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DAEWOO ELECTRONICS DC-B83D1D Service Manual
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DAEWOO ELECTRONICS DC-B83D1D Service Manual

DAEWOO ELECTRONICS DC-B83D1D Service Manual

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DVH-100A

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Summary of Contents for DAEWOO ELECTRONICS DC-B83D1D

  • Page 1 DVH-100A...

  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS .......................2 ADVANTAGES OF THIS PRODUCT..................3 TROUBLE SHOOTING........................5 WAVEFORMS ..........................23 CIRCUIT DIAGRAM........................26 PCB CIRCUIT BOARD........................36 INSTRUMENT DISASSEMBLY .....................39 ELECTRICAL PARTSLIST......................45...

  • Page 3: Specifications

    SPECIFICATIONS Power 200-240V~, 50/60Hz Consumed electricity Weight 4.6kg Dimension (W x H x D) 435mmx93mmx255mm Operative temperature +5°C~40°C Installation condition Horizontal / Relative humidity under 80% Laser output 5mW (continuous wave max.) Wave length 635nm (DVD), 730nm (CD) Signal type PAL COLOR Antenna Input/output U/V-mixed: 75Ω...

  • Page 4: Advantages Of This Product

    ADVANTAGES OF THIS PRODUCT • DVD, VCD, CD, CD-R(MP3), CD-RW, VHS • Watching DVD for recording broadcast • Integrated remote control (VCR, DVD) • VISS function • Multiplex sound playback/record • High Sound Quality of 6 head Hi-Fi • Simple record function •...
  • Page 5 ADVANTAGES OF THIS PRODUCT • Multi Subtitle function (DVD) The subtitle can be seem in up to 32 languages. In the case of SVCD or VCD, it depends on the disc. (The number of subtitle languages depends on the software.) •...

  • Page 6: Troubleshooting

    TROUBLESHOOTING 1. POWER CIRCUIT CAUTION You must use insulated transformer during the first part test of POWER circuit. No power Exchange POWER CORD POWER cord is ok? Is 400V~200V voltage Check F801. obtained at C804 +? Output voltage of 2 Check IC501, IC701 parts is normal? Check...
  • Page 7 TROUBLESHOOTING 2. SYSTEM CIRCUIT A. LED DISPLAY No LED display. Is 5V obtained at IC701 Check R588, D857, L503, L860 pin #9, 25? Oscillation at IC701pin #1? Exchange IC701. Specific GRID/SEG doesn t function. Check IC 701 pin #22~24, 27, GRID output at PORT of IC701? 28, 30, 31.
  • Page 8 TROUBLESHOOTING B-1. Bad playback quality (1) Noise appears on the playback screen. Is noise diminished by tracking Re-adjust PATH. adjustment. Noise band is trembled up and Noise appears on the screen even Re-adjust PATH. down? though changing tape. Is there CTL pulse at IC501 Re-adjust the height of AC HEAD.
  • Page 9 TROUBLESHOOTING C. No broadcasting signal received No broadcasting signal received Is the output at IC501 pin# 61(CLK), Check IC 501. 60 (DATA) normal? Is SIF,Video output at TMI(RF101) Check TMI (RF101) Block. pin#16,19 normal? Is Video Signal input at IC501 Check IC301.
  • Page 10 TROUBLESHOOTING D. No CASSETTE Loading Cassette tape isn t inserted. Is 5V voltage obtained at Loading Check at EVER 14V parts IC501 pin#2? Check Q850. Is 14V voltage obtained at Check D851 and POWER circuit. Capstan Motor P501 pin#2? Connect Capstan and Loading Motor. Is 13V voltage obtained at Each Check connector and Capstan Motor.
  • Page 11 TROUBLESHOOTING F. DRUM Motor stops DRUM Motor stops. Is 14V voltage obtained at P501 Check EVER 14V pin#8? (Q850). Is DRUM PWM fit to IC 501 Check DRUM PG/FG pin#76? (IC 501 pin# 90). Is 2.6V voltage obtained at Check R534,R535,C519,C520. P501 pin#12? Check Capstan Motor and DRUM Motor.
  • Page 12 TROUBLESHOOTING 3. VIDEO circuit A. EE screen doesn t appear EE MODE Picture NG Is Video signal input at Check IF and LINE IN JACK. IC301 pin#48,50,52,54? Is 5V supplied at Check POWER circuit. pin#42,55,72,91of IC301? Check IC501 Is C.S, DATA, CLOCK signal pin #58,71,72.
  • Page 13 TROUBLESHOOTING B. Playback picture doesn t appear PB video signal missing. Is Envelope output from IC301 Is 5V supplied at IC301 pin#91? Check POWER 5V. pin#79? Is SW Pulse input at IC301 Check IC501 pin#18. pin#70? Clean head or Replace head. Is Y SIGNAL output at IC301 Is 5V obtained at IC301 pin#24, Check POWER 5V.
  • Page 14 TROUBLESHOOTING C. No recording Record video signal poor. Check EE MODE. Is luminance and color signal Is signal input into IC301 output from IC301 pin#78? pin# 48,50,52,54,56? Check POWER circuit. Is +5V supplied at IC301 pin#91? Check IC501 pin#45. Is IC301 pin#80 REC(H) HIGH? Is VIDEO SW Pulse input at IC301 Check IC501 pin#18.
  • Page 15 TROUBLESHOOTING D. No OSD(On Screen Display) appears No OSD appears. Is 5V obtained at IC501 pin# 53, Check POWER circuit. 98, 99? Is Video signal output at IC501 Is Video signal input at IC501 Replace IC501. pin#52? pin#50? Check IC 501. Check IC 501.
  • Page 16 TROUBLESHOOTING 4. AUDIO (Hi-Fi MODEL) A. No sound in E-E mode a. RF E-E No sound in RF E-E mode Is 5V obtained at IC051 pin#1? Check Power circuit. Is there SIF signal at IC051 pin#2 Check RF101. in RF mode? Is there SIF signal out at IC051 Check IC051.
  • Page 17 TROUBLESHOOTING b. AV1 E-E No sound in AV1 E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check Input AV1 JACK Is Audio signal at IC251 pin#6, 7? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
  • Page 18 TROUBLESHOOTING c. AV2 E-E No sound in AV2 E-E mode. Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check Input AV2 JACK Is Audio signal at IC251 pin#8, 9? Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
  • Page 19 TROUBLESHOOTING d. DVD E-E No sound in DVD E-E mode. Is there DVD Audio at ICD01 Check ICD01, DVD board pin#7,8? Is 12V obtained at ICD03 pin#8? Check POWER circuit. Is DVD Audio signaloutput at Check ICD03. ICD03 pin#1,7? Is Audio(DVD) signal at IC601 Check ICD03.
  • Page 20 TROUBLESHOOTING e. FRONT E-E No sound in Front E-E mode. Is Audio signal at IC601 pin#1, Check Input Front JACK. Is Audio signal output at IC601 pin Comparing with switching table, are SWA, B CTL SIGNAL #3, 13? right at IC601 pin #9,10? Check IC501.
  • Page 21 B. No Hi-Fi Playback audio(PLAY MODE) Is 12V obtained at IC251 pin#34? Check POWER circuit. Is 5V obtained at IC251 pin#40? Check A.SW at IC501 Is Audio signal at IC251 pin#41? pin#19. Is Audio signal output at IC251 Are CLK and DATA obtained at Replace IC251.
  • Page 22 C. No Hi-Fi playback in record/playback mode (REC MODE) Check input LINE1 JACK. Are there Audio signal Check input LINE2 JACK. at IC251 pin#4~9? Check ICD03(DVD). Is FM OSC signal at IC251 Replace IC251 pin#36? Is FM OSC signal at P401 pin#2? Replace DRUM.
  • Page 23 TROUBLESHOOTING E. No NORMAL AUDIO playback in record/playback mode(Check in REC mode) No Normal Audio playback in record/playback mode Check Input LINE1 JACK. Are there Audio signal at IC251 Check Input LINE2 JACK. pin#4~9? Check ICD03(DVD). Is there recording signal at Check IC251.

  • Page 24: Waveforms

    WAVEFORMS 1. VIDEO (IC301-70) 5Vp-p (IC301-70)5Vp-p (IC301-46) 520mVp-p (IC301-46) 520mVp-p 1V/2msec/cm 1V/2msec/cm 200mV/5usec/cm 200mV/5usec/cm PLAY PLAY (IC301-43) 520mVp-p (IC301-43) 520mVp-p (IC301-21) 600mVp-p (IC301-21) 350mVp-p 100mV/5usec 100mV/5usec 200mV/2msec/cm 200mV/2msec/cm PLAY PLAY(SP) VIDEO SW TRIG PLAY(EP) VIDEO SW TRIG (IC301-67) 4.6Vp-p (IC301-67) 4.6Vp-p (IC301-65) 2.2Vp-p (IC301-65) 2.2Vp-p 2V/10usec/cm...
  • Page 25 WAVEFORMS 2. AUDIO 2-1 AUDIO(Normal) (IC301-15) 100mVp-p (IC301-11) 1.5Vp-p (IC301-100) 2.3Vp-p (IC301-8) 120mVp-p 20mV/0.5msec/cm 0.5V/0.5msec/cm 0.5V/0.5msec/cm 50mV/0.5msec/cm PLAY (P202-2) 75Vp-p 10V/20µsec/cm 2-2 AUDIO(Hi-Fi) (IC251-2) 80mVp-p (IC251-24) 200mVp-p (IC251-34) 1.4Vp-p (IC251-32) 200mVp-p 20mV/0.5msec 50mV/0.5msec 0.5V/1msec 50mV/0.5msec EE/REC/PLAY EE/REC EE/REC (IC251-16) 1.4Vp-p 0.5V/0.5msec EE/REC...
  • Page 26 WAVEFORMS 3. SERVO/SYSCON “ (IC501-18) 5Vp-p (IC501-77) 5Vp-p (IC501-76) 5Vp-p (IC501-94) 3Vp-p 2V/5msec/cm 2V/5µsec/cm 2V/5µsec/cm 1V/5msec/cm REC/PLAY REC/PLAY REC/PLAY ‘ (IC501-97) 4.4Vp-p (IC501-90)25Vp-p&5Vp-p (IC501-87) 2.5Vp-p (IC501-38) 2.6Vp-p 1V/5msec/cm 1V/5msec/cm 1V/0.2msec/cm 0.5V/0.1µsec/cm PLAY REC/PLAY REC/PLAY REC/PLAY...

  • Page 27: Circuit Diagram

    CIRCUIT DIAGRAM 1. POWER SUPPLY CIRCUIT DIAGRAM...
  • Page 28 CIRCUIT DIAGRAM 2. SERVO & SYSCON CIRCUIT DIAGRAM...
  • Page 29 CIRCUIT DIAGRAM 3. VIDEO/AUDIO CIRCUIT DIAGRAM...
  • Page 30 CIRCUIT DIAGRAM 4. HiFi & SW & INPUT CIRCUIT DIAGRAM...
  • Page 31 CIRCUIT DIAGRAM 5. PIF CIRCUIT DIAGRAM...
  • Page 32 CIRCUIT DIAGRAM 6. DVD CIRCUIT DIAGRAM...
  • Page 33 CIRCUIT DIAGRAM...
  • Page 34 CIRCUIT DIAGRAM...
  • Page 35 CIRCUIT DIAGRAM...
  • Page 36 CIRCUIT DIAGRAM...

  • Page 37: Pcb Circuit Board

    PCB CIRCUIT BOARD 1-1 . VCR (MAIN)
  • Page 38 PCB CIRCUIT BOARD 1-2. POWER...
  • Page 39 PCB CIRCUIT BOARD 1-3. DVD (MAIN)

  • Page 40: Instrument Disassembly

    INSTRUMENT DISASSEMBLY 1. DECK DISASSEMBLY Perform all disassembly procedures in the order presented. When reassembling, use the reverse procedure. Make sure that all leads/ wiring are routed correctly when reassembling. A. TOP COVER REMOVAL @ Remove a screws # Remove a screws ! Remove three screws FIG.
  • Page 41 INSTRUMENT DISASSEMBLY B. PANEL FRONT DISASSEMBLY @ Remove 2 Hooks at left and right sides, Simultaneously, remove panel. ! Remove 3 Hooks at bottom FIG.2 C. LOGIC PCB DISASSEMBLY Remove 2 screws, then remove Logic FIG.3...
  • Page 42 INSTRUMENT DISASSEMBLY D. DECK AND MAIN PARTS DISASSEMBLY ! Remove 6 screws, then remove DECK @ Remove 4 screws, then remove LOADER # Remove 3 screws, then remove POWER PCB FIG. 4...
  • Page 43 INSTRUMENT DISASSEMBLY E. MAIN PCB DISASSEMBLY @ Remove 2 screws, then remove MAIN PCB ! Remove 2 screws FIG. 5...
  • Page 44 INSTRUMENT DISASSEMBLY F. MAIN CHASSIS DISASSEMBLY ! Remove 4 screws, then remove MAIN FIG. 6...
  • Page 45 INSTRUMENT DISASSEMBLY G. Explode view...

  • Page 46: Electrical Partslist

    ELECTRICAL PARTSLIST Caution: In this Service 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) PARTS_CODE PARTS_NAME PARTS_DESCR...
  • Page 47 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C370 HCFH474ZBA C CHIP CERA 25V Y5V 0.47MF Z 1608 SECAM ONLY CD20 HCQK561JBA C CHIP CERA 50V CH 560PF J 1608 C371 HCFH474ZBA C CHIP CERA 25V Y5V 0.47MF Z 1608 SECAM ONLY CD26 HCBK182KBA...
  • Page 48 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R205 HRFS752JBA R CHIP 1/16 7.5K OHM J 1608 R516 HRFS103JBA R CHIP 1/16 10K OHM J 1608 R206 HRFS273JBA R CHIP 1/16 27K OHM J 1608 R517 HRFS102JBA R CHIP 1/16 1K OHM J 1608 R208 HRFS512JBA...
  • Page 49 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK RD15 HRFS113JBA R CHIP 1/16 11K OHM J 1608 Z0012 PVMPJRS202 PCB MAIN RADIAL AS DC-B87D1S-NA RD16 HRFS561JBA R CHIP 1/16 560 OHM J 1608 C001 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 PAL ONLY RD17 HRFS132JBA...
  • Page 50 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C327 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP CD62 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP C331 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 CD72 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP C332 CEXF1C100A...
  • Page 51 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK SW517 5S50101Z97 SW TACT THVV952GBA 9.5M AUTO D616 DZUZ13BSB- DIODE ZENER UZ-13BSB(12.59-13.16V) SW7B5 5S50101Z90 SW TACT THVV502GDA D617 DZUZ13BSB- DIODE ZENER UZ-13BSB(12.59-13.16V) SW7C1 5S50101Z90 SW TACT THVV502GDA D619 DZUZ5R6BSB DIODE ZENER UZ-5.6BSB(5.46-5.70V) SW7C2 5S50101Z90 SW TACT...
  • Page 52 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R269 RD-AZ272J- R CARBON FILM 1/6 2.7K OHM J R638 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R276 RD-AZ183J- R CARBON FILM 1/6 18K OHM J R644 RD-4Z751J- R CARBON FILM 1/4 750 OHM J R277 RD-AZ511J-...
  • Page 53 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK CA20 HCBF224KBA C CHIP CERA 16V X7R 0.22MF K 1608 CD13 HCFH104ZBA C CHIP CERA 25V Y5V 0.1MF Z 1608 CA21 HCBK471KBA C CHIP CERA 50V X7R 470PF K 1608 CD14 HCFH104ZBA C CHIP CERA...
  • Page 54 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK LP20 HLX1210001 BEAD CHIP TB201209Z121 RC29 HRFS103JBA R CHIP 1/16 10K OHM J 1608 QA11 TZHU002N-Q FET CHIP RHU002N06 T106 SOT-323 60V 0.2A RC30 HRFS330JBA R CHIP 1/16 33 OHM J 1608 QA12 T2SB1132-B TR CHIP...
  • Page 55 ELECTRICAL PARTSLIST PARTS_CODE PARTS_NAME PARTS_DESCR REMARK PARTS_CODE PARTS_NAME PARTS_DESCR REMARK CA74 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP C806 CBXB3A331K C CERA SEMI 1KV RR 330PF K CC42 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C807 CMXL2G333K C MYLAR 400V MEU 0.033MF K CC43 CEXF1H109A...
  • Page 56 ELECTRICAL PARTSLIST * OPTION TABLE OPTION DIODE(D50*) : DZN4148 - - -(1N4148 AUTO 52MM) 1. SYSTEM SYSTEM D501 D502 D503 PAL BG PAL BG(AUSTRALIA) PAL BG/DK(MIDDLE EAST) PAL II(S.AFRICA) PAL II SECAM LL’ SECAM LL’(SWISS) PAL BG/DK 2. Hi-Fi/ Mono 3.
  • Page 57 DAEWOO ELECTRONICS Corp. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA...

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