Daewoo SD-8100 Service Manual

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Summary of Contents:

[Page 1] Daewoo SD-8100

SERVICE MANUAL SD-8100 ...

[Page 2] Daewoo SD-8100

2 SPECIFICATIONS DVD Audio output standards Power 100-240V~, 50/60Hz Consumed electricity Hi-Fi : 27W, Mono : 26W Weight 5.7kg Dimension (W x H x D) 430mmx91mmx355.5mm Operative temperature +5°C~40°C Installation condition Horizontal / Relative hu...

[Page 3] Daewoo SD-8100

ADVANTAGES OF THIS PRODUCT 3 • DVD, VCD, CD, CD-R(MP3), CD-RW, VHS • DVD one-touch record function • Watching DVD for recording broadcast • Integrated remote control (VCR, DVD) • VISS function • Multiplex sound playback/record (Hi-Fi ...

[Page 4] Daewoo SD-8100

4 ADVANTAGES OF THIS PRODUCT • Slow Forward / Reverse playback (DVD) • Fast Forward / Reverse playback • Search of title, chapter, and time in DVD disc, and search of track and time in VCD and CD • Various TV aspect (DVD) 4:3 for Pan and ...

[Page 5] Daewoo SD-8100

5 TROUBLESHOOTING 1. POWER CIRCUIT ✓ CAUTION You must use insulated trance during the first part test of POWER circuit. Check IC601,IC701. No power POWER cord is ok? Is 400~140V voltage obtained at C805 +? Output voltage of 2 nd parts is normal? C...

[Page 6] Daewoo SD-8100

2. SYSTEM CIRCUIT 6 TROUBLESHOOTING No VFD display. Is 5V obtained at IC701 pin#1? Is -26V obtained at IC701 pin#16~17? Oscillation at IC701 pin #2? Is -22V, -18V obtained at F F+? Specific GRID/SEG doesn’t function. Check D701. Check POWER circui...

[Page 7] Daewoo SD-8100

7 TROUBLESHOOTING No power compensation. Voltage of power fail (IC601 pin#3) at micom is 0.7V over? More than 3.2V is maintained for 1 minutes at IC601 pin#37 during Power Cord Open. Check R644. NO YES B. No power compensation. YES Check RESET circui...

[Page 8] Daewoo SD-8100

8 TROUBLESHOOTING Noise appears on the playback screen. Is noise diminished by tracking adjustment. Noise band is trembled up and down? Re-adjust PATH. Is the height of CTL HEAD normal? No dust? Is there problem in CTL Input circuit and amplifier. Y...

[Page 9] Daewoo SD-8100

9 TROUBLESHOOTING Noise appears on the Full playback screen. Are SW pulse and HA SW normal? Recheck step C-1 (Bad playback quallty (1)). Check HEAD AMP connector and HEAD. YES YES NO NO ENVE Wave at PT01 pin #4? Check VIDEO circuit. Are there SW, HA ...

[Page 10] Daewoo SD-8100

10 TROUBLESHOOTING Cassette tape isn’t inserted. Is 5V voltage obtained at Loading parts IC604 pin#82? Is 13V voltage obtained at Capstan Motor pin#8? Check at ON/OFF 12. Check (D822, Q821). Connect Capstan and Loading Motor. Check connector and Ca...

[Page 11] Daewoo SD-8100

11 TROUBLESHOOTING G. DRUM Motor stops H. CAPSTAN doesn’t rotate CAPSTAN doesn’t rotate. Is 14V voltage obtained at P603 pin#2? YES NO NO NO YES YES Is Capstan PWM fit to IC 601 pin#77? Is 3.2V voltage obtained at P603 pin#5? Is 2~3V voltage obta...

[Page 12] Daewoo SD-8100

12 TROUBLESHOOTING 3. VIDEO circuit EE screen doesn’t appear. Is Video signal input at IC301 pin#48,50,52,54? Is 5V obtained at IC301 pin#24, 42, 55, 72, 91? Is signal input at IC302 pin#1,5,12,13,14,15? Check LINE JACK and IF circuit. Check DVD c...

[Page 13] Daewoo SD-8100

13 TROUBLESHOOTING B. Playback picture doesn’t appear YES YES Is Y signal output at IC301 pin#46? Is Y signal input at IC301 pin#43? Is Video signal output at IC302 pin#3? Check and Replace IC301. Check PCB Pattern. Playback picture doesn’t appea...

[Page 14] Daewoo SD-8100

14 TROUBLESHOOTING Is 5V obtained at IC301 pin#91? YES NO NO NO YES YES Is IC301 pin#80 REC(H) HIGH? Is VIDEO SW Pulse input at 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 Connec...

[Page 15] Daewoo SD-8100

15 TROUBLESHOOTING D. No sound in broadcasting (Stereo) Is 5V obtained at IC121 pin#1, 11, 33? Oscillation of IC121 pin#5,6? YES NO NO NO YES YES Is SIF output from RF121 pin#18 to IC121 pin#2? Is AUDIO output at IC121 pin#26, 27? Check IC251 pin#2...

[Page 16] Daewoo SD-8100

16 TROUBLESHOOTING 4. AUDIO (Hi-Fi MODEL) No sound in RF E-E mode Is there Audio at IC252 pin#4,11? IC601 pin#27 A.Mute is L or H? A. No sound in E-E mode A. a.1 RF E-E NO Check IC101, RF101 block. Is 12V obtained at IC252 pin#16? Is RF Audio signa...

[Page 17] Daewoo SD-8100

17 TROUBLESHOOTING Is there Audio IC252 pin#2,15? IC601 pin#27 A.Mute is L or H? A. b. AV1 E-E YES NO Check Input JACK. Is 12V obtained at IC252 pin 16? Is RF Audio signal output at IC252 pin#3,13? Check POWER circuit. YES NO IC601 pin#31 is H, pin#2...

[Page 18] Daewoo SD-8100

18 TROUBLESHOOTING Is there Audio at IC252 pin#1,12? IC601 pin#27 A.Mute is L or H? NO Check signal flow circuit from IC251 to IC252. Is 12V obtained at IC252 pin#16? Is AV2 Audio signal output at IC252 pin#3,13? Check POWER circuit. NO YES NO IC601...

[Page 19] Daewoo SD-8100

19 TROUBLESHOOTING No sound in AV-F E-E mode Is there Audio at IC253 pin#2,12 in AV-F mode? Is AV-F Audio signal output at IC253 pin#14,15? Is there AV-F Audio at IC252 pin#5,14? Is 12V obtained at IC253 pin#16? YES IC601 pin#27 A.Mute is L or H? C...

[Page 20] Daewoo SD-8100

20 TROUBLESHOOTING A. e1. DVD E-E No sound in DVD E-E mode. Is there Audio at IC253 pin#1,13 in DVD mode? Is DVD Audio signal output at IC253 pin#14,15? Is there DVD Auido at IC252 pin#5,14? Is 12V obtained at IC253 pin#16? YES IC601 pin#27 A.Mute i...

[Page 21] Daewoo SD-8100

21 TROUBLESHOOTING Are there CLOCK signal at P101 #6,7,8 and DATA signal at P101 #10? Are there CLOCK signal at ICD01 #1,3,16 and DATA signal at ICD01 #2? Is 3.3V obtained at ICD01 pin#5? Is 5V obtained at ICD01 pin #6? Check MPEG Board. Check POWER ...

[Page 22] Daewoo SD-8100

22 TROUBLESHOOTING Is playback audio signal output at IC252 pin#3,13? Is 12V obtained at IC252 pin#16? Replace IC252. NO IC601 pin#31 is L, pin#21 is L? Check IC601. NO Is there playback audio signal at IC251 pin#16,17? Replace IC251. NO Is there Aud...

[Page 23] Daewoo SD-8100

23 TROUBLESHOOTING No Hi-Fi Audio in record/playback mode IC251 pin#2, 3, IC251 pin#6, 7, IC251 pin#10, 11, IC251 pin#4,5 IC251 pin#8, 9. Is there Audio signal? REC ‘H’ BASE voltage at Q201 is 5V? Check IC101(MPX) Block. Check Input AV1 JACK. C...

[Page 24] Daewoo SD-8100

24 TROUBLESHOOTING D. No NORMAL AUDIO playback (PLAY MODE) No Normal Audio in playback mode Is there playback Audio signal at IC301 pin#11? Check R646,R647,R911,R913 YES NO NO Is about 3.5V obtained at IC252 pin#9, 10? Check A/C HEAD. Check IC301. YE...

[Page 25] Daewoo SD-8100

25 TROUBLESHOOTING E. No NORMAL Auido in record/playback mode(Check in REC mode) No Normal Audio in record/playback mode Is there recording signal at IC251 pin#21? Check signal flow circuit. YES NO NO Signal at IC251 pin#21 is transferred to IC301 ...

[Page 26] Daewoo SD-8100

26 WAVEFORMS 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 66 (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 EP PLAY/REC ...

[Page 27] Daewoo SD-8100

27 WAVEFORMS 15 9 P201-2 2. AUDIO 2-1 AUDIO(Mono) ...

[Page 28] Daewoo SD-8100

28 WAVEFORMS 2-2 AUDIO(HI-Fl) Q901-collector (IC601-38) 2.6Vp-p 0.5V/0.1µ sec/cm REC/PLAY (IC601-18) 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 1...

[Page 29] Daewoo SD-8100

29 CIRCUIT DIAGRAM 1. POWER SUPPLY SCHEMATIC DIAGRAM (PAL DVD COMBO FREE) ...

[Page 30] Daewoo SD-8100

30 CIRCUIT DIAGRAM 2. AV CIRCUIT DIAGRAM ...

[Page 31] Daewoo SD-8100

31 3. SERVO & SYSCON SCHEMATIC DIAGRAM CIRCUIT DIAGRAM ...

[Page 32] Daewoo SD-8100

32 4. DIGITAL AUDIO SCHEMATIC DIAGRAM CIRCUIT DIAGRAM ...

[Page 33] Daewoo SD-8100

33 5. HI FI & SW CIRCUIT DIAGRAM CIRCUIT DIAGRAM ...

[Page 34] Daewoo SD-8100

34 CIRCUIT DIAGRAM 6. IF/MPX/PDC/INPUT-OUTPUT SCHEMATIC DIAGRAM ...

[Page 35] Daewoo SD-8100

35 CIRCUIT DIAGRAM ATATI ...

[Page 36] Daewoo SD-8100

36 CIRCUIT DIAGRAM VCR-INT ...

[Page 37] Daewoo SD-8100

37 CIRCUIT DIAGRAM CPU ...

[Page 38] Daewoo SD-8100

38 CIRCUIT DIAGRAM DECODER ...

[Page 39] Daewoo SD-8100

39 PCB CIRCUIT BOARD 1-1 . VCR (MAIN) ...

[Page 40] Daewoo SD-8100

40 PCB CIRCUIT BOARD 1-2. POWER ...

[Page 41] Daewoo SD-8100

41 PCB CIRCUIT BOARD 1-3. LOGIC ...

[Page 42] Daewoo SD-8100

42 PCB CIRCUIT BOARD 2-1. DVD (MAIN)- A ...

[Page 43] Daewoo SD-8100

43 PCB CIRCUIT BOARD 2-2 . DVD (MAIN)- B ...

[Page 44] Daewoo SD-8100

44 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. FIG. 1 FIG. 2 A. LEG REM...

[Page 45] Daewoo SD-8100

45 INSTRUMENT DISASSEMBLY FIG. 3 C. PANEL FRONT DISASSEMBLY ...

[Page 46] Daewoo SD-8100

46 INSTRUMENT DISASSEMBLY FIG. 4 D. LOGIC PCB DISASSEMBLY ...

[Page 47] Daewoo SD-8100

47 INSTRUMENT DISASSEMBLY FIG. 5 E. DECK AND MAIN PARTS DISASSEMBLY ...

[Page 48] Daewoo SD-8100

48 INSTRUMENT DISASSEMBLY FIG. 6 F. MAIN PCB DISASSEMBLY ...

[Page 49] Daewoo SD-8100

49 INSTRUMENT DISASSEMBLY FIG. 7 G. MAIN CHASSIS DISASSEMBLY ...

[Page 50] Daewoo SD-8100

50 INSTRUMENT DISASSEMBLY FIG. 8 ...

[Page 51] Daewoo SD-8100

51 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK 03 PVMCASS152 CHASSIS MAIN AS DV6T711S-AQ A001 97P0612000 CHASSIS MAIN HIPS(HB) A0011 97P0800602 LEG PLASTOMER A0012 97P4219300 CUSHION LEG EVA A0013 97Q0804201 LEG-B HI-PS BK A0014...

[Page 52] Daewoo SD-8100

52 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C253 HCFH474ZCA C CHIP CERA 25V Y5V 0.47MF Z 2012 C254 HCFH474ZCA C CHIP CERA 25V Y5V 0.47MF Z 2012 C255 HCFH474ZCA C CHIP CERA 25V Y5V 0.47MF Z 2012 C256 HCFH474ZCA C CHIP CERA 25V...

[Page 53] Daewoo SD-8100

LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK ICD03 1NJM4580MC IC CHIP AMP NJM4580M L163 HLX1210001 BEAD CHIP TB201209Z121 L164 HLX1210001 BEAD CHIP TB201209Z121 L167 HLX1210001 BEAD CHIP TB201209Z121 L211 HLX1210001 BEAD CHIP TB201209Z121 L212 HLX121...

[Page 54] Daewoo SD-8100

54 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R665 HRFS103JBA R CHIP 1/16 10K OHM J 1608 R669 HRFS103JBA R CHIP 1/16 10K OHM J 1608 R670 HRFS331JBA R CHIP 1/16 330 OHM J 1608 R671 HRFS331JBA R CHIP 1/16 330 OHM J 1608 R859 ...

[Page 55] Daewoo SD-8100

LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK C275 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C276 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 C277 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP C280 CEXF1C470A C ELECTRO 16V RSM 47MF (5X7) TP C283 CEXF1C100A C ELECT...

[Page 56] Daewoo SD-8100

56 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK L306 5CPX101J2T COIL PEAKING 100UH(BRN-BRN) L307 5CPX100J2T COIL PEAKING 10UH(BRN-BLK) L311 5CPX100J2T COIL PEAKING 10UH(BRN-BLK) L361 5CPX101J2T COIL PEAKING 100UH(BRN-BRN) SECAM L...

[Page 57] Daewoo SD-8100

57 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK D601 DZN4004 - DIODE 1N4004(AUTO) D602 DZN4148 - DIODE 1N4148 AUTO 52MM D603 DZN4004 - DIODE 1N4004(AUTO) D604 DZUZ3R9BSA DIODE ZENER UZ-3.9BSA(3.77-3.98V) D608 DZN4004 - DIODE 1N40...

[Page 58] Daewoo SD-8100

58 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R316 RD-AZ151J- R CARBON FILM 1/6 150 OHM J R317 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R320 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R321 85801060TA WIRE COPPER 0.6X52MM TAPING R323 R...

[Page 59] Daewoo SD-8100

59 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK P702 97P62T08D6 CONN B/B TRC-XP PLUG 1.25MM 6P P703 97P62M10CL CONN HOUSING 35234-2010(LOGIC) Z0031 PVLAJ1E096 PCB LOGIC CHIP AS DV6T711D-AQ C702 HCFH104ZBA C CHIP CERA 25V Y5V 0.1M...

[Page 60] Daewoo SD-8100

60 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK L823 56C220K695 COIL CHOKE(CAP TYPE) 22UH K (CAP TYPE) 9X11.1 Z8012 PVPWJAE096 POWER AXIAL AUTO AS DV6T711D-AQ D802 DZEG01C - DIODE EG01C D803 DZEU01Z - DIODE EU01Z D821 DZEU01Z - D...

[Page 61] Daewoo SD-8100

LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK L1 HLM189MD3B L CHIP MULTI 1.8UH 20% 2012 L403 HLW220KL4B L CHIP WOUNDER 22UH K LEMCT220K 3225 L404 HLW220KL4B L CHIP WOUNDER 22UH K LEMCT220K 3225 L405 HLW220KL4B L CHIP WOUNDER 22UH K LEMCT220K 3225 L486...

[Page 62] Daewoo SD-8100

62 LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK R571 HRFS101JBA R CHIP 1/16 100 OHM J 1608 R573 HRFS101JBA R CHIP 1/16 100 OHM J 1608 R574 HRFS101JBA R CHIP 1/16 100 OHM J 1608 R577 HRFS102JBA R CHIP 1/16 1K OHM J 1608 R578 HRFS102JBA R CHIP 1/16...

[Page 63] Daewoo SD-8100

63 ELECTRICAL PARTSLIST LOC PARTS_CODE PARTS_NAME PARTS_DESCR REMARK Z003 PVLAMSE175 PCB LOGIC MANUAL AS DV6T721D-AQ G701 DHNV10SM18 DIGITRON HNV-10SM18 G701A 97P2348100 HOLDER DIGITRON PP H701 1TS0P2238Y IC UNIT R/RECEIVER TSOP2238YA1 JK701 97P63169...