Motorola-VT105-Sams-67-13电路原理图.pdf

PHOTOFACT* Folder MOTOROLA MODELS VT1O5, VT1O5M, VK1O6, VK1O6B, VK1O6M, VT1O7, VT1O7M CHANNEL SELECTOR VERT. HORIZ. HOLD CONTRAST BRIGHTNESS VOL. TONE ON-OFF SW. MOTOROLA MODEL VK-106 TRADE NAME Motorola Models VT-105.VT-105M.VK-106,VK-106B.VK-106M,VT-107,VT-107M, (Ch. TS-9,T3-9A,TS-9B,TS-9C) MANUFACTURER Motorola Inc., 4545 Augusta Blvd., Chicago, Illinois TYPE SET Television Receiver TUBES Twenty-Three (Ch. TS-9,TS-9B), Twenty-One (Ch. TS-9A), Twenty-Two (Ch. TS-9C) POWER SUPPLY 105-125 Volts, 60 Cycles TUNING RANGEChannels 2 thru 15. ACRATING: 2.1 Amps. 117 Volts Alignment Instructions Block Diagram Chassis Variations Disassembly Instructions Horizontal Sweep Adjustments Parts List and Description Photographs Cabinet-Rear View Capacitor Identification Chassis-Top View INDEX Page 6,7 Photographs (continued) 14 Oscillator Alignment Points RF Alignment Points Resistor Identification 16 15 15 15 ,17,18,19 19 12,21 3,11 Trans., Inductor and Alignment Identification Schematic Schematic (Chassis Variations) Tube Placement Chart Voltage and Resistance Measurements Page 7 10 13,20 4,9 2 22 5 8 28 oo ?* 1001 RadioFans.CN 12AU712AU7 J I RadioFans.CN MOTOROLA MODELS VT1O5, VT1O5M, VK1O6, VK1O6B, VK1O6M, VT1O7, VT1O7M M3IA dOl SISSVHO RadioFans.CN CHASSIS BOTTOM VIEW-TRANS., INDUC PAGE 4 RadioFans.CN UCTOR AND ALIGNMENT IDENTIFICATION PAGE 9 RadioFans.CN VERT OSC. SYNC.AMP/ V8 VERT. OUTPUT SYNC SEP. U2AU7 TUBE PLACEMENT CHART PAGE 5 RadioFans.CN ALIGNMENT INSTRUCTIONS VIDEO IF ALIGNMENT Connect the negative terminal of a -3 volt battery to the mixer grid at the Junction of R12 and R13. Connect the positive terminal to chassis ground. Set the contrast control to give -5 volt bias. (Measure from center terminal to chassis.) DUMMY ANTENNA .01MFD .01MFD .01MFD .01MFD .01MFD .01MFD SIGNAL GENERATOR COUPLING High side to pin 5 (Grid) of 6J6 (V2). Low side to chassis. tl tl SIGNAL GENERATOR FREQUENCY 23.6MC 26.4MC 22.9MC 25.7MC 21.9MC 24.7MC CHANNEL Any n CONNECT VTVM C Probe to Point Common to ssis. tt n ADJUST Al AS A3 A4 AS A6 REMARKS Adjust for maximum deflection. n n n tt n n tl n n tl n n Adjust for minimum deflection. Repeat step 4. Adjust for maximum deflection. OVERALL VIDEO IP RESPONSE CHECK Connect the synchronized sweep voltage from the signal generator to the to give horizontal deflection. DUMMY ANTENNA .01MFD SWEEP GENERATOR COUPLING High side to pin 5 (Grid) of 6J6 (V2). Low side to chassis SWEEP GENERATOR FREQUENCY 24MC (10MC Sweep) MARKER GENERATOR FREQUENCY 21.9MC 26.4MC TMAMKIFI CONNECT CHANNEL SCOPE Any Vert . Amp . to Point Low side to chassis. horizontal amplifier of the oscilloscope ADJUST REMARKS Check to see that response curve Is similar to that of Fig 1. 4. SMC TRAP ADJUSTMENT There .are three possible methods of adjusting this trap. One method Is done by tuning In a normal picture and adjusting trap A7 so the stippled or half-tone effect In the picture Is eliminated or minimized. The fine tuning control should be set on the center audio peak while this adjustment Is being made. Another method Is by feeding a 4. SMC unmodulated signal to pin 7 of SALS (V7) video detector and connecting an RF type electronic voltmeter across R41 (2nd video amp. grid circuit). Adjust A7 for minimum. The third method of using an oscilloscope with a detector probe may be accomplished as follows: DUMMY ANTENNA .01MFD SWEEP GENERATOR COUPLING High side to pin 7 of SALS (V7). Low side to chassis. SWEEP GENERATOR FREQUENCY Off MARKER GENERATO FREQUENCY 4. SMC (400% Mod.) r-UiKiwei CONNECT CHANNEL SCQpE Any Vert. Amp. thru detector probe to pin 6 (plate) of 12AU7 (V8). Low side to chassis. ADJUST REMARKS A7 Adjust for minimum amplitude. SOUND IF ALIGNMENT Chassis TS-9C contains an additional sound IF stage but the transformer added Is fixed tuned and does not necessitate a change In alignment procedure. DUMMY ANTENNA .01MFD SIGNAL GENERATOR COUPLING High side to pin 5 (Grid) of 6J6 (V2). Low side to chassis SIGNAL GENERATOR FREQUENCY 21.9MC CHANNEL Any CONNECT VTVM DC Probe to Point <J Common to chassis. ADJUST A8,A9 REMARKS Adjust for maximum deflection. Detune the discriminator transformer secondary by turning All out approximately 2 full turns. .01MFD .01MFD High side to pin 5 (Grid) of 6J6 (V2). Low side to chassis n 21.9MC Any Probe to Point Common to ssis . A10 All Adjust for maximum deflection. Adjust for zero reading. A positive and negative peak Is obtained on either side of the correct setting. RF ALIGNMENT Connect the signal generator to the antenna terminals of the receiver through two resistors. The low side of the generator should be connected through 1502. The high side should be connected t hrough a resistor of 1502 minus the signal generator Impedance. For Instance, If the generator Impedance is 502, the resistor should be 1002. Leave the fine tuning control set at the midpoint of its electrical range during the oscillator and RF alignment. Set the contrast control for -3 volts bias. (Measured from arm of control to chassis). The antenna adjustments on the high band Is made at 195MC for channels 7,8,9,10,11,12 and 13. This adjustment has enough bandwidth to work effectively over all these channels. The low band channels have Individual antenna adjustments . DUMMY ANTENNA See Instruc tlons above n SIGNAL GENERATOR COUPLING Across antenna terminals . SIGNAL GENERATOR FREQUENCY 215.75MC 209 .75MC 203.75MC 197.75MC 191.73MC 185.75MC 179.75MC 87.75MC 81.75MC 71.75MC 65.75MC 59.75MC CHANNEL 13 12 11 10 9 8 7 6 5 4 3 2 CONNECT VTVM Probe to Point Common to assis. ADJUST A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 REMARKS Adjust for zero reading. A positive and negative reading will be obtained on either side of the correct setting. n 9. 10 11 12 13. 14. PAGE 6 RadioFans.CN ALIGNMENT INSTRUCTIONS CCONTJ 15. 16. 17. DUMMY ANTENNA 11 SIGNAL GENERATOR COUPLING n SIGNAL GENERATOR FREQUENCY 214MD 208MC 202M3 196MC 190ft 184 MC 178MC 86MC 80MC 70MC 64HC 58MC 195MC 86fC 80MC 70MC 64MC 58MC CHANNEL 13 12 11 10 9 8 7 6 5 4 3 2 10 6 5 4 3 2 CONNECT VTVM n ADJUST A24, A25 A26.A27 A28.A29 A30,A31 A32.A33 A34.A35 A36.A37 A38.A39 A40,A41 A42.A43 A44.A45 A46,A47 MB 149 150 151 152 153 REMARKS Unscrew one adjustment until the circuit Is appreciably detuned. Adjust the second slug for maximum deflection. Then adjust the first slug for maximum. Do not retune the other slug. Adjust for maximum deflection. Adjust for maximum deflection. A49 Is omitted on TS-9C. Adjust for maximum deflection. FIG. I 22 00 V3 Si I! en OSCILLATOR ALIGNMENT POINTS A13 PAGE 7 RadioFans.CN VOLTAGE AND RESISTANCE MEASUREMENTS m oo VOLTAGE READINGS Itflm V 1 V 2 V 3 V 4 V5 V 6 V7 V 8 V9 V 10 V 1 1 V 1 2 V 13 V 14 V 15 V16 V17 V 18 V 19 V20A V21A V24 Tub. 6AG5 6J6 6BA6 6BA6 6BA6 6AG5 6AL5 12AU7 6AU6 6AU6 6AU6 6T8 6V6GT 6SN7GT 6SN7GT 6SN7GT 6BG5G 5V40 1B30T 5U4G 5I3GT 10BP4 Pin 1 -3.4VDO 150VDC -20VDC -20VDC 0V 0V 0V 125VDC 0V 0V -.5VDC -.7VDC 0V OV 4ov 4-.7VDC 43VDC 0V Pin 2 ov 87VDC OV OV OV 1VDC -1.2VDC -.5VDC OV OV OV -.8VDC 6. 3 VAC 460VDC 4360VDC 4133VDC OV 390VDC Pin 3 6.3VAC OV 6.3VAC 6.3VAG 6.3VAC 6.3VAC 6 .3VAC OV 6 .3VAG 6.3VAC 6 .3VAC -9 .3VDC 270VDC 40V 410VDC 419.5VDC 417VDC 411VDC 43VDC Pin 4 ov 6.3VAC OV OV OV OV OV OV ov ov - OV ov 270VDC 450VDC 4-28VDC -41VDC 4320VDC 310VDC Pin 5 245VDC -3.4VDC 118VDC 118VDC 118VDC 60VDC OV OV 110VDC 120VDC 50VDC 6 .3VAC OV I 225VDC 480VDC 4150VDC 4140VDC 4 .5VDC 43VDC Pin 6 245VDC 5-1VDC 118VDC 118VDC 118VDC 80VDC 60VDC 4155VDC 110VDC 120VDC 50VDC -13VDC 300VDC 468VDC 40V 40V 4370VDC 310VDC Pin 7 OV ov .1VDC .1VDC 1VDC 1VDC -.1VDC *.5VDC 5VDC 1VDC OV OV OV OV OV OV 6. 3 VAC Pin 8 45VDC -.1VDC 6.3VAC 6.3VAC 6.3VAC 4270VDC 390VDC Pin? 6. 3 VAC 50VDC TUP (JAP * * DO NOT MEASURE 0V 0V 160VDC 325VDC 175VDC 93VDC 325VDC OV PIN 10 390V DC 380VAC 240VAC PIN 11 160VDO 280VDC OV PIN 12 160VDC 380VAC 240VAC 57VAC OV 325VDC 187VDC 4 Measured from pin 6 of V15. Taken with vacuum tube voltmeter. Do not measure. RESISTANCE READINGS Item V 1 V 2 V 3 V 4 V5 V 6 V7 V 8 V9 V 10 V 1 1 V 12 V13 V14 V 15 V 16 V17 V18 V 19 V20A V21A V24 Tub* 6AG5 6J6 6BA6 6BA6 6BA6 6A05 6AL5 12AU7 6AU6 6AU6 6AU6 6T8 6V6GT 6SN7GT 6SN7GT 6SN7GT 6BG6G 5V4G 1B3GT 5U40 5Y3GT 10BP4 Pin 1 esoKffi tlOKffi 10K2 F5KS2 .12 .22 Offi I5.2K2 .12 10K2 100K2 100K2 Offi 4100K2 43.3Meg. 4750K2 4152 Inf. Inf. Inf. Inf. T15K2 Pin 2 Offi tlSKffi 02 02 Offl 2002 2 Men. 1.2 Meg. 02 02 02 100K2 .12 T35KS2 T1.5K2 tSSKffl 02 #02 Inf. 10K2 24K2 I6.2K2 Pin 3 .12 02 .12 .12 .Iffi .12 .12 02 .12 .12 .12 160K2 T1.2K2 40SZ 45.5K2 46002 4280K2 41002 4152 Inf. lOKffi Inf. PIN 10 #02 Pin 4 02 .12 Offi Offl 02 Offi Offi 02 02 Offi 02 02 T12K2 2 Meg. 4 1 Meg 4200K2 18002 t95ffi Inf. 480ffi 480ffi PIN 11 (15K2 Pin 5 T20KS2 1 Meg. tl.2Kffi +1.2K2 41.2K2 411Kffi 02 02 42K2 410002 410K2 .12 470Kffi T2K2 #3.8Meg. #140K2 41 Meg. 4152 Inf. lOKffi Inf. PIN 12 tlSKffi Pin 6 teoKffi 13K2 41.2K2 41.2K2 41.2K2 46K2 411Kffi T6.2K2 42K2 410002 410K2 47K2 T8502 47.5KB 402 402 T1102 T952 Inf. 4702 4602 Pin 7 Offi Offi 682 682 682 2002 5K2 1.2 Meg. 1002 1002 02 02 02 02 02 02 .Iffi 41 Meg. Inf. 4402 Inf. Pin 8 3152 10 Meg. 5002 .12 .12 .12 TlOKffi #02 Inf. 10K2 24K2 Pin 9 .12 T 1 Meg, TUP UAP #2002 TUP GAP #3602 t Measured from pin 2 of V20 t Measured from pin 2 of V21 t Measured from pin 8 of VIS 4 Measured from pin 6 of V15 1. DC Voltage measurements are at 20,000 4. Line voltage maintained at 117 volts for volt- ohms per volt; AC Voltage measured at 1,000 age readings, ohms. 5. Front panels controls set at minimum. 2. Pin numbers are counted In a clockwise direc- tion on bottom of socket. 3. Measured values are from socket pin to com- mon negative unless otherwise stated. 6. Where readings may vary according to the setting of the service controls, both minimum and maximum readings ore given. RadioFans.CN C H A S S I S F R O N T RF ALIGNMENT POINTS PAGE 10 RadioFans.CN CHASSIS-TOP VIEW PAGE 1 1 RadioFans.CN 39Vd SISSVHO RadioFans.CN $33) (C34) (C35) (C36) (C37) v_y viy v_/ vijx v_y :APACITOR IDENTIFICATION PAGE 21 RadioFans.CN R72)(R75)(R73) CHASSIS BOTTOM VIEW-R PAGE 20 RadioFans.CN MOTOROLA MODELS VT1O5, VT1O5M, VK1O6, VK1O6B, VK1O6M, VT1O7, VT1O7M Q 6 Ld Q cr O CO CO LJ cr RadioFans.CN m A.F.AMP. 1/2 V12 AUDIO OUTPUT VI3 1st SOUND I. P. V 9 2nd SOUND I.F. V10 LIMITER VI1 DISCRIMINATOR 1/2 VI2 1st VIDEO I.F. V3 2nd VIDEO I.F. V4 3rd VIDEO I.F. V5 4th VIDEO I.F. V6 R.F.AMP. CONVERTER VIDEO DET. 1/2 V7 SYNC. CLAMPER 1/2 V 7 SYNC. AMP. 1/2 V14 SYNC. SEP. 1/2 V14 VERT. OSC 1/2 VI5 VERT. OUTPUT 1/2 VI5 HOR. OUTPUT DAMPER L.V.RECT. L.V.RECT. HOR.A.F.C. 1/2 V16HOR. OSC 1/2 V16 BLOCK DIAGRAM RadioFans.CN BRIEF DESCRIPTION OF CHASSIS VARIATIONS CHASSIS TS-9. Twenty-two tubes plus 10 picture tube employing four type 25Z6GT tubes operating In a bridge circuit to supply B power. CHASSIS TS-9A. Same as TS-9 except a conventional power supply circuit Is used having 5Y3GT and 5U4G tubes. The power transformer also differs from the one used In chassis TS-9. Twenty tubes plus 10 picture tube. CHASSIS TS-9B. Same as TS-9 except that the 1st Sound IF Amplifier Is also used as a reflex amp- lifier for audio to obtain greater audio amplification. Twenty two tubes plus 10 picture tube. CHASSIS TS-9C. Similar to TS-9A except that an additional Sound IF stage was added to reduce variations in sound level with setting of contrast control. Twenty-one tubes plus 10 picture tube. HORIZONTAL OSCILLATOR ADJUSTMENT Adjust the horizontal oscillator coil slug (B4) so the picture will lock-In over the whole range of the horizontal hold control. If this cannot be done, back* off the horizontal locking trimmer (B5) 2 1/E to 3 turns from tight or until it is possible to sync the picture over the whole range of the horizontal hold control. (If this is not possible, the receiver is defective and will require tube and circuit component checks.) When this has been done, turn the horizontal hold control to the extreme counter-clockwise position. Back off trimmer B6 (Horizontal frequency trimmer) until the plctue tends to slip to the right; then turn the horizontal hold control clockwise until picture syncs in. Under these conditions, it should be possible to switch channels without losing synchroni- zation. 55 00 *3 )4 1467-005 P688-05 1468-0001 146 P68 P68 P68 8-OOC 8-002 8-OOE 8-OOE 25 1467-005 P48 P48 146 8-35 8-1 8-001 1468-0004 1468-001 P288-05 P488-02 P488-25 L468 00025 L467-002 P688-1 1468-0004 J488-25 P688-05 P1088-03 P688-1 P488-25 1468-001 CORNELL- DUB1LIER PART No. IV 115D15D5 5W5Q25 1W5D1 5W5Q25 5W ID 5W GT ID GT ID 5W GT GT GT 5T25 5D1 5T25 4PI 5D5 2S1 5D5 5T4 6D2 6D5 6D5 1D5D5 GT6S5 SW5T1 5W GT GT GT 5T25 6D2 6D5 6D5 1D5D5 GT GT 1W 4S5 4P1 5D1 5W5T4 1W5D1 GT2S5 GT2S2 GT2P25 ci icmoc: OWOliiD 1W5D2 GT6P1 5W5T4 GT4P25 GT6R5 GT16S3 GT6P1 GT2P25 * Used only in models TS-9A and TS-9C t Used cnly in t Not used in Used c # Used o f Not us i Used o nly in nly in ed in nly in * Not used in ITEM No. R1A Q R2A R3A R4 R5 R6 RATING RESIST- ANCE 1 Meg. 1 Mep 10K2 100K2 1 Meg . 30K2 2 Meg. 5K2 10002 ITEM No. R7 R8 R9 RIO Rll R12 R13 R14 R15 R16 R17 R18 R19 R21 R22 R23 R24 R25 R26 R27 R28 -129 R30 R31 R32 R33 R34 R35 R36 R37 WATTS i 2 t 1 2 J _ ! 2 J 4 mDdels TS-9 ani TS-9B model TS-9C m m mo m Ddel TS-9 3del TS-9 iel TS-9 )del TS-9 C B model TS-9B CO vvy REPLACEMENT DATA MOmrvDAr n PART No. 18A489005 18 18 A484072 A484073 18A484199 18A484800 18K780354 ID/ PART No. Qll-139 411-114 RATING RESISTANCE 2202 3902 470K2 18K2 82K2 470K2 470K2 15KS2 15K2 82002 10002 100K2 32002 22K2 10002 10002 1 Meg. 47K 382 33K2 682 47002 2208 47002 47002 22KS2 4700S! 1.5 Meg. 220K2 470K2 WATTS i T 2 1 i X 1 i i 5 f I i f I i i PAR M-83- M-19- 10-1C RES REPLACEMENT DATA MOTOROLA PART K 6R6270 6R6554 6R6377 6R476014 6R5575 6R6377 6R6377 6R2119 6R21 19 6R5610 6R6301 6R6031 6R2004 6R6007 6R6397 6R6301 6R6301 6R6004 6R6056 6R6007 6R6410 6R6007 6R6080 6R63933 6R6080 6R6080 6R6397 6R6080 6R3966 6R6407 6R6377 0. IRC PARTINO. BTS-470K BTA-82K BTS-470X BTS-470K BTS-1000 BT3-100K BTS-8200 BTS-22K BTS-1000 BTS-1000 BTS-1 Meg. .BTS-47F BTS-33K BTS-4700 BTS-4700 BTS-4700 BTS-1.5Meg-5 BTS-320K BTS-470K PAGE 16 RadioFans.CN PARTS LIST AND DESCRIPTIONS CAPACITORS CCONTO NOTES sis TS-9C only. sis TS-9A and TS-9C. sis TS-9 and TS-9B. sis TS-9A and TS-9C. sis TS-9 and TS-9B. sis TS-9 and TS-9B. sis TS-9 and TS-9B. r Electrolytic Capacitors. 1AOUE CTNo ,-54 ,-40 ,-40 1-6 gg 401 ,-40 16 -5 ,-41 L-21 1-31 1-21 1-21 1-21 1-31 415 -415 425 425 1-21 1-21 425 1-21 -21 1-21 -21 1-21 1-21 1-21 -21 -21 1-21 1-21 -21 41 425 15 2 1 15 -21 425 -21 -21 -21 -21 -25 IDENTIFICATION CODES AND INSTALLATION NOTES Filter Filter Filter Filter Filter * Filter Vert. Output Cath. Byp. Filter * Vert. Output Dec. A Decoupling Output Cath. Bypass a Filter * Filter A Filter filter 31as Filter Filter T Decoupling * Output Cath. Bypass Vert. Output Decoup. T Hor. Sweep Coupling 1 S. IF Decoupling * rixed Trimmer F Coupling Bias Filter # HF Screen Bypass