RCA-Victor-Co-Inc-816K 电路原理图.pdf

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1、PAGE 612-B MODEL 816K Sixteen -Tube, Seven -Band, AC, Superheterodyne Receiver Model 616K Radiation Cathode Current Readings Measured with Millianuneter Connected at Tube Socket Cathode Terminals Under Conditions Similar to Those of Voltage Measarements RCA-6K7-R-F Amp. 6.2 ma. RCA -6L7 -1st Det. 3.

2、0 ma. RCA-6J7-Osc. 10.0 ma. RCA-6J7-Osc. Control 1.2 ma. RCA6K7-1st I -F Amp.6.7 ma. RCA-6K7-A-V-C, A -F -C,Eye I -F Amp. 8.0 ma. RCA -6K7 -2nd I -F Amp.6.9 ma. RCA -6H6 -2nd Det. RCA-6H6-A.V.C., A.F.C., and Eye RCA-6C5-A-F Amp.1.0 ma. RCA-6F6-Driver 23.0 ma. RCA-6L6-Output 51.5 ma. RCA-6L6-Output 5

3、1.5 ma. RCA-6G5-Tuning Tube2.2 ma. RCA-5T4-Rectifier90 ma.e RCA-5T4-Rectifier 90 ma.* (*Cannot be measuredatsocket) Electrical Specifications FREQUENCY RANGES Standard Broadcast (A) 530.1,720 kc M.W. Medium Wave (B)2,400.7,100 kc S.W. Short Wave (C) 7,100.21,750 kc 49M. (49 Meters) 5 970.6,240 kc 31

4、M. (31 Meters) 9,410.9,690 kc 25M. (25 Meters)11,680.11,920 kc 19M. (19 Meters)15,090 15,380 kc R -F ALIGNMENT FREQUENCIES 49M. (49 Meters)6,100 kc (osc., det., ant.) 31M. (31 Meters) 9,600 kc (osc.) 25M. (25 Meters) 11,700 kc (osc.) S.W. Short Wave (C). 9,500 kc (osc ), 20,000 kc (osc.) M.W. Medium

5、 Wave (B). 6,000 kc (osc.) Standard Broadcast (A) . 600 kc (osc.), 1,500 kc (osc.) Intermediate Frequency 460 kc RADIOTRON COMPLEMENT (1) RCA -6K7 R -F Amplifier (2) RCA -6L7 First Detector (3) RCA -6J7 (4) RCA -6J7 (5) RCA -6K7 (6) RCA6K7 A -V -C, A -F -C , and Eye I -F Amplifier (7) RCA -6K7 Secon

6、d I -F Amplifier (8) RCA -6H6Second Detector Pilot Lamps (11) Poway SUPPLY RATINGS Heterodyne Oscillator Oscillator Control First I -F Amplifier (9) RCA -6H6 A.V.C., A.F.C., and Eye (10) RCA -6C5 First Audio Amplifier (11) RCA -6F6 Audio Driver (12) RCA -6L6 Power Output. (13) RCA -6L6 Power Output

7、(14) RCA -6G5 Magic Eye Tuning Tube (15) RCA -5T4 Half -wave Rectifier (16) RCA -5T4 Half -wave Rectifier Mazda No. 46, 6.3 volts, 0.25 amp. Rating A 105.125 volts, 50.60 cycles, Rating B 105.125 volts, 25 cycles, Rating C 100.130/140-160/195-250 volts, 50.60 cycles, POWER OUTPUT Undistorted Maximum

8、 25 watts 30 watts Precautionary Lead Dress.-(1) Green bus lead from Cl to S2 should be 2% inches long, (2) green bus leadfrom C59 to S4 should be 2% inches long, (3) green bus lead from C13 to S3 should be 2% inches long, (4) bare bus lead from C12 to S3 should be 1% inches long, (5) blue and red l

9、eads from tube No.3to L9 should be dressed away from the coil, (6) tube No. 3grid lead should be 6 inches long, (7)all leads to rear of oscillator coils should be dressed close to the chassis, (8) clamp Magic Eye cable to the dial bracket, (9) filament leads should all be twisted, (10) leads from C4

10、4 and C48 should be replaced dressed away from other leads,(11)twisteda -cleads near R22 should be dressed away from R22, (12) leads from S5 to the first i-f transformer should be twisted, (13) temperature - stabilizing capacitors marked 1A, 2A, and 3A should be 200 watts 200 watts 200 watts LOUDSPE

11、AKER Type12 -inch Electrodynamic Impedance (v.c.)11.5 ohms at 400 cycles dressed perpendicular to cnassis,(14) blue bus lead from L21 to tube No. 1plate should be dressed away from shield plate on range selector assembly, (15) C36, U38, and 1C2 of tube No. 9 should be grounded to the ground lances n

12、ear corner of chassis. The following should be dressed away from chassis: (16) Yellow bus lead from cathodeof tube No. 3 to S3, (17) yellow bus lead to OG of tube No. 2,(IS) yellow bus lead from the 5th i-f transformer to phonograph terminal board, (19) blue bus lead from C47 to R26. When necessary

13、to replace bus leads, use only wire having same diameter as original. REFER TO INDEX FOR ADDITIONAL DATA PER- TAINING TO ELECTRIC TUNING L RCA VIC IOR DIVISION OF RADIO CORPORATION OF AMERICA, CAMDEN N. J., U. S. A 收音机爱 好者资料库 RadioFans.CN A.G. 10SWITCHI 8 PRO 1S - IN THIS DIRECTIONL2 0.7A. IA 1-. 2,

14、1 02 Fs Is, tF VTetia;2 o, -9- 19 METERS 0-.7-. 2SMETER5 0-.- 31 METERS ET 40 METZR5 0.-.12-.0 RANO 0-u-esIMMO BAND C34 12 MMF. TO DIAL LAMPS L13 .070 EL LI449m 70 C64 is MMF. C66 2-20 MMF. C66 0700 MMF Ca 30 MMF C3 2-20 MMF L2.1 1100. C5 4100 MMF. M01,0, ISLE Balwar,P, ,(ROTOR.) C67- 204m LIS 0AO L

15、I6 C74 4700MM F. T701,07 R.F. 6K7 151 DET. (CONVERTER 6L7 43ornm, C22 M, 53009k R41 1200a. C60 O. I mF0 R13-1000, RANGE SELECTOR SnowN 1NBAND POSITION. ROTOROTWERATE KNOB CBANOSLOCKWISE ALL C21 1351 F. LEE 10I.F. L23 3.KK7 TOT AL 5 24 C23 430F L26(27 Ef5En 0 C29 1=.4 C28 220 MMF. MMF R16 I 0 MFG C24

16、 .01 MED 0.1C6cfr%.= MFD. R14 no,noc, OSC.05C. CONTROL 6J76J7 33000 ft 560,000 O631500 MINE C19 54310 PeltAF MOVABLE SR)EMENTS G 53 2-20 MMF. - 2 -20 MNIF. C19 0.1 MED RE 3900. 97-1 MED. S 016 014 470 Nnivir 470,000 EL =7:6ZMFD RECT.RECT. Ari. 574574 2550 MED 16 A.V.0 -I.F. 6K7 C753 L30 26F 6 C30 .0

17、1 INFO. NR1C37 T C70 NIT. la a 29 6L C31 1E10 MMF C38 - 11,FO R18 a10000 C36 100 CLOSEDFPOMRRNAD1.0DL 6H6 - tO vm.,VTOtLr.49N17,ARuD51/30C45 A.V.C.-4 F.0 EYE ,C39-.01mFD) / 6C5 .C4m0-4543 L33 C35 120MMI -A17:470000 21.0 D ET. 6146 220,0000. FIA2A0 G. C4 .02s2R19 MFD2.2 MEG Ti GREF GREEN C25 0.1 Mr.

18、T. , R29 0A. 4., sC44 = H.F.a-, ,.0 .,- ToNE_, 1 -A.F.0 Al 1=1, 57 ,., C41-.0iskiro . _ C43 .015N1FD.,c560000 coturRiz F427 R26, ( L.F. TONE CONTROL (SEE NOTE) ,E, SS -511 ARE MOUHTE0 Low roNEPOWER SWITCH. C49 56 - SIO -sIS NNE mouNEED.MFD 005 L38 FIELD 0300.R. 054C55C571 R34 zs FD 1E.A. MEMEDMN1Fo.

19、 5200 C56 R20MED, 7 7700A BLACK BROWN P 1138-82, R39 3AtiP OWE LA 910 0.-ESPEECH FUSES TElLOSV mtlz, MANUAL 511, t1 MUSIC al 59MOTOR 1.ARIPIvo LAmelwATOKIrtMOT9., MUSIC SHE.J.- YELLOW of I TONE CONTR.-1. -Schematic Circuit Diagram NOTE:On laterproduction, a /.8 ohm resistorisconnected in series with

20、 the indicator lamps. When servicing, this resistor shouldbeinstalled.Refer to text for additional changes and service hints. AUDIO DRIVER 6F6 TUNING MOTOR 7 4- ANDA 5,NITcHES H.F. TONE CONTR. SCCIA. OUTPUT 6L6 C5I .005 MFO 000000 111P 0.59 A25.11. L34 C52-.011vIrD 0.A. _ - MOTOR REVERSING SW ITLIT

21、512 GO, 0.1.11 25 8.00. 100 LO ES -2 ELECTRIC REMOTE -,., CONTWL. N,L, rEREERYK ONSis ELECTRIC . ., 0 WEEMM NOT ) SWilk.n 4 MANUAL,. ,. REMOTE CONN REMOTE RESti te:1X1r- ONS. STATION, SELECTORI DISC_ 收音机爱 好者资料库 RadioFans.CN PAGE 6i4 -B 816K REAR APRON OF CHASSIS G A LI2-OSC 9,600K.Ccl 31 METER LI 1-

22、0SC7 -Ti) 26 METER 11,700 H.C. 15,300K 19 METER Iql L14-OSC. C BAND 9500K. C OUTPUT OUTPUT 0 TI RECT. CORP. PACK SLUE_ RECT. HOLE BLUE 6J7 3 OSC BLACK BLACK - RED 512 SLACK-OROI BLACK - RED TR OSC A BAND 600 K.C. CIO -05C.CIS OSC.C68-OSC.C65-OSC ,49 METER ,A -BAND 13 BANDBAND 6100 K.C.1500 K.C.,6000

23、 K.C./ 20,000 K.C. REMOTE. CONNECTION MOWN - -I GREEN -3 EEO-6IDEA- -6 BLUE -YELLOW -6 611t614-1-11.016/- REO-YELLOY -a STATION SELECTOR DISCS BLACK - ILO B LUE BLACK BLACK - MOTE TUNING MOTOR T4 BOTTOM TERM. AUDIO AMPLIFICATION AND ARC. SUPPRESSION SWITCHES ITUNING TUBE HOLE C. TOP VIEW- FRONT OF C

24、HASSIS B R. wN BLUE - STATION SELECTOR PUSH BUTTONS .t.MUSIC ,-ELECTRIC rIr-GRE ENC -BLACK GREEN -STATION SELECTOR If 665 L - - - / CIS, CY,-.7,- OSC./ / CONTROL, / Ta i ,6J7 C6E,C6S 0CY /19 oto 6L7 dJC220 CEO-DET.,A 49 METER 6100 K.C. C 3 -ANT 49 METER 610?m.C. DET R.F Li fTk- 1,* LF BLACK -6E0 6 -

25、BAND 6K7 LEATErKRi REDfi 31METERy GREEN 49 NIETEitYENE ELLOW, BLACK-EYE BAND BROWN 7 6K7 TRANS. Id 07- 4 IF TRANS. 9 L SPEECHMANUALPUSH BUTTONS -Radiotron, Coil, and Trimmer Locations 369V.369V. 340V.340V. I A.C. RECT. A.C. -3.2V. 5T4 tf -r -F Ilir)! 6.4V. , r A.C. I, 93V IirD cG236V, -V. OSC. 6,-1/

26、 0. 0 13 1 OUTPUT W ., 6L6,-I8V.- -1 I1i -16V. 191V.1OV. V I: A.C. (41.1)6.4V. ELECT 6.4v i119IV.O.V.-2 Ar -Ca 1,I OSC.ooNTR, I , .1EJT CS3 i I1 I I 1I. i .36r. 1 : 350V. LIAV.1 :35,0V. OUTPUTj 1 I ,I6V. 1 I A.C. I I6k.6 I II I BOTTOM VIEW -REAR OF CHASSIS -Ridiotron Socket Voltages, Coil, and Trimm

27、er Locations Measured at 115 volts, 60 -cycle supply -Tuned to approximately 1,000 kc (Standard Broadcast) -Manual control - No signal being received -Volume control minimum -Fidelity control optional R.F 6K7 3.6V. - -, I.T.13E7. 1:6.4V. 7. 6LT I. 40V. -I 1 L _ _ (.41.) _.- 7-372V.s1 j _o.,. To BLAM

28、-GROym TA BLAcK III TOR -RED TR- I TUNING TUBE 643 TERM. EIRD 206V. CG:z -CV. ,196V.1 196V. ELECT ELECT LAP ADJ CAP C56 C G,t z.F I F 7- TRANSF 242V. PRI TRANSF HOLE ISTI F I 2TP I F OV. SC 55 (96V1) O PR! .V. /11:1-1 rit/VA.0 4SOK.C. ADRIVER6DF (OV)_ 0 31. I F TRANSF L29-1 2421,7 kao K.c) 2.6V Af_

29、1130 6AV 41t.1-4 -0 V - - - 242V2.6v_: AVC IF K T_ 1, AUDIO - .P I.F 6K7 5 / GREEN 2. I.F TRANS AUDIO DRIVER 2P-13ET. AUDIO TRANS. 16,- 10 - SEC. ADJ. L36 460 H. C - SEC. ADJ. I.FL24 460 K.C. vELLO6K7 DIAL LAMPS T-70837-0 SEC.ADJ. L27 460 K. C SEC. A0J. L30 460 K.C. SEC. ADJ. L33 460 K .0 .,33v I4F.

30、 ov, YO -1;(TRANSF. r - L.32) itZeTSETAT A VC ,A 6-C , EVE 6H6 6K7 1 ,C.G. (-)256V.- (114VM - 95V. 5TF TRANSF 23W.61471 6146 OV.jAv FA.0 IL_(.3,z -v.) 3.2V. , 1 16.8V. BRD. 6.4V. C.G. . Note: Two voltage values are shown for some read- ings. The value shown in parentheses with asterisk (*) indicates

31、 operating conditions without voltmeter loading. 收音机爱 好者资料库 RadioFans.CN PAGE 6 i 5- B Alignment Procedure 816 K The Magic Eye may be used as an Calibrate the tuning dial by adjusting dial pointer to the output indicator for all adjustments except L35 and L36. It is preferable to replace the 6G5 tun

32、ing tube with a 6E5 dui- left ends of horizontal calibration lines with the gang tuning- condenser plates in full -mesh position. This is a screw -driver ing alignment. adjustment. CAUTION. -The magnetite core screw L32 on the bot torn of the 4th i-f transformer has been accurately adjusted, The Fid

33、elity control should be turned counter-clodcwise for an exact electrical balance of coil L32 to center tap, dur duringallalignmentoperations.The Manual -Electric- ing manufacture and should not be disturbed. However, if Remote switch should. be turned to Manual (clockwise) during alignmentunlessothe

34、rwisespecified. The bottom for any reasonthe adjustment has been moved from its shield pan must be in place during spread -band alignment. othriginal position, it will be necessary to mechanically adjust sc screw until of the end of the stud protrudes exactly 1 /8 Permit the set to operate at least

35、five minutes before attempt- an inch ing alignment. (four threads exposed) above the brass bushing prior to any alignment operations. Test Oscillator Order of AlignmentConnection to Receiver Dummy Antenna Frequency Setting Range- Selector Receiver Dial Setting Circuit to Adjust Adjustment Symbols Ad

36、just to Obtain 1 4th I -F L33 Turn Extreme Counter- clockwise 2 No. 6 6K7 Eye I -F Grid Cap .001 Mfd.160 kc Standard Broadcast No Signal 550-750 kc 3rd I -F Trans. L29 and L30Min. Eye . 3 No. 5 6K7 1st I -F Grid Cap .001 Mfd.460 kc Standard Broadcast No Signal 550-750 kc 2nd I -F Trans. L26 and L27M

37、in. Eye 4 No. 2 8L7 Det. Grid Cap .001 Mfd.460 kc Standard Broadcast No Signal 550-750 kc 1st I -F Trans. L23 and L24Min. Eye 5 No. 2 6L7 Det. Grid Cap .001 Mfd.460 kc Standard Broadcast No Signal 550-750 kc 5th I -F Trans. L35 and L36Max. (peak) 6Ant. Term.300 Ohms 8 kc a 49M.6.0 mc49M. Osc.C10 Min

38、. Eye b 7Ant. Term.300 Ohms 6,100 kc49M.6.1 mc49M. Osc.C10Min. Eye 8Ant. Term.300 Ohnis6,100 kc49M.6.1 mc49M. Det. C20Min. Eye 9Ant. Term.300 Ohms6,100 kc49M.6.1 mc49M. Ant.C3Min. Eye 10Ant.Term.300 Ohms 1,200 kc c .,3114., 9.6 mc31M. Osc.L12 Min. Eye d 11Ant. Term.300 Ohms1,300 kc25M.11.7 mc25M. Os

39、c.L11 Min. Eye e 12Ant. Term.300 Ohms1,700 kc19M.15.3 mc19M. Osc.L10 Min. Eye f 13Ant. Term.300 Ohms20,000 kcS.W.20 mc S.W. H -F Osc. (C) C85 Min. Eye g 14Ant. Term.300 Ohms9,500 kcS.W.9.5 mc S. W. L-FOsc. (C) L14 Min Eye. h 15Ant. Term. 300 Ohms20,000 kcS.W. 20 mc S.W. Osc.(H -F C) C85Min. Eye 16An

40、t. Term.300 Ohms 8,000 kcM.W. 6.0 mc .W. M (.Er)Osc.C68 Min. Eye 17Ant. Term.200 Mmfd 1,500 kc Standard Broadcast ., ,500 kc A H -F Osc.C15 Min. Eye 18Ant. Term.200 Mmfd.600 kc Standard Broadcast 800kc A L -F Osc.L17 Min. Eye 19Ant. Term.200 Mmfd. 1,500 kc Standard Broadcast 1,500 kcA H -F Osc.C15 M

41、in. Eye 20Proceed to A-liC Discriminator Adjustments Outlined Below a -Refer to Spread -band Adjustments below for method of using the RCA Stock No. 9572 Crystal Calibrator for adjustments 6,7,8, and 9. b -Use minimum capacity peak if two peaks can be obtained from 1,000 kc harmonics. c -Refer to Sp

42、read -band Adjustments below for Test Oscillator setting for adjustments 10, 11and 12. d -To check for correct harmonic carefully set Test Oscillator to 1,600 kc using Crystal Calibrator. Signal should be indicated by Magic Eye in 31M. band near 9.6 mc. e -To check for correct harmonic carefully set

43、 Test Oscillator to 900 kc using Crystal Calibrator. Signal should be indicated by Magic Eye in 25M. band near 11.7 mc. f -To check for correct harmonic carefully set Test Oscillator to 900 kc using Crystal Calibrator. Signal should be indicated by Magic Eye in 19M. band near 15.3 mc. g -After this

44、adjustment, check for image signal by shifting receiver dial to 19.08 mc. (19,080 kc). h -Check for image at 8.58 mc. (8,580 kc). PAGE 6i6 -B 816 K Spread -band Adjustments.-Alignment ofthespread (Overseas) bands requiresspecial procedure sincetest oscillators used alone are not ordinarily sufficien

45、tly accurate for this purpose. The RCA Stock No. 9572 Crystal Calibrator affords a convenient and accurate alignment standard. Wrap a few turns of wire around the crystal calibratorand connect one free end to the antenna terminal ofthe receiver. Snap crystal calibrator Hi -Lo switch to Hi (1,000 kc)

46、, turn the range selector to 49M. band, and set receiver dial pointer to 6.0 mc. Adjust oscillator trimming capacitor C10 for minimum Magic Eye opening (Min. Eye). Use the peak indicated by the alignment table. Snap Hi -Lo switch to Lo (100 kc) and locate 6,100 kc (the first100 kc harmonic above 6,0

47、00 kc) by slightly readjusting C10 with the dial pointer set at 6.1 mc. This method insures selection of correct crystal calibrator harmonic. Adjust 1st detector and antenna trimming capacitors, C20 and C3, for maximum output. Follow the tabulated alignment procedure for the 31M., 25M., and 19M. ban

48、ds. Use the crystal calibrator to obtain the necessary accuracy. For example, tune the receiver to thetoo() kc crystal calibrator output with the crystal calibrator Hi -Lo switch in Hi position. Snap Hi -Lo switch to Lo and carefully tune receiver to 1,200 kc (the second 100 kc harmonic above1,000 k

49、c) for minimum Magic Eye opening. Move crystal calibrator away from antenna wire, connect testoscillator, and carefully adjust test oscillator for minimum Magic Eye opening at a setting of approximately 1,200 kc. Raise test -oscillator output to give sufficient harmonic output and use 8th harmonic (9,600 kc) for aligning in 31M. band at 9.6 mc. Align in the 25M. band at 11.7 mc, (11,700 kc), the 9th harmonic of the test - oscillator 1,300 kc output. Align in the 19M. band at 15.3 mc (15,300 kc), the 9th harmonic of the