RCA-Victor-Co-Inc-96T7 电路原理图.pdf

PAGE 614-C MODELS 96E2, 96K5, 96K6, 96T7, 97K2, and 97T2 - Chassis No. RC -351 L RC -351 L RC -351 L RC -351 L RC -351K RC -351K Six- and Seven -Tube, Three -Band, Electric -Tuning, A -C Superheterodyne Receivers Model 96E2 6 Tubes, 8 -in. Speaker FREQUENCY RANGES Model 96T7 6 Tubes, 6 -in. Speaker Electrical Specifications Model 97T2 7 Tubes, 6 -in. Speaker Medium Wave (B) 2.3-7.0 me Standard Broadcast (A) 540-1,720 kc Short Wave (C) 7.0.22 me Six Electric Tuning Positions 550-1,500 kc 2 stations between approximately 550- 950 kc 2 stations between approximately 690.1,225 kc 2 stations between approximately 890-1,500 kc (4) RCA -6F5 Audio Voltage Amplifier (1) RCA -6K8 First Detector-Oscillator (5) RCA -6F6 -G Audio Power Amplifier (2) RCA -6K7 Intermediate -Frequency Amplifier (6) RCA -5Y3 -G Full -Wave Rectifier (3) RCA -6H6 Second Detector and A.V.C. (7) RCA -6U5 (Models 97K2 and 97T2). Tuning Tube Pilot Lamps (1 on Models 96K5, 96K6, 96E2, 96T7) (2 on Models 97K2, 97T2) Mazda No. 47, 6.3 volts, .15 amp. POWER SUPPLY RATING Rating A 105-125 volts, 50-60 cycles, 80 watts Rating B 105-125 volts, 25-60 cycles, 80 watts Rating C 100.130/140.160/195.250 volts, 40-60 cycles, 80 watts POWER OUTPUT 96T7, 97T2 96E2, 96K5, 96K6, 97K2 Undistorted 2.0 watts 2.5 watts Maximum 4.0 watts 4.5 watts LOUDSPEAKER Type Electrodynamic Voice -coil impedance 84308.1, 84308.4, RL63H3, RL70H1. 2.2 ohms, RL79.1 3.4 ohms at 400 cycles TUBE COMPLEMENT 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 IuulmlluulunluuluuluuluuluuluuluuhulluuhwlmilnnlnnllmlllnlnnlniduulmdunluulurlluuluuluulmrluulwllrwLrrr(uuluu i766d SHORT C WAVE EASINM NONOONO - PIRO - DOME ISLOL- IO11O-NTTYIMON LONDON- SOERfl MOM -LONDON ISIS. - NIISOM MEMNPINRI LONDON -SCHONT- MADRID LONDON - DOM - I0.015 MIN- INTSVON M. TODE -PARIS LONDON - M. TOD 40M no - DauM - Nnw. 31M IILASDN 23M nA0. AMTR 19M run 16M INnnI 13M SOMIT 9 10 12 14 16 18 20 22 Mc C STANDARD BROADCAST DIKE A 550 600 700 800 1000 1200 1400 1700 RC A 2.0 B MEDIUM WAV E 2.2 2.5 3.0 4.0 5.0 6.0 MC 120M IRONCAL MOADCASI AMHKAN POLK AIRCRAFT 90M IDONCAI MOADCASI AMTR DNADA- 60M AIRCRAFT 69MaMaNNAn-I00ON10 ROSS IROIKILL MEKG OT-CIDC.A00- N TO MOADCAST NAYANA - NOUN - MTIYyION B InninnlnninnlmynnlnnpnrinnimilnnPnrrmint mitt npnrinnlnnlnnpnrinninnlnrgnnlnninnlnninnlnninrrinninnlmrpnrl 180 170 160 150 140 130 120 110 100 90 60 70 60 50 40 30 20 10 0 Reduced Reproduction of Receiver Dial, and Corresponding 0-180 Calibration Scales 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 PAGE 615-C 96E2, 96K5, 96K6, 9677, 97K2, 9772 Model 96K5 6 Tubes, 12 -in. Speaker PULLEY SCGTO KNOB SHRFT j PULLEY DEUM DRIVE CORD IN REAR GROOVE OF- DRUM DRUM SHOWN WITH GANG RT MRXIMLIM CRPRCITY Model 96K6 6 Tubes, 12 -in. Speaker VOLTAGES 3HoIJLD HOLD WITHIN t 20% WITH 117 V. AC. SUPPLY. *MEASURED WITH CHANALYST OR VOLTOHMYST. TONE CONTR.-RI I DUMMY /TERM. VOL. CONTR. R6 TERM. BRD. OSCILLOORAPH CONNECTIONS- VERTICALHITO THIS TERM. VERTICAL -0 TO CHASSIS 6F5 AUDIO 27SV. R 6F6 -G OUTPUT IT 4V. z60V. 6H6 2DET AV .C. 544 545 ANT. TRIMMER CATHODE CURRENTS 6KB 12.OMA 6147 10.7MA 6F5 O-4MA 6F6 -O 41.OMA TOTAL RECTIFIED Ili 70.OMA 6K7 I. F. USED ONLY IN RC -351M 1sT I.F. TRANS. I GREEN TO ELECT. - TUNING LAMP BLACK BROWN GREEN TO 6148 GRI O TER M. BRD STATION SELECTOR -0I . SWITCH 54z-551 p K 155 536 535 534 533 532 531 154 fl VICTROLA JACK TO REAR SECTION OF Y GANG -CAS t0 C19 -275V. ,COMMON NEG. C16 - C18 17.4V. 566V. C41 -45V. ELECTROLYTIC CAPACITOR LI L2.L3 1. L43 L3 BLACK ANT. COI L POWER TRANSE TI R -F Wiring Diagram and Socket Voltages TO ANT BOARD. RED- BI K 1.81.8 366V. 0 LB RANGE SWITCH 5Y3 -G R ECT. BOTAS O RC-3SIR.L L 1-1 BOTTOM VIEW- REAR OF CHASSIS 收音机爱 好者资料库 RadioFans.CN PAGE 616-C 96E2, 96K5, 961(6, 96T7, 971(2, 97T2 Cathode -Ray Alignment is the preferable method. Connec- tions for the oscillograph are shown in the chassis drawing. Output Meter Alignment.-If this method is used, connect the meter across the voice coil, and turn the receiver volume control to maximum. Test-Oscillator.-For all alignment operations, connect the low side of the test -oscillator to the receiver chassis, and keep the output as low as possible to avoid a -v -c action. Calibration Scale on Indicator -Drive -Cord Drum. - The tuning dial is fastened in the cabinet and cannot be used for reference during alignment; therefore, a calibration scale is attached to the rear of the drum which is mounted on the front shaft of the gang condenser. The setting of the gang condenser is read on this scale, which is calibrated in degrees. The correct setting of the gang in degrees, for each align- ment frequency, is given in the alignment table. As the first step in r -f alignment, check the position of the drum. The 180 mark on the drum scale must be vertical, and directly over the center of the gang -condenser shaft when the plates are fully meshed. The distance from the front of the chassis to the drum must not exceed 3/g -inch. The drum is held to the shaft by means of two set screws, which must be tightened securely when the drum is in the correct position. Pointer for Calibration Scale.-Improvise a pointer for the calibration scale by fastening a piece of wire to the gang - condenser frame, and bend the wire so that it points to the 180 mark on the calibration scale when the plates are fully meshed. ALIGNMENT PROCEDURE Ca 1500 KC CeI 2omc C23 6.O M C C2S 1500KC C29 ANT. C 21, 050. LT SEE ADJ 455 KC 1 IST. DET. B. oSc. OSCILLATOR CORO -06 05 04 03 05 0 - ANT NNATRINMIRR-ve 0 (p 2KO DET. B A.V.0 650-950KC 690-1225 KC 890-1500 KC AUDIO OUTPUT 6F 6-6 5 IN 9742, 9712 ONLY TUN INGN TUBE - LI3 SEC. ADJ. 455 KC ANTENNA R ECT. 5Y3 -G I. F. v Cle,c19 C41,C16 VICTROUA Tube and Trimmer Locations JACK Dial -Indicator Adjustment.-After fastening the chassis in the cabinet, attach the dial indicator to the drive cable with indicator at the left-hand end mark, and gang condenser fully meshed. For additional details, refer to booklet RCA Victor Re- ceiver Alignment. (35/ K,L) GROUND Steps Connect the high side of test-osc. to- Tune test- osc. to- Turn radio dial to- Adjust the following for max. peak output 1 6K7 I -F grid cap, in series with .01 mfd. 455 kc A band, Quiet Point between 550-750 kc L12 and L13 (2nd I -F Trans.) 2 6K8 det. grid cap, in series with .01 mfd. 455 kc L10 and L11 (1st I -F Trans.) 3 Antenna Terminal, in series with 200 mmf. 604 kc 600 kc (150.5) A band L9 4 1,b00 kc 1,500 kc (28) A band C25 (osc.) C30 (ant.) 5 Repeat steps 3 and 4. 6 Antenna Terminal, in series with 400 ohms 6 me 6 me (26.5) B band C23 (osc.)* 20 me 20 me (22) C band C21 (osc.)* 8 Follow Adjustments for Electric Tuning. * Use minimum capacity peak if two peaks can be obtained, and rock gang condenser slightly while adjusting C23 and C21. Note.-Oscillator tracks 455 kc above signal oil all bands. ADJUSTMENTS FOR ELECTRIC TUNING These models have eight push buttons. The left-hand button is a Victrola switch. The right-hand button connects the gang condenser for manual tuning. The other six buttons are for electric tuning of six different stations in the standard - broadcast range. The station buttons connect to separate magnetite -core oscillator coils and separate antenna trimmers which must be adjusted for the desired stations. Use an in- i_- I N 97/42,9772 ONLY - TUNING TUBE VOLUME TONE TONt nFr LOw0 P OWER -TONE -VOLUME CONTROL 111111011111111 POSTI BUTTON CONTROLS MEDIUM RROMMSTI 5410r WAVE RANGE TUNING RANGE TUNING CONTROL Location of Controls The left-hand push button is a Victrola-Attachment switch. The .right-hand push button is for dial tuning. sulated screwdriver or alignment tool such as RCA Stock No. 31031. Allow at least five minutes warm-up period before making adjustments. The procedure is as follows: 1. Make a list of the desired six stations, arranged in order from low to high frequencies. 2. Push in the dial -tuning button, and manually tune in the first station on the list. 3. Push in station button No. 1 (second from left) and adjust No. I oscillator core (L37) to receive this sta- tion. Screw the core all the way in, to lowest frequency, and then unscrew slowly until station is received. 4. Adjust No. 1 antenna trimmer (C36) for maximum output on this station. Clockwise adjustment of cores and trimmers tunes the circuits to lower frequencies. 5. Adjust for each of the remaining five stations in the same manner. 6. Make a final careful adjustment of the oscillator cores and atenna_ trimmers. 收音机爱 好者资料库 RadioFans.CN PACE 647-C 96E2, 96K5, 96K6, 96T7, 97K2, 5712 01 a -114o m 1 U K 2 Z Y .Di OFi Q,V V g aW 0,- f W Wk gr PAGE 68-C 96E2, 960, 96K6, 9677, 97K2, 9772 REPLACEMENT PARTS Insist on genuine factory -tested parts, which are readily identified and may be purchased from authorized dealers. ST OoCK DESCRIPTION STOCK DESCRIPTION CHASSIS ASSEMBLIES 32669 Switch -Range switch (S1, S2) 31370 Switch -Station selector push-button switch (S4, 14517 Board -Antenna ground terminal board S5, S31, S32, S33, S34, S35, S36, S37, S38, 30752 Bracket -Magic Eye bracket and holder -Models S39, S40, S41, S42, S43, S44, S45) 97T2 and 97K2 14376 Transformer -First i -f transformer (L10, L11, 32670 Bracket -Dial color plate and lamp brackets C5, C8) 32684 Cable -Indicator drive cable 14283 Transformer -Second i -f transformer (L12, L13, 30786 Cap -Magic Eye cap C7, C8, C37, R4, Rb) 12110 Cap -Tube shield cap 31445 Transformer -Power transformer 100-120 volts, 31400 Capacitor -Triple adjustable trimmer two sections 25-60 cycle (T1) 2-10 mmfd., one section 3-30 mmfd. (C21, C23, C25) 31380 Transformer -Power transformer 100-120 volts, 50-80 cycle (T1) 12722 Capacitor -18 mmfd. (C1) 31446 Transformer -Power transformer 100-130, 140- 32486 Capacitor -Antenna trimmer capacitor bank. 180, 200-250 volts, 50-80 cycle (Ti) (C31, C32, C33, C34, C35, C36) 12948 Capacitor -33 mmfd.SPEAKER (C3) ASSEMBLIES (84308-4) 12720 Capacitor -100 mmfd. (C42) ModelASSEMBLIES 14282 Capacitor -109 mmfd. (C5, C6) 32918 Cone and Voice Coil assembly complete with 12724 Capacitor -120 mmfd. (C12) metal housing 12494 147f2 Capacitor -120 mmfd. (C7, CB) Capacitor -180 mmfd. (C37) 32919 Field Coil Complete 30433 Capacitor -470 mmfd. (C2) 32920 Output Transformer 32492 Capacitor -530 mmfd, (C24) 31302 Plug -4 -contact male for speaker 31435 Capacitor -750 mmfd. (C28) SPEAKER ASSEMBLIES (84308-1) 31403 Capacitor -3300 mmfd. (C22) Models 98T7 and 97T2 31405 Capacitor -6000 mmfd. (C27) 5107 Capacitor -.0Q25 mid. (C13) 31443 Cone -Speaker cone and voice coil (L14) 4838 Capacitor -.005 mid. (C14, C17) 31442 Speaker -Complete 14393 Capacitor -.01 mfd. (C10) 31444 Transformer -Output transformer (T2) 4839 11315 Capacitor -0.1 mfd. (C38, C39) Capacitor -.015 mfd. (C11) SPEAKER ASSEMBLIES (RL -79.1) 4886 Capacitor -.05 mfd. (C9) Model 97T2 32485 Capacitor -Comprising two 10 mfd., one 20 32907 Cap -Cone center dust cap mfd., and one 5 mfd. sections (C18, C18, C19, 32908 Coil -Hum neutralizing cod C41) 33077 Coil -Speaker field coil 31382 Clip -Oscillator coil and core mounting clip. 32934 Cone -Cone and voice coil assembly 32493 Coil -Antenna coil -A, B, and C bands (L1, 31302 Plug -4 -prong male speaker plug L2, L3, L43) 33078 Speaker -Speaker complete 31951 Coil -Oscillator coil -A, B, and C bands (L4, L5, L6, L7, L8, 1,9) 32905 Transformer -Output transformer (T2) 31383 Coil -Oscillator coil -A band (L41, L42). SPEAKER ASSEMBLIES (RL -6314-3) 32487 Coil -Oscillator coil -A band (L39, L40) . Model 98E2 31385 Coil -Oscillator coil -A band (L37, L38). 31389 Condenser -2 -gang variable tuning condenser 31825 Cap -Speaker cone center dust cap (C28, C29, C30) 11469 Coil -Hum neutralizing coil (L17) 32688 Control -Volume control, tone control, and on- 12012 Coil -Speaker field coil (L18) off switch (R8, R13, S3) 31310 Cone -Speaker cone and voice coil (L18) 32634 Cord -Indicator pointer and variable condenser 31302 Plug -4 -contact male plug for speaker drum drive cord 31824 Speaker complete 30905 Core -Adjustable core for i -f trans- former 14355 Transformer -Output transformer (T2) 31386 Core -Adjustable core and stud for oscillator coil Stock Nos. 31383 and 31385 SPEAKER ASSEMBLIES (RL -70H-1) Models 96K5 and 97K2 12800 Core -Adjustable core and stud for oscillator 31825 Cap -Dust cap for cone center coil Stock No. 32487 12012 Cal -Field coil (L16) 31372 Drum -Variable condenser drive cord drum and 11469 Coil -Hum neutralizing coil (L16) calibrator dial 31275 Cone -Speaker cone and voice coil (L14) 32552 Indicator -Dial pointer -and clip 31302 Plug -4 -contact male plug 11891 Lamp -Dial or Electric Tuning indicator lamp. 31592 Speaker -Speaker complete 5040 Plug -4 -contact female plug for speaker cable. 14358 Screw -Screw, washer, and lockwasher to hold 31373 Pulley -Indicator drive cord pulley core in yoke 14671 Resistor -33 ohms, i watt (R11) 14355 Transformer -Output transformer (T2) 31388 Resistor -390 ohms, 1 watt (R12) 14357 Washer -Spring washer to hold field coil 31389 Resistor -12,000 ohms, wire wound, 5 watts (R14) MISCELLANEOUS ASSEMBLIES 30151 Resistor -18,000 ohms, 1 watt (R17) 14284 Resistor -22,000 ohms, 1/10 watt (R4) 31397 Button -Push button 12738 Resistor -27,000 ohms, i watt (R7) 31456 Cover -8 -protective covers for push button 12454 Resistor -33,000 ohms, watt (R2) markers 14580 Resistor -100,000 ohms, i watt (R10) 32873 Dial -Dial scale and crystal (glass) 11398 Resistor -220,000 ohms, 1/10 watt (R5) 32872 Escutcheon -Dial escutcheon and dial -less but - 12199 Resistor -270,000 ohms, watt (R8) tons -Models 96K6, 96E2, and 96T7 12285 Resistor -470,000 ohms, * watt (R9) 32874 Escutcheon -Dial escutcheon and dial -less but - 12013 Resistor -1 meg., 1/10 watt (R16) Models tons -Models 97K2 and 97T2 97T2 and 97K2 31355 Knob -Range switch knob 13730 Resistor -1 meg., * watt (Rl) 14359 Knob -Station selector knob 12679 Resistor -2.2 meg., j watt (R3) 31391 Knob -Tone control knob 14343 Retainer -Retaining spring for station selector 30773 Knob -Volume control knob knob shaft 31689 Marker -1 set station call letter markers 14887 Retainer -Drive cord pulley retainer 31458 Marker -Dial Tuning push button marker. 4869 Screw -No. 8-32 square head set screw for drum 31457 Marker-Victrola push button marker Stock No. 31372 11210 Screw -Chassis mounting screws, washers and 32871 Shaft -Station selector knob shaft and pulley lockwashers. Models 96K5, 97K2 and 96E2 31199 Shield -Electric tuning lamp shield (3 required) 31384 Socket -D