Daewoo DTQ-29U1SC Service Manual
  1. Manuals
  2. Brands
  3. Daewoo Manuals
  4. TV
  5. DTQ-29U1SC
  6. Service manual
Daewoo DTQ-29U1SC Service Manual

Daewoo DTQ-29U1SC Service Manual

Chassis: cn-794n
Hide thumbs Also See for DTQ-29U1SC:
Table of Contents

Advertisement

Quick Links

See also: Instruction Manual

Service Manual

COLOR TELEVISION
CHASSIS : CN-794N
Model : DTQ-29U1SC
DTQ-29U5SC
DTQ-29U1SC
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)
http : //svc.dwe.co.kr
S/M No : TCN794NEF0
DTQ-29U1SC
Apr. 2003

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DTQ-29U1SC and is the answer not in the manual?

Questions and answers

Related Manuals for Daewoo DTQ-29U1SC

Summary of Contents for Daewoo DTQ-29U1SC

  • Page 1: Service Manual

    S/M No : TCN794NEF0 Service Manual COLOR TELEVISION CHASSIS : CN-794N Model : DTQ-29U1SC DTQ-29U5SC DTQ-29U1SC DTQ-29U1SC 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)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY PRECAUTIONS SPECIFICATIONS CIRCUIT BLOCK DIAGRAM ALIGNMENT INSTRUCTIONS YOUR REMOTE CONTROL SERVICE MODE ADJUSTMENT ASSEMBLY ADJUSTMENT SCHEMATIC DIAGRAM ELECTRICAL PARTS LIST DIFFERENT PARTS LIST 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-29U1/U5SC Item CHASSIS CN-794N TV Standard NTSC-M Power Input AC 120v, 60Hz Power Consumption 120W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69 CATV VHF(L) : 5A, A,B,A-5-A-1 CH2-CH6 VHF(H) : C-W+11...

  • Page 7: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM...

  • Page 8: Alignment Instructions

    ALIGNMENT INSTRUCTION Your Remote Control(R-43A07) 1. POWER use this button to turn your TV on or off. 2. MUTE Use to turn the TV's sound on and off. MUTE POWE R Use these buttons to change your TV's volume, to activate selections in the menu system.

  • 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. •...

  • Page 10: Alignment Instruction

    ALIGNMENT INSTRUCTION Table-B MODE ADJUSTMENT DATA REMARKS RANGE Screen Adjustment SOUND CONTROL FM/AM PRE 0~127 SCART PRE 0~127 MONI VOL 0~127 QUASI CHECK YES/NO NO SD NO POWER YES/NO V-SIZE 0~510 V-POSI 1104 1168 240~1712 H-PHASE 0~255 H-SIZE 1156 1060 4~4092 V-LIN 0~511...

  • 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 3-3. Vertical Size Adjustment • Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows. 4) WHITE BALANCE ADJUSTMENT(S8) • Receive a good local channel. • Enter the service mode and select service adjustment S8. •...
  • Page 13 ALIGNMENT INSTRUCTION • Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. • Press the DISPLAY button to memorize the data. CONTRAST • Fixed value = 8 TINT • Fixed value = 170 COLOR • Fixed value = 0 6) FACTORY OUTGOING MODE (S12 : FACT) •...

  • Page 14: Schematic Diagram

    SCHEMATIC DIAGRAM -13-...
  • Page 15 : 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-29U1SC PARTS CODE PARTS NAME...
  • Page 16 RC636 RD-AZ473J- R CARBON FILM 1/6 47K OHM J RCS33 RD-AZ473J- R CARBON FILM 1/6 47K OHM J ZZ290 PTMPMSK016 PCB MAIN MANUAL AS DTQ-29U1SC 2193102005 SOLDER BAR SN:PB=63:47 S63S-1320 2291050616 FLUX SOLDER JS-64T3 2291050301 FLUX SOLVENT IM-1000 C331 CEYD1H689W C ELECTRO 50V RHD 6.8MF (16X35.5)
  • Page 17 TUNER VARACTOR 115-V-F025AR X501 5XE20R250E CRYSTAL QUARTZ HC-49/U 20.2500MHZ 30PPM X601 5XE18R432E CRYSTAL QUARTZ HC-49/U 18.43200MHZ 30PPM X701 5XYR03276C CRYSTAL QUARTZ C-001R 32.768000KHZ 20PPM ZZ200 PTMPJ2K016 PCB CHIP MOUNT B AS DTQ-29U1SC JC002 HRFT000-BA R CHIP 1/10 0 OHM 1608 -16-...

  • Page 18: Electrical Parts List

    ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK JC003 HRFT000-BA R CHIP 1/10 0 OHM 1608 JC004 HRFT000-BA R CHIP 1/10 0 OHM 1608 JC005 HRFT000-BA R CHIP 1/10 0 OHM 1608 JC006 HRFT000-BA R CHIP 1/10 0 OHM 1608 JC007 HRFT000-BA R CHIP...
  • Page 19 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK RC527 HRFT122JBA R CHIP 1/10 1.2K OHM J 1608 RC532 HRFT101JBA R CHIP 1/10 100 OHM J 1608 RC534 HRFT103JBA R CHIP 1/10 10K OHM J 1608 RC541 HRFT101JBA R CHIP 1/10 100 OHM J 1608 RC542 HRFT101JBA...
  • Page 20 1/10 2K OHM J 1608 RC875 HRFT752JBA R CHIP 1/10 7.5K OHM J 1608 RC876 HRFT472JBA R CHIP 1/10 4.7K OHM J 1608 RC877 HRFT103JBA R CHIP 1/10 10K OHM J 1608 ZZ200 PTMPJ0K016 PCB MAIN (RHU) AS DTQ-29U1SC -19-...
  • Page 21 C880 CH1BEE472M C CERA AC U/C/V 2.5KV 4700PF TP C881 CH1BEE472M C CERA AC U/C/V 2.5KV 4700PF TP ZZ200 PTMPJBK016 PCB MAIN M-10 AS DTQ-29U1SC 2TM18006BE TAPE MASKING 6.2X500 E001 4856310300 EYE LET BSR T0.2 (R1.6) E002 4856310300 EYE LET BSR T0.2 (R1.6)
  • Page 22 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK E023 4856310300 EYE LET BSR T0.2 (R1.6) E024 4856310300 EYE LET BSR T0.2 (R1.6) E025 4856310300 EYE LET BSR T0.2 (R1.6) E026 4856310300 EYE LET BSR T0.2 (R1.6) E027 4856310300 EYE LET BSR T0.2 (R1.6) E028...
  • Page 23 R FUSIBLE 2W 0.12 OHM J (TAPPING) R814 RF01Z338K- R FUSIBLE 1W 0.33 OHM K (TAPPING) ZZ200 PTMPJRK016 PCB MAIN RADIAL AS DTQ-29U1SC C101 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C102 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP...
  • Page 24 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C519 CEXF1H228V C ELECTRO 50V RSS 0.22MF (5X11) TP C521 CEXF1H228V C ELECTRO 50V RSS 0.22MF (5X11) TP C523 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C525 CEXF1C470V C ELECTRO 16V RSS 47MF (5X11) TP C528 CEXF1H109V...
  • Page 25 SW703 5S50101090 SW TACT THVH472GCA SW704 5S50101090 SW TACT THVH472GCA SW705 5S50101090 SW TACT THVH472GCA SW706 5S50101090 SW TACT THVH472GCA ZZ200 PTMPJAK016 PCB MAIN AXIAL AS DTQ-29U1SC 2TM14006LB TAPE MASKING 3M #232 6.0X2000M 2TM10006LB TAPE MASKING 3M #232-MAP-C 6.2X2000M -24-...
  • Page 26 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK A001 4859816791 PCB MAIN 330X246 C103 CCZF1H103Z C CERA 50V F 0.01MF Z C107 CCZF1H103Z C CERA 50V F 0.01MF Z C211 CCZF1H103Z C CERA 50V F 0.01MF Z C212 CCZB1H391K C CERA 50V B 390PF K (AXIAL)
  • Page 27 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C755 CCZF1H103Z C CERA 50V F 0.01MF Z C757 CCZB1H333K C CERA 50V B 0.033MF K AXL C780 CCZF1H103Z C CERA 50V F 0.01MF Z C891 CCZB1H820K C CERA 50V B 82PF K (AXIAL) D101 DUZ33B——...
  • Page 28 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J009 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J010 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J011 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J012 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J013 85801065GY WIRE COPPER...
  • Page 29 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J054 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J055 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J056 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J057 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J058 85801065GY WIRE COPPER...
  • Page 30 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J099 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J100 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J101 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J102 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J103 85801065GY WIRE COPPER...
  • Page 31 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J144 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J145 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J146 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J147 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J148 85801065GY WIRE COPPER...
  • Page 32 RD-AZ203J- R CARBON FILM 1/6 20K OHM J R893 RN-AZ2002F R METAL FILM 1/6 20.0K OHM F ZZ300 PTCPMSK016 PCB CRT MANUAL AS DTQ-29U1SC I901 PTB2SW5403 HEAT SINK ASS`Y 1TEA5101B- + 7174300811 I901 1TEA5101B- IC VIDEO AMP TEA5101B I901A 4857025403...
  • Page 33 TT2 RND 3X8 MFZN 00001 TKTC4370AY KTC4370AY SCT1 4859302830 SOCKET CRT ISH-02S ZZ200 PTCPJ0K016 PCB CRT ODD SHAPE AS DTQ-29U1SC C907 CEXF2E100V C ELECTRO 250V RSS 10MF (10X20) TP C908 CEXF2E100V C ELECTRO 250V RSS 10MF (10X20) TP C909 CH1BEE472M C CERA AC U/C/V 2.5KV 4700PF TP...
  • Page 34 R METAL FILM 2W 24 OHM J SMALL R953 RN02B221JS R METAL FILM 2W 220 OHM J SMALL ZZ200 PTCPJAK016 PCB CRT AXIAL AS DTQ-29U1SC A001 4859828413 PCB CRT 165X113(330X246/2X2) C1B C917 CCZB1H561K C CERA 50V B 560PF K C918...
  • Page 35 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J908 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J910 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J913 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J914 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J915 85801065GY WIRE COPPER...
  • Page 36 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R943 RD-AZ683J- R CARBON FILM 1/6 68K OHM J R944 RD-AZ123J- R CARBON FILM 1/6 12K OHM J R945 RD-AZ122J- R CARBON FILM 1/6 1.2K OHM J R946 RD-AZ152J- R CARBON FILM 1/6 1.5K OHM J R947 RD-4Z620J-...

  • Page 37: 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 M191 4851948400 BUTTON CTRL 4955100+5549200 29U1 29U1 4854955500 BUTTON CH FR ABS GY 29U5 29U5...

  • Page 38: Explode View

    MATERIAL REMARKS PART CODE PART NAME Q’ty Designed by Checked by Inspected by Approved by PART NAME UNITS DEVELOPMENT DWG SCALE 01.09.26 MODEL DTQ-29U1 DAEWOO Electronics Corp. 485009KR Mechani c al Desi g n Team, TV Research Center REFERENCE -37-...
  • Page 39 MATERIAL REMARKS PART CODE PART NAME 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 -38-...

  • Page 40: Printed Circuit Board

    PRINTED CIRCUIT BOARD (CN-794N/MAIN / Top) -39-...
  • Page 41 PRINTED CIRCUIT BOARD (CN-794N/MAIN / Silkscreen Bottom) -40-...
  • Page 42 PRINTED CIRCUIT BOARD (CN-794N/MAIN / Silkscreen Top) -41-...
  • Page 43 PRINTED CIRCUIT BOARD (CN-794N/MAIN / Drill Drawing) -42-...
  • Page 44 PRINTED CIRCUIT BOARD (CN-794N/MAIN / Solder Mask Top) -43-...
  • Page 45 PRINTED CIRCUIT BOARD (CN-794N/CRT / Top) -44-...
  • Page 46 PRINTED CIRCUIT BOARD (CN-794N/CRT / Silkscreen Bottom) -45-...
  • Page 47 PRINTED CIRCUIT BOARD (CN-794N/CRT / Silkscreen Top) -46-...
  • Page 48 PRINTED CIRCUIT BOARD (CN-794N/CRT / Drill Drawing) -47-...
  • Page 49 PRINTED CIRCUIT BOARD (CN-794N/CRT / Solder Mask Top) -48-...

  • Page 50: Ic Description

    IC DESCRIPTION Appendix 1. Pin Congiguration POWER D/G SW A mute V SW AV OP MSPRES INCH OP VDPRES Spare ST LED I701 RC IN DW8638TA1 I/P I/O S-VHS KEY IN SCL1 AFT IN SDA1 SCL2 SDA2 RESET OSD I FILTER OSDblk CVBS in...

  • Page 51: Pin Description

    IC DESCRIPTION Appendix 2. Pin Description PIN NAME DESCRIPTION AV(CVBS in) OPTION H : AV1~AV2, CVI ; L : AV1~AV3, CVI INCH OPTION NC(Spare) Crystal INPUT Crystal OUTPUT Supply Voltage(+5V) P84/AN4 Key INPUT P85/AN5 AFT Signal INPUT P86/AN6 P87/AN7 RES(inv) Reset FILT MCU PLL Filter...
  • Page 52 Appendix IC DESCRIPTION 3. Pin Congration TEST VIN4 RESQ VIN3 VIN2 VIN1 GNDD CIN1 VOUT VSUPAF SGND INTLC GNDAF VPROT CBIN SAFETU CIN2/CRIN HFLB XTAL2 GNDD XTAL1 I501 VSUPD HOUT GNDD CLK20 VSUPD FBLIN2 VDP3130Y BIN2 GIN2 RIN2 FBLIN GNDD RSW2 BOUT RSW1...
  • Page 53 IC DESCRIPTION Appendix 4. Pin Description Pin No. Pin Name Type Short Description TEST Test Input RESQ Reset Input IN/OUT I2C Bus Clock IN/OUT I2C Bus Data GNDD SUPPLY Digital Ground Half Contrast Switch Input Front Sync Out Composite Sync Output Vertical Sync Output INTLC Interlace Control Output...
  • Page 54 IC DESCRIPTION Appendix Pin No. Pin Name Type Short Description RIN2 Analog Red Input2 GIN2 Analog Green Input2 BIN2 Analog Blue Input2 FBLIN2 Fast Blank Input CLK20 20.25MHz System Clock Output HOUT Horizontal Drive Output XTAL1 Analog Crystal Input XTAL2 Analog Crystal Output CIN2/CRIN Analog chroma2/component CR Input...
  • Page 55 WAVEFORMS Appendix (1) I801 PIN7 POWER ON (1) I801 PIN7 STAND-BY (2) T801 PIN17 POWER ON (2) T801 PIN17 STAND-BY (3) I501 PIN50 HOUT (4)T402 PIN1 HOR.OUT -54-...

  • Page 56: Waveforms

    WAVEFORMS Appendix (6) T402 PIN9 HEATER LINE (5) T402 PIN3 200V LINE (8) T402 PIN6 27V LINE (7) T402 PIN4 12V LINE (10) I501 PIN32 E/W (9) I501 PIN31 VERTICAL RAMP -55-...
  • Page 57 WAVEFORMS Appendix (12) I501 PIN52 VDP X-TAL (11) CVBS (Composite Video) (14) SVM Q902 BASE (13) I501 PIN11 VSYNC (16) SVM Q907 BASE (15) SVM Q906 BASE -56-...
  • Page 58 WAVEFORMS Appendix (18) I901 PIN7 ROUT (17) SVM Q909 BASE -57-...

  • Page 59: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Appendix 1.NO POWER Check R801(10W,1) L801 C803 R801 D804 C802 R862 FB01 C818 R822 C819 D801 125V 5A Check F801(125V/5A) R813 R814 +133V L805 C820 T801 C814 TSM-5345B9 Check Voltage C813 +133V R807 Check D807 voltage L807 C804 +45V C817 +12V...

  • Page 60: No Picture

    TROUBLESHOOTING GUIDE Appendix 2.NO PICTURE NG : Go to the figure (c) check the waveform of I501 #61 OK : Go to the figure (d) Check the VOLTAGE U101 TUNER CVBS Composite Video T-DATA T-CLOCK Check clock/data signal I501 I701 VDP3130Y MICOM X701...

  • Page 61: No Sound

    TROUBLESHOOTING GUIDE Appendix 3. NO SOUND NG : Go to the figure (e) Check MSP output data signal of I601 #28, #29 OK : Go to the figure (f) U101 TUNER SIF OUT Check T- CLOCK T-DATA X601 the crystal 18.432MHz I601 I701...

  • Page 62: Ch Don't Stop

    TROUBLESHOOTING GUIDE Appendix 4. CH DON’T MEMORY or SKIP NG : Loss of signal or weak signal Check the input signal conditions OK : Go to the figure (g) Check 5V/33V LINE Check Composite Video Signal U101 TUNER CVBS T-DATA T-CLOCK Check T-SDA/SCL I701...

  • Page 63: No Color

    TROUBLESHOOTING GUIDE Appendix 5. NO COLOR Check the crystal Check CVBS Waveform X501 Vsup 5V I501 VDP3130Y Vsup 5V R OUT G OUT Vsup 3.3V B OUT Check the Voltage Check R/G/B signal 6. NO VERTICAL DEFLECTION X501 Check the Voltage(27V) I501 I301 Vcc 27V VDP3130Y...

  • Page 64: No On-Screen Display

    TROUBLESHOOTING GUIDE Appendix 7. NO ON-SCREEN DISPLAY Check the signal(60Hz) Check data/clock signal V. SYNC H. SYNC Check I701 I501 the signal(15.73Hz) MICOM VDP3130Y OSD R OSD G OSD B BLANK Check OSD R/G/B/BLANK signal X701 ST-BY 5V Check If OSD doesn’t operate, the crystal I701 replace new product 8.
  • Page 65 PRINTED DATE : Apr. 2003...

This manual is also suitable for:

Dtq-29u5scDtq-29u1ssDtq-29u5ss

Table of Contents