Motorola-VT-73-TS-4J-late-Sams-71-12电路原理图.pdf

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1、PHOTOFACT* Folder MOTOROLA MODELS VT-73, VT-73A (Ch. TS-4J LATE) CHANNEL SELECTOR VOL CONT ON-OFF SW FINE TUNING CONTRAST CONT. TRADE NAME Motorola Model VT-73, VT-73A (Chassis TS-4J Late) MANUFACTURER Motorola Inc., 4545 Augusta Blvd., Chicago 51, Illinois TYPE SET Portable Television Receiver TUBE

2、S Sixteen POWER SUPPIY 110-120 Volts AC-60 Cycle TUNING RANGE-Channels 2 thru 13RATING: .95 Amp. 117 Volts AC Alignment Instructions Block Diagram Disassembly Instructions HV Rectifier Feedback Spring Adjustment Parts List and Description Photographs Cabinet-Rear View INDEX 6,7 Photographs (continue

3、d) 13 Capacitor Identification 10 Chassis-Top View Resistor Identification Trans., Inductor and Alignment Identification 10 14,15,16 Schematic 10 Tube Placement Chart Voltage and Resistance Measurements 11,18 3 12,17 4,9 2 b 8 I s 5 64 HOWARD W. SAMS AC Voltage measured at 1,000 age reodings. ohms.

4、urn us. _ . , j i i - j- 5. Front panels controls set at minimum. 2. Pin numbers are counted in a clockwise direc-. tion on bottom of socket. 3. Measured values ore from socket pin to com- mon negative unless otherwise stated. 6. WKere readings may vary according to the setting of the service contro

5、ls, both minimum and maximum readings are given. RadioFans.CN MOTOROLA MODELS VT-73, VT-73A (Ch. TS-4J LATE) UJ Q_ CO CO CO CJ RadioFans.CN FOCUS HORIZ. VERT. WIDTH HEIGHT HORIZ. VERT. BRIGHTNESS CENT. CENT. CONT. CONT. HOLD HOLD CABINET-REAR VIEW DISASSEMBLY INSTRUCTIONS 1. Remove 6 screws holding

6、back panel and power interlock and remove. 2. Remove push on type knobs and 2 felt washers on front of receiver. 3. Unplug speaker leads. 4. Remove picture tube socket. 5. Remove 4 chassis bolts from bottom of cabinet. 6. Slide chassis out rear of cab. 7. Remove 4 nuts and lock washers on speaker an

7、d remove. POSITIONING OF FEEDBACK SPRING ON KV. RECTIFIER Feedback to the grid of H. V. Oscillator tube Is obtained by a capacltive coupling device consisting of a coll mounted around the envelope of the High Voltage rectifier tube. The posi- tion of this spring is very critical and misplacement wil

8、l ,-esult In very low or no high volt- age. Two bottom edge of the spring should be 3/4 1/32 from the top of the tube base. PAGE 10 RadioFans.CN RF AMP. VI CONV. V2 1st VIDEO IF V3 2nd VIDEO IF V4 3rd VIDEO IF V5 o m 03 BLOCK DIAGRAM MOTOROLA VT-13 (31V1 ve/-iA ez-iA siaaow vioaoiow RadioFans.CN TUB

9、ES (SYLVANIA or Equivalent) PARTS LIST AMI CAPACITORS ITEM No. VI V2 V3 V4 V5 V6 V7 V8 V9 V10 VII V12 VIS V14 V15 V16 USE KF Amp. Converter 1st Video IF Amp. 2nd Video IF Amp. 3rd Video IF Amp. Video Amp. Sound IF Ratio Det. AF Amp. -Vert. Osc. Audio Output 1st xt. Ground Isolation .nt. Coupling ixe

10、d Trimmer :F Coupling ,F Cath. Bypass ;F Decoupling p ;F Coupling llxer Cath. Bypass )sc. Coupling )sc. Grid Cap. )sc. Feedback lecoupllng (F Fll. Bypass J3C Filter IF Bypass .st V. IF Decoupling 1st V. IF Grid Dec. 1st V. IF Fil. Byp. F Coupling 2nd V. IF Decoupling ind V. IF Fil. Bypass IF Couplin

11、g 5rd V. IF Decoupling 5rd V. IF Cath. Bypass 5rd V. IF Decoupling 5rd V. IF Fil. Bypass 5rd V. IF Decoupling * /idso Coupling /. Amp. Cath. Bypass W Bypass /ideo Coupling 3. IF Coupling ?lxed Trimmer 3. IF Decoupling 3. IF Cath. Bypass 3. IF Fll. Bypass Diode Load Cap. De-emphasis Audio Coupling AF

12、 Plate Decoupling Audio Coupling Output Plate Bypass Sync. Coupling Integrator Net. Vert. Sync. Coupling Vert. Feedback Vert. Discharge Vert. Sweep Coupling Linearity Comp. Voltage Divider Vert. Sweep Coupling Fixed Trimmer Hor. Osc. Grid Cap. Hor. Feedback CONTROLS ITEM No. R69 R70 R71 R72 R73 R74

13、Rv5 R76 R77 R78 R79 R80 R81 R82 R83 R84 RATING RESISTANCE 4.7 Meg. 4.7 Meg. 4.7 Meg. 4.7 Meg. 150K2 100S 338 1002 470K2 100K2 2.7 Meg. 2.7 Meg. 2.2 Meg. 2.2 Meg. 470KB 470KS2 WATTS 4 4 4 4 1 4 2 4 4 1 1 1 1 | 4 MOTORO p,yeT N 6R6446 6R6446 6R6446 6R6446 6R6398 6R6415 6R2036 6R3963 6R6046 6R6031 6R48

14、8057 6R488057 6R2011 6R2011 6R6377 6R6377 ITEM No. R1A B C R2 R3 R4 R5 R6 R7 R8A B R9A B R10A B RATING RESIST- ANCE 1 Meg. Shaft Switch 20002 1 Meg. 5 Meg. lOKffi 5 Meg. 20K2 2 Meg. Shaft Z Meg. Shaft 2.5 Meg Shaft WATTS 4 1 I 1 1 4 jjj 4 4 REPLACEMENT DATA MOTOROLA PART No. 18A90142 Not Req. Not Re

15、q. 18A780359 18A90147 18A90145 18A780098 18A90145 18A90144 18A478285 Not Req. 18A478286 Not Req. 18A90148 Not Req. IRC PART No. Q13-137 Not Req. 76-1 Qll-137 Q.ll-141 Qll-116 Qll-141 Q18-139X RQ t Q13-139XX RQ Q.ll-239 RQ t CLAROSTAT PART No. AM-63-Z KSS-3 SW-A M-61-S M-85-S M-27-S M-85-S AT-116 # I

16、NSTALLATION NOTES Volume Control Attach to R1A Per Instructions Attach to R1A Per Instructions Contrast Control, Tapped 10002 & 15002 Brightness Control Vert. Hold Control Horiz. Hold Control Vert. Size Control Horlz. Size Control Vert. Centering Control, Tapped 1 Meg. Horlz. Centering Control, Tapp

17、ed 400K2 & 1 Meg. Focus Control Note. Some models use 82: TRAt Use original Insulated spacer bushing and shaft with IRC RQ shaft. * Use original Insulated spacer bushing and shaft with AT control, no additional shaft is required. Lock ring should be removed from control to allow tongue of insulater

18、shaft to be inserted into slot. RESISTORS ITEM No. Rll R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 RATING RESISTANCE

19、 470K2 15K2 682 1000S! 10002 33K2 27002 10002 10K2 10 Meg. 47002 562 4700B 4.7 Meg. 4.7 Meg. 56ffl 47002 10002 10002 682 10002 2.2 Meg. 1 Meg. 68002 47002 1502 10002 1802 33K2 68002 68002 4.7 Meg. 220K2 220K2 470K2 3302 10K2 1 Meg. 1 Meg. 10K2 68002 47K2 10K2 3.3 Meg. 2.2 Meg. 100K2 22 Meg. 10 Meg.

20、6.8 Meg. 10 Meg. 6.8 Meg. 100K2 220K2 15K2 82002 47002 15K2 33002 WATTS 4 I I 4 4 4 4 2 2 JT I I I i I 1 4 1 4 1 i 1 4 i X X 4 REPLACEMENT DATA MOTOROLA PART No. 6R6377 6R6477 6R2039 6R6229 6R6229 6R6410 6R5577 6R6229 6R6320 6R2109 6R6080 6R5614 6R6080 6R6446 6R6446 6R5614 6R6080 6R6229 6R6229 6R203

21、9 6R6229 6R6433 6R6046 6RS690 6R5671 6R6229 6R5660 6R6410 6R6428 6R6428 6R6446 6R6407 6R6407 6R6377 6R6022 6R6320 6R6046 6R6046 6R6320 6R5691 6R6048 6R6320 6R6497 6X6433 6R6031 6R488252 6RS622 6R488157 6R5622 6R488157 6R6031 6R6407 6R6477 6R5610 6R6080 6R6477 6R5581 IRC PART No. BTS-470K BTS-1000 BT

22、S-1000 BTS-33K BTS-4700 BTS-4700 BTS-4.7 Meg. BTS-4.7 Meg. BTS-4700 BTS-1000 BTS-1000 BTS-1000 BTS-2.2 Meg. BTS-1 Meg. BT-2-6800 BT-2-4700 BTS-1000 BTS-33K BTS-6800 BTS-6800 BTS-4.7 Meg. BTS-230K BTS-220K BTS-470K BW-i-330 BTS-10K BTS-1 Meg. BTS-1 Meg. BTS-10K BTA-6800 BTS-47K BTS-10K BTS-3.3 Meg. B

23、TS-2.2 Meg. BTS-100K BTS-22 Meg. BTS-10 Meg. BTA-6.8 Meg. BTS-10 Meg. BTA-6.8 Meg. BTS-100K BTS-220K BTS-15K BTA-8200 BTS-4700 BTS-15K BTS-3300 IDENTIFICATION CODES ALL RESISTORS ARE * 10% UNLESS OTHFRWISE STATED. Ant. Isolation RF Grid RF Cathode Voltage Dropping RF Plate Decoupling Conv. Grid Conv

24、. Cathode Osc. Plate Osc. Grid Feedback 2C$ 1st Video IF Transformer Shunt 1st Video IF Cathode 1st Video IF Plate Bias Network n II 2nd Video IF Cathode 2nd Video IF Plate 2nd Video IF Decoupling 3rd Video IF Grid 3rd Video IF Cathode 3rd Video IF Decoupling Bias Network Video Amp. Grid Video Amp.

25、Plate Filter Sound IF Cathode See Note Sound IF Decoupling Balancing De-emphasis Ratio Det. Diode Load n ii n n AF Grid AF Plate ii ti Output Grid Output Cathode Current Limiting 1st Sync. Clipper Grid 1st Sync. Clipper Plate 2nd Sync. Clipper Grid 2nd Sync. Clipper Plate . Integrator fl Vert. Osc.

26、Grid Vert. Osc. Plate Feedback Vert. Amp. Grid Vert. Amp. Plate Vert. Amp. Grid Vert. Amp. Plate Voltage Divider n II AFC Coupling Transformer Shunt Horiz. Osc. Grid Horiz. AFC Filter Network Horiz. AFC Transformer Shunt Horiz. AFC Cathode ITEM No. Tl T2 T3A B RATING DC RESISTANCE PRI. 552 602 2552

27、2002 SEC. 1602 1702 MOTOROLA PART No. 24B 480209 24B480209 25B484819 2SB90138 TRA ITEM No. T4 RATING DC RESISTANCE SEC. 870ffl Tap j) 4. 52 PRI. 02 MOTOROLA PART No. 1X471212 TR ITEM No. T5 RATING IMPEDANCE PRI. 23002 SEC. 3.32 DC RES. PRI. 2452 SEC. .82 ITEM No. LI L2 L3 L4 L5 L6 L7 L8 L9 L10 Lll L

28、12 L13 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 ISA L25 L26 L27 L28 L29 L30A E C LSI L32 L33 L34 L35 L36 L37 USE Ant . Input Ant. Coll Ant. Coll Ant. Coll Ant. Coil Ant. Coil Ant. Coll Ant. Coil RF Coll RF Coil RF Coil RF Coil RF Coll RF Coil RF Coll RF Coil Osc. Coll Osc. Coil Osc. Coil Osc. Coil Os

29、c. Coll Osc. Coll Osc. Coll Osc. Coil RF Choke RF Choke 1st Video IF 2nd Video IF 3rd Video IF 4th Video IF RF Choke RF Choke Peaking Peaking Sound IF Ratio Det. Trans . Fll. Choke Fll. Choke Fll. Choke DC RES. PRI. 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 OS 02 02 02 02 02 02 02 .12 2.52 .52

30、 .12 .12 .IS 112 142 12 32 12 12 12 SEC. .42 . 4 2 RadioFans.CN CRIPTIONS RESISTORS CCONT. SPRAGUE PART No. 1FM-32 TVM-216 TVM-216 TM-15 TM-1 TVM-256 1FM-21 1FM-21 TM-15 IDENTIFICATION CODES AND INSTALLATION NOTES AFC Coupling Fixed Trimmer Fixed Trimmer Hor. Sweep Coupling Hor. Sweep Coupling RF By

31、pass n ii HV Filter Fixed Trimmer RF Bypass Filament Bypass Line Isolation ITEM No. R69 R70 R71 R72 R73 R74 RV5 R76 R77 R78 R79 R80 R81 R82 R83 R84 RATING RESISTANCE 4.7 Meg. 4.7 Meg. 4.7 Meg. 4.7 Meg. 150K2 1002 332 100S2 470K2 100K2 2.7 Meg. 2.7 Meg. 2.2 Meg. 2. 2 Meg. 470K2 470KS2 WATTS X X X 1 2

32、 4 I l i 1 1 i i REPLACEMENT DATA MOTOROLA PAST No. 6R6446 6R6446 6R6446 6R6446 6R6398 6R6415 6R2036 6R3963 6R6046 6R6031 6R488057 6R488057 6R2011 SR2011 6R6377 6R6377 IRC PART No. BTS-150K BW-1-100 BTS-470K BTS-100K BTS-470K BTS-470K IDENTIFICATION CODES Vert. Deflection Load ti it Horlz. Deflectio

33、n Load M n n HV Osc. Grid HV Os c. Cathode Parasitic Suppressor HV Decoupling Picture Tube Cathode Voltage Divider ii n n n ii n M If Isolation Note. Some models use 822 resistor in this application. INSTALLATION NOTES Control to R1A Per Instructions to R1A Per Instructions it Control, Tapped 10002

34、& 15002 less Control told Control Hold Control Size Control Size Control Centering Control, Tapped! Meg. Centering Control, Tapped 400K2 & 1 Meg. Control TRANSFORMER (SWEEP CIRCUITS) ITEM No. Tl T2 T3A B RATING DC RESISTANCE PRI. 552 602 2552 2002 SEC. 1602 1702 REPLACEMENT DATA MOTOROLA PART No. 24

35、B480209 24B480209 25B484819 25B90138 STANCOR PART No. CHICAGO PART No. MERIT PART No. NOTES AFC Coupling Trans. Hor. Block Osc. Trans, Hor. Output Trans. (Alt. TRANSFORMER C H.V.) OSC. 1C RQ shaft. .T control, no additional shaft is .low tongue of insulater shaft to be ITEM No. T4 RATING DC RESISTAN

36、CE SEC. 870S2 Tap 8)4.52 PRI. 02 REPLACEMENT DATA MOTOROLA PART No. 1X471212 STANCOR PART No. CHICAGO PART No. MERIT PART No. NOTES TRANSFORMER (AUDIO OUTPUT) I O *O IDENTIFICATION CODES |RS ARE t 10% UNLESS OTHERWISE STATED. ipping coupling IF Transformer Shunt T Cathode :F Plate -k IF Cathode :F P

37、late F Decoupling If Grid IF Cathode F Decoupling -k Grid Plate ithode See Note coupling i lode siting Clipper Grid Clipper Plate Jlipper Grid Clipper Plate Grid Plate Grid Plate Grid Plate /ider ng Transformer Shunt . Grid Filter Network Transformer Shunt Cathode 20? ITEM No. T5 RATING IMPEDANCE PR

38、I. 23002 SEC. 3.32 DC RES. PRI. 2452 SEC. .82 REPLACEMENT DATA MOTOROLA PART No. 25K470392 STANCOR PART No. A-3876 CHICAGO PART No. RO-2 MERIT PART No. A-2928 INSTALLATION NOTES COILS (RF-IF) ITEM No. LI L2 L3 L4 L5 L6 L7 L8 L9 L10 Lll L12 L13 L14 L15 L16 L17 LIB L19 L20 LSI L22 L23 L24 b25 L26 L27

39、L88 L29 L30A E C LSI L32 L33 L34 L35 L36 L37 USE Ant . Input Ant. Coil Ant. Coil Ant. Coil Ant. Coil Ant. Coil Ant. Coil Ant. Coil RF Coil RF Coil RF Coil RF Coil RF Coil RF Coil RF Coil RF Coil Osc. Coil Osc. Coil Osc. Coll Osc. Coil Osc. Coil Osc. Coil Osc. Coll Osc. Coll RF Choke RF Choke 1st Vid

40、eo IF 2nd Video IF 3rd Video IF 4th Video IF RF Choke RF Choke Peaking PeaKing Sound IF Ratio Det. Trans . Fll. Choke Fll. Choke Fll. Choke DC RES. PRI. 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 .12 2.52 .52 . 1 2 .12 .12 112 142 12 32 12 12 12 SEC. . 4 8 . 4 2 REPLACEM

41、ENT DATA MOTOROLA PART No. 24A482232 24K484872 24K478293 24K478294 24K478294 24A471374 24A471374 2 4 A 4 7 1 3 7 4 24K484873 24K478292 24K90185 24K90185 24A471373 2 4 A 4 7 1 3 7 3 24A471373 24A780142 24K484874 24K489003 2 4 K 4 8 9 0 0 4 24K489004 24A489188 24A485442 24A489067 24A485443 24A90064 24

42、A90193 24B90192 24A90197 24A90197 24A470314 24A90169 24A90169 24A780602 24A780601 24A470159 2 4 B 4 7 0 3 1 6 24A90064 24A90064 24A90064 MEISSNER PART No. NOTES Channels 2 and 3. Less Core. Channel 4. Less Core Channel 5. Less Core Channel 6. Less Core Channel 7. Loop of | 1 8 Bare Wire Channels 8 a

43、nd 9. Loop of 18 Bare Wire Channels 10 & 11. Loop of 18 Bare Wire Channels 2 & 3. Less Core Channel 4. Less Core Channel 5. Less Core Channel 6. Less Core Channel 7. Loop of 118 Bare Wire Channels 849. Loop of if 18 Bare Wire Channels 10 & 11. Loop of 118 Bare Wire Channels 12 & 13. Less Form and Co

44、re Channels 2 & 3. Less Core Channel 4. Less Core Channel 5. Less Core Channel 6. Less Core Channel 7. Less Core and Form Channels 8 & 9. Less Core and Form Channels 10 & 11. Less Core and Form Channels 12 & 13. Less Core and Form 1 Microhenry 2 Microhenries Less Core Less Core Les Core Less Core. P

45、art of Video Detector. Part of Video Detector. M ii n n Wound on 18K2 resistor. 1 Microhenry 1 Microhenry 1 Microhenry w PAGE 15 RadioFans.CN PARTS LIST AND DESCRIPTIONS (Continued) SPEAKER ITEM No. SP1 SP2 RATING FIELD RES. PM CONE DIA. 5 7/8 V. C. IMP. 3.3S2 V. C. DIA. 3/4 REPLACEMENT DATA MOTOROL

46、A PART No. 50B471219 JENSEN PART No. ST-110 MOD.P6-V GUAM PART No. 6A15 NOTES SELENIUM RECTIFIER ITEM No. Ml M2 RATING CURRENT .108A .108A REPLACEMENT DATA MOTOROLA PART No. 48B470395 T 48B470395 t NOTES T Alternate Part f 48B471S50 MISCELLANEOUS ITEM No. MSA B M4 PART NAME Channel Selector SW. Chan

47、nel Selector SW. Ballast Tube Crystal Core Core Core Core Core Coil Form Detector Assy. Cabinet MOTOROLA PART No. 1X471377 1X489168 17A485459 48A9017S 46A470302 46A70023 46A470310 4 6 K 4 8 0 2 5 6 46A478342 14K485465 1X482133 16F7804SO NOTES 3 Section, with shield plate and RF and Ant. Coil Loops .

48、 3 Section, with shield plate, RF and Ant. Coll Loops, and Ose. trimmer. Video Detector Sylvania 1N34 Iron. and Screw L34 secondary Iron and Screw L34 primary Iron and Screw L29, L30A, L33 and Top of L27 Iron and Screw Bottom of L27 Brass and Screw Ant. RF and Osc. Coils L21, L22, L23 and L24. Inclu

49、des L30B, L30C, MS, 6800S resistor, 330fi resistor and 8MMF, 100MMF and 15MMF capacitors. PAGE 16 RadioFans.CN CHASSIS BOTTOM VIEW-TRANS., INDUCTO PAGE 4 RadioFans.CN FOR AND ALIGNMENT IDENTIFICATION PAGE 9 RadioFans.CN CHASSIS BOTTOM VIEW-CAP PAGE 18 RadioFans.CN PACITOR IDENTIFICATION PAGE 1 1 RadioFans.CN CHASSIS BOTTOM VIEW-RES PAGE 12 RadioFans.CN R43)(R44) -*S S :SISTOR IDENTIFICATION PAGE 17 RadioFans.CN