RCA-Victor-Co-Inc-95XLW 电路原理图.pdf

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1、PAGE 608-C MODEL 95XLW Chassis Base Over-all Chassis Height Weight Chassis No. RC -345F Five -Tube, Two -Band, AC -DC, T -R -F Receiver FREQUENCY RANGES Long Wave (X) Standard Broadcast (A) Electrical and Mechanical Specifications TUBE COMPLEMENT (1) RCA -6K7 R -F Amp. (2) RCA -6J7 Detector (3) RCA

2、-25L6 Output (4) RCA -2526-G Rectifier (5) RCA-BK55B Ballast Tube Dial Lamp. Mazda No. 40, 6.3 volts, .15 amps. POWER SUPPLY RATINGS 95 X LW A -C Rating 105.125 volts, 25-60 cycles, 50 watts D -C Rating 105-125 volts, 50 watts 150-360 kc 530-1,500 kc LOUDSPEAKER Type 5 -inch electrodynamic Voice -Co

3、il Impedance 3 ohms at 400 cycles POWER OUTPUT (123 volt. 60 cycle supply) Undistorted 1.0 watt Maximum 1.5 watts Height Cabinet Dimensions 71 in. 2$ in. Width Depth 101 in. 51 in. 9 in. 41 in. 61 in. 51 lbs. (Net), 7i lbs. (Shipping) Replacement Parts Insist on genuine factory -tested parts, which

4、are readily identified and may be purchased from authorized dealen. STOCK No. DESCRIPTION STOCK DESCRIPTION SPEAKER ASSEMBLIES 4286 Ferrule-Ferrule for dial lamp connector (84202-3) 4340 Lamp-Pilot lamp 31193 Lead-Antenna lead 31202 Cone-Speaker cone (L5) 31196 Pointer-Station selector indicator poi

5、nter 31201 Speaker-Speaker complete 31198 Resistor-Ballast resistor tube (R7, R8) 31203 Transformer-Output transformer (T1) 30880 Resistor -150 ohms, 4 watt (R6) 13045 Resistor -18,000 ohms, 4 watt (R2) CHASSIS ASSEMBLIES (RC -345F) 12285 Resistor -470,000 ohms, 4 watt (R4) 31198 Ballast-Ballast res

6、istor tube (R7, R8) 13730 Resistor -1 megohm, 4 watt (R5, R9) 4287 13002 Bod y-Connector body for dial lamp connector. Capacitor -12 mmfd. (C16, C18) 12679 31197 31251 Resistor -2.2 megohms, 4 watt (R3) Shaft-Indicator pointer shaft and pulley Socket -8 -contact tube socket 13003 Capacitor -180 mmfd

7、. (C17) 14171 Socket-Lamp socket assembly 30883 Capacitor $00 mmfd. (C9) 4284 Spring-Spring for dial lamp connector 14393 6198 Capacitor-.01 mfd., 300 V. (C1, C8, C10). Capacitor-.035 mfd. (C11) 32210 31198 Switch-Range switch (S2) Tube-Ballast resistor tube (R7, RB) 30899 Capacitor-.01 mfd., 200 V.

8、 (C4) 31194 Volume Control-Vclume control and power 30882 12484 Cpacitor-.05 mfd. 200 V. (C15) Capacitor-.25 mfd., 400 V. (C12) 4285 switch (RI, S1) Washer-Insulating washer for dial lamp con - 30965 31323 Capacitor -0.25 mfd., 350 V. (C7) Capacitor -16 mfd., 150 V. (C14) nector 31584 32213 Capacito

9、r -40 mfd., 150 V. (C13) Coil-Antenna coil (LI, L2, C19) MISCELLANEOUS ASSEMBLIES 32214 Coil-R.F. coil (LS, L4) 31205 Crystal-Station selector dial crystal 31195 Condenser -2 -gang variable tuning condenser 31204 Knob-Range switch knob (C2, C3, C5, C6) 30885 Knob-Station selector or volume control k

10、nob 14088 Cord-Power cord 30870 Plug contact male plug for motor leads 32634 Cord-Variable condenser drive cord 31079 -2 Screw-Chassis mounting screws and washers 32211 Dial-Station selector dial scale and plate as- sembly 30900 Spring-Retaining spring for knob Stock No. 31204 Alignment Procedure CA

11、UTION: The chassis is connected to one side of the power line. Avoid contact of chassis or parts to external ground when servicing. Turn pointer, while holding tuning knob, so that the pointer is horizontal and pointing to, low frequency end when the gang con- denser is at maximum. Reel up the anten

12、na wire, and connect the high side of test - oscillator through an, 80 mmfd. capacitor to the antenna terminal on the antenna transformer. Connect low side of oscillator to receiver chassis through a 0.1 capacitor. Keep antenna roll and lead clear of chassis during alignment. To align A band, turn r

13、ange switch to A band (clockwise) position, turn receiver dial to 1,500 kc, tune test -oscillator to 1,500 kc, connect an output meter across the voice coil, and turn volume control to maximum. Adjust the two trimmers (C3 and C6) on side of gang condenser for maximum output, using lowest possible ou

14、tput from test -oscillator. To align X band, turn range switch to X band (counter- clockwise) position, tune test -oscillator to 360 kc, and adjust C19 for maximum output. The gang should be rocked during X band alignment. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收

15、音机爱 好者资料库 RadioFans.CN i I/ C1 .01 Jr MED. 1 Li too_ 018 te MME. C2 11 2 -400 2,MMF. 5_L C19 2-15- MMF L2 1on + C3 3 T_3-15 _ = MME VOL.CONTR. R1 - - -1 4 so,000 - TOTAL, 6 K7 R. F. Sur, 3 O L3I 1 100 C17 o 150 - MMF. C4 0.1 MFD, A 51 (ON VOL. CONrR. C12 0.25 - MFD. X52 6J7-DET. BOTTOM VIEW OF TUBE

16、SOCKETS. 2 411. C5 C6 12-400 3-15 MMF. MME L4 20n Z R9 1 MEG. SUP YC7 0.25 MED. / / C15 Lt .05 MFD I -L R2. 18,000n R3 2.2 MEG, I/22 C9 C8 300 .01 MME MF El _ R6 C10 1so .01 MFG. R4 47O000 25L6-6 OUT PUT R5 1MEG. 71 _L / f io a C11 .035 MED. X IIA 1.- RANGE SELECTOR SHOWN IN i LOUSITERCLOCKWISE % BA

17、NC) POSITION. BLACK 00.0 YELLOW L6 F I E LD - C13 Iq = MED. -L. C14 16 = MFD- PAGE 609-C 95XLw L5 1/ 1 HUM NEUT COIL L7 OO R8 R7 +scoLO 170 40A NOT 0 DIAL LAMP DET. 2526G RECT. 4 Tube and Trimmer Locations * Note: Values with (A) are operat- ing voltages. Values not starred are ac- tual measured vol

18、tages. Measurements made to chassis unless otherwise indicated. Measurements made with set tuned to quiet point, volume control at min- imum, using 1,000 -ohm -per -volt meter, having ranges of 10, 50, and 250 volts. (Use nearest range above the specified measured voltage.) Values should hold within

19、 approxi- mately 20% for 117 -volt 60 -cycle a -c supply. On d -c, voltages are ap- proximately 10% lower, except heaters, which remain the same. 1. Dress power cord away trom 2. Dress all leads away from antenna coil. 3. Green lead from gang to detector coil must be dressed under switch shaft and o

20、ver detector coil (looking from bottom of chassis). Schematic Circuit Diagram BK55B BALLAST TUBE + nt RI 7 yyppL.CONTROL 51 ; LI,POWEER SW. CATHODE CURRENTS (I) o.14 A.(VOL.CONTR.MM.) IS O M. A-( VOL. COnT.14A1.) It) 0.17 M A IS_ 47.0 MA TOTAL RECTIFIED -S 59 NI A nv AC 25 LG G (sOv)E E OUTPUTV 0100

21、 637 VET/ 56 , 6 (6sfi/ .: Ev. I iSv Ac C 1 25Z66 RECT. LEST AL -j BK 25B BALLAST L-51V.AL-J J W ITCH Pro .K LAC LuE GREEK TO AT. COIL fU C COMB SER ANT DET 105V. 6K7 RF (3ti1 K.CTR M111 14.1v. wL.COnTE.M0, BOTTOM VIEW- REAR OF CHASSIS Precautionary Lead Dress yellow lead to volume control. 4. Yello

22、w lead from volume control to 6K7 cathode must be dressed down against rear apron of chassis. 5. Green lead from switch to volume control must be dressed away from all other wires. 6. All leads to detector coil, except green lead in No. 3 (above) must be dressed down against the chassis base. 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN