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Service Manual

S/M No

. :. : VTC1C1WET0

Jan. 2002

DAEWOO ELECTRONICS CO., LTD.

http : //svc.dwe.co.kr

Video Cassette Player

Model:

DVST1C1WX - BG / D

DVST1C1WX - BG / E

DVST1M1WX - BB / D

DVST1M1WX - BB / E

DV - T1M1WX - BB / D

DV - T1M1WX - BB / E

DV - T1B1WX - BB / D

ALL T4 - MECHA

1B1W

1C1W

1M1W

✔

Caution

: In this Manual, some parts can be changed for improving, their

performance without notice in the parts list. So, if you need the

latest parts information,please refer to PPL(Parts Price List) in

Service Information Center (http://svc.dwe.co.kr).

Содержание DV-T1B1WX-BB/D

Страница 1: ...DVST1M1WX BB D DVST1M1WX BB E DV T1M1WX BB D DV T1M1WX BB E DV T1B1WX BB D ALLT4 MECHA 1B1W 1C1W 1M1W Caution In this Manual some parts can be changed for improving their performance without notice in...

Страница 2: ...WER BLACK DIAGRAM 6 SERVO SYSCON SCHEMATIC DIAGRAM MIDDLE EAST 7 SERVO SYSCON BLOCK DIAGRAM 9 VIDEO AUDIO SCHEMATIC DIAGRAM 10 PCB CIRCUIT BOARD 15 COMPONENTS LOCATION 17 ELECTRICAL PARTS LIST 18 APPE...

Страница 3: ...cassette VIDEO Signal system Recording system Input Output Signal to Noise ratio Horizontal resolution PAL MESECAM NTSC color signal Rotary two head helical scan with a slant double azimuth combinatio...

Страница 4: ...3 INTERCONNECT WIRING DIAGRAM...

Страница 5: ...4 POWER SUPPLY SCHEMATIC CIRCUIT DIAGRAM MIDDLE EAST...

Страница 6: ...D 250 250 260 S 0 0 0 Q803 E 0 0 0 B 0 0 0 C 1 1 1 Q804 E 0 0 0 B 0 4 0 4 0 4 C 1 1 1 Q805 E 12 6 12 6 12 6 B 13 2 13 2 13 2 C 14 7 14 3 15 Q806 E 0 0 0 B 0 3 0 3 0 3 C 13 2 13 2 13 2 Q807 E 5 3 5 3...

Страница 7: ...6 POWER BLOCK DIAGRAM...

Страница 8: ...7 SERVO SYSCON SCHEMATIC DIAGRAM MIDDLE EAST...

Страница 9: ...Y REC IC601 62 0 4 9 4 9 63 0 0 0 64 0 0 4 9 65 0 4 9 4 9 66 4 9 0 0 67 0 0 0 68 1 5 1 5 1 5 69 0 0 0 70 0 0 0 71 4 2 4 5 4 5 72 4 3 4 5 4 5 73 2 2 2 2 0 2 74 0 4 9 0 75 0 3 0 3 0 3 76 0 2 5 2 5 77 0...

Страница 10: ...9 SERVO SYSCON BLOCK DIAGRAM...

Страница 11: ...10 VIDEO AUDIO SCHEMATIC DIAGRAM...

Страница 12: ...0 90 0 0 0 91 0 0 0 92 0 3 0 3 1 6 93 1 2 2 6 1 94 0 0 1 2 95 0 0 0 96 2 5 0 2 5 97 0 0 0 98 2 5 2 5 2 5 99 0 1 0 1 4 2 100 2 5 2 5 3 9 A V MODE LOC PIN EE PLAY REC Q201 E 5 8 5 8 5 8 B 5 8 5 8 4 9 C...

Страница 13: ...VIDEO RECORD PATH FOR PAL 12 VIDEO PLAYBACK PATH FOR PAL...

Страница 14: ...13 PIF SCHEMATIC DIAGRAM...

Страница 15: ...PIF MODE LOC PIN EE PLAY REC Q101 E 2 6 2 6 2 6 B 1 9 1 9 1 9 C 0 0 0 Q102 E 12 5 12 5 12 5 B 12 5 11 7 12 5 C 0 12 5 0 Q103 E 0 0 0 B 0 4 9 0 C 12 5 8 9 12 5 14...

Страница 16: ...15...

Страница 17: ...16...

Страница 18: ...P049 H 4 JP050 H 4 JP051 H 5 JP053 I 4 JP055 H 5 JP068 I 5 JP069 H 5 JP070 G 7 JP071 F 7 JP073 F 7 JP074 F 8 JP077 G 9 JP080 D 5 JP081 B 4 JP083 G 10 JP084 D 10 JP087 E 7 JP090 D 8 JP091 D 8 JP092 D 7...

Страница 19: ...50V X7R 0 01MF K 1608 C202 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C203 HCBK332KBA C CHIP CERA 50V X7R 3300PF K 1608 C204 HCBK122KBA C CHIP CERA 50V X7R 1200PF K 1608 C206 CEXF1C220A C ELECTRO 16V RSM 2...

Страница 20: ...0V RSM 1MF 4X7 TP C332 CBZP1C103M C CERA SEMI 16V Y5S 0 01MF M AXIAL C333 CBZP1C103M C CERA SEMI 16V Y5S 0 01MF M AXIAL C334 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 C335 HCBK103KBA C CHIP CERA 50...

Страница 21: ...5V Y5V 0 1MF Z 1608 C624 HCFH104ZBA C CHIP CERA 25V Y5V 0 1MF Z 1608 C625 HCBK103KBA C CHIP CERA 50V X7R 0 01MF K 1608 C641 HCFH223ZBA C CHIP CERA 25V Y5V 0 022MF Z 1608 C642 HCFH223ZBA C CHIP CERA 25...

Страница 22: ...1 DZN4003 DIODE IN4003 D604 DZZ7R5BM DIODE ZENER UZ 7 5BM D660 DZN4148 DIODE 1N4148 AUTO 52MM D701 DZN4148 DIODE 1N4148 AUTO 52MM D704 DZN4148 DIODE 1N4148 AUTO 52MM D706 DZN4148 DIODE 1N4148 AUTO 52M...

Страница 23: ...2 2UH K AXIAL 3 5MM L104 5CPX561J COIL PEAKING 560UH 5MM J RADIAL L201 5CPX680J2T COIL PEAKING 68UH BLU BLK L202 5CPX680J2T COIL PEAKING 68UH BLU BLK L301 5CPX100J2T COIL PEAKING 10UH BRN BLK L302 5C...

Страница 24: ...M 1 6 75 OHM J R103 HRFS102JBA R CHIP 1 16 1K OHM J 1608 R106 RD 4Z471J R CARBON FILM 1 4 470 OHM J R107 RD 4Z471J R CARBON FILM 1 4 470 OHM J R108 RD AZ101J R CARBON FILM 1 6 100 OHM J R109 HRFS750JB...

Страница 25: ...72JBA R CHIP 1 16 2 7K OHM J 1608 R310 RD AZ201J R CARBON FILM 1 6 200 OHM J R311 HRFS681JBA R CHIP 1 16 680 OHM J 1608 R312 HRFS561JBA R CHIP 1 16 560 OHM J 1608 R313 HRFS472JBA R CHIP 1 16 4 7K OHM...

Страница 26: ...R CARBON FILM 1 6 1 2K OHM J R615 RD AZ122J R CARBON FILM 1 6 1 2K OHM J R616 RD AZ332J R CARBON FILM 1 6 3 3K OHM J R617 RS02F100J R M OXIDE FILM 2W 10 OHM J R618 HRFS201JBA R CHIP 1 16 200 OHM J 160...

Страница 27: ...ARBON FILM 1 4 6 2K OHM J R818 RD 4Z622J R CARBON FILM 1 4 6 2K OHM J R820 RD AZ103J R CARBON FILM 1 6 10K OHM J R821 RD AZ271J R CARBON FILM 1 6 270 OHM J R822 RD AZ101J R CARBON FILM 1 6 100 OHM J R...

Страница 28: ...MARK X301 5XE3R579TB CRYSTAL QUARTZ HC 49 U 3 579545MHZ 15PPM X302 5XE4R433TB CRYSTAL QUARTZ HC 49 U 4 433619MHZ 15PPM X602 5XJ14R31AE CRYSTAL QUARTZ HC 49 S 14 31818MHZ 30PPM XS01 5XJ17R7LAD CRYSTAL...

Страница 29: ......

Страница 30: ...connected the isolated transformer Check L801 Check R802 D801 D804 YES YES YES YES YES YES YES YES Check R804 R803 R809 R807 C806 C807 D805 Check F801 Fuse Is voltage applied to D801 D804 Is voltage...

Страница 31: ...B CHECKING THE SECONDARY CIRCUIT Check each output voltage Check transformer YES Check any diode which causes no power D815 D815 Protector Diode Check any Coil or Capacitor which causes no power END...

Страница 32: ...heck and re adjust the adjusting tracking NO cassette tape YES path of Deck YES Is CTL pulse output at pin 97 of CTL HEAD height is normal Adjust the HEAD height IC 601 NO and there is not dust NO and...

Страница 33: ...en at the bottom NO YES Adjust the PG in YES SVC mode Is SW pulse applied to Is SW pulse supplied from Check D OG input pin 11 of IC 301 NO pin 18 of IC 601 NO and connector YES Check pattern YES Is E...

Страница 34: ...C Auto stop during playback Is reel pulse applied to pin 79 Check reel sensor and 80 of IC 601 NO YES Is D FG applied to pin 89 Check connector and of IC 601 NO D FG circuits YES Check IC 601...

Страница 35: ...rum M T loading stop Is motor 12V supplied from P502 Check D822 D820 pin4 NO of Line Ever 12V YES NO Check power parts Is D speed CTL from P502 Check R508 C514 R509 pin 1 NO YES Check connector and mo...

Страница 36: ...or 14V supplied Check power Part NO YES Is the input of pin 5 of P501 Check circuit of NO R516 R513 C513 R514 YES Is pin 4 of P501 14V Check D821 YES NO Does pin 77 of IC 601 supply Check IC 601 C PWM...

Страница 37: ...F Drum M T and capstan M T rotate at regular speed IN REC MODE Is C sync applied to pin 58 Check C sync of video of IC 601 NO IC and pattern YES Check motor...

Страница 38: ...when plugging power cord Is ever 5V applied Check power Parts NO YES Does X602 crystal oscillate Check IC 601 and X602 NO YES Is CAM SW SW501 DATA correct Recheck connector and NO CAM SW contact SW501...

Страница 39: ...s not inserted Is motor 14V supplied Check power Parts NO YES CAM DATA is changed Check SW501 when CST IN NO NO YES Check Deck part Is 5V supplied at pin 81 82 Check pattern of IC601 NO R614 R615 YES...

Страница 40: ...I LED does not operate Is 5V supplied to pin 37 of Check power circuit IC601 NO YES Is pulse applied to pin 1 5 Check IC601 OF LD701 NO YES check LD701...

Страница 41: ...ircuit 87 of IC301 NO YES Is CLK DATA signal Check IC 601 pin 71 72 input pin 23 24 of IC 301 NO YES Is signal output from pin 29 Check IC 301 pin 26 Q V sync of IC301 NO YES Is signal input into pin...

Страница 42: ...s signal output from Is 5Vsupplied at IC301 Check power IC301 pin 29 NO pin 16 55 58 NO circuit YES YES Change IC301 Is signal input into Change IC301 IC301 pin 20 NO YES Is video signal output Change...

Страница 43: ...r Is signal input into signal output from NO IC301 pin 36 38 IC 301 pin 43 57 59 YES Is 5V supplied at IC 301 Check power circuit pin 87 NO YES Is REC H signal supplied Check REC H IC 301 pin 30 NO YE...

Страница 44: ...NG OF OSD Character OSD Character Incorrect YES Is 5V supplied at IC 601 Check power circuit pin 53 98 99 NO YES Does X602 XS01 crystal Check X602 XS01 oscillate NO X602 14 3181 MHz XS01 17 733 MHz YE...

Страница 45: ...supplied to pin 75 of Check Power circuit IC301 NO YES Is signal input pin 76 of IC301 Check INPUT JACK NO YES Is 0V supplied to pin 10 of Check SYSCON circuit IC301 NO YES Is there output at pin 96...

Страница 46: ...t at pin 96 of Is 5V applied to pin 75 of Check power IC301 NO IC301 NO circuit YES YES Check Modulator or Output JACK Is 0V supplied to pin 10 of Check IC601 IC301 NO YES Is 0V Collector of Q203 Chec...

Страница 47: ...C301 0V Check IC601 NO YES Is there output at pin 7 of Check IC301 IC301 NO YES Is there 70kHz signal at pin 4 of Is the voltage above 4 8V at Check Power P201 NO Collector of Q202 NO circuit YES YES...

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