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akira 14THS3/CE, Руководство по обслуживанию

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15 

 

Model No: 14THS3

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CE.doc 

Version 1.0

 

 

 
 

C  Only horizontal line in the middle of the screen: 

    If vertical deflection circuit does not work, this kind of failure will happen. In deflection yoke, there only has horizontal sweeping , the electron beam in the CRT only moves in the horizontal orientation , so 

form this failure. 

   (While checking horizontal and vertical deflection circuit’ s failure , we have better to use an oscilloscope.) 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Abnormal  

Normal  

Normal  

Abnormal 

24V 

0V 

Abnormal  

Normal 

The waveform on the pin 21,22 of N301 

Measuring the waveform on the deflection yoke 

Check C401,C402,R401,R402,N301 

The voltage on pin 2 of N401 

Check VD470, R470,VD401,N401 

Check N402 

Measuring the waveform on pin 1 of N401 

Check R405, C408, N401, N301 

Measuring the waveform on pin 5 of N401 

Check R407,C408,R406,XS403, deflection yoke 

Abnormal  

The deflection yoke on the CRT 

Содержание 14THS3/CE

Страница 1: ...C C Co o ol l lo o ou u ur r r T T TV V V S S Se e er r rv v vi i ic c ce e e M M Ma a an n nu u ua a al l l...

Страница 2: ...2 Model No 14THS3 CE doc Version 1 0 M M Mo o od d de e el l l 1 1 14 4 4T T TH H HS S S3 3 3 C C CE E E C C Ch h ha a as s ss s si i is s s U U UO O OC C C O O OM M M8 8 83 3 37 7 70 0 0...

Страница 3: ...CE 4 GENERAL DESCRIPTION 6 TECHNICAL SPECIFICATION 7 GENERAL SPECIFICATION 8 HORIZONTAL AND VERTICAL CIRCUIT 9 CHASSIS BLOCK DIAGRAM 10 FAULT FINDING TREES 11 IC BLOCK DIAGRAM 18 FACTORY MENU 40 EXPLO...

Страница 4: ...not exceed 25KV When checking the EHT use the High Voltage Check procedure in this manual using an accurate EHT voltmeter 3 The only source of X RAY radiation in this receiver is the CRT To prevent X...

Страница 5: ...binet always be certain that all the protective devices are installed properly such as control knobs adjustment covers or shields barriers isolation resistor capacitor networks etc Before returning an...

Страница 6: ...fter processed in the SAWF the 38 9MHz signal gets to pin 23 and pin 24 of OM8370 The IF circuit in OM8370 includes such unit as the AGC amplifying circuit 38 9MHz oscillator PLL video demodulator vid...

Страница 7: ...ghtness set in Maximum sound increase maximum 90Watts Total Power Consumption Standby Mode 14 Watts Brightness contrast set in Maximum Min 26 2KVdc Typical Design value Average 26 5KVdc EHT Brightness...

Страница 8: ...ing AV IN OUT 2 AV STEREO IN 1 AV STEREO OUT Component IN 1 YUV Component IN VIDEO IN 1 0 0 2Vp p 75 Ohm AUDIO IN 0 2V RMS VIDEO OUT 1 0 0 2Vp p 75 Ohm AV IN OUT specification AUDIO OUT 0 2V RMS OSD l...

Страница 9: ...eflection circuit 2 Amperes for DC coupled 90 or 110 deflection systems with frame frequencies from 50 up to 120 Hz one supply voltage for the scanning and second voltage supply for the flyback are ne...

Страница 10: ...out Audio out L Audio out R Video in1 Audio in1 L Audio in1 R Y Cr Cb S video V in2 A in2 L A in2 R 15 14 13 9 10 1 2 3 4 5 11 15 14 13 12 9 10 12 10 4 2 6 8 9 PHILIPS UOC TDA9351 61 81 VIDEO AMPLIFI...

Страница 11: ...V1511 Check VD522 C528B Recover R458 unplug XS403 for a While then test the voltage of C528B Check V451 T451 T450 Deflection coil Check L452 VD436 C461 Deflection coil Voltage of C507 Check if V1513...

Страница 12: ...d pole negative in ohm scope on the circuit board ground then touch softly the test point with another pole black pole in ohm scope meanwhile observe the reactivity on the output device Note In the TV...

Страница 13: ...e is snow noise wave disturbance on the CRT via using Signal input way by touching pin 17 of N301 Check R331 C336 C337 Observe if snow noise wave disturbance on the CRT via using signal input way by t...

Страница 14: ...1 Hear if there is the voice liking Ka Ka in the loudspeaker via using Signal input way by touching pin 3 of N121 Hear if there is the voice liking Ka Ka in the loudspeaker via using Signal input way...

Страница 15: ...king horizontal and vertical deflection circuit s failure we have better to use an oscilloscope Abnormal Normal Normal Abnormal 24V 0V Abnormal Normal The waveform on the pin 21 22 of N301 Measuring t...

Страница 16: ...In theory it can work if it holds two conditions as follow 1 The power supply In general it is 5V the error is not above 10 and the disturbance pulse is as small as possible 2 The clock pulse In TDA93...

Страница 17: ...3 3V 14V 3 3V YES 3 3V NO 3 3V 3 3V N301 does not work The voltage on the pin 56 of N301 Observe if there is sine wave on the pin 58 or pin 59 of N301 with an oscilloscope Check the voltage on the po...

Страница 18: ...18 Model No 14THS3 CE doc Version 1 0 IC BLOCK DIAGRAM Fig 1 OM8370 Illustration...

Страница 19: ...g the bandgap circuit provides a very stable and temperature independent reference voltage This reference voltage 4 0V ensures optimal performance of the analogue video processor part of the OM8370 an...

Страница 20: ...e Pin 40 CVBS input Pin 42 Y signal input Pin 43 C signal input Pin 44 Main audio output This pin is connected to the TDA9859 Pin 45 RGB signal input blanking Pin 46 Pin 47 Pin 48 RGB signal input Pin...

Страница 21: ...21 Model No 14THS3 CE doc Version 1 0 Fig 2 HEF4052BP Illustration...

Страница 22: ...NCTION TABLE OF N4052 Input A1 A0 Channel On L L L Y0A ZA Y0B ZB L L H Y1A ZA Y1B ZB L H L Y2A ZA Y2B ZB L H H Y3A ZA Y3B ZB H X X NONE Notes H HIGH state the more positive voltage L LOW state the les...

Страница 23: ...23 Model No 14THS3 CE doc Version 1 0 IC N402 VERTICAL OUTPUT LA78040 or STV9302...

Страница 24: ...24 Model No 14THS3 CE doc Version 1 0...

Страница 25: ...25 Model No 14THS3 CE doc Version 1 0...

Страница 26: ...26 Model No 14THS3 CE doc Version 1 0...

Страница 27: ...27 Model No 14THS3 CE doc Version 1 0...

Страница 28: ...28 Model No 14THS3 CE doc Version 1 0...

Страница 29: ...29 Model No 14THS3 CE doc Version 1 0...

Страница 30: ...30 Model No 14THS3 CE doc Version 1 0...

Страница 31: ...31 Model No 14THS3 CE doc Version 1 0...

Страница 32: ...32 Model No 14THS3 CE doc Version 1 0...

Страница 33: ...33 Model No 14THS3 CE doc Version 1 0...

Страница 34: ...34 Model No 14THS3 CE doc Version 1 0...

Страница 35: ...35 Model No 14THS3 CE doc Version 1 0 1 Inverting input 2 Vcc 3 Pump up out 4 GND 5 VER output 6 Output stage Vcc 7 Non inv Put...

Страница 36: ...36 Model No 14THS3 CE doc Version 1 0 Fig 4 AN7522N Illustration...

Страница 37: ...37 Model No 14THS3 CE doc Version 1 0...

Страница 38: ...38 Model No 14THS3 CE doc Version 1 0...

Страница 39: ...39 Model No 14THS3 CE doc Version 1 0 Fig 5 KA5Q0765RT Illustration...

Страница 40: ...example to select Menu 7 you should press call key and LOCK key in turns then press the numeric key 7 Menu function introduction Menu 1 Preset value Item 50Hz 60Hz Definition V SLOPE 32 32 Vertical li...

Страница 41: ...off set in bright mode Y DELAY PAL 8 Y signal delay in PAL system Y DELAY NTSC 8 Y signal delay in NTSC system Y DELAY AV 8 Y signal delay in AV mode Menu 3 Item Preset value Definition OSO 1 Over sc...

Страница 42: ...OSD selection Menu 9 Item Preset value Definition BAND 2 Must be 2 according to be TUNER START ON 0 0 Last memory mode TV mode 1 Power on standby mode LOGO OFF No use ON DELAY 10 Power on delay time a...

Страница 43: ...43 Model No 14THS3 CE doc Version 1 0 EXPLODED VIEW AND PART NAME...

Страница 44: ...354 355 6 CARBON RES RT13 1 6W 68 J D10B680J T RDB680J NAAT 1 R304 7 CARBON RES RT13 1 6W 75 J D10B750J T RDB750J NAAT 1 R801 8 CARBON RES RT13 1 6W 82 J D10B820J T RDB820J NAAT 1 R313 R301 302 359 36...

Страница 45: ...1 6W 1 5K J D10B152J T RDB152J NAAT 2 R397 732 21 CARBON RES RT13 1 6W 1 8K J D10B182J T RDB182J NAAT 3 R403 405 1523 R315 351 361 371 451 22 CARBON RES RT13 1 6W 2 2K J D10B222J T RDB222J NAAT 6 R46...

Страница 46: ...T RDB273J NAAT 2 R484 487 33 CARBON RES RT13 1 6W 33K J D10B333J T RDB333J NAAT 4 R171 175 317 385 34 CARBON RES RT13 1 6W 47K J D10B473J T RDB473J NAAT 3 R172 732A 745 CARBON RES RT13 1 6W 56K J D10...

Страница 47: ...T14 1 4W 15K J D10C153J T RDC153J NABTD 1 R1522 48 CARBON RES RT14 1 4W 51K J D10C513J T RDC513J NABT 2 R539 539A 49 CARBON RES RT14 1 4W 150K J D10C154J T RDC154J NABTD 1 R1554 50 CARBON RES RT14 1 4...

Страница 48: ...DN 2 R454 546 65 OXIDE FILM RES RY17 2W 10K J S10F103J C RSF103J5ACDN 1 R467 OXIDE FILM RES RY17 2W 12K J 1 R703 66 OXIDE FILM RES RY17 2W 12K J S10F123J C RSF123J7ACDN 3 R915 925 935 67 OXIDE FILM RE...

Страница 49: ...1K T 1 C381 82 CERAMIC CAPA CT1 06A 2B4 63V 820pF K C2BF821K T 1 C323 C308 311 401 83 CERAMIC CAPA CT1 06A 2B4 63V 1000pF K C2BF102K T CKF102K1BA F 7 C402 481 721 861 84 CERAMIC CAPA CT1 06A 2B4 63V 2...

Страница 50: ...CERAMIC CAPA CK 400V 470PF 20 C2EM471M O CKMX471K301N 2 C515A 598 97 CERAMIC CAPA CK 400V 1000PF 20 C2EM102M O CKMX102M301N 1 C515 98 CERAMIC CAPA CD110 10V 100uF M E10C100M T CEB101MYACBN 1 C548 C16...

Страница 51: ...CAN 11 C862 112 Electrolytic Capa CD110 50V 2 2uF M E20F2R2M T CEF2R2MYACAN 2 C339 755 113 Electrolytic Capa CD110 50V 4 7uF M E20F4R7M T CEF4R7MYACAN 5 C303 304 325 353 464 114 Electrolytic Capa CD11...

Страница 52: ...L11 100V 0 047uF K F20G473K T CFG473K1 H N 1 C1513 130 FILM CAPA CL11 100V 0 1uF K F20G104K T CFG104K2 H N 5 C1514 460 705 706 707 131 FILM CAPA CBB21 2 0V 0 39uF 5 F20J394J CNJ394J9 H N 1 C467 132 FI...

Страница 53: ...45 DIODE TVR4N DR0015XX T DRTTVR4N NZ 4 VD503 504 505 506 VD436 472 146 RECTIFIER DIODE RGP10J DR0017XX DRRGP10J T 3 VD524 147 RECTIFIER DIODE RGP15D DRRGP15D N 2 VD521 543 148 DIODE ZENER HZ5C1 DZ000...

Страница 54: ...1 122 173 301 350 V351 352 353 354 395 163 TRANSISTOR 2SC945 2SC1815 KTC3198 Y RXC945XX T Q2PC1815 GNF 13 V504 801 1553 164 TRANSISTOR 2SB1443TV2Q 2SB985T 2SB892 KTA1281 Y RXB892XX T Q2SB1443 NN 1 V54...

Страница 55: ...1 Z354 176 SAW FITER 2966 38 9MHz FS0043XX XFS043 NB 1 Z301 177 FUSE 3 15A 250V FXXX0020 FBA3154S02C 1 F501 178 POWER SW KDC A11 1 K501 179 TUNER 5V 38 9M 470M BXATB066 X 1 A101 180 Crystal Oscillator...

Страница 56: ...AAV2001 1 XS501 188 2S SOCKET TJC2 2A NXXX0230 1 XS502 189 SPEAKER SOCKET TJC3 2A NXXX0210 1 XS702 190 4S SOCKET TJC3 4A NXXX0234 1 XS161 191 S SOCKET TJC3 5A NXXX0235 1 XS895 192 DY SOCKET TJC2 5A NX...

Страница 57: ...X0114 B 1 H N503 202 Radiator HEATSINK FOR POWER MB1X0154 B 1 H N501 203 Radiator HEATSINK FOR SOUND MB1X0113 B 1 H N161 204 TESTING POINT TJC2 1A PTSX0010 1 XS904A 205 SCREW ST3 1 N505 206 SCREW M2 5...

Страница 58: ...W011 265 266 391 486 210 JUMPER 5 mm LXXX0101 7 W791 929 211 JUMPER 6mm LXXX0110 3 W582 683 684 W021 051 131 168 231 W242 243 244 245 264 W311 356 358 368 373 W381 385 442 443 466 W467 471 493 501 53...

Страница 59: ...361 421 W435 472 484 485 571 W535 643 650 653 655 W741 751 752 900 921 213 JUMPER 10 mm LXXX0103 36 W922 W142 253 432 454 551 W621 665 673 674 681 W682 731 781 872 873 214 JUMPER 12 5 mm LXXX0104 16...

Страница 60: ...60 Model No 14THS3 CE doc Version 1 0 217 JUMPER 20 mm LXXX0107 5 W156 481 561 661 664...

Страница 61: ...1 W1001 3 CARBON RES RT13 1 6W 1 2K J D10B122J T RDB122J NAAT 1 R1006 4 CARBON RES RT13 1 6W 2K J D10B202J T RDB202J NAAT 1 R1007 5 CARBON RES RT13 1 6W 2 7K J D10B272J T RDB272J NAAT 1 R1004 6 CARBON...

Страница 62: ...62 Model No 14THS3 CE doc Version 1 0 11 Connector TJC3 2P 2Y 800mm 1 XZ1001 12 13 21 KEY PCB AKPA21005 K 1...

Страница 63: ...ST AV Board Components EASTKIT EAST KIT Name Specification Parts Code Parts Code Q TY Parts Location 1 AV SOCKET TX2 ZA2 1 XZ1002 2 AV SOCKET TX2 ZA2 1 XZ1003 3 AV SOCKET TX2 ZA2 1 XZ1004 4 Connector...

Страница 64: ...64 Model No 14THS3 CE doc Version 1 0 CIRCUIT DIAGRAM...

Страница 65: ......

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