Daewoo DTQ-29U1SCV Service Manual
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Daewoo DTQ-29U1SCV Service Manual

Daewoo DTQ-29U1SCV Service Manual

Color television
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Service Manual

Color Television
CHSSIS MODEL
CN-400FN
CN-401FN
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.
S/M No : TCN400FNF0
DTQ-29U1SCV
DTQ-29U1SSFV
DTQ-29U1SCSV
DTQ-29U5SSFV
DTQ-29U4SCV
JUNE. 2005

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Summary of Contents for Daewoo DTQ-29U1SCV

  • Page 1: Service Manual

    S/M No : TCN400FNF0 Service Manual Color Television CHSSIS MODEL CN-400FN DTQ-29U1SCV DTQ-29U1SSFV DTQ-29U1SCSV DTQ-29U5SSFV CN-401FN DTQ-29U4SCV 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.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY PRECAUTIONS SPECIFICATIONS CIRCUIT BLOCK DIAGRAM ALIGNMENT INSTRUCTIONS YOUR REMOTE CONTROL SERVICE MODE ADJUSTMENT ASSEMBLY ADJUSTMENT APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION UOC III SERIES TDA8358J VERTICAL AMPLIFIER TDA6107AJF 24WC16-16 KB EEPROM LA42072N-E AUDIO AMPLIFIER STR-W6735/56 WAVEFORMS TROUBLE SHOOTING GUIDE...

  • Page 3: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM...

  • Page 4: Alignment Instructions

    ALIGNMENT INSTRUCTION 1. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. - Turn the set on.

  • Page 5: Alignment Instruction

    ALIGNMENT INSTRUCTION Table-B. CN-400FN(DTQ-29U1SCV) EEPROM DATA MODE NAME REMARKS MODE NAME REMARKS HEAT RUN RUN OFF OEC : 650V PWLDAC SCREEN ADJUST RCA : 850V AGC LEVEL IFOFF S7-2 CHSE BPBS RF:0, AV:1 CBPS Fine Tunning FILTBW IDMOD OVMTHR R-GAIN...

  • Page 6: Assembly Adjustment

    ALIGNMENT INSTRUCTION 2. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT (S2) Enter the service mode and select service adjustment S2. You can see the one horizontal line on the screen. Adjust the Screen Control Volume (located on FBT) so that the horizontal line onscreen may be disappeared.
  • Page 7 ALIGNMENT INSTRUCTION 4-1). Horizontal Position Adjustment Select H.CENTER item, adjust H.CENTER data value to obtain proper horizontal centering of the internal cross pattern at the left and right of the screen. 4-2). Vertical Position Adjustment Select V.SLOPE item, adjust V.SLOPE data value to equalize half the screen with center of the picture.
  • Page 8 ALIGNMENT INSTRUCTION 4-4). EAST / WEST Adjustment Adjust the H.PARALLEL, H.SIZE, H-BOW, PARABOLA, EW TRAPEZ, CORNER TOP, CORNER BOTTOM to compensate for geometrical distortion. H.PARALLEL H.SIZE PARABOLA CORNER TOP, CORNER BOTTOM EW TRAPEZ -12-...
  • Page 9 ALIGNMENT INSTRUCTION 5) WHITE BALANCE ADJUSTMENT(S8) Receive a good local channel. Enter the service mode and select service adjustment S8. You can see the OSD as shown in below. R-GAIN SRC R-BIAS G-GAIN SRC G-BIAS B-GAIN CVI R-BIAS R-BIAS CVI G-BIAS G-BIAS SELECT ADJUST...

  • Page 10: Ic Description

    IC DESCRIPTION 1. UOC III RERIES 1-1. UOC III BLOCK DIAGRAM -14-...
  • Page 11 IC DESCRIPTION -19-...
  • Page 12 IC DESCRIPTION -20-...
  • Page 13 IC DESCRIPTION -21-...
  • Page 14 IC DESCRIPTION -22-...
  • Page 15 IC DESCRIPTION 5. LA42072N-E AUDIO AMPLIFIER 5. LA42072N-E AUDIO AMPLIFIER LA42000 series is power IC which made Pin compatible possible a ltogether in 5 to 15W. They consist of four kinds of power ICs. (mono, stereo, mono with volume function , stereo with volume function.£' They realized PCB layout communalization of an audio power bloc k of TV.
  • Page 16 IC DESCRIPTION 6. STR-W6735 FUNCTIONS OF EACH TERMINAL TERMINAL SYMBOLS DESCRIPTIONS FUNCTIONS DRAIN TERMINAL MOSFET DRAIN S/GND SOURCE/GND MOSFET SOURCE / GND INPUT OF POWER SUPPLY SET UP TERMINAL FOR CONTROL CIRCUIT DELAY AT OVERLOAD / OVERLOAD PROTECTION SS/OLP SOFT START SET UP AND SOFT START TERMINAL OPERATION TIME SET UP...
  • Page 17 IC DESCRIPTION ELECTRICAL CHARACTERISTICS IN CONTROL PART (Ta=25¡ , Vcc=20V, UNLESS OTHERWISE SPECIFIED) RATINGS PARAMETER TERMINAL SYMBOL UNITES POWER SUPPLY START-UP OPERATION OPERATION START VOLTAGE Vcc(on) 16.3 18.2 19.9 OPERATION STOP VOLTAGE Vcc(off) 10.6 CIRCUIT CURRENT IN OPERATION Icc(on) CIRCUIT CURRENT IN NON-OPERATION Icc(off) OSCILLATION FREQUENCY fosc...

  • Page 18: Uoc Iii Series

    IC DESCRIPTION UOC III SERIES HERCULES FULL-STEREO (SSDIP90) (standard version) -26-...
  • Page 19 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION VSSP2 ground VSSC4 ground VDDC4 digital supply to SDACs (1.8V) VDDA3(3.3V) supply (3.3 V) VREF_POS_LSL positive reference voltage SDAC (3.3 V) VREF_NEG_LSL+HPL negative reference voltage SDAC (0 V) VREF_POS_LSR+HPR positive reference voltage SDAC (3.3 V) VREF_NEG_HPL+HPR negative reference voltage SDAC (0 V) VREF_POS_HPR...
  • Page 20 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION VIFIN2 IF input 2 vertical sawtooth capacitor IREF reference current input GNDIF ground connection for IF ampli er SIFIN1/DVBIN1 SIF input 1 / DVB input 1 SIFIN2/DVBIN2 SIF input 2 / DVB input 2 AGCOUT tuner AGC output EHTO...
  • Page 21 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION AGC2SIF 44/- 47/- AGC capacitor second sound IF supply voltage TV processor (+5 V) IFVO/SVO/CVBSI IF video output / selected CVBS output / CVBS input AUDIOIN4 audio 4 input AUDIOIN4L audio-4 input (left signal) AUDIOIN4R audio-4 input (right signal)
  • Page 22 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION scan velocity modulation output FBISO/CSY ybac k input/sandcastle output or composite H/V timing output HOUT horizontal output VSScomb ground connection for comb lter VDDcomb supply voltage for comb lter (5 V) VIN (R/P IN2/C V-input for YUV interface (2...
  • Page 23 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION VDDA1 analog supply for TCG m -Controller and digital supply for TV-processor (+3.3 V) VREFAD_NEG negative reference voltage (0 V) VREFAD_POS positive reference voltage (3.3 V) VREFAD reference voltage for audio ADCs (3.3/2 V) GNDA ground VDDA(1.8V)
  • Page 24 IC DESCRIPTION STANDARD FACE DO WN VERSION VERSION SYMBOL DESCRIPTION P1.6/SCL port 1.6 or I C-bus clock line P1.7/SDA port 1.7 or I C-bus data line VDDP(3.3V) supply to periphery and on-chip voltage regulator (3.3 V) P2.0/TPWM port 2.0 or Tuning PWM output P2.1/PWM0 port 2.1 or PWM0 output P2.2/PWM1...

  • Page 25: Waveforms

    WAVEFORMS Appendix WAVEFORMS 1).I801 PIN1 2).T402(FBT) HOR.OUT 3).T402(FBT) 190V(D406) 4).I701 PIN73 HOUT 5).I701 PIN76 V+.OUT 6).I701 PIN76 V-.OUT -33-...
  • Page 26 WAVEFORMS Appendix 7).I701 PIN75 EW OUT 8).I701 PIN46 MONITOR OUT 9).I701 (X-TAL) 10).I301 PIN4 V.OUT 11).I901 PIN R.IN 12).I901 PIN R.OUT -34-...

  • Page 27: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Appendix 1. NO POWER -35-...

  • Page 28: No Picture

    TROUBLESHOOTING GUIDE Appendix 2. NO PICTURE NG : Go To The Figure (A) Check The Waveform of TU101 IF PIN OK : Go To The Figure (B) TU101 TUNER CHECK VOLTAGE CHECK CLOCK,DATA Z101 Z101 CHECK THE SAW FILTER SAW FILTER VOLTAGE SCL/SD #22,43,45,63,80...

  • Page 29: No Sound

    TROUBLESHOOTING GUIDE Appendix 3. NO SOUND NG : Go To The Figure (C) Check The Output Signal of I701 #57,58 OK : Go To The Figure (D) TU101 TUNER CHECK VOLTAGE CHECK CLOCK,DATA Z101 Z101 SAW FILTER SAW FILTER SCL/SD #7,8 I701 #22,43,45,63,80...

  • Page 30: Ch Don't Memory Or Skip

    TROUBLESHOOTING GUIDE Appendix 4. CH DON’T MEMORY or SKIP NG : Loss of Signal or Weak Signal Check The Iutput Signal Conditions OK : Go To The Figure (E) TU101 TUNER CHECK CHECK CLOCK,DATA VOLTAGE Z101 Z101 SAW FILTER SAW FILTER I702 EEPROM #5,6...

  • Page 31: No Color

    TROUBLESHOOTING GUIDE Appendix 5. NO COLOR CHECK THE VOLTAGE CHECK THE #83,84,85 #22,43,45,63,80 RGB OUT I701 3.3V #9,16,86,88 #18,19 CHECK THE CHECK THE X701 CRYSTAL CRYSTAL 24.576MHz 6. NO VERTICAL DEFLECTION I701 CHECK THE VERTICAL SIGNAL VERTICAL #76,77 CHECK THE CRYSTAL #18,19 X701...

  • Page 32: Remote Control Doesnot Operate

    TROUBLESHOOTING GUIDE Appendix 7. REMOTE CONTROL DOES NOT OPERATE CHECK THE VOLTAGE #22,43,45,63,80 I701 3.3V #9,16,86,88 #18,19 CHECK THE CHECK THE X701 CRYSTAL CRYSTAL 24.576MHz CHECK THE WAVEFORM CHECK THE IF01 VOLTAGE IC PREAMP 3.3V -40-...

  • Page 33: Electrical Parts List

    : 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) **This BOM is based on DTQ-29U1SCV PARTS CODE PARTS NAME...
  • Page 34 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C408 CMYH3C702J C MYLAR 1.6KV BUP 7000PF J C409 CMYE2G273J C MYLAR 400V PU 0.027MF J C801 CL1UC3474M C LINE ACROSS 0.47MF 1J(UCVSNDF/SV)+Q/O C802 CL1UC3474M C LINE ACROSS 0.47MF 1J(UCVSNDF/SV)+Q/O C806 CEYD2D331D C ELECTRO...
  • Page 35 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK M681 4853747800 RETA PCB NYLON 66 M682 4853747800 RETA PCB NYLON 66 M683 4853747800 RETA PCB NYLON 66 PA906 4850708S03 CONNECTOR YH025-08+YST025+ULW=500 PW801 4859907810 CORD POWER AS ME301P+TER=2100 Q401 TKTC3229— KTC3229 Q402 PTH2SW7609...
  • Page 36 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK PA907 485923182S CONN WAFER YW025-05 (STICK) R106 RS02Z512JS R M-OXIDE FILM 2W 5.1K OHM J SMALL R305 RS02Z129JS R M-OXIDE FILM 2W 1.2 OHM J SMALL R401 RS02Z100JS R M-OXIDE FILM 2W 10 OHM J SMALL R402 RS02Z121JS...
  • Page 37 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C405 CCXB2H561K C CERA 500V B 560PF K (TAPPING) C413 CEXF1H470V C ELECTRO 50V RSS 47MF (6.3X11) TP C414 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C416 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C418 CCXB2H102K...
  • Page 38 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C732 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) C734 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) C735 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP C737 CBXF1H104Z C CERA SEMI 50V F 0.1MF Z (TAPPING) C740 CEXF1C101V...
  • Page 39 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK A001 4859818691 PCB MAIN 330X246 D1B C107 CZSL1H470J C CERA 50V SL 47PF J (AXIAL) C108 CZSL1H470J C CERA 50V SL 47PF J (AXIAL) C109 CCZF1H103Z C CERA 50V F 0.01MF Z C110 CCZB1H222K C CERA...
  • Page 40 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK D706 DUZ3R3B—- DIODE ZENER UZ-3.3B D805 D1N4937G— DIODE 1N4937G (TAPPING) D806 D1N4937G— DIODE 1N4937G (TAPPING) D807 D1N4937G— DIODE 1N4937G (TAPPING) D808 DMTZJ6R2C- DIODE ZENER MTZJ 6.2C D810 D1N4937G— DIODE 1N4937G (TAPPING) D812 DRGP15J—- DIODE...
  • Page 41 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R121 RD-AZ183J- R CARBON FILM 1/6 18K OHM J R201 RD-AZ224J- R CARBON FILM 1/6 220K OHM J R203 RN-AZ1801F R METAL FILM 1/6 1.8K OHM F R204 RD-4Z222J- R CARBON FILM 1/4 2.2K OHM J R213 RD-AZ750J-...
  • Page 42 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R630 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R632 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R633 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R634 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R635 RD-AZ103J-...
  • Page 43 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R777 RD-AZ332J- R CARBON FILM 1/6 3.3K OHM J R778 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R779 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R780 RN-AZ5600F R METAL FILM 1/6 560 OHM F R803 RD-4Z479J-...
  • Page 44 ZA07 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZA08 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZZ300 PTCPMSK142 PCB CRT MANUAL AS DTQ-29U1SCV I901 PTE3SW1100 HEAT SINK ASS’Y 1TDA6107AJ + 7174300811 00001 1TDA6107AJ IC VIDEO TDA6107AJF 0000A 4857031100 HEAT SINK A1050P-H24 T2.0...

  • Page 45: Different Parts List

    DIFFERENT PARTS LIST **This BOM is based on DTQ-29U1SCV, it is different parts list in comparison with DTQ-29U1SSFV. PARTS CODE PARTS NAME PARTS DESCRIPTION 1 00001 1STRW6756- IC POWER STR-W6756 2 0000A 4857027602 HEAT SINK AL EX BK 3 0000B...
  • Page 46 **This BOM is based on DTQ-29U1SCV, it is different parts list in comparison with DTQ-29U5SSFV. PARTS CODE PARTS NAME PARTS DESCRIPTION 1 00001 1STRW6756- IC POWER STR-W6756 2 0000A 4857027602 HEAT SINK AL EX BK 3 AD001 4859000240 ADAPTER 2P15A 300V(D=4.0)
  • Page 47 **This BOM is based on DTQ-29U1SCV, it is different parts list in comparison with DTQ-29U4SCV. PARTS CODE PARTS CODE PARTS NAME PARTS NAME PARTS DESCRIPTION PARTS DESCRIPTION 1 A001 4859819191 PCB MAIN 330X246 D1B 2 C118 CMXL1J154J C MYLAR 63V MEU 0.15MF J...
  • Page 48 -59-...
  • Page 49 -60-...
  • Page 50 REMARKS PART CODE PART NAME MATERIAL Q’ty Designed by Checked by Inspected by Approved by PART NAME UNITS DEVELOPMENT DWG SCALE 01.09.26 DTQ-29U1 MODEL DAEWOO Electronics Corp. 485009KR Mechani c al Desi g n Team, TV Research Center REFERENCE -61-...
  • Page 51 REMARKS PART CODE PART NAME MATERIAL Q’ty Designed by Checked by Inspected by Approved by PART NAME UNITS DEVELOPMENT DWG SCALE 01.09.26 DTQ-29U5 MODEL DAEWOO Electronics Corp. 485009KU Mechani c al Desi g n Team, TV Research Center REFERENCE -62-...
  • Page 52 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : JUNE. 2005...

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Dtq-29u1ssfvDtq-29u5ssfvDtq-29u1scsvDtq-29u4scvCn-400fnCn-401fn

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