RCA-Victor-Co-Inc-D22-1A 电路原理图.pdf

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1、PAGE 262-B MODELS D22-1 ? FIELD L02 Pir T00 eLMO 2A3 cm Is19 144 2A3 i7 WO Avo.: 000 Maw. Rig POWERAMPLIFIER HRRR INDICATOR LIGHTS 00 loAoto RECORDING LIGHTS Roe tore -Schematic Circuit Diagram MODEL D 22-1 ONLY NOTE:In Model D22 -1A the receiver rectifier tube No.14is changed to type 514.Thephono.

2、motor is changed to a capacitor type.The input trans- former pack has a filter added. The power transformer resistance differs slightly. SEE NEXT PAGE FOR DETAILS PAGE 266-B D22-1 CAP. PACK .A CAR PACK -B -Loudspeaker Wiring Dynamic Amplifier PAGE 1,67-B D22-1 )s, 2 - 1.C, CCTCCTOR I 3 - OSCILLATOR

3、OV. ksCbS /C4S),/4 - 1C, I. r. .45.4v. ,5- 2,9 I.!: 6- AM.C. -LI _J7- A.V.C. A 143, it (iii, 8 - 2,/ OCTECTOR ,.elk3iN, N, 2 - 1,17 A.F. t -) I ,1.,- D10 -DRIVER 8v.241v. ,co,cozy 4.,. m11 -DRIVER . ., 8.8 14- RecTIIKR 129v. 242%! _ _ Ov.!ow*, cloy L,03C. COI r CHASSIS GROUND-,- IAke c7s- , xkn,c !

4、Ov. 1 IOv ! Ov.Or. c.6.v ) N.2. !/ -10C.7.4- ., 1fr- it , cgs .(c 1 5 t4 E sit, . ,145 MIX :I V.,.j TRIMMER - - I 8.9.11 2 ILL.t 11 It WV . -1- M TRIMMER t444 r-CIA4.45121 GROUND-, ij OK Ov. 111 3qPir, 4 TRANGF.1. -1- - C57; i K %4 (4 l_. -C44 C45- I Cool) 435V.( i 2,.2 F. 0, -.J TRANSI A !r v. i 6

5、V i f II Ov. Receiver Chassis .4v. IOv. L. 9,3v- OV.0 V. TO MOM TOOL ThCATMODA RAY 05CILLOORMOI -CHASSIS GROUND A.C. VOLTAGE .e v. I 2 0 v. EXPANDER 166 v.j211v. Ov. I6.3v, Ov ! j6.3v.n, 25v.I. RECTIFIER. i 2.1v. Dynamic Amplifier 4 15,5 v. Ov. Ov. 6.3wv 75yI iI t AMPLIFIER Ov. tI53 528 4 Ov. DRIVER

6、 *- -62v. Ov. 1 DRIVER VOLTAGE ,-2Avi.-ONLY WITH.-2Av.A., Ov.PHONOGRAPH ON I I IAMPL.jAMPL. I i I I .) ,., .A.G. VOLTAGE IRECT. Or F-325v. 295v.-55v.295 -55.295 -55v. 295 340 x i CHASSIS GROUND I- - - -1r- 1-1 I 11 i I I 11 I 1 - _ _ _ _ -1 1 I I LJI I (- / I I I / I I -_,/ .-, LI_ _ _J , 340 v. ry

7、4 ISN-527 Power Amplifier -Radiotron Socket Voltages (D22-1 and D22 -1A) Measured at 115 volts, 60 -cycle supply-No signal being received PA(4P 269-B HOLE IN SWITCH PANEL zW SWITCH LEADS BLACK R-221 CONTROL SWITCH 15 A BUS STR. END SHIELD 3 EXT.m 1 D -J CO 03 0 ce 0 W. 1/4.4kJ FC 0-1 CO Vogl -r i;rn

8、 c 00 o go 0Dro 1),Zr9 rn Mc Automatic Record Changer Adjustments MODEL 15-U ADJUST SCREW SO EJECTOR TIP IS DIRECTLY ABOVE SPINDLE ADJUST EJECT- OR TIP IN LINE WITH SPINDLE MODEL D-22-1 Record Damage: Records containing heavy bass response in the region from 50 to 80 cycles may be subject to damage

9、from groove or wall breakdown asa result of mechanical -acoustic feedback into the pickup unit. Subsequent playing of records so damaged results in abnormal distortion during the low frequency passages. This condition can berectifiedbyremovingordisplacing the mechanical and electricalresonances, and

10、 the undesired mechanical coupling that contribute eithersingly,or which may be accumulative. The following operations should be carried out to effect the necessary remedy : (a)Install rumble filter Stock No. 12037 adja- cent to phono compensation pack, connect- ing it between terminals No. 2 and No

11、. 6. Orient filter for minimum hum pickup. (b) Check lateral movement, of tone arm and adjustits associated parts to prevent any tendency to bind. The tone arm, rear lateral bearing, the twist of the pickup cable where itpassesthroughthisbearing,andthe adjustment of the friction finger should be esp

12、ecially noted. (c) The pickup unit should be examined and adjusted toassurethatitiscorrectly centered, that the attachment of centering spring to the armature is secure, and that the clamping of the spring to the magnet assembly is solid. (d) The motor mounting springs should have the proper flexibi

13、lity.To be certain that theseare correct,use StockNo.4562 which includes the following: TO ADJUST RISE AND SWING OF TONE ARM -WITH MANUAL INDEX LEVER IN12 POSITION AND ROLLER ON MAIN LEVER AENGAGED IN CAM AT HALF CYCLE POSITION AS SHOWN.AND SWITCH LEVERB AGAINST STOP SCREW C, ADJUST EYEBOLTDUNTIL LI

14、FT STOP ECONTACTS SLIDE AT THE SAME TIME ADJUST SCREW C SO THAT NEEDLE LANDS AT A RADIUS OF 513/16 + 1/i6-.000FROM CENTER OF TURNTABLE SPINDLE WITH MOTOR BOARD LEVEL. BRING POINTER ON SPACER IN LINE WITH SCREW AS SHOWN. IF NEEDLE SLIDES OVER SEVERAL GROOVES. ROTATE SPACER COUNTER -CLOCKWISE BUT NOT

15、FAR ENOUGH TO PREVENT NEEDLE FROM FEEDING INTO FIRST GROOVE AUTOMATICALLY. - Irlrfrrfifttli Model D-22-1Spring Combinations. Springcombination A correspondingto dimensions shown should be installed on each of two motor mounting studs supporting field coil assembly of motor (nearest rear of cabinet)

16、withspring above motor hoard and1- 3/16 -inch spring below. Springcombination Bcorrespondingto dimensions shown should be installed on motor studatendof gear case(nearestfrontof cabinet) with i-inch spring above motor board and 1 -B -inch spring below. (e)The motor board mounting springs should have

17、 the proper flexibility and be assembled correctly.The specified springs are Stock No. 3763.The-inch(length)springs should be installed below the motor board, and the others installed above. - RUBBER PICKEST IFROLLER FAILS TO ROLL BACKDURING AUTOMATIC CYCLE, ADJUST SCREW UP- WARD TO PROVIDE A GREATE

18、R INCLINE DUR- ING THE CYCLE.DO NOT ADJUST SO HIGH AS TO CAUSE EJECT- OR TIP TO FAIL TO TOUCH TOP OF TURN- TABLE FELT AT HIGH- EST POINT. 5N -I8R ADJUST TRIP ROD TO OBTAIN 1/111 CLEARANCE FROM MOTOR BOARD. ADJUST SCREW UNTIL FRICTION WILL JUST FORCE FINGER TO MOVE TRIP PAWL (WITH COVER REMOVED) TO A

19、DJUST MANUALINDEXFIN- GER PLACE MANUAL INDEX LE- VER IN THE POSITION SHOWN - SETMANUAL INDEXFINGER TO FORCE TRIP PAWL AGAINSTSTOP PIN - TIGHTEN SET SCREW. ADJUST AUTOMATIC SWITCH AS FOLLOWS - PLACE MANUAL IN- DEX LEVER IN POSITION SHOWN AND WITH SWITCH IN TRIPPED POSITION, ADJUST IT UNTIL THE CONTAC

20、T POINTS AREOPENED .02010 AS INDICATED (TURNTABLE REMOVED) ADJUST SCREW UNDER FRONT END OF TONE -ARM BRAGKET SO THAT FORCE REQUIRED TO JUST LIFT THE NEEDLE FROM RECORD IS 72 5 GRAMS (2.5 OUNCES). WEIGHT MEASURED WITH SCALE HOOKED UNDER NEEDLE SCREW. ADJUST TURNTABLE HEIGHT BY INSERTIONOR REMOVAL OF

21、THRUST WASHERS ROLLER A C 0 rn TO PAGE 277-B AUTOMATIC RECORD CHANGER REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers Stock No. DESCRIPTION MODELS 9U 9U2 D11-2D22-1 up to arm-Package of 10 PICKUP AND ARM ASSEMBLIES 1

22、2539Screw-Pickup needle screw-Package of 10 11720 Arm-Pickup arm, complete-less es, cutcheon and pickup unit 12544Spring-Pickup arm adjusting spring - Package of 10 11724Armature-Pickup armature MODELS 9U 9U2 1SU & 11548Back-Pickup back 11722Coil-Pickup coil (L24) D11-2 METAL RECTIFIERS & 11545 Cove

23、r-Pickup front coverD22 -1A 11546 Cover-Pickup back cover with mounting MOTOR ASSEMBLIES 3737 screws. Damper-Pickup damper-Package of 5. 9735 9651 Motor -105-125 volts -25 cycles (MO. Motor -105.125 volts -50 cycles (Ml). 3516Damper-Damp assembly for pickup 9650Motor -105.125 volts -60 cycles (M1).

24、11723 arm base -Comprising one upper and one lower damper-one upper bushing and one lower bearing Escutcheon-Pickup arm escutcheon 12050Suspension Spring-Motor mounting spring,washer,andstudassembly - Comprising six springs, six cup washers, three spring washers and three studs. 11721 Pickup-Pickup

25、unit, complete 12051Capacitor -2 Mfd., complete with2 -con - 11549Screw-Pickup front cover screw-Pack, tact male connector for use with motor, Stock No. 9650 or No. 9651 only (C74) age of 10 13101Capacitor -4 Mfd., complete with 2 -con - 3387Screw, nut and washer for mounting picks up to arm-Package

26、 of 10 tact male connector for use with motor, Stock No. 9735 only (C74) 11547Screw-Pickup needle screw-Package of 4674Connector -2 -contactmale connectorfor 10. Stock Nos. 12051, 13101 MODEL D11-2 MODELS D22-1 & D22 -1A MOTOR ASSEMBLIES PICKUP AND ARM ASSEMBLIES 9012Motor -105,125 volts -25 cycles

27、(M1). 11482Arm-Pickup arm complete-less pickup mounting 9014Motor -105.125 volts -50 cycles (M1). screw, escutcheon and pickup unit 9011Motor -105,125 volts -60 cycles (M1). 1)543Armature-Pickup armature. .02271 4 562Suspension Spring-Motor mounting 13405Armature-Pickup armature .D22.-1 A . spring,w

28、asher, and stud assembly - 11548 4064 Back-Pickup back Cable-Pickup arm operating cable-Package of 5 Comprising six springs, six cup washers, three spring washers and three studs. 11544Coil-Pickup coil-(L305)MODE L D 22 -1 11532Coil-Pickup hum bucking coil-(L306) MOTOR ASSEMBLIES 4674Connector-Twcep

29、rong male section of pickup cable connector plug-Stock Nos. 11514, 11524 805 5Gear-Pinion gear for motor spindle 11545Cover-Pickup front cover 9479 Motor -105-125 volts -25 cycles-(M1) 11546Cover-Pickup back cover with mounting screws. 9478 Motor -105-125 volts -50 cycles-(M1) 3737Damper-Pickup damp

30、er-Package of 5 9477 Motor -105-125 volts -60 cycles-(M1) 1 172 3 Escutcheon-Pickup arm escutcheon4562Suspension Spring-Motor mounting spring, washer, 11481Pickup-Pickup unit complete and stud assembly-comprising six springs, six cup 11549Screw-Pickup front cover screw-Package of 10 washers, three spring washers and three studs. 3387Screw, nut and washer for mounting pickup to arm MISCELLANEOUS -Package of 10 1 19 9 5Washer-Turntable spindle shim washer as - 11547Screw-Pickup needle screw-Package of 10sembly-comprisingonethinandone 11550Weight-Home recording weightthick washer-Package of 3