RCA-Victor-Co-Inc-280 电路原理图.pdf

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1、PAGE 550-B MODELS 280, 380 :e.r 1 5.5 1 1.759 O 4 R.26 50000n 0. 29 sow .n. 0 -4-11 0- 61I0 011. /5 io tzs000si SECTION REFER TO INDEX FOR SERVICE DATA ON AUTOMATIC RECORD CHANGER. L-17 3.8 C44 JIMA 0 Irk l - L 1:14 520. 115o. i g e -iiRif rt740 14211.C-34 0.714FR 4490.0 DRIVERS RCA R-33 ,/ 2.MEG. C

2、-17 5064 1621 4.0VO. Ik2 60000. V e .56Arr -2 50 00 0 4 SEc,019 -Schematic Circuit DiagramMODEL 380 收音机爱 好者资料库 RadioFans.CN ;W. 1 R. I R./. AWL. RCA 58 L-2 s W4Nnn W. 019,9. Fo a 2.44260.Lo C-50 - 0.1 MED Pi 5-7 COMP. LAMP 2 12 L-18. 59 OCT. CA 523 400260, - 514=25N 15 5,F0. C-13 R -S T4.161F0. 1000

3、00. C-40 a_6.19FIL -L-19 2950 smelt. nun M-19.26.50 62.6.nr.22. 2 14-333 F0. NOS 50 PU4-0. C-21 w -D.Vair2110. C-54 soo P.m C-14c-os 1-5 Alb 1- 7 L-6 3tool C-451661 10.21f1kC23 RIF 300 50055. C-46 C-48 .005 p,FD. C -4T T-5 7 5,gt. 12.5000 IL SECTION R_28_R29 500on._ _; 4 REFER TO INDEX FOR SERVICE D

4、ATA ON AUTOMATIC RECORD CHANGER. ;L-9 418 L-8 915 c 22 ro-6 F. 08000 WR V.C. 511AFT 55-250000_2 SECTION 0-23 0.1 WO. Rls.100 60 0 4001000 .:2.2v. I 44 ,C-26 -26MFR 0-17 =0.11100. 1_ C-20 0-140-21C-33 MO 210140-120MOO0.15 WO. MMFO. W.1119.P. L -I3 1 21. OCT , 41.5 , RCA 55 I L-12 41.5 , C 49 to. 61F0

5、 7 DOD C42 0.16 20,000A R2 200fl C-34 .02.1 WO. IL -14 850. - 00R0 000 R-14 elor L-18. -520 TOTAL CRON loao. notion -77r075 0N17 FL 0-2441Th 271.6-2= AUDIO DRIVERS RCA 56 R.11 4.1109. (i-Z2 60 coo. - 1 11 ;1 RADIO RECEPTION I I - 7.71- 7H3-2 RADIO RECORDING II II + 1-; FI-I 3 RECORD REPRODUCTION I 1

6、 t 1 1 1 1 I i I 1-4 HOME RECORDING I 1 -Schematic Circuit DiagramMODEL 380 HR 收音机爱 好者资料库 RadioFans.CN PAGE 553-B 280, 380 & 380 HR 1-30 44 4000 A418 $111.L-21 1-29 C-47 ROIL 50.000 a 5900A 1 25A COMPARTMENT S-7 LAMP SWITCH 7 INTERNAL CONNECTIONS OF INPUT TRANSFORMER PACK SHIELD SHIELD TERMINAL BOAR

7、D BLACK MAGNETIC PICKUP L-20 YELLOW YEllOw CLAMP RECORD VOLUME CONTROL R-31BLACK=/875000 TUNING METER BLACK k C. INPUT PLUG RED & BLACK RED VOICE/1 COIL BLACK L-17 21A KKK 21 son. MELD COIL COMPARTMENT LAMP MOTOR SWITCH - PHONOGRAPH MOTOR BLACK RED SPLICE BLACK i RED VOICE FIELD COIL _.0 IL. INPUT I

8、NTERNAL CONNECTIONS OF TRANSFORMER PACK SPEAKER MODEL 380Assembly Wiring Diagram RECEIVER SPEAKER PAGE 554-8 280, 380 & 380 H R R-29 5000A R-30 lCIA aE 400011MFD. C-4 7 50,000 a T-5 L- 21 0 06 MFD. C-46 0.008 MID GREEN BLACK 101.2.3 INTERNAL CONNECTIONS OF INPUT TRANSFORMER PACK BLACK BLACK WITH RED

9、 TR. 8aCr A. C. INPUT iey INPUT TRANSFORMER PACK COMPT. LAMP MAGNETIC PICKUP LEVEL INDICATORS BLACK 1.-YELLOW MICROPHONE RECEP. BLACK WITH RED TR.-to bo YELLOW WITH 0 GREEN TR. EAR BROWN WITH RED TR. R1,01 i 1 BROWN PHONOGRAPH MOTOR METER TUNING . . RECEIVER BLACK YELLOW WITH RED TR. BLACK & RED 4 I

10、II YELLOW HELD COILCONE COIL ILD KiiKAUMILC AIVI :PM 42/ WN DUCK L RED tj -0BLUET-4o GREEN-4:cir- .-Ti .1: I BLACKI -.?-11.- -vi. ._ SPEAKER GREEN RED BLUE RANGE SWITCH BLACK GREEN BLUE RED BROWN BLACK L RED BROWN MODEL 380 HR-Assembly Wiring Diagram IHISJ1014 wrm Ai BROWN MICROPHONE PLUG GM WITH RE

11、D TR. BLACK WITH YELLOW TR. BLACK & BROWN YELLOW WITH BLACK TR. RED L GREEN BROWN BLACK RLUE - ED L YELLOW. /YEGREEN - LLOW 1WITH RED TR. 1RED WITH YELLOWIR BLACK -1- WITH RED TR. SOMA GREEN TR. TRANSFER SWITCH N PAGE 555-B 280,380 & 380 HR RADIOTRON SOCKET VOLTAGES (RADIO OPERATION) 120 Volt A. C.

12、Line -Volume Control and Sensitivity Control at Maximum -No signal being received Radiotron No. Cathode to Control Grid, Volta Cathode to Screen Grid, Volts Cathode to Plate, Volts Plate Current, M. A. Heater Volts RCA -58 R. F.3.1972127.52.5 RCA -56 Osc.-1006.02.5 RCA -58 1st Det.9.5912062.82.5 RCA

13、 -58 I. F.7.5932084.02.5 RCA -58 A. V. C. -I. F.8.5922073.02.5 RCA -56 A. V. C.12.0-02.5 RCA -55 2nd Det.0-748.02.5 RCA -56 A. F. Driver11.0-2055.02.5 RCA -56 A. F. Driver11.0-2055.02.5 RCA -59 Power0-39413.02.5 RCA -59 Power0-39413.02.5 RCA -5Z3 Rect.990-495 R. M. S.92 Total5.0 Alignment Procedure

14、With tuning condenser fully meshed set dial so that end calibration coincides with pointer. Set silent tuning control for maximum sensitivity. -Location of Line-up Capacitors 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 Gr

15、id in series with 0.01 mfd 175 Kc Quiet point near 600 Kc BC Band S&P of 2nd I -F Trans. 2 1st Det. Grid in series with 0.0imfd S&P of 1st I -F Trans. 3 Antenna In series with 200 mmfd . 1400 Kc 1400 Kc IBC Band Osc.Det. & R -F Trimmers on gang condenser 4800 Kc 600 Kc NBC Band 600 Kc Osc. Trimmers

16、Rock Gang 5Repeat Step 3 62440 Kc 244 Kc SW Band Osc. Det. & R -F Trimmers on range switch REPLACEMENT PARTS Insist on genuine factory tested parts, which are readily identified and may be purchased from authorized dealers Stock No. DESCRIPTION Stock No. DESCRIPTION MODEL 280 RECEIVER ASSEMBLIES 359

17、1 3615 3633 Capacitor -0.25 nifd.ibtar Knob -Range switch knob -Package of Scale -Tuning meter scale -Package of 5 2730Resister -18,000 ohms -Carbon type -1 watt (R24) - Package of 3640 3641 Capacitor -0.05 rrifd. (CO, C22. C26) Capacitor -0.1 mrd. (C7. C13, C23, C25, C27) 3024 Capacitor -9 mmfd. (C

18、2) -Pad, age of 2 3543Capacitor -0.005 rola-Output stage -In series with 3017Reaistor-1,500 ohm* -Carbon type -ii watt(R8) - 18.000 ohm resistori C39) Package of 53719Socket-7-contact liadiotron socket 3085 Capacitor -400 modal. (C311) 3726Arm -Range switch operating arm assembly -Comprising 3118 Re

19、sistor -100,000 ohms-Carbou type-% watt (115) - arm, link, etude and set screws 3252 3435 Package of 5 Resistor -100,000 ohms -Carbon type-watt (116, R7) -Package of Resistor -250 ohms -Carbon type-%. watt (R2) -Pack- ageof5 3727 3747 Shaft -Shaft and hushing assemblyforrange switch operating arm -C

20、omprising two washers, shaft, bush- ing and nut Capacitor -15 mmfd. (CR) 3460 3526 Capacitor -1.200 rnrnfil. (C31) ne,i,.-2.000 ohms -Carbon type- !-Swatt(R4) - Package of 5 3749 3765 3774 Capacitor -0.1 mfd.-Tuning meter filter (C40) Capacitor -0.025 mfd. (C34) Resistor -7.400 ohms -Tapped at 3.800

21、 and 500 ohms 3527 Resistor -800 ohms -Carbon type -3( watt(R19) - Package of S 3780 (1125, R26, R27) Shutter -Noise suppressor shutter 3529Socket -Noise suppressor orvolumeindicatorlamp 3781Shutter -Volume control shutter socket3782Shield-Radiotron shield -Second detector 3533 Shutter -High frequen

22、cy tone control abutter 3797Reactor -Volume control compensating reactor (LIS) 3535 Shistter-1,w frequency tone control shutter 3798Resistor -700 ohms -Carbon type -y% watt (R18) - 3335 Socket -High or low frequency indicator lamp socket Package of 5 3548 Knob -High or low frequency tone control kno

23、b 3799Capacitor -80 mmfd. (C30) 3151 Screw- assembly -Chassis mounting washer and screw assembly -Comprising4screws,4lockwaehers, 4 3883 4013 Fuse- 2 amperes -Package of 5 Capacitor -200 mmfd.-C1 washers. 8 cirshions and 4 spacers -One set 5817 Resistor -20,000 ohms -Carbon type -3 watts (1115, R16)

24、. 3556 Capacitor -0.05 mfd.-Located on antenna coil (C3) 6186 Resistor -500,000ohms -Carbontype -Located on 3358 Capacitor -SO mmfd. (C19)antenna coil (R1) -Package of 5 3563 3564 Socket -Tuning meter lamp socket and bracket Bracket -Station selector dial lamp bracket 6192 Spring -3 -gangtuningconde

25、nserdrivecordtension spring -Package of 10 3365.Socket -Dial lamp socket PAGE 556-B 280,380 & 380 HR 1 pr,I01111. WI 0 1101,10.111,4,1111, Stock No. DESCRIPTION Stock No. DESCRIPTION 6228 MODEL 280 CONT. Resistor -200,000 ohms-Carbon type -5 watt (R14)- 3529Socket-Noise suppressor. volume control la

26、mp socket or tuning meter Package of 53533Shutter-High frequency tone control shutter 4280 Resistor -400.000 ohms-Carbon type -34 watt (R11,3534Shutter-Low frequency tone control shutter R12, R13)-Package of 5 3535Socket-High or low frequency tone control lamp socket. 6281Rea yr-1.100 ohms-Carbon ty

27、pe -3watt (B23)- Package of 5 3556Capacitor -0.05 mfd.-Located on antenna coil (C3) 6282 Resistor -60.000 ohms-Carbon type -34 watt (R22)- 3558Capacitor-SO mmfd. (C19) Package of 53564Bracket-Station selector dial lamp-Mounting bracket. 6288 Knob -Volume control or noise suppressor knob-Package 3563

28、Socket-Station selector dial lamp socket of 5 3597Capacitor -0.25 tad. (C33, C45) 6298 Cord-3-geng tuning condenser drive cord-Package of 5.3640Capacitor -0.05 mfd. (C9, C22, C26) 6300Socket -4 -contact Radiotron socket 3641Capacitor -0.1 mfd. (C7. C13, C23, C25, C27) 6312 Capacitor -650 mmfd. (C15)

29、-Package of 5 3643Capacitor -0.005 mfd. (C39) 6316 6323 Resistor -2,500 ohms-Carbon type-, watt (R10)- Package of 5 Shaft -3 -gang variable tuning condenser drive shaft- Comprising I shaft, 2 C washers and 2 net washers- 3652 3719 Screw-No. 10-32-14 set screw for bracket and bushing assembly-Package

30、 of 10 Socket -7 -contact Radiotron socket Package of 23726Arm-Range switch operating arm aaseinhly-Comprising 6437Coil-Oscillator coil (L5, L6, L7) arm, link, snide and set screws 6.147Volume control plete with mounting not (1120) 3727Shaft-Shaft and bushing assembly for range switch operat- 6448 T

31、one control-Low frequency tone control complete with ing arm-Comprising two washers, shaft, bushing and nut. mounting nut (R17) 3747Capacitor-I5 mmfd. (C8) 6149 8450 6461 Tone control-High frequency tone control complete with mounting tint (021) Rheostat-Noise suppressor rheostat (R3) Meter-Tuning m

32、eter 3749 3765 3771 Capacitor -0.I mfd. (C40) Capacitor -0.025 nifd. (C34) Resistor -7,100 ohms-Tapped at 3.800 and 500 ohms (1(25, 11.6, 827) 6512 Capacitor -0.005 mfd.-High frequency tone control (C37). 3797Reactor-Volume control compensating reactor (LI5) 6536Capacitor -3 -gang variable tuning co

33、ndenser assembly. 3798Resistor -700 ohms-Carbontype -34 watt(1418)- 6537Switch-Range switch Package of 5 6539Coil-Detector coil (L3, L4) 3799Capacitor80 nynall. (C30) 6511Scalc-Dial and dial scale 3883Fuse -2 -ampere (F1) -Package of 5 6547 Bezel-Tuning meter betel 4013Capacitor -200 mmfd (CI) 6456

34、Escutcheon-Volume control escutcheon and color screen. 4035Switch-Radio-Phonograph switch (SO) 6457 Escutcheon-Noise suppressor escutcheon and color screen. 4036Shield-Low or high frequency tone control light shield 6458Escutcheon-High and low frequency escutcheon and color screen 4037Shield-Antenna

35、, detector or oscillator shield 6561 Coil-Antenna coil (LI, L2, RI) 4038Shield -Radiotrort shield 6562 6563 Transformer-Driver transformer (T3) Reactor-Volume control series reactor (L16) 4039 4040 Shield -Radiotron shield -Second detector shield Shield -Radiotron tube shieldtop 6561 Transformer-Fir

36、st intermediate frequencytransformer 4011(-over-Fuse cover tC20, C2I. C24, L8, L9, R9)4042Reactor-Volume control series reactor (116) 6565 Transformer-Second intermediate frequency transformer4046Resistor-2-megohm-Carbon type -34watt(R33)- Package of 5 6166Transformer-Third intermediate frequency tr

37、ansformer (C28, C29, 1.12. 1.13) 4129 Bracket-Bracket and bushing assembly for radio-phono- graph switch shaft-Located on receiver chassis 6367Capacitor pack -Comprising one 0.17 tad. and one 0.7 4130Shield-R. F. Radiotron shield mfd. capacitors (C35, C36) 5817 Resistor -20.000 ohms-Carbon type -3 w

38、att (1115, RIO) . 6568 Transformer-Interstage audio transformer (T2) 6186 Resistor -500,000 ohms-Carbon type- ., watt-Located 1,571Capacitor -10.0 mfd. (C43, C44) on antenna coil (R1)-Package of 5 6572 Reactor-Tone control reactor (L14) 6192 Spring -3 -gang tuning condenser drive cord tension spring

39、 6574 Capacitor pack-Comp gtwo 10.0 mfd. capacitors-Packageof 10 (.32, C41) 6228 Resistor -200,000 ohms-Carbon type -34 watt (R14, 6578Reactor-Filter reactor (LI8) 1131, R35, R36)-Package of 5 6618Cahle-Braid covered -4 -conductor -Reproducer cable. 6277 Capacitor -0.1 ad.-Located on rectifier socke

40、t shield 7062 Capacitor-Adjustabletrimming capacitor -15 to70(C50) runif.1 6280 Resistor -400.000 ohms-Carbon type -34 watt (RII, 7065Screw driver-Non-metallic screw driver for oscillator and. R12. 11I3)-Package of 5 I. F. adjustments 6281Resistor -1.100 ohms-Carbon type -34 watt (R23)- 7439 Drum-Di

41、al drum with set screw, and three dial mountingPackage of 5 ants 6282 Resistor -60.000 ohms-Carbon type -34 watt (R22)- 7484 Socket -5 -contact Radiotron socket Package of 5 7485Socket -6 -contact Radiotron socket 6298Cord -3 -gang tuning condenser drive cord-Package of 5. 7487Shield-Radiotron shiel

42、d6300Socket -4 -contact Radiotron socket 7488 Shield-Radiotron shield top 6312Capacitor -650 mmfd. (C15)-Package of 5 9028Transformer-Power transformer -105-125 volts -50-60 cycles (TI) 6316 6437 Resistor -2.500 ohms-Carbon type-% watt (R10)- Package of 5 Coil-Oscillator coil (L5, L6. L7) 9029 Trans

43、former-Power transformer -105-125 volts -25-40 cycles 6.447 6448 Volume control (R20, Si) Tone control-Low frequency (R17) 9030 Transformer-Power transformer -200-250 volts-S0-60 6449Tone control-High frequency (R21) cycles 6450Rheostat-Noise suppressor rheostat (R3) 6512Cpacitor-0.005 mfd. (C37) MO

44、DELS 380 & 380HR 6537Switch-Range switch 6539Coil-Detector coil (L3, L4) RECEIVER ASSEMBLIES 6541Dial-Tuning condenser dial and scale 6561Coil-Antenna coil (LI, L2, RI, C3) 2730 Resistor -18,000 ohms-Carbon type -1 watt (R24)-6562Transformer-Audio driver transformer (T3) Package of 56564Transformer-

45、First intermediate frequency transformer 2747Cap-Contact cap-Package of 5(L8, L9, R9. C20, C21, C24) 3024Capacitor -9 mmfd. (C2)-Package of 2 6565Transformer-A. V. C. intermediate frequency transformer 3047Resistor-I,500 ohms-Carbon type-watt (R8)- (L12. L13, C28. C29) Package of 5 6566Transformer-S

46、econd intermediate frequency trahsformer 3085Capacitor -400 mmfd. (C38) (110.t LII) 3118Resistor-I00,000 ohms-Carbon type -34 watt (R5)- Package of 5 6567Capacitor pack-Comprising one 0.17 mfd., and one 0.7 mfd. capacitors (C35, C36) 3252Resistor -100,000 ohms-Carbon type -14 watt (R6, R7) 6568Trans

47、former-Interstage audio transformer (T2) -Package of 5 6571Capacitor -10 mfd. (C43. C44) 3376Mount-Fuse mount 6572Reactor-Tone control reactor (L14) 3435Resistor -250 ohms-Carbon type -3 watt (R2)-Pack- age of 5 6574Capacitor pack-Comprising two 10.0nifd.capacitors (C32, C41) 3460Capacitor -1,200 mm

48、fd. (C31) 6578Reactor-Filter reactor (L18) 3526Resistor -2,000 ohms-Carbon type-Y4 watt (R4, R32)- 6797Capacitor -10.0 mid. (C49) Package of 56847Shield-Rectifier socket shield and capacitor 3527Resistor -800 ohms-Carbontype -14 watt(R19)-7062Capacitor-Adjustable capacitor (C14) Package of 5 7439Dru

49、m-Dial drum with set screw and three dial mounting 3528Bracket-Noise suppressor or volume control lam, bracket.nuts 1 PAGE 557-B 280,380 & 380 H R ,pri.1/411 VW VIEW, . 1110.0.0, SNo.tock DESCRIPTION ListStock No. DESCRIPTION List 7484Socket -5 -contact Radiotron socket RECORDING INDICATOR ASSEMBLY 7485Socket -6 -contact Radiotron socket1161Lamp-Neon lamp 7700 Condenser -3 -gang variable tuning condenser (C4, C5, C6.1162Escutcheon-Recording indicator escutcheon CIO. C11, C12, C16, C17. Clir. S2. S3, S4, S5, S