Motorola 14T3 Скачать руководство пользователя

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Scanned by mbear2k - Jan 2012

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Содержание 14T3

Страница 1: ...ers V 13 6SN7GT Vertical Sweep Generator V 14 6W6GT Vertical Sweep Output V 15 6AL5 Phase Detector v 16 6SN7GT Horizontal Oscillator v 17 6BQ6GT Horizontal Output High Voltage Generator V 18 6W4GT Damping Diode v 19 1B3GT High Voltage Rectifier V 20 l4BP4 or 14CP4 Picture Tube rectangular v 21 I 5U4G Low Voltage Rectifier HIGH VOLTAGE WARNING Operation of this receiver outside its cabinet or with ...

Страница 2: ...smitters a dipole and reflector will prove satisfactory Since such an antenna has a relatively small band coverage a special antenna covering all twelve television channels should be used if it is desired to receive stations on channels of widely separated frequen cies I ocation of the antenna should be decided from the stand point of maximum signal pick up ln general the antenna should be broadsi...

Страница 3: ...ing lever HORIZONTAL HOLD ADJUSTMENT The HORIZONTAL HOLD control should have a sync range of approximately 180 If the control is too critical adjust as follows l Short out HORIZONTAL OSCILLATOR coil L 23 This may be done with the chassis in the cabinet by shorting pins 3 and 8 of the test socket on chassis rear 2 With the centering lever move the picture to the left so thatthe rightedge of the ras...

Страница 4: ...tube have shifted in transit or if for any reason these parts have been removed and replaced it is best to do a complete job of repositioning See Figure 3 The starting point is the position of the pic ture tube It should be adjusted so that the distance from the center of the tube face to the front edge of the chassis is l The clamp on the front of the tube should then be tightened The picture tub...

Страница 5: ...e meter connections as neces sary Fo r proper balance of the ratio detector sys tem the voltage in each direction should be approxi mately equal lf not check the tuning of L 20 and the primary and secondary of T 3 the ratio detec tor If nec s sary replace the ratio detector tube V 9 6ALS It is d sirable to calibrate the genera t Jr on a station signal This may be done by nulling the secondary on a...

Страница 6: ...y of the sweep to about 24 6 me and ad just initially for a sweep deviation of approximately 12 me However a sweep of from 8 to 10 me may be found better for overall alignment 4 Using R 26 lOOK as a decoupling resistor connect the scope to pin 4 of test socket If a stronger out put is desired connect the scope between the pic ture tube cathode and chassis The curve seen at this position will be th...

Страница 7: ... it is absolutely necessary to obtain the proper curve A slight dip not exceeding 10 is permissible in the mixer transformer re sponse curve BANDWIDTH The bandwidth may be determined by connecting an AM generator to the mixer grid With the generator frequency at Z4 6 me adjust the output for 1 volt reading on a VTVM 21 9 27 3 FIGURE 6 IF RESPONSE CURVE 21 9 27 3 FIGURE 7 OVERALL RESPONSE CURVE FRO...

Страница 8: ...I 71 75 93 65 5 76 82 77 25 81 75 103 65 6 82 88 83 25 87 75 109 65 7 174 180 175 Z5 179 75 152 45 8 180 186 181 25 185 75 158 45 9 186 192 187 25 191 75 164 45 10 192 198 193 25 19 7 75 170 45 11 198 204 199 25 203 75 2 25 65 12 204 210 205 25 2 09 75 231 65 13 210 216 211 25 215 75 237 65 ANTENNA RF ALIGNMENT PROCEDURE 1 Remove high voltage generator tube V 17 6BQ6GT from its socket and replace ...

Страница 9: ... sweep Keep the output low enough to show no evidence of limiting in the overall response curve NOTE Before aligning the oscillator section make FIGURE 11 RF RESPONSE CURVES CHANNELS 7 13 certain the 3 3 microhenry choke L 8 in the mixer grid is dressed away from the 2 mmf ca pacitor C 16 tied to the same grid 8 Introduce a marker corresponding to the sound car rier of channel lZ Z09 75 me 9 Adjus...

Страница 10: ...are electrically identical ex cept for the Vertica l Sweep Generator V 13 l he TS ll4 uses a 6SN7GT instead of the 12AU7 of the TS ll5 This change necessitated changing grid resistor R 63 from 330K 10 curve toward video marker IMPORTANT Since the coils are in series the proper alignment of channel 6 will simplify the phasing of the channels to follow 19 Adjust channels 5 and 4 so that the sound ma...

Страница 11: ...Paper 01 mr 6oov Paper 005 mr 6oov Ceramic tubular 270 mmf 500V Mica 680 mmf 500V Paper 005 mf 6oov Paper 1 lllf 200V Paper 1 lllf 6oov Paper 1 mf 60ov Ceramic tubular 18o mmf 3000V Paper 1 mf 6oov Ceramic tubular 60 mmf 1500V C 85 8R9874 in deflection yoke Paper 1 m r 6oov List 30 30 30 30 20 30 30 30 20 30 30 30 30 30 25 25 25 20 30 25 25 30 30 20 20 35 25 25 45 30 20 20 20 25 25 20 20 25 25 25 ...

Страница 12: ...1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 20 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 i oo 1 00 1 00 eo 1 00 1 00 1 00 eo 1 00 1 00 1 50 1 00 1 00 1 00 eo 1 00 4o 1 55 35 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 1 00 eo 1 00 1 00 1 00 15 1 45 Re f No Part No R 94 R 95 R 96 R 97 R 98 R 99 6R5690 6R5721 6R5721 6R5577 6R6328 17K701353 Transformers Description 6800 1o 31 150 000 1...

Страница 13: ...T 1 priJDB rY 05 15 15 6o 15 25 05 05 20 50 25 10 15 05 20 25 15 15 05 15 10 Part 2 461 471143 42A76244 46 6 700090 5A79o684 14A780184 14K791892 14K87179 487655 489751 482640 487688 2A790191 2A791404 2A47oo49 2B70703 287093 287022 287003 2S7051 287oo4 64A7oo690 28K471323 641 700748 64A700745 351 701379 35K700166 64B701162 9a54664 5smo 5S7728 9A22367 5S7703 5S6842 5S7700 51 71246 5S2815 5S8497 5S77...

Страница 14: ...71577 481720 481719 4A791447 487569 Description Washer insulating L 27 mtg doz Washer flat 3 8 x 156 x 030 atl ced pl pix tube rear support brkt mtg per c Washer flat 3 8 x 40 x 030 cad pl pix tube grounding spring mtg per c Washer insulating T 7 mtg Washer flat 5 16 x 145 x 027 cad pl V 14 V 16 socket mtg per c MODEL 14 1 3 CABINET PARTS l X192494 16B700099 35A790097 1X701529 7A701358 l6F701061 4...

Страница 15: ...a8ber1 tlat 5 16 X 130 X 025 bre l Dkl k clip tg per c 50 W1Ddow picture tube rectaiJ ular 6 30 Bn T Ill mN lA K DBL TA 6 lX791900 2lR2163 21R2764 N7917l S 211A791969 29A 79l 60B 3l K34326 TA 6 SiiiSle Loop AnteJma complete Capacitor llica 6 t 300V Capecitor llica 18 r 300V Coil UlteiiDa loediDg 011 teraii l etrip Coil hiP trequeac y Ccmpellll ting IA g IIIJ8d e doc Strip tenlinal 2 ins 3 lnd 3 8 ...

Страница 16: ... 8 _ BOTTOM VIEW OF CHASSIS e 8 I NOTE STATION SELECTOR SWITCH Sl SHOWN IN CHANNEL NO 2 POSITION IRON TUNING CORES T BRASS TUNING CORES 10 1000 Itt L4C SIOO I0 002l_ Rl ce f 5600 RIO 1500 R9 I L COl Scanned by mbear2k Jan 2012 ...

Страница 17: ... C55 II II II r 1 1 I I I I I I I I I eeoo1 R43 1 I I 20J IF 270K 470K R47 300 ll A CIIC 011 call _____ J ____ 500 5800 R28 l F TEST POINT 39 SOCKET F T VIEW lOOK I 1 R J Jr V es TELEVISION CHASSIS TS 1 14 Date 13 July 1950 Diag No 63E701926 0 1000 1141 2 2 LSI TO POWER SUI PL f LU V7 6CB6 VIDEO AMP IN SOME SETS 2PK 1135 Scanned by mbear2k Jan 2012 ...

Страница 18: ...0 ONE THOUSAND OttMS CA ACITOIIS INDICATED IN MICROIIICIIOP AIIADII UNLESS OTHt R ISt t CIP IED INDUCTANCU INDICATED IN MICIIOHENIIIES UNLESS OTHEIIWISE snCIP It D CAUTION DO NOT ATTEMPT VOLTAGE READINGS ON HIGH VOLTAGE RECTIFIER OR SCDn REAOINIIS ON 1101 PLATE WITH OIIOINARY EQUIPMENT 117 VOLTS 11 60 CYCLE A C ONLY SAFETY INTERLOCK X T7 Lp r 111 z Q csa F OR l4oov CI6A V21 5U4G L V RECT REO rT r ...

Страница 19: ...l M76V V17 __ l6BO GT Cll ifw I IZOK RII IDOl 1111 HORIZ HOLD 680 C7I 1500 1111 47 1193 1r r r _jrlr 11100 1124 RED lOOK 11211 r 1 511fG HOIIIZ 111 7 05G Tl O C IISTANCES TERM I RES I TO 2 I OHIII 2 TO 3 10 OHMS 3 TO 4 OHIII 4 TO 5 TO I I I V20 14BP4 OR 14CP4 PICTURE TUllE DIAG NO 63E701926 0 IIIU 1171 Scanned by mbear2k Jan 2012 ...

Страница 20: ...A470789 65K702901 Coils L 16 24K701017 L 17 24K701017 L 19 24K703073 L 21 24K701019 Resistors R 7 6R5659 R 32 R 36 R 37 R 68 R 71 6R476012 18A702403 18A702407 Molded 6 mmf recommended replacement value Ceramic tubular 1000 mmf Ceramic tubular 1000 mmf Ceramic disc 10 000 mmf Ceramic disc 10 000 mmf Ceramic disc 5 000 mmf Fuse 3 8 amp glass tubular with leads Compensating coil wht dot wound on Rl04...

Страница 21: ...SETS NOTE STATION SELECTOR SHOWN IN CHANNEL NO 2 IRON TUNING CORES t BRASS TUNING CORES 7 100 B B R34 2 5 6 I 3 4 Vl4 VERT SWEEP OUTPUT 6AS5 IN SOME SETS SWITCH 51 POSITION Vl2 7N7 SOME SETS CONNECTIONS t2 3 I C ASSIS Tl MIXER l u2 We L IB 8 L l CONNECTIO I 6800 R9 WHEN USINt _ J 12AV7 Scanned by mbear2k Jan 2012 ...

Страница 22: ...S 110 R40 33K R41 soo esc 6800 R42 V9 6AL5 RATIO D T X 50V 10 oMF _ CS2 10 0001 4 7 CS31 MEG I R44 I I I I I I I I I I R43 I 6800 1 I I J I 00 I c J SI T2 CONNECTIONS S600 R21 T_E_S_T_ p IIMF 2 F 270K R4S 470K R47 300Vl C61C OR CI6B Motorola TELEVISION CHASSIS TS 114A 68 C55 VII 6V6 AUDIO OUTPUT Diag No 63E710205 0 1000 R49 2 2 LSI TO POWER SUPPLY GRN JJ V 10001 C90 Scanned by mbear2k Jan 2012 ...

Страница 23: ...THERWISE SPECIFIED INDUCTANCES INDICATED IN IIIICROHENRIES UNLESS OTHEIIWISE SPECIFIED CAUTION DO NOT ATTEMPT VOLTAGE READINGS ON HIGH VOLTAGE RECTIFIER OR SCOPE READINGS ON 6106 PLATE WITH ORDINARY EQUIPMENT 117VOLTS 60 CYCLE lAC ONLY SAFETY INTERLOCK X BLK T7 0 ee z 0 C68 CllilF OR 14oov C86A l V21 5U4G L V RECT RED j _ _ RED YE L 10 1000 RS I 2000 R79 42l F IOK tX SEE ALSO DETAIL C RE 0 BLU J 9...

Страница 24: ...6 1 5MEG R27 Til__ 1 O T J vv i 470 R70 VERT SIZE 5MEG R68 150K R95 150K liM 1r r r J l Cll iT w TO PIN 3 OF TEST a ADAPTER SOCKET RED PIN I OF a 1Eo o SOCKET TRANS GIIN 31 OHMS T6 O C SIST NCfS TERM I RES I TO 2 1 2 OMOIS 2 TO 3 10 OHMS 3 TO 4 I OMOI 4 TO 5 70 OHOIS CONTRA 47 R30 120 RIOO V20 1 4BP4 OR 14CP4 PICTURE TUBE 100 RI02 OIAG NO 6 3E 7 1020 5 0 I MEG 1176 Scanned by mbear2k Jan 2012 ...

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