RCA-Victor-Co-Inc-96K 电路原理图.pdf

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1、PAGE 6i9-C MODELS 96K 96T2 and 97K * CHASSIS No. RC -351 RC -351F 6 AND 7 Tube, Electric -Tuning, Two -Band, A -C, Superheterodyne Receivers Model 96K Model 96T2 Electrical SpeciAcations FREQUENCY RANGES Standard Broadcast (A) 5404,720 kc Short Wave (C) Six Electric Tuning Positions 550 to 1,500 kc

2、Two stations between approximately 550- 950 kc * Two stations between approximately 680.1,180 kc (RC -351F) * Two stations between approximately 690-1,225 kc (RC -351F M, RC 351F R) Two stations between approximately 890.1,500 kc Intermediate Frequency RCA TUBE COMPLEMENT (1) RCA -6K8 First Detector

3、 -Oscillator * (5) (2) RCA -6K7 Intermediate -Frequency Amplifier *(6) (3) RCA -6H6 Second Detector and A.V.C. *(7) 5.8-18.0 mc 455 kc (4) RCA -6F5 Audio Voltage Amplifier Audio Power Output Full -Wave Rectifier Tuning Indicator Mazda No. 47, 6.3 volts, 0.15 amp. 96T2, 96K 971( 105-125 volts, 50-60

4、cycles, 75 watts 80 watts 105-125 volts, 25-60 cycles, 75 watts 80 watts RCA -6F6 -G RCA -5Y3 -G RCA -6U5 Pilot Lamps (2) POWER SUPPLY RATINGS Rating A Rating B Rating C POWER OUTPUT Undistorted Maximum LOUDSPEAKER Model 96T2 Type 6 inch, electrodynamic Voice Coil Impedance at 400 cycles 2.6 ohms BL

5、ACK RED ST. El, BLACK 6r6G PLATE BLACK -SRO,. 6E60 SCREEN .N ce SPEAKER PLUG CONNECTIONS 2=. VOLUME. TONE OFF FULL TONE * 2ND PROD 96K, 96T2 97K *3RD PROD 96K, 96T2 RC -35I RC -351F RC -35I 97K RC -351F See following page DOCT LOUD L POWER -TONE -VOLUME CONTROL 100.130/140.160/195.250 volts, 40-60 c

6、ycles, 75 watts 80 watts 96T2 96K 97K 2.0 watts 2.5 watts 4.0 watts 4.5 watts 96K 97K 12. inch, electrodynamic 2.2 ohms wmN M R R BROADCAST SHORT WAVE A PUSH BUTTON CONTROLS RANGE -TUNING CONTROL RANGE TUNING MODEL 96T2 ADDITIONAL REPLACRIENT PART: Stock No. 14616 Coil - Field coil for speaker stamp

7、ed 84308- 1 SPEAKER STAMPED 84308-4 Replacement parts: Stock No. 32918 Cone - Cone and voice coil 32919 Coll - Field coil 32920 Transformer - output trans. 31302 Plug - 4 contact male plug Voice coil impedance 2.2 ohms Field coil resistance 1290 ohms RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERI

8、CA, CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN PAGE 620-C 96K, 9612, 97K MODELS 96K, 9612 Changes in 2nd and 3rd Production: The 2nd and 3rd productions are identified by the letters M and R respectively after the RC number stamping. (Thus: RC -351M, or RC -351R.) For service data applying to ci

9、rcuit, alignment, chassis layout, R- F and I -F coils, electrolytic capacitors, and push-button ranges of the 2nd and 3rd production runs, refer to the corresponding M and R changes in the Service Note for Model 97K. PUSH-BUTTON FREQUENCY RANGES Button No. 1 (left), and No. 2 Button No. 3 and 4 Butt

10、on No. 5 and 6 ANTENNA TRIMMER YANK CAPACITANCE C31 and C32 C33 and C34 C35 and C86 TUBES Power output tube Rectifier tube 1ST PRO- DUCTION 550- 950 kc 680-1,180 kc 890-1,500 kc 20-170 mmfd. 70-310 mmfd. 120-470 mmfd. 6F6 5W4 Stock No. 2ND PRO- 3RD PRO- DUCTION DUCTION (Chassis (Chassis Stamped M) S

11、tamped R) 550- 950 kc 550- 950 kc 6901,225 kc 690-1,225 kc 890-1,500 kc 890-1,500 kc 20-170 mmfd. 20-170 mmfd. 50-310 mmfd. 50-310 mmfd. 120-470 mmid. 120-470 mmfd. 6F6 -G 6F6G 5Y3 -G 5Y3 -G Stock No. Stock No. Cap -Tube shield cap for 6F5 12110 12110 Capacitor -6.8 mmfd. (C1) Capacitor -15 mmfd. (C

12、l) Capacitor -Antenna trimmer capacitor bank (Cal, C32, C33, C34, C35, C36) Capacitor -100 mmfd. (C5, C6, C7, C8) 14079 31387 30904 14079 32486 30904 12896 32486 Capacitor -109 mmfd. (C5, C6) 14262 Capacitor -120 mmfd. (C7, C8) 12404 Capacitor -180 mmfd. (C37) mounted under chassis 13003 13003 Capac

13、itor -180 mmfd. (C37) in 2nd I -F trans. Capacitor -620 mmfd. (C24) Capacitor -580 mmfd. (C24) 31381 31381 14712 32492 Capacitor -Comprising two 10 mid., one 20 mfd., and one 5 mfd. sections (C16, C18, C19, C41), cardboard case, mounted horizontally 31371 Capacitor -Comprising two 10 mid., one 20 mf

14、d., and one 5 mfd. sections (Cl, C18, C19, C41), metal -case type, mounted vertically 32485 32485 Coil -Antenna coil A and C bands (L1, L2, L3) mounted vertically Coil -Antenna coil A and C bands (Ll, L2, L3, L43) mounted horizontally 31378 31378 3248(1 Coil -Oscillator coil A and C bands (L4, L5, L

15、8, L7) mounted vertically (no magnetite core) 31377 31377 . Coil -Oscillator coil A and C bands (L4, L5, L6, L7) mounted horizontally (with magnetite core) Coil -Push button oscillator coil (L37 or L38) 31385 31385 32489 31385 Coil -Push button oscillator coil (L39 or L40) 31384 32487 32487 Coil -Pu

16、sh button oscillator coil (L41 or L4) 31383 31383 31383 Core -Adjustable core and stud for oscillator coil, Stock No. 32489 12800 Resistor -220.000 ohms, watt (R5) 12264 12264 Resistor -220,000 ohms, 1/10 watt (R5) Switch -Range switch (Si) 31367 31367 11398 32490 Transformer -1st I -F trans. (L10,

17、L11, C5, C6) 30902 30902 14376 Transformer -2nd I -F trans. (L12, L13, C7, C8) 30903 30903 Transformer -2nd I -F trans. (L12, L13, C7, C8, C37, R4, R5) Dial -Dial scale (glass) 31398 31396 14283 32356 There are three different productions of Model 97K, con- veniently identified by rear chassis stamp

18、ing as RC -351F, RC -351F M, and RC -351F R. RC -351F has a cardboard -case electrolytic with five leads. RC -351F M has a metal -case electrolytic with lug con- tacts, and the range of No. 3 and 4 push buttons is 690 - Calibration Scale, RC -351F and RC -351F M (IlnnnmlInllnnnnlnnnnlnnnnrmnnlnlllnl

19、llnnmllrngmllnnlnnlrnglnllrnglrnlnnlmllnnnnlmlllnllnnmlllnqmlhrnnnl 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 1,225 kc instead of 680-1,180 kc as in RC -351F. RC -351F R has the metal -case electrolytic, and the same push-button ranges as RC -351F M, and in addition has differ

20、ent antenna coil, oscillator coil, range switch, and i -f transformers. 55 60 STANDARD BROADCAST 70 80 90 POLICE 110 130 150 170 A SHORT WAVE- MEGACYCLES , , . 11 . , . . . . . . . . . ,. . .,., , , 6 7 8 9 10 12 14 16 18 MtxiCo CIT. 49M CHICAGO-N.VORK CITY -CINCINNATI-NTTSWRON RIRLIN- ROSTON -TORON

21、TO - HAVANA SH AVE ST A HAVANA -CHEWY -MALA. 71 M LONDON- RERUN - MOSCOW -ROME MEXICO CITY - SP?LD - RUENOS A. IONS HUIrIN 23M MAGUS AMTE 19M PARIS 16M LONDON - ROME - PARIS RERUN - NTTSRGH WIN- LONDON EIREIN - TOKYO - PITTSGH LONDON - SCREWY NEW YORK 180 170 160 150 140 130 120 110 100 90 80 70 60

22、50 40 30 20 10 0 收音机爱 好者资料库 RadioFans.CN PAGE 62i-C 96K, 96T2, 97K N V- AS2Z J ,1 O ss o zz1nW KO U K S 4 -Ih o N Zi u I , * CATHODE CURRENTS (11 6K8 12.0M.A. 121 6)7 10.7 M. A. 13) 6H6 141 6F5 0,37M.A. (5) 6F6-10 41.0 M.A TOTAL RECTIFIED A CURRENT_:70M.A O V Am uF 2I. o O O 0- -7mV AVM- -Hh Lc, -F-

23、,. . t8 _ . r r.: .f K a, - LJ Q t m S ,- L n/ . .(4.,li ,. I Od iWJ m ( o I 0 NF QS N I LL roS (-,S I I 0A r !i _ N m T co O K N R X N in coo - US r J Z =J O 3 02 1-v Z r -J h Q =N 3 W o / m H /m d o Z W l O . NnS f _ doLL S -.-S V HF- o 727-111 n r N J O ul00l.0Q J N OUO co N oo ei- U*4F i h u S J

24、 收音机爱 好者资料库 RadioFans.CN PAGE 622-C 96K, 9672, 97K 4 DF F e ZJ J Fo V -C *I. I -ce ru f L ,)se), -zit C i I. rn o N re w I N Orr O OUryi xsK J pp r 1 llr A 6 4 o V O cc O HH - HA_ -v-1 I r r= K N O .,., o N 5 n l ,00, tL N O U I _e. a /Hi 4 o O v v a tr) I . =H U O= a r-1 O H c=.1 c i12 W O O u)2 25

25、S t-4 CZ) For n00 O (.7ZNo oQ Wt -1 d w rv,a Q Cr u .- Z ro 0 h-1 = Q W W U 0 w E-+ OmrDnD U fY a IYZ4DH Qnoccw U_Nnam.D Q / W W J W 2 C/ H W O U ct CT W O Q O. pty!o eLL V Y = H Yi rr C 0 W ,7-r vi w O rl H z.y c z Ei ow U P Q z E-1 Y z S-. O H a P O ) m Y ;J z W e C o .9r J u Z 4 SJ vi S wW t o .Q

26、. m w oQ 1 111 11 w 4 o o 9-.2t w m CC p n) a N Oin V .no 2j1 .DN l V N ro4. 1 UNI -trie) , M ,0o U e- a2 Nce 4 -V2 not. NA VT N r- m JA QSiIQSi.O 1 41 11 d Jd J d r- 11 11 N 1 gh- F V F a.) X O M Y i 0 $ U rn m J/i e.11053.5.(251 -r(5 -0M -19I. J N PAGE 623-C 96K, 96T2, 97K C3 GREEN TO 61.(8 GRID/

27、SELECTOR- SWITCH RED RED 51 YZ 2T POWER TRANS. TI TO REAR SECTION W OF GANG m TO ANT 5Y 3G REGT. u 021 J BLUE J Y C25 - OF go6 O O J Chassis No. RC -351 F and RC -351 F M BROWN r YELLOW i RANGE SWITCH L 6K8 1ST DET. therefore, a calibration scale is attached to the rear of the drum which is mounted

28、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 t

29、he 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 3/8 -inch. The drum is held to the shaft by means of two set screws, which must

30、 be tightened securely when the drum is in the correct position. Pointer for Calibration Scale.-I provise 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 f

31、ully meshed. RC -351F and RC -351F M Steps Connect the high side of test- osc. to- Tune test- osc. to- Turn radio dial to- Adjust the fol - lowing for max. peak output 1 6X7 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 8K8 det.

32、grid cap, in series with :01 mfd. 455 kc L10 and L11 (1st I -F Trans.) 3 Antenna Ter- minai, in series with 400 ohms 15.2 mc 15.2 mc (33.6) C band C30* (ant) 4 Antenna Ter- minal, in series with 200 mmf. 1,500 kc 1,500 kc (28) A band C25 (osc.) 5 Follow Adjustments for Electric Tuning. * Use minimum

33、 capacity peak if two peaks can be obtained. * Rock gang slightly while adjusting C30. Check to determine that C21 has been adjusted to the correct peak by tuning to approxi- mately 40.5 (14.29 mc), where a weaker signal should be received. Note.-Oscillator tracks 455 kc above signal on both bands.

34、C30 ANT. c21- O5C. C25 05C. 1 500 Kc AN 1cND IST OCT. & O5C LII L13 /Sec ADJ. / SSC ADJ. I 455KC 455 KC 12 -AI F lT RAMS) Dec -OO 00 43 O* 0* CORES S S (.$) ANI.TRIMMENS Q.0!0 ,0 3 690-1500 69o- 1226 550-950 HC KC TI UNDER CHASSIS R.,-JSIr L1-600 KC 1ST AUDIO_ OUTPUT vICTROLA JA TUNING IND. POWER SP

35、EAKER CABLE - CORD * In RC -351F, push buttons 3 and 4 cover 680.1,180 kc. Dial -Indicator Adjustment.-After fastening the chassis in the cabinet, attach the dial indicator to the drive cable with indicator at the 530 kc mark, and gang condenser fully meshed. The indicator has a spring clip for atta

36、chment to the cable. For additional details, refer to booklet RCA Victor Re, ceiver Alignment. RC -351F R Steps Connect the high aide of test- osc. to- Tune test- oec to- Turn radio dial to- Adjust the fol - lowing for max. peak output 1 8E7 I -F grid cap, in series with .01 mfd. 455 kc A band, Quie

37、t 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 Ter- minal in series with 200 mmf. 1,500 kc 1,500 kc (27.4) A band C25 (osc.) C30 (ant.) 4 Antenna Ter- minal, in series with 200 mmf. 800 kc 800 kc (1

38、48) A band L7 (osc.) 6 Repeat steps 3 and 4. 6 Antenna Ter- minal, in aeries with 400 ohms 18 mc 18 mc (15) C band C21 (osc.)* 7 Follow Adjustments for Electric Tuning * Rock gang slightly while peaking C21, and use minimum ca pacity peak if two peaks can be obtained on C21. Note.-Oscillator tracks

39、455 kc above signal on both 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 stan

40、dard 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 sulated screwdriver or alignment tool such as RCA Stock No. 31031. Allow at least five minutes warm-up period before

41、 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. Use one or two feet of wire as an antenna to ensure sharp peaking. 3. Push in the diaLtuning button, and manually tune in the first station on the list. 4.

42、 Push in station button No. 1 (second from left) and adjust No. 1 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. 5. Adjust No. 1 antenna trimmer (C36) for maximum output on this station. Clockwis

43、e adjustment of cores and trimmers tunes the circuits to lower frequencies. 6. Adjust for each of the remaining five stations in the same manner. 7. Make a final readjustment of the magnetite -cores. I. F. PA Precautionary ing. (2) away from must be Victrola dressed around The leads trolytic capacit

44、or Ti RED Lead Dress. -(1) Dress 110 -volt leads away All leads in vicinity of antenna and oscillator coils the coils. (3) Electric Tuning lamp leads from dressed against front apron. (4) Keep speaker jack. (5) Lead from C19 in electrolytic (RC -351F left -end of push-button switch, and against acro

45、ss back of chassis in RC -351F must be dressed to prevent approaching the Victrola jack. GREEN- El GREEN - from audio wit. must be dressed push-button switch leads away from R) must be chassis base. (6) under the elec- j3.,2 INDICm-oR DRIVE CORD 3-re 96K, 96T2, 97K STReT SPRINGS 31418 V I TO POWER -

46、 REO SUPPLY =RECT. RED- _ RED TR. BLACR- BROWN- PULLEY TOn - TAL - RECT. PLATE Universal Power On 3)63 I o D BLACN.- Transformer Connections. RED- = 110volt supply for a VicYELLOW trola Attachment may be -,11BLACK-00000 GREEN * - BROWN- obtained by connecting the /!- DCUM role C. -4 31874 l BLUE mot

47、or to the REiie 5000E O DRUM RBRFTg 31368 RED- _IN AMP. FI L. red and the BLR, YELLOW BLUE- red black leads. (TAPED) NOTE. INSERT CONNECTOR 050 - a DRUM SHOWN WITH ORNO BETWEEN COMMON CONTACT RT MRXIMUM CRPRCITY (CENTER)AND CONTACT CORRESPONDING TO PREYA I LING POWER SUPPLY RATING. REPLACEMENT PARTS 96 K 98T2 Insist on genuine factory -tested parts, which are readily dentified and may be purchased from auth