RCA-Victor-Co-Inc-96BT6 电路原理图.pdf

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1、FREQUENCY RANGES Standard Broadcast (A Band) 540-1,720 kc Short Wave (C Band) 5.8-18 me Four Electric Tuning Positions 550-1,500 kc One station between approximately 550- 950 kc (Button No. 1) One station between approximately 810-1,090 kc (Button No. 2) One station between approximately 750-1,370 k

2、c (Button No. 3) One station between approximately 845-1,500 kc (Button No. 4) Intermediate Frequency 455 kc RCA TUBE COMPLEMENT (1) RCA -6D8 -G First Detector-Oscillator (2) RCA -6S7 -G I -F Amplifier (3) RCA -6T7 -G 2nd Detector, A.V.C., and 1st A.F. (4) RCA -6W7 -G Audio Driver (5) RCA -6L5 -G A

3、Power Output (6) RCA -6L5 -G Power Output Pilot Lamp (1) Mazda No. 47, 6.3 volts, 0.15 amp. POWER SUPPLY RATINGS With CV -9 a -c power supply unit: 100.130/140.160/195.250 volts, 25-60 cycles, 45 watts Model 96BT6 01 POWER -VOLUME CONTROL .t o 0 o ca , , 1O :, D I A L TUNING Location of Controla Mod

4、el 96BK6 TUNING PAGE 1O-C MODELS 96BK6 and 96BT6 Chassis No. RC -392 RC -392 Six -Tube, Electric -Tuning, Two - Band, Battery- Operated, Superheterodyne and MODEL CV -9 A -C Power Unit Electrical and Mechanical Specifications With RS -79B d -c power supply unit: 6.3 volts; total current drain 1.85 a

5、mps. POWER OUTPUT Undistorted With a -c power unit 2.2 watts With d -c power unit 1.7 watts Receiver Maximum 3.5 watts 2.2 watts LOUDSPEAKER Type Permanent Magnet Dynamic Voice Coil Impedance 2.2 ohms at 400 cycles Diameter 98BK6, 8 inches; 9613T6, 6 inches Model 96BT6 Model 96BK6 Height 102 inches

6、39y inches Width 20i inches 26 inches Depth 92 inches 122 inches Net Weight 172 pounds 21 pounds Shipping Weight 46 pounds 81 pounds Chassis Base Dimensions 9 inches x 112 inches x 5 inches Over-all Height of Chassis 72 inches Tuning Drive Ratio 12 to 1 Power Supply Units The receiver chassis has a

7、seven -prong male plug for connection to the power -supply unit. Both a -c and d -c power supply units are available, as listed under Power Supply Ratings. The receivers are shipped with a d -c power unit for use with a 6 -volt supply. If an a -c unit is desired, it must be purchased separately as M

8、odel CV -9. If po receiver chassis is available the a -c unit (CV -9) may be tested for proper operation by connecting a 6,500 -ohm, 10 -watt re- sistor between terminals 2 and 4 on the cable socket, and shorting terminals L and 7. With one voltmeter prod on terminal 2 (ground) the following reading

9、s should be obtained: terminal 3, + 200 volts d.c.; terminal 4, + 200 vols d.c.; terminal 5, -5.9 volts d.c.; ter- minal 6, 6.5 volts a.c. Values should be within 20% with rated supply voltage. Precautionary Lead Dress. - 1. Blue lead from push button switch to gang condenser must be dressed over th

10、e top of the switch. 2. Leads to push button coils must be dressed close to the coils: 9. Red and blue leads to gang condenser must be dressed away from chassis. 4. Blue antenna lead must be dressed in the end of the chassis away from gang leads and coil windings. 5. Bias cell must be installed with

11、 carbon disc connected to chassis. 6. Leads from power switch to connector plug must be dressed away trom other leads. 7. Parts under push button coils must be dressed down away from them. 8. Green lead to first detector grid cap should be pulled out of the chassis as far as possible, and dressed aw

12、ay from the tube envelope. Miscellaneous Service Data T6 center the loudspeaker voice coil, first remove the front dust cover, then loosen the screws holding the spider assembly. Insert three narrow feelers into the air gap, and tighten the spider screws. Remove the feelers and fasten a dust cover i

13、n place with loudspeaker cement. The push button switch and coil assembly may be removed from the chassis by removing two screws from the front apron, one from the rear apron, removing the 6D8 -G grid connector from the grid cap. and disconnecting the seven leads indicated on the Wiring Diagram. RCA

14、 VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 6i1-C 96BK6, 96876, CV9 IF CI C2 SA MAI, 100-330 L3 C3 S.W. 3-30142.0F. L2 B.C. 04 B.Cm -SI 51 L4 Mvr u 6DB-G IST OET. -.2. RI G. %v1- 657 -G I. F. AMP. C18 .IK,. 2 6T7 -G 26 DET.,A.V:C. IV* GRES TO

15、 6w7 -G GRID BIAS CELL 2ND. I.F. TRANS. 7 -(). 63Y)OUTPUT v 6L5 -G RED -BLACK BLUE TO SPEAKER - 6.0V. BRN. BLK. OUTPUT 6L5 -o I. F. BS7-G L-13 T_r 6.Ov. (63V) PRI. ADJ. 455 KC. CATHODE CURRENTS I -6DB-G 5.2 MA. 4 -6WT-G 4.6M. 2-657-G 5.1 MA. S - 6L5 -G 34MA. 3- 6T7 -G 0.24 MA. 6 - 6L5 -G 34MA. BLACK

16、 BR WN TOTAL B CURRENT 22.1 MA. MO2V YELLOW tGAN I I e ,l, L GREEN -Jr o 323 322 szl 320 ISs &N, II_ TER.BD. IIiii 06. OSC SERIES COIL YELLOW BLUE BOTTOM VIEW - REAR OF CHASSIS R -F Wiring Diagram and Socket Voltages Measurements made to chassis unless otherwise indicated, with set tuned to a quiet

17、point and the volume control at minimum. Values should hold within approximately 20% with rated supply voltage. TO 606-G GRID GREEN S S.W. OSE. COIL PROSE. SHUNT COIL + L2 L DIAL LAMP SWITCH 3-3 TO DIAL LAMP I ST DET.1 OSC. B D8 -G (6.30 6.OV.(INW 136V. C S .V C (6BV.) BLACK BLACK TO ANT BLUE Y Y TO

18、 GND. S-2 TONE CONTROL R.F. COIL 1 SWITCH ASSEMBLY MAT BE REMOVED FROM CHASSIS BY DISCONNECTING THE SEVEN LEADS MARKED%. 7-66656 * Note: Values with star (*) are operating voltages in circuits with high series resistance. The actual measured values will be lower, depending on the voltmeter loading.

19、Bracketed voltages ( ) refer to operation with CV -9 a -c power unit. 收音机爱 好者资料库 RadioFans.CN PAGE 612-C 96BK6, 96BT6, CV9 Alignment Cathode -Ray Alignment is the preferable method. Connections for the oscillograph are shown on the chassis drawing. Output Meter Alignment.-If this method is used, con

20、nect the out- put meter across the voice coil, and turn the receiver volume control to maximum. Teat Oscillator.-For all alignment operations, connect the low side of the test oscillator to the receiver chassis, and keep the oscillator output as low as possible to avoid a -v -c action. Calibration M

21、arken-The tuning dial is fastened in the cabinet and can not he used for reference during alignment. Therefore calibration marks corresponding to dial readings of 600 kc, 1,500 kc, and 15.2 me have been stamped in the plate on the front of the chassis as shown in the accompanying drawing. These mark

22、s are used for ref- erence during alignment. Dial Indicator Adjustment.-With the gang condenser in full mesh, the indicator should point to the extreme left (low frequency) mark on the dial scale. For additional details, refer to booklet RCA Victor Receiver Alignment. Procedure C6 -ANT. 1500 Ko C9 -

23、05C. 15.2 M C B LUE ANT. B LACK ONO. ST DET.&05C., SPEAKER CABLE OUTPUT c CS ANT. C34 OSC. 15T I.E TONE CONTROL TRAN SWITCH -52 H1 LO 1T1&T2 I LIS EEC N 455 NC 2 6$16 5 / ZM6AUDIO 24 BANS 4 - 3 LI4 EEC.NOl 456 NC LIT -05C. PUSHBUTTONADJUSTMENTS GOO KC_ Q Q Q L9 4 3 Z. 1 1 600KG g ce., i O L4 -ANT. C

24、33-OSC,.C3-ANT .C2 -ANT 600 etc 1500K C. 15.21VIC 150015C 961376.96 CK6 Tube and Trimmer Locations 2NR OET., A.V.C. & 1 ST AUDIO POWER SUPPLY CONNECTON Connect the High Tune Test Press Turn Radio Adjust for Maximum Steps Side of Test Oscillator to: Oscillator To: Push Button: Dial to: Peak Output: 1

25、 BS7-G I -F grid cap in series with .01 mfd. 455 kc B.C. (No. 5) No Station Point between 550-750 kc. L13 and L14 (2nd I -F Trans.) 2 6D8 -G Det. grid cap in series with .01 mfd. 455 kc B.C. (No.5) L11 and L12 (1st I -F Trans.) 3 Antenna Lead (blue) in series with 200 mmfd. 1,500 kc No. 4 L20 -L28 (

26、No. 4 Push Button Adj.) C2 (ant.) 4 Antenna Lead (blue) in senos with 200 mmfd. 600 kc No. 1 L23 -L29 * (No. 1 Push Button Adj.) L9 (osc.) 5 Repeat steps S and 4 until maximum signal is obtained. G Unscrew C9 (ose.) to minimum capacity. 7 Antenna Lea,. (blue) in series with 200 mmfd. 800 kc B.C. (No

27、. 5) 600 kc Calibration Mark L17 (osc.) 13t L4 (ant.) 8 Antenna Lead (blue) in series with 200 mmfd. 1,500 kc B.C. (No. 5) 1,500 kc Calibration Mark CSS (osc.) C6 (ant.) 9 Repeat steps 7 and 8 until maximum signal is obtained. 10 Antenna Lead (blue) in series with 300 ohms 15.2 mc S.W. (No. 6) 15.2

28、me Calibration Mark C9 (osc.) t C3 (ant.) tt 11 Antenna Lead (blue) in series with 200 mmfd. 1,500 kc B.C. (No.5) 1,500 kc Calibration Mark C33 (osc.) 12 Follow the Adjustments for Electric Tuning. Adjust L23 -L29 (No. 1 push button adjustment) and L9 at the same time, rocking in for maximum signal.

29、 * Turn L17 adjusting screw all the way out, then turn in slowly until a peak is reached. If two peaks can be obtained the lower ,uductance setting (screw out) should be used. t Use minimum capacity peak if two peaks can be obtained. A weaker signal (image) should be received about one quarter inch

30、to the left on the dial plate. tt Use maximum capacity peak if two peaks can he obtained, rock in for maximum signal. Note: The oscillator tracks 455 kc above the signal on all bands. After the receiver has been installed and the antenna connected, it is advisable to make a slight change in the adju

31、stment of the antenna trimmer, C2. In most cases it is desirable to make this adjustment PI LLES 31113,NOCATCRI 32267 ,_4t I 60dC i52M 70034 ALIGNMENT MAR3S DwwAT rHo er rtcAoTrcc U1an wPAIMxT E LINE. Dial Drive Hookup and Alignment Marks DRUM 52266 EPRNM 52451 CORD 72265 -7NAET 32266 21 TURNS APPIb

32、1. while receiving a station on No. 4 push button. However, if a sta- tion received on one of the other buttons is especially weak, it may he advisable to Lnake the adjustment while receiving the weak station on that particular button. Adjustment for Electric Tuning These models have six push button

33、s. The right-hand button con nects the receiver for dial tuning on the Short-wave band, the next button connects for dial tuning on the Standard -broadcast band, and the other four buttons are for electric tuning of. four different stations in the standard -broadcast band. Each station button con- n

34、ects separate oscillator and antenna coils which are tuned by ganged magnetite cores, and may be adjusted for the desired stations. Use a small screw -driver or alignment tool such as RCA Stock No. 31031. Allow at least five minutes warm-up period before making adjust- ments. Use the regular antenna

35、 for all adjustments. The procedure is as follows: 1. Make a list of the four desired stations, arranged in order from low to high frequencies. 2. Push in the broadcast dial -tuning button (second from right), and manually tune in the first station on the list. 3. Push in station button No. 1 (left-

36、hand) and adjust No. 1 push button adjustment to receive this station. Turn the adjusting screw all the way in, to lowest frequency, and then unscrew slowly until the station is received. 4. Adjust for each of the remaining three stations in the same manner. (Clockwise adjustment of the screw tunes

37、the circuits to lower frequencies.) 5. After installation, and with antenna properly connected, re- adjust C2 as outlined in note under Alignment Procedure. 收音机爱 好者资料库 RadioFans.CN PAGE 6i3 -C Insist 96BK6, 96816, REPLACEMENT PARTS on genuine factory -tested parts, which are readily identified and m

38、ay be purchased from authorized dealers. CY9 STOoCK DESCRIPTION STOCK ON K DESCRIPTION ASSEMBLIES 32368 Transformer -Driver and output transformer pack (Ti, T2) 32259 Capacitor -S -section trimmer bank 2-10, 3-30, 100-330 mmfd. (C33, C3, C2) 14261 Transformer -First I.F. transformer (L11, L12, C17,

39、C18) 12629 Capacitor -56 mmfd. (C18) 14308 Transformer -Second I.F. transformer (L13, 12723 Capacitor -56 mmfd. (C1, C31) L14, C12, C19, C20, R20) 30406 Capacitor -100 mmfd. (C4) 32367 Volume Control and Power Switch (R8, Si). 14262 Capacitor -110 mmfd. (CI7) 12404 Capacitor -120 mmfd. (C19, C20) SP

40、EAKER ASSEMBLIES 32370 Capacitor -120 mmfd. (C22) Model 96BT6 (Speaker 84307-3) 14712 Capacitor -180 mmfd. (C12) 30433 Capacitor -470 mmfd. (C28) 32326 Cone -Speaker cone and voice coil. 32269 Capacitor -520 mmfd. (C30) 5118 Plug -3 -prong male plug 12835 Capacitor -1,000 mmfd. (C11) 32325 Speaker -

41、Complete . 4881 Capacitor -3,300 mmfd. (C29) 30303 Capacitor -.0035 mfd. (C14) SPEAKER ASSEMBLIES 4838 Capacitor -.005 mfd. (C21) Model 96BK6 (Speaker 84477-2) 14393 Capacitor -.01 mfd. (C13) 4886 Capacitor -.05 mfd. (CS, C10) 32328 Cone -Speaker cone and voice coil 4839 Capacitor -.1 mfd. (C15, C39

42、) 5118 Plug -3 -prong male plug 30965 Capacitor -.25 mfd. (C7) 32327 Speaker -Complete 12741 Capacitor -.5 mfd. (C16) 31581 Cell -1 volt bias cell VIBRATOR POWER UNIT ASSEMBLIES 32257 Coil -Push button osc. shunt coil (L8, L9) 32254 Coil -Broadcast oscillator coil (L17) (RS -79B) 32258 Coil -Antenna

43、 coil (L1, L2, L3, L4) 32366 Coil -C band oscillator :oil (L15, L16) 13894 Capacitor -390 mmfd. (C40) 32256 Coil -Push button osc. series coil 4937 Capacitor -.01 mfd. (C27) 32253 Coil -Push button antenna and oscillator coil 12484 Capacitor -.25 mfd. (C25) (L20, L26) 30867 Capacitor -0.5 mfd. (C32,

44、 C38) 32252 Coil -Push button anterna and oscillator coil 32152 Capacitor -Capacitor - 15-15 mfd. Electrolytic (L21, L27) (C23, C24) 32251 Coil -Push button antenna and oscillator coil 14289 Clip -Battery clip for cable (L22, L28) 31794 Coil -Choke coil (L18) 32250 Coil -Push button antenna and osci

45、llator coil 6516 Connector -Fuse connector (L23, L29) 5140 Fuse -5 ampere 32365 Condenser -2 -gang variable condenser (C5, C6, 14281 Resistor -68 ohms, 4 watt (R11) C9, C34) 14439 Resistor -100 ohms, 4 watt (R13) 32369 Contact -Dial lamp spring contact (S3) 3153 Resistor -1,500 ohms, 1 watt (R14) 12

46、006 Core -Variable core and stud for I.F. trans- 30734 Resistor -5,600 ohms, 4 watt (R19) formers 4786 Socket -6 -prong socket for plug-in vibrator unit 12800 Core -Variable core and stud for antenna coil 14409 Socket -7 -contact female socket for vibrator cable 32268 Cord -Drive cord 32371 Transfor

47、mer -Vibrator transformer (T3, L19, 32266 Drum -Variable condenser drive drum C26) 31580 Holder -Bias cell holder 14309 Vibrator -(L24) 32267 Indicator -Dial scale pointer 31480 Lamp -Dial lamp A. C. POWER UNIT ASSEMBLIES 14404 Plug -7 -prong plug -mates with socket on sup- ply cable Model CV -9 313

48、73 Pulley -Drive cord pulley 32223 Capacitor -15 mfd. (C37) 30546 Resistor -470 ohms, 4 watt (R12) 32222 Capacitor -2 -sections 15 mfd. each (C35, C36) 13714 Resistor -5,600 ohms, 4 watt (R5) 14409 Plug -7 -contact female plug for power out cable 14284 Resistor -22,000 ohms, 1/10 watt (R20) 30545 Resistor -180 ohms, 4 watt (R17) 12454 Resistor -33,000 ohms, 4 watt (R4, R15). 4687 Resistor -1,000 ohms, 4 watt (R18) 12199 Resistor -270,000 ohms,