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Daewoo DTQ-29U1SCV Service Manual

Color television
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See also: Service Manual , Instruction Manual
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
Apr. 2005

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Summary of Contents for Daewoo DTQ-29U1SCV

  • Page 1 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 ELECTRICAL PARTS LIST DIFFERENT PARTS LIST SCHEMATIC DIAGRAM EXPLODE VIEW PRINTED CIRCUIT BOARD APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION WAVEFORMS TROUBLE SHOOTING GUIDE NO POWER...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION.
  • Page 4 SAFETY PRECAUTIONS CAUTION : Do not attempt to modify this product in any way. Unau- The lightning flash with arrowhead symbol, thorized modifications will not only void the warranty, but may lead to your within an equilateral triangle, is intended to alert being liable for any resulting property damage or user injury.
  • Page 5 SAFETY PRECAUTIONS SUBJECT : IMPLOSION 4. Wall and shelf mounted installations using a commercial mounting kit, must follow the factory approved mounting instructions. A 1. All direct viewed picture tubes are equipped with an integral implo- receiver mounted to a shelf or platform must retain its original sion protection system, but care should be taken to avoid damage feet(or the equivalent thickness in spacers) to provide adequate are during installation.

  • Page 6: Specifications

    SPECIFICTION Model DTQ-29U4SCV DTQ-29U1SCV, DTQ-29U1SCSV Item CHASSIS CN-401FN CN-400FN TV Standard NTSC-M Power Input AC 120v, 60Hz Power Consumption 107W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69...

  • Page 7: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM...

  • Page 8: Alignment Instructions

    ALIGNMENT INSTRUCTION Your Remote Control(R-48C04) 1. POWER Use this button to turn your TV on or off. 2. MUTE Use to turn the TV’s sound on and off. 3. WCHV Use these buttons to change channels on your TV, or select items in the menu system. 4.

  • Page 9: Service Mode Adjustment

    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 10 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 11: 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 12 ALIGNMENT INSTRUCTION 4) 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...

  • Page 13: 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 14 TT2 WAS 3X10 MFZN M684 4856812001 TIE CABLE NYLON66 DA100 P201A 4850705N21 CONNECTOR YH025-05+YBNH250+USW=400 ZZ200 PTJAJRK142 PCB JACK RADIAL AS DTQ-29U1SCV ZZ200 PTJAJAK142 PCB JACK AXIAL AS DTQ-29U1SCV 2TM14006LB TAPE MASKING 3M #232 6.0X2000M 2TM10006LB TAPE MASKING 3M #232-MAP-C 6.2X2000M A001...
  • Page 15 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 00001 1LA42072N- IC AUDIO AMP LA42072N 0000A 4857028200 HEAT SINK AL EX BK 0000B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN I701 1DA12001PQ IC MICOM FLASH TDA12001PQ I702 124LC16B1B IC MEMORY 24LC16B1B I801 PTB2SW4401...
  • Page 16 PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK Z801 DSVC471D14 VARISTOR SVC471D14A (BULK) ZZ200 PTMPJ0K142 PCB MAIN (RHU) AS DTQ-29U1SCV C404 CEXA2D229E C ELECTRO 200V RUL 2.2MF (10X16) TP C410 CMXB2G472J C MYLAR 400V EU 4700PF J (TP) C411 CEXF2E100V C ELECTRO...
  • Page 17 2W 3 OHM J SMALL R836 RS02Z109JS R M-OXIDE FILM 2W 1 OHM J SMALL ZZ200 PTMPJRK142 PCB MAIN RADIAL AS DTQ-29U1SCV C101 CCXF1H103Z C CERA 50V F 0.01MF Z (TAPPING) C102 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP...
  • Page 18 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C605 CMXM2A682J C MYLAR 100V 6800PF J (TP) C606 CMXM2A682J C MYLAR 100V 6800PF J (TP) C607 CMXM2A104J C MYLAR 100V 0.1MF J (TP) C608 CMXM2A104J C MYLAR 100V 0.1MF J (TP) C609 CMXM2A104J C MYLAR...
  • Page 19 SW TACT THVH472GCA SW705 5S50101090 SW TACT THVH472GCA SW706 5S50101090 SW TACT THVH472GCA ZZ200 PTMPJAK142 PCB MAIN AXIAL AS DTQ-29U1SCV 2TM14006LB TAPE MASKING 3M #232 6.0X2000M 2TM10006LB TAPE MASKING 3M #232-MAP-C 6.2X2000M A001 4859818691 PCB MAIN 330X246 D1B C107 CZSL1H470J...
  • Page 20 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C205 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z C206 CCZB1H472K C CERA HIKB 50V 4700PF K AXIAL C612 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z C702 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z C703 CBZF1H104Z...
  • Page 21 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK DV02 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B DV03 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B DV05 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B DV06 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B L101 5CPZ470K04 COIL PEAKING 47UH 10.5MM K (LAL04TB) L103 5CPZ479K02 COIL PEAKING...
  • Page 22 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R307 RN-AZ2201F R METAL FILM 1/6 2.2K OHM F R308 RD-4Z514J- R CARBON FILM 1/4 510K OHM J R310 RD-AZ104J- R CARBON FILM 1/6 100K OHM J R311 RD-4Z563J- R CARBON FILM 1/4 56K OHM J R312 RN-AZ2201F...
  • Page 23 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R704 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING R705 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R707 RN-AZ5600F R METAL FILM 1/6 560 OHM F R708 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R709 RD-AZ823J-...
  • Page 24 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING 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 2193102005 SOLDER BAR SN:PB=63:37 S63S-1320 2291050616 FLUX SOLDER JS-64T3 -23-...
  • Page 25 YPW500-02 PA902 4850704S04 CONNECTOR YH025-04+YST025+ULW=400 SCT1 4859303530 SOCKET CRT PCS629-03C ZZ200 PTCPJ0K142 PCB CRT ODD SHAPE AS DTQ-29U1SCV C904 CEXF2E479V C ELECTRO 250V RSS 4.7MF (10X16)TP C905 CEXF2E479V C ELECTRO 250V RSS 4.7MF (10X16)TP C926 CBXB3D102K C CERA SEMI 2KV BL(N) 1000PF K (T)

  • Page 26: Different Parts List

    DIFFERENT PARTS LIST **This BOM is based on DTQ-29U1SC, it is different parts list in comparison with DTQ-29U5SC. PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK RS821 CS803 CS804 R840 RC-2Z565J- R CARBON COMP 1/2 5.6M OHM J C825 CH1BFE222M C CERA AC U/C/V AC400V 2200PF C806 CEYD2G331D...

  • Page 27: Schematic Diagram

    -26-...
  • Page 28 -27-...

  • Page 29: Explode View

    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 -28-...
  • Page 30 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 -29-...

  • Page 31: Printed Circuit Board

    -30-...
  • Page 32 -31-...
  • Page 33 -32-...

  • Page 34: Ic Description

    IC DESCRIPTION Appendix 1. Pin Congiguration HERCULES FULL-STEREO (SSDIP90) (standard version) HERCULES FULL-STEREO (SSDIP90) (face down version) -33-...

  • Page 35: Pin Description

    IC DESCRIPTION Appendix 2. Pin 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...
  • Page 36 Appendix 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 37 IC DESCRIPTION Appendix 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...
  • Page 38 IC DESCRIPTION Appendix 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 39 IC DESCRIPTION Appendix 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 40 IC DESCRIPTION Appendix 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 41: 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 -40-...
  • Page 42 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 -41-...

  • Page 43: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Appendix 1. NO POWER -42-...

  • Page 44: 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 45: 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 46: Ch Don't Stop

    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 47: 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 48: 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 -47-...
  • Page 49 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : Apr. 2005...

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