RCA-Victor-Co-Inc-12-2 电路原理图.pdf

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1、PAGE 5-A MODELS 12-1 25 Cycle. 110 Watts Number and Type of Tubes 2 RCA -38, 1 RCA -2A7, 1 RCA -2117. 1 RCA -2A:,. 111CA-80-Total 6 Toning Ranges540 K. C.-1300 K. C.-5100 K. C.-15.350 K. C. Undistorted Output 1.73 Watts MODEL 121 Electrical Specifications Voltage Rating105-125 Volta Frequency Rating

2、25, 30, 50 and 60 Cycles Power Consumption .30, 50 and0 Cycle, 105 Watts; 25 Cycle, 110 Watts Number and Type of Radiotrons2 RCA -58 1 RCA -2A7, 1 RCA -2B7, 1 RCA -2A5, 1 RCA-80-Total 6 Tuning Ranges540 K. C.-1500 K. C. and 5400 K. C.-15,350 K. C. Undistorted Output1.75 Watts MODEL 122 ivRCA VICTOR

3、DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A 收音机爱 好者资料库 RadioFans.CN L w F22 F, L 58 3V. 12 (.TV. 52 sus, f5 C. L.L2 CIL L3 L4 ct T-s 1.11.0. G3 ALL GNDS. TO Is MFD CHASSISEARTH GND. YELLOW - BROWN - 050w BROWN BACK INTERNAL CONNECTIONS OF POWER TRANSFORMER 74 .012t420 R-17, 50900

4、w RESISTOR BOARD CONNECTIONS 16.405 MHO, DIAL LAMPS /00 V. Cs 0.3 MOD. boo. L WS 53 C39 Ir II 91.in4D L5LO O a 2 5. Ca OSC. DE T 2A 7 3V.2 2fifV. 40 27n17.4w L7Lil O 0 4150 0 0 0 O0 O0 TSreo .42._ .050477 C20 C12 25-02 IV 75 0 10 L13 L14 O 80 14o /00 V. 50 Ss CI 56 aa . 43 a 12 C:i 018. FLI9 41410 I

5、F AMPL 58 31( 3tcsle! C25 09420. OC 80 /00 V. C26 5L, C41, 80.140 /.1/0r0 9 OS MOD 4 4 0211_ DET S. /00 V L)3 L14 220 118,1700. f 60006- sPKR.FIELD FAMPL 58 30 3 _L Z 9D 140 JMMFD O.IRFT -.Schematic Circuit Diagram MODEL 321 MODEL 320 IS ELECTRICALLY IDENTICAL TO MODEL 321 EXCEPT FOR THE INPUT TRANS

6、FORMER WIRING SHOWN AT RIGHT. REFER TO PRECEDING PAGE FOR INTERNAL WIRING OF CAPACITOR PACK, RESISTOR BOARD, TRANSFORMERS AND SPEAKER. cu PO, MMFD 119 DET : .1 C RZ3 200,000n BUS SHIELD EAT. SHIELD EXT. BROWN eRED 34 SHIELD EXT. 0 1;1L-0) INPUT TRANSFORMER BLUE R24Ld s 50.000 BUIE& YELLOW 3 .BLACK R

7、-25 5000. 7. L20, 500n I RI YELLOW GREEN 4 C-92 .01 MFD 125n 1k C-43 0.1 MED. T3 YELLOWRED MODEL 321 BROWN REEN INTERNAL CONNECTIONS OF INPUT TRANSFORMER Sc. SENDS ROI. / 1s Is,IF TRANSFORMER I 0 / 0 ose 0MANSE 0R.F. TRANSF.j) /LIR ( 0ANT. AI 0 O / Ii TRANSFORMERI LJ -Location of Line -Up Capacitors

8、 er s PAGE 477-$ 121, 122, 221, 320 84 321 RECORD VOLUME CONTROL R-23 100 0000 BLUE RED YELLOW 7UN 3CIE1- INPUT TRANSFORMER 22.80,.a 1.25 BLACK -0 I BREEN-0 2 YELLOW_* INTERNAL CONNECTIONS OF INPUT TRANSFORMER MODEL 320 )3,5A BLACK BLACK L-18 1290 TL t BLUE & YELLOW). 380 A 1-4 INTERNAL CONNECTIONS

9、OF SPEAKER Alignment Procedure With tuning condenser fully meshed set point- o that radial line adjacent to 540 coincides with pointer. STEP CONNECT HIGH SIDE OF TEST OSC. TO - TUNE TEST OSC TO - TURN RADIO DIAL TO ADJUST THE FOLLOWING FOR MAX. OUTPUT 1 I-F Grid In series with 0.01 mfd 370 Kc Quiet

10、point near 600 Re LW Band S&P of 2nd I-F Trans. 2 1st Det. Grid in series with 0.01mfd S&P of 1st I-F Trans. 3 Antenna in series with 200 mmfd 1400 Re 1400 Re LW Band Osc. R-F & Ant. Trimmers LW 4600 Re 600 Kc LW Band 600 Kc Trimmer Rock Gang 5Repeat Step 3 Es Antenna in series with 300 ohm 15000 Re

11、 15 Mc NSW Band Osc.t R-F A & Ant. Trimmers SW Osc. tracks 370 Ic above signal on all bands. Use capacity peak. Use maxis= capacity peak. ROCI GANCi PAGE 478-B 121, 122,221, 320 & 321 REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from aut

12、horized dealers Stock No. DESCRIPTION Stock No. DESCRIPTION RECEIVER ASSEMBLIES 6620Capacitor -Comprising one .005mfd.and one .035 mfd. (C35, C36) 2240Resistor - 30,000 ohms - Carbon type - 1 watt (R6) 6676Socket-6-contact Radiotron socketOut- put 2747Cap -Contact cap -Package of 5 6694-Condenser -3

13、 -gang variable tuning conden- 3056Shield -2nd detectorRadiotronshield - ser (C4, C9, C11) Package of 2 6695Volume control (R9) 3076Resistor -1 megohm-Carbon type -y2 watt 6696Switch -Range switch (SI, S2, S3, S.4) (RIO, R11) -Package of 5 6697Transformer -First intermediate frequency - 3118Resistor

14、 -100,000 ohms -Carbon type -M transformer (L13, L14, C23, C24) watt (R1, R3) -Package of 5 6698Transformer -Second intermediate frequency 3252Resistor -100,000 ohms -Carbon type -3/2 transformer (L15, L16, C26, C41) watt (RI, R3) -Package of 5 6699Coil -R. F. coil (L5, L6, L7, L8, C7, C8). 3170Resi

15、stor -6,500 ohms -Carbon type -1 watt (R20) -Package of 5 6700Coil -Oscillator coil (L9, LIO, LI I, L2, C12, C17) 3514Resistor -250,000 ohms -Carbon type -3/2 6701Coil -Antenna coil (L1, L2, L3, L4, Cl, C2). watt (R16) -Package of 5 6702Drive -Variabletuningcondenserdrive 3529Socket -Dial lamp socke

16、t assembly complete 3572Socket -7 -contact Radiotron socket 6703Capacitor pack -Comprising one 8. mfd. and 3594Resistor -50,000 ohms -Carbon type -34two 4. mfd. capacitors (C20, C22, C38) . watt (R11. R17) -Package of 56704Shaft -Tuning condenserdriveassembly 3631Resistor -850 ohms -Carbon type -M w

17、attshaft (R13) -Package of 56705Tone control complete (R22) 3639Capacitor -.02 mfd. (C34) 7485Socket -6 -contact Radiotron socket 3683Shield-Radiotron shield top7487Shield -I. F. and R. F. amplifier Radiotron 3701Capacitor -.01 mfd. (C6, C21) shield 3702Capacitor -.25 mfd. (C32) 9446Transformer -Pow

18、er transformer -105-125 volts 50-60 cycles (T1) 3768Screw -Square head No. 6-32-3d set screw for condenser drive -Package of 10 9451Transformer -Power transformer -105-125 volts 25-40 cycles 3796Capacitor -4. mfd. (C28). 9452Transformer -Power transformer -200-250 3849 Capacitor -50 mmfd. (C10)volts

19、 50-60 cycles 3859Socket -4-contact Radiotron socket10194Ball -Steel ball for condenser drive assembly 3861 Capacitor -Adjustable capacitor (C13) -Package of 20 3877 3878 Capacitor -.1 mfd. (C5, C15, C25, C33) Screw - -No. 4-40-136- screw for fastening station selector pointer -Package of 20. REPROD

20、UCER ASSEMBLIES MODELS 121, 122 & 320 3888Capacitor -.05 mfd. (C19, C27) 6476Transformer -Output transformer (T2) . 3892 Resistor -600 ohms -Carbon type -,14 watt9428Cone -Reproducer cone complete (L17) - (R2, R4, R7) -Package of 5 Package of 5 3897 Resistor -400 ohms -Carbon type -1 watt (R18) -Pac

21、kage of 5 9449 9450 Reproducer complete Coil-Fieldcoil ma gnet a nd cone support (L18) 3901 Capacitor -.05 mfd. (C3, C16) 3905 3906 Screw -Chassis mounting screw assembly comprising 4 screws, 4 washers, and 4 cush- ions Mounting assembly - Variable condenser mounting assembly comprising 3 bushings,

22、3 lockwashers, 3 nuts, and 3 washers 6770 6843 8935 9460 REPRODUCER ASSEMBLIES MODEL 221 Transformer -Output transformer (T2) Cable -3 -conductor reproducer cable Cone -Reproducer cone (L17) -Package of 5 Coil -Field coil, Magnet and cone support 3937Capacitor -300 mmfd. (C30, C31) (L18) 3938Capacit

23、or -9 mmfd. (C39) 9461Reproducer complete 3939Resistor - 3,500 ohms - Carbon type - watt (R21) -Package of 5 REPRODUCER ASSEMBLIES 3942Shield -1st detector Radiotron shieldMODEL 321 3943Screen -Translucent screen for dial light - 6770Transformer -Output transformer (T2) Package of 2 8969 9460 Cone -

24、Reproducer cone (L17) -Package of S Coil assembly -Comprising fieldcoil magnet andcone 3944Shield -Antenna, R. F.or oscillator coil support (L18) shield 9473Reproducer complete 3991Resistor -10,000 ohms -Porcelain type (R19) TURNTABLE ASSEMBLIES 3935 3936 4031 Capacitor 3261 3338 Bushing -Rubber bus

25、hing -Used on turntable spindle for long-playing records -Package of 5 Ring -Clamp ring assembly -Comprising spring, latch lever and stud. -340 mmfd. (C14) Capacitor -3,900 mmfd. (C18, C29, C40) Capacitor -2,700 mmfd. (C18, C29, C40). 4032Capacitor -390 mmfd. (C14) 3340 3341 Washer -Thrust washer -P

26、ackage of 2 Pin-Groov-Pin-Package of 2 6188Resistor -2 megohm-Carbon type -34 watt (R12) -Package of 5- 3342 3343 Spring -Latch spring -Located on clamping ring -Pack- age of 2 Sleeve -Sleeve complete with ball race 6282Resistor -60,000 ohms -Carbon type-Yr! 3344Cover -Grease retainer cover -Package

27、 of 2 watt (R5, R8, R15) -Package of 5 3346 3347 Bushing -Speed shifter lever bushing -Package of 4 Spring -Speed shifter lever spring -Package of 2 6571Capacitor -10 mfd. (C37) 3399Lever -Speed shifter lever with mounting screws 7084Cover -Suede cover for turntable 8948Turntable -Complete PAGE479-B

28、 121,122,221, 320 & 321 REPLACEMENT PARTS (Continued) STOK No.C DESCRIPTION STOCK No. DESCRIPTION MODEL 320 PICKUP. PICKUP ARM ASSEMBLIES 4075Knob-Range switch or tone control knob 3385Coil -Pickup coil -Package of 5 3386Cover -Pickup cover 4119Screw-No. 8-32-3. headless cup point set 3387 3388 Scre

29、w assembly -Pickup mounting screwassembly- Comprising one screw, one nut and one washer -10 sets Screw -Pickup needle holding screw-Pkg. of 10 screw for station selector knob-Package of 20 3389Rod -Automatic brake trip rod with lock nut -Package of 5 4120Knob-Volume control knob-Package of 5. 3390Es

30、cutcheon -Pickup armescutcheoncompletewith 4121Knob-Station selector knob-Package of 5. mounting rivets6614Glass-Station selector dial glass 3417 3418 Armature -Pickup armature Cushions -Pickuprubbercushions -Comprisingone damper and two spacer cushions and one damper 6615Ring-Retaining ring for dia

31、l glass-Pack- age of 5 3419 bushing -Package of 5 sets Screw -Pickup cover mounting screw -Package of 10 6841Dial-Station selector dial-Package of 5. 6335Pickup -Pickup unit complete6840Bezel-Metal bezel for station selector dial . 6346Back -Pickup housing back 6842Pointer-Station selector pointer-P

32、ackage 7693Arm -Pickup arm completelessescutcheon,pickup, pickup mounting screw, nut and washer of 5 MODEL 321 MODEL 320 PICKUP AND PICKUP ARM ASSEMBLIES MISCELLANEOUS PARTS 3386 3387 Cover -Pickup cover Screw assembly -Pickup mounting screw assembly com- prising one screw, one nut and one washer -P

33、ackage of 10 2947 3322 Leather -Friction leather -Package of 20 Switch -Automatic brake switch with mounting screws (S8) 3388Screw -Pickup needle holding screw -Package of 10 3430Box -Needle box with lid -Package of 2 3389Rod -Automatic brake trip rod -Package of 5 3615Knob -Tone control, range swit

34、ch, or phonograph volume control knob -Package of 5 3417Armature -Pickup armature 3881Escutcheon -Volume control escutcheon 3119 3516 Screw -Cover mounting screw -Package of 10 Damper assembly -Comprising1upper and1lower damper 1 upper and 1 lower bearing -For pickup base. 3899 3902 Escutcheon -Stat

35、ion selector escutcheon Knob -Station selector knob complete 3521Cover -Pickup back cover 3903Screw -No. 8-32-A headless cup point set screw for 20knob 3737 6346 Damper-Viscoloiddamping,block -Package of 5 Back -Pickup housing back 3904 station selector-Package of Knob -Volume control knob -Package

36、of 5 6601Pickup -Magnetic pickup complete 3940Pointer -Station selector pointer -Package of 5 3728Coil -Pickup coil (L19) 3941vial -Station selector dial -Package of 5 7731Arm -Pickup arm complete less pickup and escutcheon.6707Glass -Station selector dial glass 6708Ring -Retaining ring for dial gla

37、ss -Package of S MOTOR ASSEMBLIES 6755Besel-Metal bezel for station selector dial 3994t,over-Motor starting switch cover 3398Motor mounting assembly -Comprising 2 cup washers, 4 springs and 1 C washer 6757Volume control -Phonograph volume control (R23, S9, S10) 3599Motor mounting washer assembly -Co

38、mprising one screw,6758Transformer -Phonograph input transformer (T3). one washer and one lockwasher-Package of 3 sets.-6888Cable -3 -conductor reproducer cable 3817Stud -Motor mounting stud-rackage of 3. 9050Oscillator -Test oscillator -150 to 25,000 B. C. 8989Motor -Motor complete -105-125 volts -

39、60 cycle 10174Springs -Automatic brake springs -One set of 4 springs. 8990Motor -Motor complete -10S-125 volts -SO cycle 10184Plate -Automatic brake latch trip plate with mounting 8991Motor -105-125 volts -40 cycles screws -Package of 5 8992Motor -Motor complete -105-125 volts -25 cycle 8993 8994 Ro

40、tor and shaft for 105-125 volts, 60 cycle motor Spindle -Turntable spindle with fibre gear for 60 cycle motor MODEL 3 21 MISCELLANEOUS PARTS 8995Rotor and shaft for 105-125 volts -50 cycle motor 8996Spindle -Turntable spindle with fibre gear for 50 cycle 2917 Leather -Friction leather -Package of 20

41、 motor 3322Switch -Automatic brake switch with mounting screws 8997Rotor and shaft for 105-125 volts -40 cycle motor (S8) 8998 8990 Spindle -Turntable spindle with fibre gear for 40 cycle motor Rotor and shaft for 105-125 volts -25 cycle motor 3391Suspension spring and washer assembly for motor boar

42、d - Comprising one bolt, one top spring, one bottom spring, 2 cup washers, one C washer, and one nut 9001Spindle -Turntable spindle with fibre gear for 25 cycle 3430Box -Needle box with lid -Package of 2 motor 3941.Cover -Automatic switch brake cover 4075Knob -Tone control or range switch knob -Pack

43、age of 5. 3615 MISCELLANEOUSPARTS MODELS 121 & 122 Knob-Range switch or tone control knob 4119 4120 41:1 Screw -No. 8-32-44 headless cup point set screw for rn slat ion selector knob -Package of 20 Knob -Volume control knob -Package of 5 Knob -Station selector knob -Package of 5 (Model 121)-Package

44、of 5 4136Screw -Chassis mounting screw assembly -Comprising 3902peteKnob - Station selector knob com l 6611 four screws, four washers, eight cushions Class -Station selector dial glass (Model 121) 6615Ring -Retaining ring for dial glass -Package of 5 3903Screw-No. 8-32-A headless 6238Knob -Phonograp

45、h volume control knob -Package of 5 cup point set 6766Volume control -Phonograph volume control (R23, S9) . . screw for station selector knob-Tackage 6840Bezel -Metal bezel for station selector dial of 20 6841 Dial -Station selector dial -Package of S 3904Knob-Volume control knob (Model 121)- 6842 P

46、ointer -Station selector iiiiinter-Package of S Package of 5 6855Cable -3 -conductor cable with spade terminals -Repro- ducer cable 3940Pointer-Station selector pointer-Package of 5 6856 615 i7 Cable -3 -conductor shielded with male section of con - nection plug -Phonograph volume control Cable -2 -

47、conductor motor cable 3941Dial-Station selector dial-Package of 5.6858Transformer -Phonograph input transformer-Compris- 67%fiezel-Metal bezel for station selector dial glass (Model 121) ing one transformer, one reactor, one .01 mfd. and 0.1 mfd. capacitors, one 5,000 and one 50,000 ohm resistor (T3

48、, R24, R25, C42, C43, L20) 6707Glass-Station selector diallass10174Spring -Automatic brake springs -One set of 4 springs - 6708Ring-Retaining ring for dial glass-Pack- age of 5 10184 Package of 2 sets Plate -Automatic brake latch trip plate with mounting screws -Package of 5 6752 Knob-Station selector knob (Model 122)- Package of 5 6753Knob-Volume control knob (Model 122)- Package of 5 6754Knob-Range switch or tone control knob (Model 122)-Package of 5 6755Bezel-Metal bezel for station selector dial glass (Model 122)