Daewoo DVQ-13H1FCN Service Manual
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Daewoo DVQ-13H1FCN Service Manual

Daewoo DVQ-13H1FCN Service Manual

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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)

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Summary of Contents for Daewoo DVQ-13H1FCN

  • Page 1 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)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY INSTRUCTION ....................2 SPECIFICATION ......................5 CIRCUIT BLOCK DIAGRAM .................... 6 ALIGNMENT INSTRUCTIONS.................... 8 SERVICE MODE ADJUSTMENTS........................8 ASSEMBLY ADJUSTMENTS ..........................10 VCR DECK ADJUSTMENTS..........................12 SCHEMATIC DIAGRAM ....................13 EXPLODED VIEW ......................14 PRINTED CIRCUIT BOARD....................18 SERVICE PARTS LIST .......................

  • Page 3: Safety Instruction

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

  • Page 6: Specification

    SPECIFICATION ITEMS MODEL DVQ-13/19H1FCN, DVQ-13/19H2FCN REMARK STANDARD NTSC-M SECTION TUNING SYSTEM Frequency Synthesizer(FS) Tuning System TUNING RANGE VHF : 2 - 13(12) UHF : 14 -69(56) CATV : 1-125(125) ANTENNA INPUT IMPEDENCE 75 ohm Unbalanced AUXILIARY INPUT TERMINAL Front : Video, Audio VIDEO FORMAT VHS NTSC Standard...

  • Page 7: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM...
  • Page 8 CIRCUIT BLOCK DIAGRAM...

  • Page 9: Alignment Instructions

    ALIGNMENT INSTRUCTIONS 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. w Turn the set on. w Direct the remote control to the reception window of your TV/VCR w Push buttons of remote control in sequence as follows.
  • Page 10 ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARK INITIAL RANGE Screen Adjustment AGC Auto Automatical adjustment AGC Vol 3.75V Select AGC reference voltage (3.75V) CONTROL 0-63 Align RF AGC threshold VIDEO LEV Must be set to 7 FM LEV 0-31 Must be set to 5 HFREQ 0-63...

  • Page 11: Assembly Adjustments

    ALIGNMENT INSTRUCTIONS 2. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT(S2) w Enter the service mode and select service adjustment S2 w You can see the horizontal straight line on the screen w Adjust the Screen Control volume(located on FBT) so that the horizontal straight line on screen may be disappear. w Press the MENU button to exit the screen adjustment mode.
  • Page 12 ALIGNMENT INSTRUCTIONS 4-1.HORIZONTAL CENTER Adjustment w 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 CENTER Adjustment w Select V CENTER item, adjust V CENTER data value to center the raster properly on the screen. 4-3.VERTICAL SIZE Adjustment w Select V SIZE item, adjust V SIZE data value to proper vertical size as figure 1.

  • Page 13: Vcr Deck Adjustments

    ALIGNMENT INSTRUCTIONS 3. VCR DECK ADJUSTMENTS 1) X-DISTANCE & P2,P3 ADJUSTMENT(S10) w Connect Path JIG to connector PS04, Playback the test tape (DN-2,7KHz) w Connect oscilloscope CH1 to V.SW(PS04 #2),CH2 to PB RF(PS04 #1) and trigger on CH1. w Enter the service mode and select service adjustment S10 w Use the VOL up( U ) button to set ATK Off CEN.

  • Page 14: Schematic Diagram

    SCHEMATIC DIAGRAM VIDEO AUDIO VERTICAL HORIZONTAL...

  • Page 15: Exploded View

    EXPLODED VIEW 1. DVQ-19H2FCN...
  • Page 16 EXPLODED VIEW 2. DVQ-19H1FC...
  • Page 17 EXPLODED VIEW 3. DVQ-13H2FC...
  • Page 18 EXPLODED VIEW 4. DVQ-13H1FC...

  • Page 19: Printed Circuit Board

    PRINTED CIRCUIT BOARD...

  • Page 20: Service Parts List

    SERVICE PARTS LIST CAUTION “ I“ is safety component, so it must be used the same component. " " is recomendable part for stock. 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) r DVQ-13H2FCN PART CODE...
  • Page 21 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK C412 CCYB2H103K C CERA 500V B 0.01MF K C836 CEXF1H479A C ELECTRO 50V RSM 4.7MF 4X7 C413 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C888 CH1BFE472M C CERA AC...
  • Page 22 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK CCS50 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CS33 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z CCS53 HCQK391JCA C CHIP CERA 50V CH 390PF J 2012 CS39 CEXF1C470A C ELECTRO...
  • Page 23 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK CY32 CEXF1C100A C ELECTRO 16V RSM 10MF 5X7 I301A 4857027100 HEAT SINK SPCC T1.0+SN CY37 CEXF1H109A C ELECTRO 50V RSM 1MF (4X7) TP I301B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN CY39...
  • Page 24 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK LS02 5CPZ560K02 COIL PEAKING 56UH K (AXIAL 3.5MM) Q823 TKSA1013Y- KSA1013Y (TP) LS03 5CPZ560K02 COIL PEAKING 56UH K (AXIAL 3.5MM) Q826 TKTC3198Y- KTC3198Y LU01 5CPZ560K02 COIL PEAKING 56UH K (AXIAL 3.5MM) QC824...
  • Page 25 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK R506 RD-AZ201J- R CARBON FILM 1/6 200 OHM J R907 RN01B124JS R METAL FILM 1W 120K OHM J SMALL R507 RD-AZ201J- R CARBON FILM 1/6 200 OHM J RA01 RD-AZ104J- R CARBON FILM...
  • Page 26 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK RCS09 HRFT393JCA R CHIP 1/10 39K OHM J 2012 RCU03 HRFT512JCA R CHIP 1/10 5.1K OHM J 2012 RCS10 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCU05 HRFT512JCA R CHIP...
  • Page 27 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK RS02 RD-AZ103J- R CARBON FILM 1/6 10K OHM J RT04 RD-AZ331J- R CARBON FILM 1/6 330 OHM J RS13 RD-4Z121J- R CARBON FILM 1/4 120 OHM J RT05 RD-AZ472J- R CARBON FILM...
  • Page 28 SERVICE PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK TU01 5800000032 COIL OSC DE0-006 XS02 5XJ16R000E CRYSTAL QUARTZ HC-49S 16.000000MHZ 30PPM U102 4859719130 TUNER VARACTOR DT5-NF20F XY01 5XEX3R579B CRYSTAL QUARTZ HC-49U 3.57954M 15PPM TP X501 5XE3R5795C CRYSTAL QUARTZ...

  • Page 29: Ic Description

    IC DESCRIPTION Appendix ICS01 DW37760MOH-BA1(M37760) : IC TIMER / SYSCON / CTL PROCESSOR 98 97 96 93 92 91 88 87 86 83 82 81 KEY1 P11 (0)/AN8 P9(0)/RLT AGC IN P7(7)/AN7 P9(1)/RLS OPTION P7(6)/AN6 P9(2)/INT0 P/W FAIL DRUM SELECT P7(5)/AN5 P9(3)/PWM0 DRUM PWM...
  • Page 30 IC DESCRIPTION Appendix 1. SYSTEM FEATURE 1) The system for TV/VCR tuning is Frequency Synthesis type. 2) VCR SERVO Controller is interior designed. 3) Closed Caption function is interior designed. 4) Parental Control function is interior designed. 5) On Screen Display function is interior designed. 6) Package : 100PIN QFP 7) Tuner (Pre-scaler)
  • Page 31 IC DESCRIPTION Appendix 2. PIN DESCRIPTION Terminal Name Explanation Remarks P11(0) KEY 1 IN Power, Ch up/down, Vol up/down P7(7) AGC IN Connect this port to AGC of Tuner. Default voltage :3.75V Variable voltage : 3.25V, 3.5V, 3.75V P7(6) OPTION H(5V) : Parental control M(2.5V) : Child lock L(0V) : None...
  • Page 32 IC DESCRIPTION Appendix Terminal Name Explanation Remarks P4(7) AUDIO MUTE H Connect this port to 95 pin of ICY01. When special play, set audio mute. P4(6) Not used P4(5) REC LED H Light up LED(RED) when recording P4(4) TIMER REC LED H Light up LED(GREEN) when ready to programming record.
  • Page 33 IC DESCRIPTION Appendix Terminal Name Explanation Remarks P0(4) OSD BLANK OUT Fast blanking control signal. Switch TV image signal and Caption/OSD image signal. P0(3) Not used P0(2) OSD B OUT Blue output terminal of OSD image. P0(1) OSD G OUT Green output terminal of OSD image.
  • Page 34 IC DESCRIPTION Appendix Terminal Name Explanation Remarks P8(1) DRUM FG IN Drum Frequency Generator signal input. Feed back Drum rotation speed. DRUM PG IN Drum Pulse Generator signal input. Feed back Drum rotation phase. AMP REF IN Control pulse AMP reference input terminal. AMP REF OUT Control pulse AMP reference output terminal.
  • Page 35 IC DESCRIPTION Appendix IC501 DCT814B(LA76814B) : IC VIDEO PROCESSOR...
  • Page 36 IC DESCRIPTION Appendix ICY01 LA71076M : IC VCR Y/C & AUDIO PROCESSOR...
  • Page 37 IC DESCRIPTION Appendix I801 POWER CONTROL MODULE DPM 001 TI PIN NO DESCRIPTION PIN NO DESCRIPTION GATE DRIVE1 +12V INPUT POWER CONTROL SOURCE +26 OUTPUT GND1 GND2 GATE +133V INPUT GATE DRIVE2...

  • Page 38: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Appendix 1. NO POWER Check Check Check R802(7W 2.2) F801(125V 4A) D801~D804(LT2A05G) D801 F801 R802 C804 TO I501 #34 PWC01 L801 Q821 C826 T801 D820 L824 Check 133V Voltage R820 133V C821 D821 Check R110 TUNER 33V Waveform Check Voltage H/D TRANS...
  • Page 39 TROUBLESHOOTING GUIDE Appendix 2. TV PART 2-1) NO PICTURE NG : GO to the figure Check the waveform of I501 #46 OK : GO to the figure Check Voltage Check IF Vcc(5V) U102 Z101 IF OUT TUNER SAW FILT Check Check Signal Reset...
  • Page 40 TROUBLESHOOTING GUIDE Appendix 2-2) NO SOUND NG : GO to the figure Check the waveform of I501 #1 OK : GO to the figure Check Voltage Check IF Vcc(5V) U102 Z101 IF OUT TUNER SAW FILT Check Check Check Signal Reset AGC Voltage SDATA...
  • Page 41 TROUBLESHOOTING GUIDE Appendix 2-3) CHANNEL DON’ T STOP NG : Loss of signal or weak signal Check the input signal conditions. OK : GO to the figure Check Voltage U102 IF OUT TUNER Check AGC IN IF Vcc(5V) Check SDA/SCL C116 Z101 SAW FILT...
  • Page 42 TROUBLESHOOTING GUIDE Appendix 2-4) NO COLOR Check CVS waveform Check the voltage C527 Chroma/DEF Vcc Check L502 the voltage X501 RGB Vcc(9V) 3.58MHz R504 I501 Check DCT814B Check R/G/B signal the crystal R OUT R505 G OUT R506 B OUT R507...
  • Page 43 TROUBLESHOOTING GUIDE Appendix 2-5) NO VERTICAL DEFLECTION Check the voltage L502 Chroma/DEF Vcc Check the crystal C508 I501 DCT814B X501 3.58MHz V RAMP C507 ALC filter Check From the voltage D404 (2.5V) Vertical IC Vcc(26V) Check R301 vertical output Invert RAMP signal I301 LA7841...
  • Page 44 TROUBLESHOOTING GUIDE Appendix 2-6) NO ON-SCREEN DISPLAY Check Check Check the signal the signal data/clock signal (15,734Hz) (60Hz) H.SYNC V.SYNC MDATA MCLK I501 DCT814B RESET ICS01 OSD R TIMER/SYSCON OSD G Vcc(5V) OSD B BLANK #36 #38 #39 #44 Check OSD R/G/B/BLK XS02 LS01...
  • Page 45 TROUBLESHOOTING GUIDE Appendix 2-7) REMOTE CONTROL DOES NOT OPERATE Check the voltage KEY 1 #100 KEY 0 RT01 RESET ICS01 TIMER/SYSCON Vcc(5V) Vcc(5V) IT01 REMOCON #36 #38 PREAMP Check the waveform XS02 32KHz 16MHz Check the crystal...

  • Page 46: Vcr Part

    TROUBLESHOOTING GUIDE Appendix 3. VCR PART 3-1) NO LOADING EJECT : GO to the figure Check the loading conditions (VHS TAPE) UNLOADING : GO to the figure Check waveform TAKE UP SENSOR SS03 RESET ICS01 SUPPLY TIMER/SYSCON SENSOR SS04 Vcc(5V) #36 #38 Check the voltage...
  • Page 47 TROUBLESHOOTING GUIDE Appendix 3-2) NO ROTATING DRUM : GO to the figure Check the Rotating CAPSTAN : GO to the figure Check the voltage Vcc(12V) PS01 D-PWM RESET DRUM CONNECTOR D-PG Pulse Vcc(5V) #3 & #4 ICS01 TIMER/SYSCON Vcc(5V) D-FG Pulse Vcc(5V) #36 #38 Check...
  • Page 48 TROUBLESHOOTING GUIDE Appendix 3-3) NO PICTURE PLAYBACK NG : GO to the figure Check the waveform of ICY01 #27 OK : GO to the figure k Check CTL(-) CTL(+) Control pulse Check the crystal #9 7 XS02 Check RESET #3 4 the voltage 16MHz ICS01...
  • Page 49 TROUBLESHOOTING GUIDE Appendix Check the crystal XS02 Check #3 4 RESET the voltage 16MHz Check #3 7 ICS01 Vcc(5V) the crystal TIMER/ Vcc(5V) SYSCON XS01 Vcc(5V) 32KHz #20 #1 8 #15 #16 #70 #5 6 Check CTL signal Check MCL/MDA signal REC H MDATA VH SW Pulse...
  • Page 50 TROUBLESHOOTING GUIDE Appendix 3-4) NO COLOR PLAYBACK Check the voltage Check the crystal #3 9 XS02 #3 4 RESET 16MHz Check ICS01 Vcc(5V) the crystal TIMER/ Vcc(5V) SYSCON XS01 Vcc(5V) #9 9 32KHz #2 0 #18 #5 6 Check MCL/MDA signal REC H MDATA VH SW Pulse...
  • Page 51 TROUBLESHOOTING GUIDE Appendix 3-5) NO SOUND PLAYBACK Check CTL(+) the waveform HEAD (30Hz) CTL(-) Check the crystal XS02 Check RESET #3 4 the voltage 16MHz ICS01 Vcc(5V) TIMER/ #3 5 Vcc(5V) SYSCON XS01 Vcc(5V) 32KHz Check #65 #67 the crystal Check SCL/SDA signal REC H...
  • Page 52 TROUBLESHOOTING GUIDE Appendix 3-6) NO RECORD PICTURE NG : GO to the figure 2-1 (TV PART) Check the waveform of ICY01 #40 OK : GO to the figure m Check CTL(+) the waveform HEAD (30Hz) CTL(-) Check the crystal #9 4 XS02 Check RESET...
  • Page 53 TROUBLESHOOTING GUIDE Appendix 3-7) NO RECORD SOUND 2-2 (TV PART) NG : GO to the figure Check the waveform of ICY01 #74 OK : GO to the figure n Check the crystal XS02 Check RESET the voltage 16MHz Check ICS01 #3 7 Vcc(5V) the crystal...
  • Page 54 TROUBLESHOOTING GUIDE Appendix 3-8) NO EXTERNAL VIDEO / AUDIO Check the crystal XS02 Check the voltage RESET 16MHz Check ICS01 Vcc(5V) the crystal TIMER/ Vcc(5V) SYSCON XS01 Vcc(5V) 32KHz #3 6 #7 1 Check MCL/MDA signal INPUT SELCT MDATA Check MCLK TV:H, EXT:L CTL signal...
  • Page 55 DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “ DAEWOOELEC” E-mail : leesk@web.dwe.co.kr TEL : 82-2-360-7802 FAX : 82-2-360-7877...

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