RCA-Victor-Co-Inc-125 电路原理图.pdf

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1、MODELS 125 AND 225 Six -Tube, Two -Band, A. C.Superheterodyne Receivers MODEL 225 BROWN-BLAC It BROWN BLACK CABLE PLUG REP Ise 0 X CE 4 USW114 W FIELD CC COIL L1G. 1290. BLACK Lib 3.5.1% LACK INTERNAL CONNECTIONS OF SPEAKER 240 V. 210V. 125 V. BLACK -RED TR GREEN -BLACK -RED- BLACK 110 P. RED -BLACK

2、 MACH -REDTR. TAPED USE /OR ,BONO. MOTOR ONLY INTERNAL CONNECTIONS OF POWER TRANSF. T RED MODEL 125 ELECTRICAL SPECIFICATIONS 1.105-125 Volts, 50-60 Cycles Voltage and Frequency Ratings 105-125 Volts, 25-60 Cycles 105-125/200-250 Volts, 50-60 Cycles Power Consumption85 Watts Radiotrons and Functions

3、. (1) RCA -6A7 Oscillator and First Detector (2) RCA -6D6 I.F. Amplifier (3) RCA -6D6 I.F. Amplifier (4) RCA -6B7 Detector A.F. Amplifier and A.V.C. (5) RCA -41 Power Output !6) RCA -80 Rectifier Tuning Frequency Ranges .540 KC. -1720 KC. and 5400 KC. -18,000 KC. 1 75 Watts 3 5 Watts kBROWNS BROWN -

4、 BLACK4, 32E. BROWN EYELLOW YELLOW-% G-BLUE CB .-1BLUE Undistorted Output Maximum Output. Universal Transformer Connections 1 or a. c_T a -e o 0 0 4-, Ce C Oi u 00 0 10 rae 9 , Cr, z 5.- I) 0 a:1 0 0 I)a) Alignment Procedure STEP t:TNNE T HIGH SIDE IF TEST 03,.:.TO - TUNE TEST OSC TO - TURN RADIO DI

5、AL I) ADJUST THE FOLLOWING FOR MAX. OUTPUT 1 I-F Grid in serfs with 0.0 1 mrd 460 Kc Qu 1 e t point near 600 Kc BC Band C21_:20 2ndI -F Trans. 2 1st Det.Grid In series with 0.0 lmfd C17015 1st I -F Trans. 3 Antenna in series with 200 mm Pd 1720 Kc 17 20 Kc. BC, Band 10 C 1 Osc.Ant. 4600 Kc 600 KC BC

6、 Band :78L-F Osc. Rock Gang 5Repeat Step 3 6 Antenna in series with 300 ohms 18000 Kc 18 Mc NSW! Band C 11tC2 Osc.Ant. t Use minimum capacity peak. Use maximum capacity peak - ROCK GANG RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A 收音机爱 好者资料库 RadioFans.CN CS 0-450.s 52 l

7、owsr. Nen TRANSF. TAPS ARS mi 2404. TRANSF. ONLY OSC. 41.7 cio 5-20 WED sw. LW. I C 340,1-20 wino.*Kra RECT. TV nes. Or PLOT INTERNAL CONNECTIONS (EMU TRANSFORMER FIELD .1 bob, Cs- 10 SS SW. CIS 80 140 tows. 1 Wo 2000 RS RAN I.F. AMP. 6D6 R22 10000 025 SAO 024 Cil bo-140 NOM. 142 as.K.5 re /6,57 2 V

8、DET-A.F.-A.V.C. fo D6 Isi.Ut Cs 1350 ANN, R11 1,100, 000s 3 us 0 4,A.g RIS Schematic Circuit Diagram I I INTERNAL 4CONNECTIONS V _L.L1Of ELECTROLYTIC 3114 -21)7CAPACITOR WO .1 04111 415 12,000. I coo 1.0025 PA ER Kr, MmFD. OUTPUT 41, c33 0.1 WO. 021 600 000. C2t HIJOIMMI11. RESISTOR BOARD CONNECTION

9、S L44 INTERNAL CONNECTIONS OF LE TRANSFORMERS tl1.1 INTERNAL CONNECTIONS Of ANTENNA COIL INTERNAL CONNECTIONS OF OSCILLATOR COIL 收音机爱 好者资料库 RadioFans.CN PAGE 486-8 125 ANT COIL OSC. SERIES t 4.5V.6.3Y. ISV. 2410ET. 4 345V. 345V. (Measured at 115 -volt A.C. Supply- -Maximum Volume Control-No Signal)

10、*CANNOTBE MEASURED WITH ORDINARY VOLTMETER -Trimmer Locations and kadiotron Socket Voltages to Ground REPLACEMENT PARTS Insist ongenuine factory tested parts, whichare eadily identified and may bepurchased from authorized dealers Stock No. DESCRIPTION ListStock No. 4841 RECEIVER ASSEMBLIES 4885 4880

11、Bracket - Tone controlswitch mounting bracket3597 4427Bracket-Volume control mounting bracket 3796 4358Bracket-Electrolytic capacitor bracket for ca- 7790 pacitor No. 7790 5101 4693Bracket-Electrolytic capacitor bracket for ca- pacitor No. 5101 5087 3861 Capacitor-Adjustable trimmer capacitor (C8).

12、5089 5094Capacitor -50 mmfd. (C5) 4504 3981Capacitor -300 mmfd. (C27) 5104 4811Capacitor -340 mmfd. (C9) 4210Capacitor -600 mmfd. (C28) 5106 5115Capacitor -1350 mmfd. (C31) 4439Capacitor -3400 mmfd. (C12) 5112 4881Capacitor -3400 mmfd. (C13, C26) 4812 5107Capacitor -0.0025 mfd. (C38) 4793Capacitor -

13、0.005 mfd. (C29) 5113 4868Capacitor -0.005 mfd. (C35) 5109 4906Capacitor -0.017 mfd. (C34) 4883Capacitor -0.01 mfd. (C39) 5114 4836Capacitor -0.05 mfd. (C4, C18, C24) 4886 Capacitor -0.05 mfd. (C22) 3602 DESCNEPTION List Capacitor -0.1 mfd. (C7, C19, C25, C33) Capacitor -0.1 mid. (C16) Capacitor -0.

14、25 mfd. (C32) Capacitor -4.0 mfd. (C30) Capacitor -10.0 mfd. (C36) Capacitor pack-Comprising two 8. mfd. and one 4. mfd. sections (C14, C23, C37). . Coil-Antenna coil (L1, L2, L3, L4, C1, C2) Coil-Oscillator coil (L5, L6, L7, L8, C10, C11) Condenser -2 -gang tuning condenser (C3, C6) Lead - Shielded

15、 - Single conductor - From range switch to antenna terminal board. Lead-Shielded-2-conductor-From volume control to third I.F transformer and resistor board Resistor -1000 ohmsCarbon type-Y, watt (R2, R10)-Package of 5 Resistor -2600 ohms-Carbon type-g watt (R4, R6, R9)-Package of 5 Resistor -3900 o

16、hms-Carbon type-/ watt (R8)-Package of 5 Resistor -12,000 ohms-Carbon type-g watt (R15)-Package of 5 Resistor - 15,000 ohms - Carbon type -1 watt (R5) Resistor -60,000 ohms-Carbon type -3,4 watt (R3, R19, R20)-Package of -5 收音机爱 好者资料库 RadioFans.CN PAGE 4 37 - REPLACEMENT PARTS (Continued) Insist on

17、genuine Factory tested parts, which are readily identified and may be purchased From authorized dealers 1258 225 Stock No. DESCRIPTION ListStock No. DESCRIPTION List 4363Indicator-Station selector (pointer) indicator 3118Resistor -100,000 ohms-Carbon type- 4 Console model watt (R1, R7)-Package of 5

18、4340.Lamp-Dial lamp-Package of 5 5027Resistor -150,000 ohms-Carbon type- watt (R17)-Package of 5 3943Screen-Translucent screen for dial light-Pack age of 2 5108Resistor -330,000 ohms-Carbon type -34 watt (R25)-Package of 5 3529Socket-Dial lamp socket REPRODUCER ASSEMBLIES 5110Resistor -680,000 ohms-

19、Carbon type-s watt (R18)-Package of 5 4915 TABLE MODEL Cable -3 -conductor reproducer cable 4783Resistor -1,100,000 ohmsCarbon type- r4 watt (R11)-Package of 5 9587Coil-Field coil, magnet and cone support (L16) 6242Resistor -2 megohms-Carbon type- Y4 watt 9588Cone-Reproducer cone (L15)-Package of 5

20、(R12, R16)-Package of 5 5118Plug -3 -contact plug-Male section for re- 4721Resistor-Tapped-70ne 500, one 10,000 and producer cable two 5000 ohm sections (R21, R22, R23, R24) 5119Plug -3 -contact plug-Female section for re- producer 4521Shield-Antenna, I.F. or oscillator coil shield. 9586Reproducer-C

21、omplete 4893Transformer-Output transformer (T2). . . 3942Shield-First detector and output Radiotron shield REPRODUCER ASSEMBLIES 3782Shield-Second detector Radiotron shield . CONSOLE MODEL 7487Shield-I.F. Radiotron shield 4915Cable -3 -conductor .eproducer cable 9590Coil-Field coil, magnet and cone

22、support 4784Socket -4 -contact Radiotron socket(L16) 4785Socket -6 -contact Radiotron socket 8935Cone-Reproducer cone (L15)-Package of 5 4786Socket -6 -contact Radiotron socket 5118Plug -3 -contact plug-Male section for re- producer cable 4787Socket -7 -contact Radiotron socket 5119Plug -3 -contact

23、plug-Female section for re- 4379Strip - Terminal strip - Engraved ANT- producer cable GND 9589Reproducer-Complete 5100Switch-Range switch (S2, S3, S4, S5, S7). . 4892 Transformer-Output transformer (T2) 5052Switch-Tone control switch (S6) 9512Transformer -Power transformer -105-125 volts -25-40 cycl

24、es MISCELLANEOUS ASSEMBLIES 6755Bezel-Station selector dial escutcheon bezel 9513Transformer-Power transformer -105-125/-Table model 210-240 volts -40-60 cycles 6840Bezel-Station selector dial escutcheon bezel 9511Transformer-Power transformer -105-125 volts -50-60 cycles (T1) -Console model 6707Gla

25、ss-Stationselectordialglass-Table 5102Transformer-Firstintermediatefrequency transformer (L9, L10, C15, C17) model 6614Glass-Station selector dial glass-Console 5103Transformer-Second intermediate frequency transformer (L11, L12, C20, C21) model 4449Knob-Station selector, volume control, band 5105Tr

26、ansformer-Third intermediate frequency transformer (L13, L14, R13) switch or tone control knob-Package of 5. 6708 Ring-Spring retaining ring for dial glass- 4429Volume control (R14, Si)Table model-Package of 5 6615Ring-Spring retaining ring for dial glass- CONDENSER DRIVEConsole model-Package of 5 A

27、SSEMBLIES 4446Screw-Chassis mounting assembly-Com- 4450Dial-Station selector dial-Console model .prising four screws, four spacers, eight cush- ions, four washers and four lockwashers- 4474Dial-Station selector dial-Table model. For table model 4434Drive-Tuning condenser drive assembly- Complete 5184Screw-Chassis mounting assembly-Com- prising one screw, one spacer, two cushions, 4475Indicator-Station selector (pointer) indicator -Table model one washer and one lockwasher-Package of 4-For console model