RCA-Victor-Co-Inc-R-98 电路原理图.pdf

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1、PAGE 652-C MODEL R-98 Chassis No. RS -77 Five -Tube, A -C, Electric Victrola (Phono. only) Electrical and Mechanical Specifications RCA TUBE COMPLEMENT LOUDSPEAKER ( I ) RCA -6J5 1st Audio Amplifier Type Eight -Inch Electrodynamic (2) RCA -6J5 2nd Audio Amplifier Voice Coil Impedance 1.3 ohms at 400

2、 cycles (3) RCA -2A3 . Power Output (4) RCA -2A3 Power Output (3) RCA -5U4 -G POWER SUPPLY BATING A A-6 POWER OUTPUT Undistorted Maximum . Rectifier 105-125 volts, 50-60 cycles, 175 watts 105-125 volts, 60 cycles, 175 watts 12 watts 13.5 watts MOTOR BOARD Motor Self-starting Induction Turntable Spee

3、d 78 r.p.m. (adjustable) PICKUP Type Crystal Impedance 100,000 ohms at 1,000 cycles Cabinet Dimension Height 141 inches Width 192 inches Depth 14 inches Chassis Base Dimensions Height 22 inches Width 161 inches Depth 72 inches eight (Shipping) 54 pounds Weight (Net) 471 pounds LOUDSPEAKER CONNECTION

4、 PICKUP JACK JACK FOR. MOTOR& SWITCH Top View, Showing Location of Parts R-98 MEDIUM BASS MEDIUM 11 OFF 19 LULL FULL POWER -HIGH) LOW FREQUENCY VOLUME FREQUENCY CONTROL CONTROL CONTROL SOFT LOUD Location of Controls Replacement Parts Insist on genuine factory -tested parts, which are readily identif

5、ied and may be purchased from authorized dealers. SPEAKER PLUG PRONG VIEW) CABLE PLUG 1(90604 498 BLACK VOICE COIL L-2 HUM SUET COIL GREEN L-4 RED &YELLOW RED & BLACK BLACK BLACK FIELD COIL L-3 SECONDARY T3 SECONDARY T3 BROWN &BLACK-GNU. AT R-14 BROWN C.T. OF H.V (T1) Connections of Loudspeaker and

6、Cabla STOCK No. DESCRIPTION STOCK No. DESCRIPTION AMPLIFIER ASSEMBLIES 31618 Coil-Field coils and laminations for 60 cycle motor 12723 Capacitor -56 mmfd. (C3, C4) 11703 Governor-Governor complete for 50-60 cycle 12635 Capacitor -1,000 mmfd. (C15, C16) motor 31033 Capacitor -1,500 mmfd. (C2) 31623 G

7、overnor-Governor complete for 80 cycle 30303 Capacitor-.0035 mfd. (C7, C14) motor 4838 Capacitor-.005 mfd. (C6, C17, C18) 31462 Motor -105-125 volts, 50-60 cycle 5148 Capacitor-.007 mfd. (C13) 4937 Capacitor-.01 mfd. (C5) 31616 Screw-Rotor bearing screw and nut for 60 and 32787 Capacitor-.05 mfd. (C

8、9) 50-60 cycle motor 14626 Capacitor-.07 mfd. (Cl) 31620 Screw-Speed regulator screw and nut for 60 and 12484 Capacitor -0.25 mfd. (C10, C12, C22) 50-60 cycle motor 11203 Capacitor-Electrolytic, 10 mfd (C20) 31621 Shaft-Turntable spindle and gear for 60 and 14273 Capacitor-Electrolytic, one 10 mfd.,

9、 and one 20 50-60 cycle motor mfd. sections (C8, Cll) 31622 Washer-one felt and one metal thrust washer 11496 Capacitor-Electrolytic, 18 mfd. (C21) for turntable spindle 14531 Capacitor-Electrolytic, 25 mfd. (C19) 32914 Weight-Governor weight and spring for 50-60 33396 Control-H.F. tone control and

10、switch (51, S4) cycle motor 33397 Control-L.F. tone control (S3) 32912 Weight-Governor weight and spring for 60 cycle 5040 Plug-Speaker cable plug motor 12466 Reactor-Filter reactor (L1) 12194 Resistor -1,800 ohms, watt (R10) AUTOMATIC SWITCH ASSEMBLIES 33482 13714 14559 Resistor-voltage divider, 3,

11、800 ohms (R14) Resistor -5,600 ohms, watt (R6) Resistor -10,000 ohms, . watt (R2) 32863 Cam-Cam assembly comprising main and auxiliary cams, hub, and set screws 12738 Resistor -27,000 ohms, watt (R4) 32864 Lever-Actuating lever with roller and mercury 12266 Resistor -39,000 ohms, watt (R1) tube clip

12、 12286 Resistor -56,000 ohms, watt (R12) (R3). 14195 Screw-No. 10-32 x 5/16 cone pointer set screw 17440 Resistor -58.000 ohms, 1 watt (R11) for cam hub 14560 Resistor -100,000 ohms, watt (R7) 32869 Screw-No. 10-32 x 5/16 set screw for cam hub 13734 Resistor -120,000 ohms, watt (R13) 32868 Spring-Ac

13、tuating lever tension spring 12199 Resistor -270,000 ohms, watt (R8) 32867 Spring-Cam tension spring 12285 Resistor -470,000 ohms, watt (R9) 32865 Support-Switch support and terminal board. 4794 Socket-Tube socket -4 -prong 32866 Switch-Mercury tube with leads (S2) 32537 Socket-Tube socket -8 -prong

14、 31608 Washer-C washer for actuating lever shaft. 14275 Socket -2 contact female for motor power SPEAKER ASSEMBLIES 14274 13964 Socket -2 contact female for pickup input Transformer-Driver transformer (T2) (84613-1) 33405 Transformer-Output transformer (T3) 33648 Cone-Cone assembled with voice coil,

15、 center 14271 Transformer-Power transformer, 105-120 volts, suspension and rim gasket 50-60 cycles 5039 Plug -4 -prong male connector for reproducer. 33398 Volume Control (R5) 33490 Speaker complete (No Output Transformer). MISCELLANEOUS ASSEMBLIES PICKUP AND ARM ASSEMBLIES 13103 Cap-Pilot lamp bull

16、seye 33399 Arm-Pickup arm less crystal cartridge, cable, 33403 Cup-New needle cup and base and pivot arm 9848 Cup-Used needle cup and pickup arm support 33400 Base-Pickup arm base and pivot shaft Cable-Pickup 31464 Damper-Turntable damper sleeve and plate. 32885 11771 Foot-Cabinet foot arm cable and

17、 plug Crystal-Pickup crystal cartridge and screw 31156 13085 Hinge-Cabinet lid hinge 31160 Screw-Pickup needle screw 31355 Knob-Volume control, or tone control knob. MOTOR ASSEMBLIES 33402 14805 Mounting-Motor mounting screws, washers, and spacers Plug-Plug for motor leads 31617 Bracket-Governor end

18、 bearing bracket less bear- 31155 Spring-Coil spring for used needle cup lid ing screw for 50 and 50-60 cycle motors 14270 Spring-Retaining spring for knobs 31619 Coil-Field coils and laminations for 50-60 cycle motor 31164 Support-Cabinet lid support a a . a . awake . ai di _ . a - w 收音机爱 好者资料库 Rad

19、ioFans.CN PAGE 653-C R-98 R1 C2 39000A ISOOMMF. (SHOWN ,N COUNTER - - CLOCKWISE POSIT IGN- MIN. BASS) PLUG 52 TI G).l 1J A.F. 3.5V. C8 0. M A 2GMFD. R6- 5600- 56 MMF RS -VOL.CCN T. 1.5 MEC, TOTAL ZSO,000n TAP R4 27000-A- /.7 7 CRYSTAL 0035 PICK-UP MFD. 1 VOL. 1 CONT. ) 5 4 REAR VIEW GRF- rN 4.9V. Ac

20、 PEEN ?RCIWN 160 n BLFtCK- f3F+cWN PF-WN i3LLE H b Ac HEr,TEk5 5 . BLi EPIOT LAMP YELLOW BLUE -YELLOW 2.S V. AC OUTPUT TUBE FILS. 81 -AC.( -1%._ YELLOW 03 MA - FJJti. pA.F 3. faro RIO+ 1800 CII IOMFD1 C9 .05 MFD. 6TV.* I C/3 1 1 003 ,Z MFD. d C14 = 54,0055 J R 9 MFD. 470,000,- R7 104000 CIO MFD. -R8

21、 270,000 H F TONE CONTROL 5W (CHOWN IN 2/92 FROM COONTEP- _ LOOK W ISE POSITION - MIN.HIGHS) H 5U4 -G 390V. RECT. ISO MA 160 . + CI9 = 25 MFD. 12 !tt P846S6-2 NOTE: Values with star are q.crating voltages in circuits uh high series -resistance, and when measured will read Laver de- ivding ou the vol

22、tmeter loading. SPEED ADJUSTMENT (SCREW) TO DECREASE SPEED TURN CLOCKWISE TURN SPEED ADJUSTER 30 THE FEL WILL PROTRUDE 16 WHEN ALL THE WAY IN. ADJUST GOVERNOR SO AS TO LEAVE )Io BETWEEN FELT AND DISC, THEN SECURE BY MEANS OF GOVERNOR SCREW. RUBBER SPINDLE PIECE ADJUST SO THAT SHAFT 13 FREE TO ROTATE

23、 WITHOUT END PLAY REMOVE TAKE OFF GOVERNOR APPLY OIL TO FELT PAD 1 METAL l I WASHER SPEED ADJUSTMENT LOCK NUT OIL KEEP FILLED WITH LIGHT OIL TO INSURE SMOOTH OPERATION Da NOT CHANGE THIS ADJUSTMENT .111,1ur Lubrication and Adjustments ACTUATING LEVER CLIP ROLLER SN -8S1 AUXILIARY CAM CAM SET SCREWS

24、MAIN CAM MERCURY TUBE Mercury Switch Assembly LShown with pickup in rest position) Adiust main cam so that switch trips into the -Ott position when needle is 1.4 inches from the center line of motor spindle. 135V. C12 0.c5 MFD. 788 T._ - RED -GREEN RII 56000n T0Ov. BLUE- YEL OW (114 38001L C20 C21 1

25、0 MED 18 MFD. SPEAKER FIELD 2 A3 -OUTPUT TEL 1 uW T2 BL IE io4470tL Cts o IMMFT BLUE 2A 3 OUTPUT .F F-. -G 1000 MMF. I 32 MA 300V HUM HEUT. CO) L L4 RED C18 OrylFp RED - BLACK R12 C22 R13 54000- 0-55 120,000 Mi IJ. I eal.ul cnlents m:Idc t ch:Issls nn!ea otherwise indicated. volume control at minimu

26、m. Values should lutl.l within approxiututely with 117 -volt a -c supply. Motor Revision: The governor motor Stock No. 31461 origi- nally specified on Model R-98 is no longer used, and is replaced by the following: (-Motor Stock No. 32135 -60 -cycle, non - governed constant speed type (same as used

27、in U-115). II-Mounting Adaptor Kit Stock No. 35735- for Stock No. 32135-containing : (a) 1-Motor mounting adaptor plate. (b) 3-Screws for mounting plate to motor. (e) 3-Screws for mounting plate to motor - board. (d) 3-Spacers for separating plate from motor. (e) 3-Washers for motor mounting screws.

28、 To install, assemble plate (a) to motor No. 32135 using spacers and screws provided. Mount motor and plate assembly to motor - board of cabinet, using the original flexible mounting grommets and eyelets. If necessary, shift motor or chassis slightly to give clearance between the two. Remove plug fr

29、om leads of original motor and attach same to leads of new motor. Hum of Maximum Volume: Wherever excessive hum is apparent, the dress of the pilot lamp lead should he checked. It should be positioned to the rear of the chassis hase, well away from the audio circuits. Additional Replacement Parts: Stock No. 33401 Turntable -12 -inch diameter 33404 Turntable -10 -inch diameter 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN