XOCECO TA2933 Скачать руководство пользователя страница 2

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Contents

Safety Instruction

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X-ray radiation protection

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Safety Measures

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Points of attention for product safety

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Alignment procedures

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Adjustment equipment

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Adjustment instruction

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Factory adjustment method

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IF amplification adjustment

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B+ confirmation

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AGC adjustment

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Sound detection

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Adjustment of Focus Potentiometer

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Alignment of line certer

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Field amplitude, field S alignment, field center, line amplitude, E/W alignment etc.

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Adjustment of screen-grid VG2

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White balance adjustment

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Inspection of the high voltage and filament voltage

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Inspection of X-ray protection

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Inspection of beam current

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Inspection of AV function

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Wiring diagram

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IC block diagram

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Schematic diagram

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Electrical parts list

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Assembly drawing of complete set

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Detail list of Assembly drawings

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Содержание TA2933

Страница 1: ...SERVICE SERVICE MANUAL MANUAL ...

Страница 2: ... Adjustment of Focus Potentiometer 6 Alignment of line certer 6 Field amplitude field S alignment field center line amplitude E W alignment etc 6 Adjustment of screen grid VG2 7 White balance adjustment 7 Inspection of the high voltage and filament voltage 7 Inspection of X ray protection 7 Inspection of beam current 7 Inspection of AV function 7 Wiring diagram 8 IC block diagram 9 Schematic diagr...

Страница 3: ... electric and mechanical components on the PCB that are related with the safety features These features are not easily visible Replacement parts that have special safety characteristic are indicated in the Instruction Manual Electric components with such features will be labeled with shadow or labeled with in the detail list When changing these components please refer to the detail list in the man...

Страница 4: ...ack cabinet there will be risk of electric shock so a Before detaching the anode cap please discharge it several times by grounding the anode of CRT to earth many times to avoid electric shock b Before moving the CRT its anode must be thoroughly discharged The CRT is a high vacuum part Once broken its fragments will fly out violently Therefore it must be very careful in dismantling and loading it ...

Страница 5: ...nd the volt value should be AC 3000V Parts designation Position Antenna terminal Back cover External cover screw Back cover AV interface Back cover sides 1 3 Points of attention for product safety There are many electric and mechanical parts in this PCB that are related to safety However they are often neglected from visual look For changing the high voltage and high power parts very often it s im...

Страница 6: ... course VG2 adjustment White balance and Line field center and field amplitude reset Line amplitude and Focus fine adjustment check High volt Filament volt X ray Picture Brightness White Color Set Av terminal Check of key Check on Assembly Safety check casse Com IF Test Dark balance SCART JACK Earphone jack Sound power See Fig 2 Set R378 to optimize Field center ...

Страница 7: ...TP1 through 1000p capacitor adjust IFT L102 with zero inductance screwdriver to make the readout of multi meter as 2 5V 0 1 V c Connect 33 9M SECAM L IF signal to TP1 through 1000P capacitor apply voltage 5v at TP1 TP3 TP8 adjust RP101 with zero inductance screwdriver to make the readout of multi meter as 2 5V 0 1 V d After adjustment connect the IF line disconnect point of tuner seal L102 with wa...

Страница 8: ... Alignment of line center 4 7 1 Receive 50 HZ signal from video head 4 7 2 Enter the factory menu RGB HOR POSITION item under AV status adjust amplitude of RGB and make the picture to be symmetry Then save 4 7 3 Receive 60Hz video signal and enter the factory menu RGB HOR POSITION item under AV status The adjusting method of POSITION is same as 4 7 1 4 7 2 4 7 4 Adjust separately under following f...

Страница 9: ... Connect high voltmeter between the high voltage cap and the earth Measure the filament voltage with an actual value and effective voltage meter 4 11 2 Receive D35 signal set the picture mode at dynamic and measure the high voltage and filament voltage The voltage for 29 Yongxin extra pure flat should be high voltage 29 kV 0 5 kV 29 pure flat high voltage 30 kV 0 5 kV filament voltage 6 3 0 3 Vrms...

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Страница 17: ...04 340 00001 003 1N4148 D601 340 00001 003 1N4148 D701 340 00001 003 1N4148 D602 340 00001 003 1N4148 D702 340 00001 003 1N4148 D525 340 00001 003 1N4148 D508 340 00001 003 1N4148 WARNING BEFORE SERVICING THIS CHASSIS READ THE X RAY RADIATION PERCAUTION SAFETY PRECAUTION AND RPODUCT SAFETY NOTICE ON PAGE 1 2 OF THIS MANUAL CAUTION 1 The shaded areas makes in the schematic diagram and the parts lis...

Страница 18: ...14 003 RGP10J D363 340 00014 003 RGP10J D305 340 00086 003 TVR 1B REGULATED DIODE D310 340 51850 00 HZ18 3 D202 340 50560 00 HZ6B1 D203 340 50560 00 HZ6B1 D360 340 50470 003 HZ5B1 D308 340 50470 003 HZ5B1 D309 340 50470 003 HZ5B1 D205 340 50510 003 HZ5C2 D206 340 50510 003 HZ5C2 D518 340 50560 003 HZ6B1 D517 340 50610 003 HZ6C2 D523 340 50650 003 HZ7A2 D603 340 50810 003 HZ9A2 D314 340 50910 003 H...

Страница 19: ...3 18150 114 2SC1815 Y V408 343 18150 114 2SC1815 Y V409 343 18150 114 2SC1815 Y V108 343 18150 114 2SC1815 Y V505 343 18150 114 2SC1815 Y V363 343 18150 114 2SC1815 Y V104 343 18150 114 2SC1815 Y V207 343 18150 114 2SC1815 Y V110 343 18150 114 2SC1815 Y V305 343 23830 604 2SC2383 0 V105 343 27170 004 2SC2717 CERAMIC CAPACITOR C526 459 6210K 00 DE0705B102K1K C204 459 2410R 00 DD308 63F104Z50 C616 4...

Страница 20: ... 2215K 002 CT1 06 2B4 63V 152K C638 459 2215K 002 CT1 06 2B4 63V 152K C606 459 2233K 002 CT1 08 2B4 63V 332K C607 459 2233K 002 CT1 08 2B4 63V 332K C311 459 2247R 002 CT1 08 2E4 63V 472Z CA12 459 2247R 002 CT1 08 2E4 63V 472Z CA15 459 2247R 002 CT1 08 2E4 63V 472Z C538 459 2310R 002 CK45 F1H103ZYR C539 459 2310R 002 CK45 F1H103ZYR C561 459 2310R 002 CK45 F1H103ZYR C563 459 2310R 002 CK45 F1H103ZYR...

Страница 21: ...CK DNS222MEX C507 459 B247R 00 DE0807F472ZAC250V C503 459 B247R 00 DE0807F472ZAC250V C508 459 B247R 00 DE0807F472ZAC250V C506 459 B247R 00 DE0807F472ZAC250V C523 459 2410R 00 DD308 63F104Z50 C360 459 6110H 00 CT81 06C Bn 1KV 101J C511 459 6147K 00 DE0705B471K1k C524 459 6210K 00 DE0705B102K1K C521 459 6215K 00 DE0905B152K1K C328 459 8147K 00 DE0707B471K2K C512 459 8210K 00 DE0907B102K2K THIN FILM ...

Страница 22: ...6 462 00210 H02 CL11 100V 1000PF J C634 462 00218 H02 CL11 100V 1800PF J C633 462 00218 H02 CL11 100V 1800PF J C338 462 00222 H02 CL11 100V 2200PF J C322 462 00222 H02 CL11 100V 2200PF J C602 462 00310 K02 CL11 100V 0 01uF K C603 462 00310 K02 CL11 100V 0 01uF K C604 462 00310 K02 CL11 100V 0 01uF K C605 462 00310 K02 CL11 100V 0 01uF K C329 462 90410 H02 63V 0 1uF J C101 462 B0422 H02 CL21X 50V 0...

Страница 23: ...10 16V 220uF M C131 464 6D747 M0 CD110 16V 470uF M C535 464 6D810 M0 CD110 16V 1000uF M C534 464 6D810 M0 CD110 16V 1000uF M C416 464 6D810 M0 CD110 16V 1000uF M C562 464 6E710 M0 CD110 25V 100uF M C361 464 6E810 M0 CD110 25V 1000uF M C707 464 6F747 M0 CD110 35V 470uF M C302 464 6F810 M0 CD110 35V 1000uF M C706 464 6F810 M0 CD110 35V 1000uF M C705 464 6F810 M0 CD110 35V 1000uF M C710 464 6F810 M0 ...

Страница 24: ...0 M02 CD110 25V 100uF M C365 464 6E710 M02 CD110 25V 100uF M C366 464 6E722 M02 CD110 25V 220uF M C367 464 6E722 M02 CD110 25V 220uF M C314 464 6E722 M02 CD110 25V 220uF M C532 464 6F710 M02 CD110 35V 100uF M C536 464 6F710 M02 CD110 35V 100uF M C310 464 6F710 M02 CD110 35V 100uF M C211 464 60510 M02 CD110 50V 1uF M C708 464 60510 M02 CD110 50V 1uF M C709 464 60510 M02 CD110 50V 1uF M C735 464 605...

Страница 25: ...W 56Ω J RA23 467 1C068 H03 1 6W 68Ω J R132 467 1C075 H03 1 6W 75Ω J R264 467 1C075 H03 1 6W 75Ω J R246 467 1C110 H03 1 6W 100Ω J R631 467 1C110 H03 1 6W 100Ω J R630 467 1C110 H03 1 6W 100Ω J R529 467 1C110 H03 1 6W 100Ω J R422 467 1C110 H03 1 6W 100Ω J R245 467 1C112 H03 1 6W 120Ω J R131 467 1C115 H03 1 6W 150Ω J R207 467 1C115 H03 1 6W 150Ω J R208 467 1C115 H03 1 6W 150Ω J R124 467 1C115 H03 1 6W...

Страница 26: ...10 H03 1 6W 1K J R243 467 1C210 H03 1 6W 1K J R282 467 1C210 H03 1 6W 1K J R629 467 1C210 H03 1 6W 1K J R310 467 1C210 H03 1 6W 1K J R120 467 1C210 H03 1 6W 1K J R105 467 1C210 H03 1 6W 1K J R547 467 1C210 H03 1 6W 1K J R521 467 1C210 H03 1 6W 1K J R520 467 1C210 H03 1 6W 1K J R534 467 1C210 H03 1 6W 1K J R256 467 1C212 H03 1 6W 1 2K J R280 467 1C212 H03 1 6W 1 2K J R354 467 1C212 H03 1 6W 1 2K J ...

Страница 27: ...1 6W 6 8K J R201 467 1C268 H03 1 6W 6 8K J R202 467 1C268 H03 1 6W 6 8K J R351 467 1C268 H03 1 6W 6 8K J R356 467 1C268 H03 1 6W 6 8K J R543 467 1C268 H03 1 6W 6 8K J R155 467 1C268 H03 1 6W 6 8K J R152 467 1C268 H03 1 6W 6 8K J R608 467 1C275 H03 1 6W 7 5K J R609 467 1C275 H03 1 6W 7 5K J R116 467 1C282 H03 1 6W 8 2K J R546 467 1C291 H03 1 6W 9 1K J R106 467 1C291 H03 1 6W 9 1K J RA22 467 1C310 H...

Страница 28: ... 1 6W 33K J R113 467 1C310 H03 1 6W 10K J R714 467 1C347 H03 1 6W 47K J R713 467 1C347 H03 1 6W 47K J R379 467 1C356 H03 1 6W 56K J R705 467 1C356 H03 1 6W 56K J R128 467 1C410 H03 1 6W 100K J RA72 467 1C410 H03 1 6W 100K J RA20 467 1C410 H03 1 6W 100K J R710 467 1C410 H03 1 6W 100K J R717 467 1C410 H03 1 6W 100K J R212 467 1C410 H03 1 6W 100K J R205 467 1C412 H03 1 6W 120K J R358 467 1C418 H03 1 ...

Страница 29: ...0K 5 LA06 471 2010K 003 SPT0305 100K 5 LA07 471 2010K 003 SPT0305 100K 5 L105 471 2010K 003 SPT0305 100K 5 L108 471 2022K 003 SPT0305 220K 5 L201 471 2022K 003 SPT0305 220K 5 L216 471 2022K 003 SPT0305 220K 5 L401 471 2110K 003 SPT0305 101K 5 L218 471 2110K 003 SPT0305 101K 5 L308 471 2122K 003 SPT0305 221K 5 J107 471 2122K 003 SPT0305 221K 5 L601 471 1010K 00 EL0606SKI 100K L600 471 1010K 00 EL06...

Страница 30: ...67 2GA33 H0 2W 3 3Ω JL R305 467 2EB82 H0 1 2W 0 82Ω JL R532 467 2E222 H0 1 2W 2 2kΩ JL R522 467 2F012 H0 1W 12Ω JL R549 467 2F139 H0 1W 390Ω JL R324 467 2F210 H0 1W 1KΩ JL R317 467 2F310 H0 1W 10kΩ JL R511 467 2F333 H0 1W 33kΩ JL R339 467 2F351 H0 1W 51kΩ JL R510 467 2F382 H0 1W 82kΩ JL R526 467 2F382 H0 1W 82kΩ JL R506 467 2GA01 H2 RY21 2W 0 1Ω JL R527 467 2GB33 H0 2W 0 33Ω JL R528 467 2G047 H0 2...

Страница 31: ...R R503 469 10007 00 PTH451C262BG200N270 R501 469 40004 00 5D2 14LC SWITCH TRANSFORMER T503 470 00314 00 SD4920 H DRIVE TRANSFORMER T303 472 10001 00 XR0961 CERAMIC TRAP FILTER Z102 475 25551 00 XT5 5MB Z101 475 25601 00 XT6 0MB Z104 475 25651 00 XT6 5MB H LINEARITY COIL L303 477 00047 00 AC 41 POWER FILTER T501 477 20031 00 LCL 21 T502 477 20031 00 LCL 21 FIXED INDUCTANCE L502 477 40031 00 LG750 L...

Страница 32: ...59 2310R 00 CT1 08 2F4 63V 103Z ELECTROLYTIC CAPACITOR C801 464 6D710 M0 CD110 16V 100uF M CARBON RESISTOR R801 467 1C051 H0 1 6W 51Ω J R802 467 1C175 H0 1 6W 750Ω J R803 467 1C222 H0 1 6W 2 2K J R805 467 1C156 H0 1 6W 560Ω J R804 467 1C210 H0 1 6W 1K J R807 467 1C218 H0 1 6W 1 8K J R806 467 1C227 H0 1 6W 2 7K J R808 467 1C251 H0 1 6W 5 1K J R809 467 1C312 H0 1 6W 12K J SIDE AV BOARD SYMBOL PART N...

Страница 33: ... 1 6W 200Ω J RAA3 467 1C410 H0 1 6W 100K J RAA4 467 1C410 H0 1 6W 100K J METAL RESISTOR RAA10 467 2E047 H0 1 2W 47Ω JL RAA9 467 2E047 H0 1 2W 47Ω JL INDUCTANCE WITH COLOUR CODES RAA6 471 2A12K 00 SPT0305 1R2K 5 RAA7 471 2010K A0 SP0203 10uH K LAA1 471 2010K A0 SP0203 10uH K LAA2 471 2010K A0 SP0203 10uH K LAA3 471 2010K A0 SP0203 10uH K LAA4 471 2010K A0 SP0203 10uH K LAA5 471 2010K A0 SP0203 10uH...

Страница 34: ... 63V 471J C423 459 2147H 90 CC1 12 SL 63V 471J C424 459 2147H 90 CC1 12 SL 63V 471J C433 459 2147H 90 CC1 12 SL 63V 471J C434 459 2147H 90 CC1 12 SL 63V 471J C422 459 2168K 00 CT1 06 63V 2B4 681K C401 459 2410R 00 DD308 63F104Z50 C442 459 8215K 00 DE1007B152K2K ELECTROLYTIC CAPACITOR C404 464 6D810 M0 CD110 16V 1000uF M C402 464 6D722 M0 CD110 16V 220uF M C405 464 6D722 M0 CD110 16V 220uF M C403 4...

Страница 35: ...34 467 1E410 H0 1 2W 100K J METAL RESISTOR R419 467 2E233 H0 1 2W 3 3KΩ JL R429 467 2E233 H0 1 2W 3 3KΩ JL R439 467 2E233 H0 1 2W 3 3KΩ JL R415 467 2G291 H0 2W 9 1kΩ JL R425 467 2G291 H0 2W 9 1kΩ JL R435 467 2G291 H0 2W 9 1kΩ JL MELTABLE RESISTOR R441 467 4FA22 H0 1W 2 2Ω JL INDUCTANCE WITH COLOUR CODES L441 471 2110K 00 SPT0305 101K 5 VM BOARD SYMBOL PART NO DESCRIPTION 782 S34L0 6400 VM PCB DIOD...

Страница 36: ...8 160V 10uF M C613 464 62610 M0 CD288 160V 10uF M C618 464 62647 M0 CD288 160V 47uF M C621 464 62647 M0 CD288 160V 47uF M CARBON RESISTOR R632 467 1C082 H0 1 6W 82Ω J R634 467 1C082 H0 1 6W 82Ω J R624 467 1C122 H0 1 6W 220Ω J R625 467 1C191 H0 1 6W 910Ω J R620 467 1C210 H0 1 6W 1K J R644 467 1C212 H0 1 6W 1 2K J R645 467 1C212 H0 1 6W 1 2K J R637 467 1C215 H0 1 6W 1 5K J R639 467 1C215 H0 1 6W 1 5...

Страница 37: ...33 SYMBOL PART NO DESCRIPTION R640 467 2E047 H0 1 2W 47Ω JL R614 467 2E068 H0 1 2W 68Ω JL R631 467 2E133 H0 1 2W 330Ω JL R643 467 2F122 H0 1W 220Ω JL ...

Страница 38: ...34 Assembly drawing of complete set 1 2 3 4 5 6 7 8 9 10 11 12 14 13 15 16 17 18 19 20 21 22 23 25 24 ...

Страница 39: ...T 3 SCREW 16 PUSH BUTTON PLATE 4 BACK CABINET 17 MAIN BOARD FRAME 5 COMPOSITE BOLT 18 BACK PLATE 6 CRT 19 MAIN BOARD 7 CRT FIXED PLATE ASSY 20 SCREW 8 POWER SWITCH 21 DRAWING SPRING WITH FIBER LINE 9 POWER PUSH BUTTON 22 DEGAUSSING COIL 10 SCREW 23 LINE BUCKLE 11 SPEAKER 24 FIBER LINE 12 LOUD SPEAKER BRACKET 25 CRT BOARD 13 FRONT CABINET ...

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