RCA-CTC9-Sams-459-1电路原理图.pdf

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1、PHOTO FACT* Folder J750- *: wif/lClRCUIIRACE* RCA VICTOR CHASSIS CTC9A, B, F, H, N, P DISASSEMBLY INSTRUCTIONS SAFETY GLASS REMOVAL 1. Remove trim channels at the top and bottom of the safety glass by prying outward starting at the extreme ends. 2. Slide the retaining bars now exposed to the right b

2、y in- serting a small bladed screwdriver in the slots near the middle of bars. 3. Tilt safety glass out and remove. CHASSIS REMOVAL 210CK855 1. Remove 10 push-on type knobs from side of cabinet. 2. Remove 4 screws and 3 clips holding rear cover. Remove rear cover. 3. Remove speaker leads, HV lead, y

3、oke leads, picture tube socket and convergence board plug. 4. Remove 2 chassis bolts from bottom of chassis, 1 from top and 1 wood screw from top rear of chassis. 5. Remove chassis. MODEL 210CK855 (Ch. CTC9A) TRADE NAME RCA Victor MODELS CHASSIS 210CK855, 210CK856, 210CK857, 210CT822 CTC9A 210CK855U

4、, 210CK856U, 210CK857U, 210CT822U CTC9B 210CK885, 210CK886, 210CK889, 210CK905, 210CK906, 210CK907, 210CK920, 210CK924, 210CK935, 210CK936, 210CT835, 210CT836, 210CT837 CTC9F 210CK885U, 210CK886U, 210CK889U, 210CK905U, 210CK906U, 210CK907U, 210CK920U, 210CK924U, 21CK935U, 21CK936U, 210CT835U, 210CT8

5、36U, 210CT837U . CTC9H 210CKR940, 210CKH946, 210CTR845, 210CTR847 CTC9N 210CKR940U, 210CKR946U CTC9P 210CKR940, U, 210CKR946, U, 210CTR845, 210CTR847 . (Remote Transmitter) CRK3A (Remote Receiver) CTP7A MANUFACTURER Radio Corporation of America, RCA Victor Tele. Div., Camden 8, N.J. TYPE SET Color T

6、elevision Receiver TUBES VHF Twenty-four, UHF Twenty-five POWER SUPPLY 110-120 Volts AC, 60 Cycle RATING 275 Watts, 3 Amp. 117 Volts AC Z8 -o 2 V) HOWARD W. SAMS A CO., INC. Indianapolis e, Indiana The listing of any available replacement part herein does not constitute in any case a recommendation,

7、 warranty or guaranty by Howard W. Sams OOK RCA VICTOR CHASSIS CTC9A, B, F, H, N, P RadioFans.CN RCA VICTOR CHASSIS CTC9A, B, F, H, N, P FOLDER 1 WVHDVia HDO19 RadioFans.CN ALIGNMENT INSTRUCTIONS PRE-ALIGNMENT INSTRUCTIONS The High Voltage lead should be securely taped and kept away from the chassis

8、. Allow a 20 minute warm-up period for the receiver and test equipment. Suggested Alignment Tools: GENERAL CEMENT #8606, 8606L, 8282, 9295 WALSCO #2526, 2543, 2544, 2545 VIDEO IF ALIGNMENT Connect the negative lead of a 6 volt bias supply to point . Positive to chassis. Connect the negative lead of

9、a 15 volt bias supply to point Positive to chassis. Connect the negative lead of a 7 volt bias supply to point . Positive to chassis. Connect the negative lead of a 7 volt bias supply to pin 2 (grid) of the Horizontal Blanking Amp. Positive to chassis. Connect a clip lead from point to chassis. Pres

10、et Sound Reject (R26) at 75% clockwise rotation. Preset Sound Adjust (R27) at 50% rotation. Video IF shield must be in place during alignment. DUMMY ANTENNA Direct ii . SIGNAL GENERATOR COUPLING High side to ungrounded tube shield floating over Mixer-Osc. (V202). Low side to chassis. . SIGNAL GENERA

11、TOR FREQUENCY 43.8MC (Unmod) 42. SMC 45.75MC 44.0MC 41. 25MC 47.25MC 41. 25MC CHANNEL 4 . CONNECT VTVM DC probe thru 10 K to point fy . Common to chassis. Use nega- tive scale. DC pr*e thru 10K to point . Common to chassis. ADJUST Al A2 A3 A4 Mixer Plate Coil A5.R26 A6, R27 A7 REMARKS Adjust for max

12、imum deflection. Use peak with cere nearest printed board end of coil. Maintain VTVM reading of 1. 5 volts by adjusting signal generator output. Adjust for maximum deflection with peak at top end of coil. Adjust A5 and Sound Reject (R26) simultaneously for MINIMUM deflection with slug away from chas

13、sis. Reduce bias at point if necessary for sufficient indication. Adjust for MINIMUM deflection with slug away from chassis. Increase bias at point to -6 volts. Adjust A7 lor MINIMUM deflection with slug away from chassis. OVERALL VIDEO IF RESPONSE CHECK 9. 10. 11. 12. 13. 14. Connect bias as under

14、Video IF Alignment: Connect a . OOlmfd capacitor in series with a 180SJ resistor from pin 5 (Plate) of the 2nd Video IF Amp. to chassis with the resistor next to chassis. Connect a lOOOmmf capacitor across the scope leads. The Video IF shield must be in place during alignment. Connect the DC probe o

15、f the VTVM to point . Common to chassis. (Use negative scale). Use 10MC sweep unless otherwise noted. DUMMY ANTENNA Direct Fig. 4 SWEEP GENERATOR COUPLING High side to ungrounded tube shield floating over Mixer-Osc. (V202). Low side to chassis. Across VHF antenna ter- minals thru matching network (F

16、ig. 4). SWEEP GENERATOR FREQUENCY 45MC All VHF Channels separately MARKER GENERATOR FREQUENCY 42.17MC 45.75MC 41. 25 MC 47.25MC 41.65MC 42.17MC 42.75MC 45.0MC 45.75MC 41.25MC 42.17MC CHANNEL 4 All VHF Channels separately CONNECT SCOPE Vert. Amp. thru de- modulator probe (Fig 1) to pin 5 (plate) of 1

17、st Video IF. Low side to chassis. Vert. Amp. thru 10K to point . Low side to chassis. ADJUST REMARKS Set sweep output for . 1 volt peak to peak on scope. Retouch Mixer Plate Coil and A4 for maximum gain and symmetry of response similar to Fig. 2. Reduce the bias to -4 volts at point if necessary. Re

18、duce bias at point to zero. Retouch A7 to place marker in trap notch as in Fig. 2. Retouch A6 and R27 to place marker in trap notch as in Fig. 2. Remove capacitor and resistor load from 2nd Video IF. Increase bias at point to -6 volts. Use 3 volts peak to peak on the scope. Re- :ouch Al, A2 and A3 f

19、or response similar to Fig. 3 with markers as shown. Al controls the tilt, A2 affects 42. 17MC side of curve and A3 affects the 45. 75MC side. Connect a . OOlmfd capacitor from point to chassis Retouch A5 and R26 to place marker in trap notch if necessary. Remove . OOlmfd. Decrease bias at point to

20、-3 volts. SLIGHTLY retouch Al, A2 and A3 to correct or any overall tilt that is approximately the same on all channels. Repeat step 13. PAGE 4 RadioFans.CN ALIGNMENT INSTRUCTIONS (cont) SOUND IF ALIGNMENT Connect the negative lead of a 10 volt bias supply to point . Positive to chassis. _ In the fol

21、lowing steps the signal level may be reduced by disconnecting the lead from the terminal at point and connecting a Imeg potentiometer from point to chassis. The lead is then connected to the center arm of the control. This arm is then used to control the level of the signal applied to the Sound IF s

22、trip. Start alignment with the control turned to maximum signal. DUMMY ANTENNA . OOlmfd SIGNAL GENERATOR COUPLING High side to point . Low side to chassis. SIGNAL GENERATOR FREQUENCY 4. SMC (4000, FM Mod. 15 KC swp) CHANNEL Any non- interfering channel CONNECT VTVM DC probe thru diode probe (Fig. 5)

23、 to pin 1 (grid) of Audio Det. Common to chassis. USE SCOPE Across voice coil ADJUST A8 A9, A10 All REMARKS Connect a jumper from pin 7 (grid) of Audio Det. to chassis. Adjust for maximum deflection. Set generator for 1 volt on VTVM. Use peak with slug nearest top of coil form. Adjust for maximum de

24、flection. Set generator for 1 volt on VTVM. Remove VTVM, diode probe and jumper. Starting with slug fully counterclockwise, adjust to a peak. Continue turning clockwise until a second peak is reached and adjust for maximum at this second peak. Decrease signal until detector breaks out of lock as in-

25、 dicated by jagged portions of the sine wave on scope. Retouch A9 for symmetrical breakout similar to Fig. 6. 15. 16. ALTERNATE SOUND IF ALIGNMENT USING FM GENERATOR Connect the negative lead of a 10 volt bias supply to point . Positive to chassis. DUMMY ANTENNA . OOlmfd SIGNAL GENERATOR COUPLING Hi

26、gh side to point . Low side to chassis. SIGNAL GENERATOR FREQUENCY 4. SMC (Unmod) CHANNEL Any non- interfering channel CONNECT VTVM DC probe thru diode probe (Ffg. 5) to pin 1 (grid) of the Audio Det. Common to chassis. Connect scope across speaker voice coil. ADJUST AS A9, A10 REMARKS Connect a jum

27、per from pin 7 (grid 3) of Audio Det. to chassis. Adjust A8 for maximum deflection on VTVM. Use peak- with slug nearest top of coil form. Adjust for maximum deflection. Set generator output for 1 volt on VTVM. Peak with maximum core separ- ation. Repeat steps 15 and 16. Remove the diode probe and ju

28、mper. Turn off the signal generator and tune in the strongest signal in the area. Set Volume control for normal volume. Set All so that core Is flush with the top of coil form. Observe scope and listen to sound. Change bias at point to zero. Adjust All clockwise to peak. Continue clockwise to a loud

29、er peak , and adjust for maximum output at this second peak. Gradually decrease the signal until sound becomes distorted. Maintain distorted signal and adjust A9 for maximum output. 16. 4. SMC TRAP ALIGNMENT : TO tn DUMMY ANTENNA . OOlmfd SIGNAL GENERATOR COUPLING High side to point . Low side to ch

30、assis. SIGNAL GENERATOR FREQUENCY 4. SMC (4001, AM) CHANNEL Any non- interfering channel CONNECT VTVM USE SCOPE Vert. Amp. thru de- modulator probe to pin 6 (plate) of 1st Chroma Bandpass Amp. . Low side to chassis. ADJUST A12 REMARKS Adjust for MINIMUM 4001, indication on scope. 18. CHROMA BANDPASS

31、 ALIGNMENT 19. 20, 21. 22. The following alignment will require the use of an RCA RF Modulator (WG-304A) or similar device. Connect the negative lead of a 7 volt bias supply to point . Positive to chassis. Connect a clip lead from point to chassis. Turn Color Control fully clockwise. DUMMY ANTENNA .

32、Imfd Direct SWEEP GENERATOR COUPLING High side to pin 2 (grid) of 1st Chroma Bandpass Amp. Low side to chassis. SWEEP GENERATOR FREQUENCY 3.58MC (3-5MC Sweep) MARKER GENERATOR FREQUENCY 3.08MC 4.08MC CHANNEL Any non- interferin| channel CONNECT SCOPE Vert. Amp. thru demodulator probe (Fig. 7) to pin

33、 7 (grid) of X Demodulator. Low side to chassis. ADJUST A13, A14 REMARKS Adjust for response similar to Fig. 8 with equal marker height. Turn Brightness, Contrast, and Noise Controls fully counterclockwise. Connect a 330S2 Resistor and a 4mJd Capacitor in series from plate (pin 6) of 1st Chroma Band

34、pass Amp. to chassis. High side of sweep gen- erator to Video Sweep Input of RF Modulator. High side of signal gen- erator to Picture Carrier Input of RF Modulator. Output of RF Modulator across antenna terminals SMC (6MC Swp.) Set signal generator to unused channel 3.08MC 4.08MC Unused Channel Vert

35、. Amp. thru demodulator probe (Fig. 7) to pin 7 (grid) of X Demodulator. Low side to chassis. A15Remove clip lead between point and chassis. Adjust for response similar to Fig. 9. Peak with core nearest chassis end of coil form. Disconnect the 330SJ Resistor and the 4mfd Capacitor from V17. Check fo

36、r response similar to Fig. 10. If necessary, retouch A13, A14, s, unless otherwise listed. 1106365 (106366 J107636 1105223 ITEM No. R142 RMS R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175

37、 R176 R177 R178 R179 R180 R181 R182 R183 R184 H185 R186 R187 R188 R189 R190 R191 R192 R193 R194 R195 R196 R197 RATING 33K 5% 1W 120K 5% 470Q 820n lOmeg 150 K 470 K isoon 33 K looon 27K 2. 2meg 5% 470K 470K 6. Smeg 5% 270S! 5% 33K isoon 5% 15K 2W 27K 2W 680n 5% 47K1W moon 47K 3900(2 5% 1W 39001! 5% 1

38、W 390 5% 1W 820n 1W Imeg 15K3W 120 K 470K Imeg 15K3W 120K 470K 560SJ 5% 2W 39K 5% 4W 3300! 1W Imeg 47K5% 15K3W 120 K 470K ioon iw won iw loon iw 82H IW loon 820 K 820K . 49O HOTA 79K COLO/ leoon low leoon low 10K1W 47 REMARKS (4700) * (33 K) U05224 05224 M05753 1107291 COILS (RF-IF) DA AT . g-s s -s

39、 -s -s -s -s -s TA IRC PART No. Bll-239 TM4 Bll-137 TM4 Bll-136 TM4 Bll-137 TM4 Bll-136 TM4 Bll-137 TM4 Bll-136 TM4 Bll-133 IM4 MAtLORY PART No. SU-565 Net Req. TA16L Not Req. PTA754L Not Req. SU-54 Not Req. PTA754L Not Req. SU-54 Not Req. PTA754L Not Req. R15L Not Req. M100MPK SU-50 Not Req. PFL-60

40、A PFL-60A PFL-60A INSTALtATION NOTES oise Inverter AGC Red Background Green Screen Green Background Blue Screen Blue Background Vert. Centering Focus Horiz. Centering HV Adjust Ver . Red Amp. Ver . Green Amp. Ver . Blue Amp. Ver . Red Tilt Ver . Green Tilt Ver . Blue Tilt Left Horiz. R-G-3 Left Hori

41、z. R-G-4 Left Horiz. B-2 Sound Reject Sound Adjust ITEM No. LI L2 L3 L4 L5 L6 L7 L8 L9A B L10 LU LI 2 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L25 L26 L27 L28 L29 L30 L31 L32 L33 USE 1st Video IF 47. 25MC Trap 41. 25MC Trap 2nd Video IF Fil. Choke 3rd Video IF Fil. Choke RF Choke 4th Video IF

42、 41. 25MC Trap RF Choke 4. SMC Trap RF Choke Series Peaking Coil Shunt Peaking Coil Series Peaking Coil Shunt Peaking Coil Series Peaking Coil Series Peaking Coil Shunt Peaking Coll RF Choke 1st Sound IF 2nd Sound IF Quadrature Coil 1st Chroma Grid Coil 1st Chroma Bandpass Trans. Burst Amp. Trans. C

43、hroma Ref. Osc. Control Plate Coil Chroma Ref. Osc. RF Choke Series Peaking Coil Series Peaking Coll RF Choke RF Choke REPtACEMENT DATA RCA Victor PART No. 106385 105306 106391 106386 106387 100441 105294 105308 105295 78466 102201 104904 102196 104904 105311 105255 106377 100441 106381 106382 10638

44、3 107290 105213 105214 105216 107289 107296 102248 102248 100441 100441 PART No. 19-2864 19-4060 19-3180 19-3180 A 19-3180 19-3250 19-3250 . 19-3060 19-2864 17-6012 19-1000 19-3660 19-3660 19-2864 19-2864 Meissner PART No. 19-2864 19-4060 19-3180 19-3180 A 19-3180 19-3250 . 19-3250 . 19-3060 19-2864

45、 17-6012 19-1000 19-3660 19-3660 19-2864 19-2864 Merit PART No. BC-566 TV-193 TV-184 TV-184 A TV-184 TV-185 I TV-185 . TV-193 BC-566 BC-561 TV-205 TV-205 BC-566 BC-566 Miller PART No. 4622 6110 6180 6180 A 6180 6181 * 6181. 6110 4622 6023 4602 6146 6146 4622 4622 PART No. VP-B VP-5 A VP-5 VP-6 I VP-

46、6. NOTES 12uh 12uh 1.8uh 62uh (J ISOuh IBOuh 180uh 250uh 250uh 62uh 12uh Tap 2. 5SJ Sec. tap 1. 8 620uh l.luh 620uh 620uh 12uh 12uh * Parallel with Imeg resistor. i Parallel with 1800O resistor. Parallel with 8200n resistor. . Parallel with 15K resistor. Wound on Imeg resistor. Wound on 1800O resist

47、or. Wound on 820012 resistor. ) Wound on 15K resistor. TRANSFORMER (HORIZ. OSC.) ITEM No. L34 L35 DC RES. PRI. B1Q 491) SEC. REPLACEMENT DATA RCA Victor PART No. 105197 100300 Holldorson PART No. HS-7 Merit PART No. TV-165 Miller PART No. PART No. Thordarson PART No. HS-7 NOTES Horiz. Osc. Tap 29C!

48、Horiz. Waveform FILTER CHOKE ITEM No. L36 RATINGS CURRENT (Measured) .450A DC RES. 17B INDUCTANCE (0 CURRENT 1000 Vl .7 By. REPLACEMENT DATA RCA Victor PART No. 105195 Holldorson PART No. Merit PART No.PART No. Stancor PART No. Thordarson PART No. Triod PART No. C-40X n COILS (SWEEP CIRCUITS) ITEM N

49、o. L37 L38 L39 L40 L41 A B C USE Horiz. Linearity Right Horiz. Red-Green 1 Horiz. Blue 1 Right Horiz. Red-Green 2 Convergence Yoke Assy. Green Coil Blue Coil Red Coll REP RCA Victoi PART No. 105196 105065 105065 105066 106319 106319 106319 Holldorson PART No. Merit PART No. Miller PART No. ACEMENT DATA Rom PART No. Rogers PART No. Stancor PART No. Thordarson PART No. Triad PART No TRANSFORMER (POWER) ITEM No. Tl RATING PRE. 117V 3A SEC. 3 6.3V ISA SEC. 1 150V I. 7A (AC) SEC. 4 SEC. 2 1.3V 2A SEC. 5 REPLACEMENT DATA RCA Victor PART No. 1