes up any possible play and reduces the possibility of a wow during operation at the slower speed. Adjust these pads by slipping each spring to one side and bend them until they are life beyond the opposite surface upon which they rest.(See Figure 4). (d) Washers Not in Place. A metal washer is

45、 placed directly under the speed reducing mech- anism and a leather washer directly over it, both washers being over the spindle.These washers must be in their proper position.Also if the leather washer has become hard it must be replaced. In some cases, removing the speed reducing mechanism and tur

46、ning it approximately 90 and then replacing it, may eliminate a wow caused by improper meshing of the gears. (c) (e) PAGE 2 5 2-A AUTOMATIC RECORD CHANGER (2) ADJUSTMENT OF MAGAZINE ROLLER The magazine roller should be set in sucha position that the plane of the roller is 90 to a line drawn from the

47、 center of the magazine bearingto the center of the roller. The height should be adjusted so that it will just touch the magazine when it isempty. (3) FAILURE OF NEEDLE TO LOWERPROPERLY Failure of the needle to lower onto the smoothouter rim of the 10 -inch records when the instru- ment is playing a

48、utomatically may be caused by: (a) Improper Tone Arm Setting. Loosen the set screws as shown in Figure 5. With the mechanism out of its cycle, press the locating leverat a point near the flat spring until the lever strikes the stopscrew. Holding the locating lever, Figure 17, in this position, move

49、the front portion of the trip lever, Figure 15, until the pin against which the flat spring presses, is making contact with the locating lever. Holding the two levers in this position, move the pickup arm until the needle is if6 from the firstgroove of a standard 10 -inch record. Now retighten the two set screws shown in Figure 5. (b) Figure 5-Adjusting position of tone arm Figure 6-Adjusting tone arm locating screw Improper adjustment of tone arm locating screw. This adjustment, shown in Figure 6, can be used to make a substitute adjustment for that des