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Daewoo DV6T811N-LT, Руководство по обслуживанию

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CIRCUIT DIAGRAM

5.DIGITAL AUDIO SCHEMATIC DIAGRAM

32

Содержание DV6T811N-LT

Страница 1: ...co kr VCR DVD REPEAT OPEN CLOSE DISPLAY TITLE PBC MENU PR PR OUTPUT PREV REC PROGRAM CLK CNT SPEED ANGLE TRACKING TV VCR MARK SEARCH SYSTEM PLAY PAUSE NEXT ZOOM AUDIO SUBTITLE RETU RN O K CL EA R 3D S...

Страница 2: ...1 SPECIFICATIONS 2 ADVANTAGES OF THIS PRODUCT 3 TROUBLE SHOOTING 5 WAVEFORMS 25 CIRCUIT DIAGRAM 28 PCB CIRCUIT BOARD 39 INSTRUMENT DISASSEMBLY 44 ELECTRICAL PARTSLIST 49 CONTENTS 1 2 3 4 5 6 7 8...

Страница 3: ...andVCR Audiooutputterminal 2kinds 8 8dBm VCR 2 0Vrms DVD RCAJACK AUDIOoutput DVDonly AnalogueAUDIOoutput 2CH 2 0Vrms Digitalaudiooutput OPTICAL COAXIAL Playabletape VeryhighdensetapeswithVHSmarks Play...

Страница 4: ...3Dsoundeffectusing2speakers Highbit highsamplingwith27MHz 10bitvideoencoder Thisunithas27MHz 10bitcapability thatenablesthefaithfulreproductionoffineimages Highbit highsamplingwith96KHz 24bitaudioD A...

Страница 5: ...function DVD YoucanselectanddisplayOSDin3languages English French Spanish ParentalLockfunction DVD Thisfunctioncanpreventplaybackofsoftwarethatmaybeunsuitableforchildren MultiAudiofunction DVD Theaud...

Страница 6: ...400 140V voltage obtained at C805 Output voltage of 2nd parts is normal Check rectifier diode of 2nd parts D821 D822 D823 D825 D826 D827 D828 Switching pulse of IC801 pin 4 or pin 5 is normal OK Excha...

Страница 7: ...IC701 pin 2 Is 22V 18V obtained at F F Specific GRID SEG doesn t function Check D701 Check POWER circuit at 26V Check C704 IC701 Check IC 701 pin 18 27 Check IC 701 pin 28 43 NO YES YES YES YES NO NO...

Страница 8: ...ars on the playback screen Is noise diminished by tracking adjustment Noise band is trembled up and down Re adjust PATH IstheheightofCTLHEADnormal Nodust Is there problem in CTL Input circuit and ampl...

Страница 9: ...e at IC601 pin 16 18 Check PCB Pattern Check IC601 C 2 Bad playback quality 2 No broadcasting signal received Is the output at IC601 pin 71 CLK 72 DATA normal Is SIF Video output at TMI RF101 pin 18 2...

Страница 10: ...obtained at Each parts of Loading Motor Replace Loading Motor Check D851 and POWER circuit E No CASSETTE Loading YES YES F AUTO STOP in Playback mode VCR stops automatically in playback mode Check R6...

Страница 11: ...e obtained at P603 pin 9 Check P603 Connector and Capstan Motor Check 14V Q856 Q857 Q852 Check Capstan FG IC 601 87 Check R665 R664 R663 R666 C665 Check R661 R667 C664 DRUM Motor stops Is 13V voltage...

Страница 12: ...301 pin 68 69 70 62 Signal output at IC301 pin 65 is transferred to IC301 pin 56 YES NO Check PCB Pattern Is signal input at IC302 pin 12 or 13 YES NO Check PCB Pattern Is signal input at IC302 pin 14...

Страница 13: ...pear Is Envelope output at IC301 pin 79 NO NO YES Check Sync separate circuit and OSD circuit Is 5V obtained at IC301 pin 91 Is SW Pulse input at IC301 pin 70 Is 5V obtained at IC301 pin 21 57 Check P...

Страница 14: ...IC301 pin 70 Is REC signal input at IC301 pin 94 95 89 90 EP MODE 89 90 Pin SP MODE 94 95Pin Check HEAD and Connector Is signal input at IC301 pin 48 50 52 54 Check POWER circuit Check PB H circuit Ch...

Страница 15: ...IC101 pin 2 Is AUDIO output at IC101 pin 26 27 Check IC251 pin 2 3 Check POWER circuit Exchange X101 Check RF101 Exchange IC101 NO NO Is Video signal input at IC601 pin 50 Check POWER circuit No OSD...

Страница 16: ...21is L Is about 3 5V obtained at IC252 pin 9 Is about 8V obtained at pin 10 YES Check IC601 Check R298 R299 R646 R647 NO NO C at Q258 is L or H YES Check IC601 Check Output JACK H H L YES Is Audio sig...

Страница 17: ...IC252 pin 9 Is about 8V obtained at pin 10 YES Replace IC252 Check IC601 Check R298 R299 R646 R647 NO NO NO C at Q258 is L or H YES Check IC601 Check Output JACK Check Q257 Q258 R2 40 R241 R242 H H L...

Страница 18: ...io signal output at IC252 pin 3 13 Check POWER circuit NO YES NO IC601 pin 20 is H pin21 is H Is about 8V obtained at IC252 pin 9 Is about 8V obtained at pin 10 Replace IC252 Check IC601 Check R298 R2...

Страница 19: ...5 C of Q258 is L or H YES Is DVD signal output at IC251 pin 3 13 Check ICD01 DVD Blcok Ad2 NO YES YES H Check Mute circuit Check Output JACK L IC601 pin 20 is H pin 21is H Check IC601 NO Is about 8V o...

Страница 20: ...ATA Signal at pin 2 voltage at ICD01pin 6 is 5V voltage at ICD01pin 5 is 3 3V Check and Replace MPEG Board Check power circuit YES NO NO NO Is there DVD Audio at ICD01 pin 7 8 Check signal flow circui...

Страница 21: ...Is thereAudio at IC252 pin 5 14 Replace IC251 NO Check power circuit NO YES YES Is the voltage at IC251 pin 44 over 3 2V C at Q258 is L or H Check MUTE circuit H L YES YES YES Check Output JACK B No...

Страница 22: ...signal at IC301 pin 2 Check IC601 pin 22 c No Hi Fi playback in record playback mode REC MODE YES YES Replace DRUM NO HEAD CLEANING YES D No NORMAL AUDIO playback PLAY MODE No Normal Audio playback Is...

Страница 23: ...Is there recording signal at IC251 pin 21 Check IC101 MPX Block Check Input LINE1 JACK Check Input LINE2 JACK Check ICD02 DVD Block Check signal flow circuit YES NO NO NO Signal at IC251 pin 21 is tr...

Страница 24: ...rt Check Flash Memory and CPU IC CheckMPEGDecoderIC Check FFC CABLE connected to P481 5 MPEG B D No LOGO display Is Power supplied YES NO NO NO YES YES Does Oscillation Device oscillate Is Digital Dat...

Страница 25: ...ata transmitted from CPU and Flash YES NO NO NO YES YES IsDigitalAudioDatatransmittedtoMPEG DecoderICpin 133 Is there Digital Audio signal from P481 pin 1 Check VCR Part Check Flash Memory and CPU IC...

Страница 26: ...1 VIDEO 480 8 4 4 SP IC301 88 89 3 0Vp p EP IC301 94 95 2 2 Vp p 1V 10msec cm REC 6 6 IC604 3 IC301 63 or 61 IC302 14 IC301 63 or 61 IC302 14 IC301 70 0 5 5msec cm SP PLAY REC IC301 70 0 5 5msec cm E...

Страница 27: ...26 WAVEFORMS 15 9 P201 2 2 AUDIO 2 1 AUDIO Mono 2 2 AUDIO HI Fl Q901 collector...

Страница 28: ...01 18 5Vp p 2V 5msec cm REC PLAY IC601 77 5Vp p sec cm REC PLAY IC601 76 5Vp p sec cm REC PLAY IC601 94 3Vp p 1V 5msec cm REC IC601 97 4 4Vp p 1V 5msec cm PLAY IC601 90 25Vp p 5Vp p 1V 5msec cm REC PL...

Страница 29: ...28 CIRCUIT DIAGRAM 1 POWER SUPPLY SCHEMATIC DIAGRAM 120V ONLY 5...

Страница 30: ...29 CIRCUIT DIAGRAM 2 PO W ER SUPPLY SCH EM ATIC DIA G RA M DV D CO M BO FREE 5...

Страница 31: ...30 CIRCUIT DIAGRAM 3 VIDEO AUDIO SCHEMATIC DIAGRAM...

Страница 32: ...CIRCUIT DIAGRAM 4 SERVO SYSCON SCHEMATIC DIAGRAM 31...

Страница 33: ...CIRCUIT DIAGRAM 5 DIGITAL AUDIO SCHEMATIC DIAGRAM 32...

Страница 34: ...CIRCUIT DIAGRAM 6 Hi Fi SW CIRCUIT DIAGRAM 33...

Страница 35: ...CIRCUIT DIAGRAM 7 INPUT AUTPUT SCHEMATIC DIAGRAM 34...

Страница 36: ...CIRCUIT DIAGRAM ATATI 35...

Страница 37: ...CIRCUIT DIAGRAM 36...

Страница 38: ...CIRCUIT DIAGRAM CPU 37...

Страница 39: ...CIRCUIT DIAGRAM DECODER 38...

Страница 40: ...39 PCB CIRCUIT BOARD 1 1 VCR MAIN 6...

Страница 41: ...PCB CIRCUIT BOARD 1 2 POWER 40...

Страница 42: ...PCB CIRCUIT BOARD 1 3 LOGIC 41...

Страница 43: ...PCB CIRCUIT BOARD 2 1 DVD MAIN A 42...

Страница 44: ...PCB CIRCUIT BOARD 2 2 DVD MAIN B 43...

Страница 45: ...es in the order presented When reassembling use the reverse procedure Make sure that all leads wiring are routed correctly when reassembling FIG 1 FIG 2 A LEG REMOVAL B TOP COVER REMOVAL Remove 2 scre...

Страница 46: ...UMENT DISASSEMBLY C PANEL FRONT DISASSEMBLY D LOGIC PCB DISASSEMBLY FIG 3 FIG 4 Remove 3 Hooks at bottom Remove 2 Hooks at left and right sides Simultaneously remove panel Remove 7 Hooks then remove L...

Страница 47: ...STRUMENT DISASSEMBLY FIG 5 E DECK AND MAIN PARTS DISASSEMBLY Remove 6 screws then remove DECK Remove 4 screws then remove LOADER Remove 2 screws then remove LOADER PCB Remove 3 screws then remove POWE...

Страница 48: ...47 INSTRUMENT DISASSEMBLY FIG 6 F MAIN PCB DISASSEMBLY Remove 1 screws then remove MAIN PCB Remove 3 screws...

Страница 49: ...48 INSTRUMENT DISASSEMBLY G MAIN CHASSIS DISASSEMBLY FIG 7 Remove 6 screws then remove MAIN CHASSIS...

Страница 50: ...CR REMARK C209 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C211 HCBK103KBA CCHIPCERA 50VX7R0 01MFK1608 C213 HCQK221JBA CCHIPCERA 50VCH220PFJ1608 C216 HCBK102KBA CCHIPCERA 50VX7R1000PFK1608 C217 HCBK104KBA C...

Страница 51: ...M8H 1F9GP IC604 1BA7046F ICSYNCSRPA BA7046F ICD01 1PCM1748KE ICDAC PCM1748KE ICD03 1NJM4580MC ICCHIPAMP NJM4580M Q257 T2SC2412KB TRCHIP 2SC2412K T146 BR Q258 T2SA1037KB TRCHIP 2SA1037AKT146 R LOC PART...

Страница 52: ...3JBA RCHIP 1 16 20KOHMJ1608 R603 HRFS104JBA RCHIP 1 16 100KOHMJ1608 R605 HRFS103JBA RCHIP 1 16 10KOHMJ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R609 HRFS122JBA RCHIP 1 16 1 2KOHMJ1608 R610 HRF...

Страница 53: ...SM10MF5X7 C273 CEXF1C470A CELECTRO 16VRSM47MF 5X7 TP C275 CEXF1C100A CELECTRO 16VRSM10MF5X7 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C276 CEXF1C100A CELECTRO 16VRSM10MF5X7 C277 CEXF1C470A CELECTRO...

Страница 54: ...C3198Y TRANSISTOR KTC3198Y 1815Y AUTO Q255 TZTC3198Y TRANSISTOR KTC3198Y 1815Y AUTO Q256 TZTC3198Y TRANSISTOR KTC3198Y 1815Y AUTO LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK Q301 TZTA1266Y TR KTA1266...

Страница 55: ...RCARBONFILM 1 615KOHMJ R275 RD AZ102J RCARBONFILM 1 61KOHMJ R276 RD AZ331J RCARBONFILM 1 6330OHMJ R277 RD AZ511J RCARBONFILM 1 6510OHMJ R278 RD AZ511J RCARBONFILM 1 6510OHMJ R287 RD AZ474J RCARBONFIL...

Страница 56: ...5S50101Z90 SWTACT THVV502GDA SW702 5S50101Z90 SWTACT THVV502GDA SW703 5S50101Z90 SWTACT THVV502GDA LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK SW704 5S50101Z90 SWTACT THVV502GDA SW705 5S50101Z90 SWTA...

Страница 57: ...PCERA 25VY5V0 1MFZ1608 C517 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C518 HCFH104ZBA CCHIPCERA 25VY5V0 1MFZ1608 C519 HCQK220JBA CCHIPCERA 50VCH22PFJ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C520...

Страница 58: ...4 7KOHMJ1608 R558 HRFS472JBA RCHIP 1 16 4 7KOHMJ1608 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R559 HRFS000 BA RCHIP 1 16 0OHM1608 R560 HRFS000 BA RCHIP 1 16 0OHM1608 R561 HRFS000 BA RCHIP 1 16 0O...

Страница 59: ...7MFKXL F801 5FWPS2022L FUSEPLASTICTUBE WRL2A250VTLLT 5 SR 5 IC803 1KA431AZ ICREGULATOR KA431AZ L803 56X0000009 COILBEAD BLI7 5TAPPING LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK L822 56C220K695 COILC...

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