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Daewoo DVQ-13H1FC Service Manual

Daewoo electronics tv / vcr combination service manual.

 
Service Manual
TV / VCR Combination
CHASSIS : CN-071
MODEL :
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
S/M No:CN071N-010
DVQ-13H1FC
DVQ-19H1FC
DVQ-13H2FC
DVQ-19H2FC
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Summary of Contents

  • Page 1

    S/M No:CN071N-010 Service Manual TV / VCR Combination CHASSIS : CN-071 MODEL : DVQ-13H1FC DVQ-19H1FC DVQ-13H2FC DVQ-19H2FC DAEWOO ELECTRONICS CO., LTD http : //svc.dwe.co.kr...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY PRECAUTIONS ... 2 SPECIFICATION ... 5 BLOCK DIAGRAM ... 6 IC DESCRIPTION ... 8 SYSTEM FEATURE ... 9 PIN DESCRIPTION ... 10 TROUBLESHOOTING GUIDE ... 17 NO POWER ... 17 TV PART ... 18 VCR PART ... 25 ELECTRICAL PARTS LIST ...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER°ØS APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULTING PROPERTY DAMAGE OR USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOR- OUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES.

  • Page 4

    CAUTION : Do not attempt to modify this product in any way. Unau- thorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. Service work should be performed only after you are thoroughly familiar with all of the following safety checks and servicing guide- lines.

  • Page 5

    SAFETY PRECAUTIONS SUBJECT : IMPLOSION 1. All direct viewed picture tubes are equipped with an integral implo- sion protection system, but care should be taken to avoid damage during installation. Avoid scratching the tube. If scratched, replace 2. Use only recommended factory replacement tubes. SUBJECT : TIPS ON PROPER INSTALLATION 1.

  • Page 6: Specification

    SPECIFICATION ITEMS STANDARD SECTION TUNING SYSTEM TUNING RANGE ANTENNA INPUT IMPEDENCE AUXILIARY INPUT TERMINAL VIDEO FORMAT SECTION VCR SYSTEM AUDIO RECORDING SYSTEM TAPE SPEED INPUT TIMER PROGRAMING GENERAL POWER INPUT POWER CONSUMPTION SOUND OUTPUT SPEAKER OPRATING TEMPERATRE REMOTE CONTROL SPECIAL FUNTION MODEL DVQ-13/19H1FC, DVQ-13/19H2FC NTSC-M...

  • Page 7: Block Diagram

    BLOCK DIAGRAM...

  • Page 8

    BLOCK DIAGRAM...

  • Page 9: Ic Description

    IC DESCRIPTION ICS01 DW37760MCA-AA1(M37760) : IC TIMER / SYSCON / CTL PROCESSOR KEY1 P11 (0)/AN8 AGC IN P7(7)/AN7 OPTION P7(6)/AN6 DRUM SELECT P7(5)/AN5 PATH ADJUST P7(4)/AN4 VIDEO ENV P7(3)/AN3 END SENSOR P7(2)/AN2 START SENSOR P7(1)/AN1 POWER SAFETY P7(0)/AN0 P6(7)/AN10/AD CAPSTAN I LIMIT P6(6)/RTP1 P6(5)/RTP1 QV SYNC...

  • Page 10: System Feature

    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 11: Pin Description

    IC DESCRIPTION 2. PIN DESCRIPTION Terminal Name P11(0) KEY 1 IN P7(7) AGC IN P7(6) OPTION P7(5) DRUM SELECT P7(4) PATH ADJUST P7(3) VIDEO ENVELOPE IN P7(2) END SENSOR IN P7(1) START SENSOR IN P7(0) POWER SAFETY IN P6(7) AFT IN P6(6) CAPSTAN I LIMIT OUT P6(5)

  • Page 12

    Terminal Name P4(7) AUDIO MUTE H P4(6) P4(5) REC LED H P4(4) TIMER REC LED H P4(3) MONITOR ON H P4(2) VCR ON H P4(1) RELAY ON H P4(0) RESET RESET(L) P3(1) Xcin P3(0) Xcout Xout Xout P2(2) OSCin3 P2(1) OSCout3 CLK SELECT P2(0)

  • Page 13

    IC DESCRIPTION Terminal Name P0(4) OSD BLANK OUT P0(3) P0(2) OSD B OUT P0(1) OSD G OUT P0(0) OSD R OUT P10(7) S DATA P10(6) P10(5) S CLOCK P10(4) CAP PG mon P10(3) DRUM PG mon P10(2) DRUM FG mon P10(1) M CLOCK P10(0)

  • Page 14

    Terminal Name P8(1) DRUM FG IN DRUM PG IN AMP REF IN AMP REF OUT P8(0) CTL- CTL+ AMP C CTL AMP OUT AMP Vcc ANALOG Vcc P11(1) KEY 0 IN Explanation Drum Frequency Generator signal input. Feed back Drum rotation speed. Drum Pulse Generator signal input.

  • Page 15

    IC DESCRIPTION IC501 DCT814B(LA76814B) : IC VIDEO PROCESSOR...

  • Page 16

    IC DESCRIPTION ICY01 LA71550M : IC VCR Y/C & AUDIO PROCESSOR...

  • Page 17

    IC DESCRIPTION I801 POWER CONTROL MODULE PIN NO DESCRIPTION GATE DRIVE1 SOURCE GND1 GATE GATE DRIVE2 DPM 001 TI PIN NO DESCRIPTION +12V INPUT POWER CONTROL +26 OUTPUT GND2 +133V INPUT...

  • Page 18: Troubleshooting Guide, No Power

    TROUBLESHOOTING GUIDE 1. NO POWER Check Check R802(10W 2.2) F801(125V 4A) F801 PWC01 L801 T801 Check Waveform Q801 R805 R807 I801 Q801 DRAIN ST- BY VCR ON Check D801(PBS208GU) D801 R802 C804 Q821 D820 133V R820 C821 D821 R110 C822 D822 L823 C823...

  • Page 19: Tv Part

    TROUBLESHOOTING GUIDE 2. TV PART 2-1) NO PICTURE Check the waveform of I501 #46 U102 TUNER Check Reset SDATA ICS01 TIMER/SYSCON XCS01 Check the X-TAL Z502 CC527 Check Vcc(9V) Check RGB Signal Check Voltage IF OUT Check Signal SCLK MCLK MDATA Check Signal...

  • Page 20

    2-2) NO SOUND Check the waveform of I501 #1 U102 TUNER Check Reset SDATA SCLK ICS01 TIMER/SYSCON XCS01 Check the X-TAL Check Voltage R604 SOUND C605 CC602 Check AUDIO Signal Check Voltage IF OUT Check Signal MCLK MDATA Check Signal XS02 I601 TDA7267A...

  • Page 21

    TROUBLESHOOTING GUIDE 2-3) CHANNEL DON’ T STOP Check the input signal conditions. U102 TUNER Check SDA/SCL IS02 EEPROM SDATA SCLK Reset ICS01 TIMER/SYSCON XCS01 Check the X-TAL Check Voltage IF OUT AGC IN CC116 Check AGC Voltage Check Signal MCLK MDATA Caption CVS Check Waveform...

  • Page 22

    2-4) NO COLOR Check CVS waveform CC527 Check the voltage RGB Vcc(9V) R504 Check R/G/B signal R OUT R505 G OUT R506 B OUT R507 I501 DCT814B TROUBLESHOOTING GUIDE Check the voltage Chroma/DEF Vcc L502 X501 3.58MHz Check the crystal...

  • Page 23

    TROUBLESHOOTING GUIDE 2-5) NO VERTICAL DEFLECTION CC508 V RAMP CC507 ALC filter Check the voltage (2.5V) Check vertical output signal Check the voltage L502 Chroma/DEF Vcc Check the crystal I501 DCT814B X501 3.58MHz D404 Vertical IC Vcc(26V) RC301 Invert RAMP OUTPUT Check VERTICAL...

  • Page 24

    2-6) NO ON-SCREEN DISPLAY Check the signal (15,734Hz) H.SYNC V.SYNC RESET ICS01 TIMER/SYSCON Vcc(5V) #36 #38 XCS01 XS02 32KHz 16MHz Check the crystal Check Check the signal data/clock signal (60Hz) MDATA MCLK OSD R OSD G OSD B BLANK #39 #44 LS01 Check the waveform...

  • Page 25

    TROUBLESHOOTING GUIDE 2-7) REMOTE CONTROL DOES NOT OPERATE RESET TIMER/SYSCON Vcc(5V) #36 #38 XCS01 32KHz Check the crystal #100 ICS01 Check the waveform XS02 16MHz Check the voltage KEY 1 KEY 0 RT01 Vcc(5V) IT01 REMOCON PREAMP...

  • Page 26: Vcr Part

    3. VCR PART 3-1) NO LOADING Check the loading conditions (VHS TAPE) RESET Vcc(5V) #36 #38 XCS01 32KHz Check the crystal RESET Vcc(5V) #36 #38 XCS01 32KHz Check the crystal UNLOADING : GO to the figure waveform ICS01 TIMER/SYSCON RS90 RS91 XS02 16MHz...

  • Page 27

    TROUBLESHOOTING GUIDE 3-2) NO ROTATING Check the Rotating RESET Vcc(5V) TIMER/SYSCON Vcc(5V) Vcc(5V) #36 #38 XCS01 32KHz Check the crystal RESET Vcc(5V) TIMER/SYSCON Vcc(5V) Vcc(5V) #36 #38 XCS01 32KHz Check the crystal Check the voltage D-PWM D-PG Pulse ICS01 D-FG Pulse XS02 16MHz Check...

  • Page 28

    3-3) NO PICTURE PLAYBACK Check the waveform of ICY01 #27 Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 C Vcc CCD Vcc ICY01 VCR Y/C LA71550M SW Vcc Y Vcc Check the voltage (5V) Check waveform ICS01...

  • Page 29

    TROUBLESHOOTING GUIDE Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 C Vcc CCD Vcc ICY01 VCR Y/C LA71550M SW Vcc Y Vcc Check the voltage (5V) ICS01 TIMER/ SYSCON #65 #67 Check the waveform Caption Check the waveform...

  • Page 30

    3-4) NO COLOR PLAYBACK Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK the waveform #16 #17 C Vcc CCD Vcc ICY01 VCR Y/C LA71550M SW Vcc Y Vcc Check the voltage XY01 (5V) 3.58MHz Check the crystal ICS01 TIMER/ SYSCON...

  • Page 31

    TROUBLESHOOTING GUIDE 3-5) NO SOUND PLAYBACK Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 ICY01 VCR Y/C LA71550M SW Vcc A Vcc Check the voltage CCU12 (5V) AUDIO HEAD ICS01 TIMER/ SYSCON #65 #67 Check the voltage A.MUTE...

  • Page 32

    3-6) NO RECORD PICTURE Check the waveform of ICY01 #40 HEAD Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 C Vcc CCD Vcc ICY01 VCR Y/C LA71550M SW Vcc Y Vcc Check the voltage (5V) Check waveform...

  • Page 33

    TROUBLESHOOTING GUIDE 3-7) NO RECORD SOUND Check the waveform of ICY01 #74 Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 SW Vcc A Vcc Check the voltage (5V) ICS01 TIMER/ SYSCON #65 #67 Check the voltage A.MUTE H : QUE/REV/STILL...

  • Page 34

    3-8) NO EXTERNAL VIDEO / AUDIO Check RESET the voltage Vcc(5V) Vcc(5V) Vcc(5V) Check SCL/SDA signal SDATA SCLK #16 #17 ICY01 VCR Y/C LA71550M SW Vcc A Vcc Check the voltage (5V) AUDIO IN JP01 EXT INPUT ICS01 TIMER/ SYSCON #65 #67 CVS OUT AUDIO OUT...

  • Page 35: Electrical Parts List

    ELECTRICAL PARTS LIST CAUTION “ I“ is safety component, so it must be used the same component. r DVQ-19H1FC PART CODE PART NAME ZZ100 48B4139A02 TRANSMITTER REMOCON ZZ110 PTACPWJ690 ACCESSORY AS 486A716200 BATTERY 485860710 MANUAL INSTRUCTION M821 4858213800 BAG INSTRUCTION ZZ120 PTBCSHJ690 COVER BACK AS...

  • Page 36

    PART CODE PART NAME C512 CMXB1H333J C MYLAR C518 CMXB1H473J C MYLAR C525 CEXF1C101A C ELECTRO C604 CEXF1C101A C ELECTRO C605 CEXF1E331V C ELECTRO C606 CEXF1E471V C ELECTRO C801 CL1JB3474K C LINE ACROSS C802 CCXB2H222K C CERA C803 CCXB2H222K C CERA C804 CEYN2E221P C ELECTRO...

  • Page 37

    ELECTRICAL PARTS LIST PART CODE PART NAME CCS12 HCBK103KCA C CHIP CERA CCS13 HCBK103KCA C CHIP CERA CCS14 HCTAF109MB C CHIP TANTAL CCS16 HCBK103KCA C CHIP CERA CCS18 HCQK180JCA C CHIP CERA CCS19 HCQK180JCA C CHIP CERA CCS20 HCQK240JCA C CHIP CERA CCS21 HCQK240JCA C CHIP CERA...

  • Page 38

    PART CODE PART NAME CCY29 HCTAD100MB C CHIP TANTAL CCY30 HCTAF109MB C CHIP TANTAL CCY31 HCFK104ZCA C CHIP CERA CCY32 HCBK103KCA C CHIP CERA CCY33 HCBK103KCA C CHIP CERA CCY34 HCBK103KCA C CHIP CERA CCY35 HCBK103KCA C CHIP CERA CCY36 HCTBC470MB C CHIP TANTAL CCY38...

  • Page 39

    ELECTRICAL PARTS LIST PART CODE PART NAME F801B 4857415001 CLIP FUSE I301 1LA7841--- IC VERTICAL I301 PTB2SW7100 HEAT SINK ASS`Y I301A 4857027100 HEAT SINK I301B 7174300811 SCREW TAPPTITE I501 1DCT814B-- IC CHROMA I601 1TDA7267A- IC AMP I801 4850M04310 MODULE POWER I803 PTX2SW6900 HEAT SINK ASS`Y...

  • Page 40

    PART CODE PART NAME P601 485923162S CONN WAFER P802A 4859242220 CONN WAFER P803 4850701S06 CONNECTOR P804 4857417500 TERM PIN PA501 4850708N08 CONNECTOR PAS03 4850707V03 CONNECTOR PAU01 4850706N07 CONNECTOR PS01 4859278120 CONN WAFER PS02 4859278220 CONN WAFER PS04 485923182S CONN WAFER PWC01 4859907910 CORD POWER AS...

  • Page 41

    ELECTRICAL PARTS LIST PART CODE PART NAME R833 RD-4Z472J- R CARBON FILM R836 RN01B124JS R METAL FILM R889 RC-2Z565KP R CARBON COMP R902 RN01B152JS R METAL FILM R903 RN01B152JS R METAL FILM R904 RN01B152JS R METAL FILM R905 RN01B124JS R METAL FILM R906 RN01B124JS R METAL FILM...

  • Page 42

    PART CODE PART NAME RCS03 HRFT102JCA R CHIP RCS06 HRFT000-CA R CHIP RCS07 HRFT103JCA R CHIP RCS08 HRFT473JCA R CHIP RCS09 HRFT393JCA R CHIP RCS10 HRFT103JCA R CHIP RCS11 HRFT154JCA R CHIP RCS12 HRFT154JCA R CHIP RCS14 HRFT103JCA R CHIP RCS15 HRFT362JCA R CHIP...

  • Page 43

    ELECTRICAL PARTS LIST PART CODE PART NAME RCU07 HRFT122JCA R CHIP RCU08 HRFT122JCA R CHIP RCU09 HRFT272JCA R CHIP RCU10 HRFT122JCA R CHIP RCU11 HRFT273JCA R CHIP RCU12 HRFT223JCA R CHIP RCU13 HRFT223JCA R CHIP RCU14 HRFT103JCA R CHIP RCU15 HRFT512JCA R CHIP RCU16...

  • Page 44

    HD-15D XCS01 FSA37012M XS02 TSM-3541T3 XY01 DE0-006 Z101 DT5-NF20F Z102 DVQ-13H1FC PART CODE DESCRIPTION S3BW216B (L=600 MM) IMT-06 1.6KV BUP 6900PF J YH025-03+35098+ULW=500 1W 470 OHM J SMALL 1W 3.6 OHM J SMALL 1/10 11K OHM J 2012 1/10 8.2K OHM J 2012...

  • Page 45

    EXPLODED VIEW 1. DVQ-19H2FC...

  • Page 46

    EXPLODED VIEW 2. DVQ-19H1FC...

  • Page 47

    EXPLODED VIEW 3. DVQ-13H2FC...

  • Page 48

    EXPLODED VIEW 4. DVQ-13H1FC...

  • Page 49

    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 : G7F00E@web.dwe.co.kr TEL : 82-2-360-8179 FAX : 82-2-360-8184 PRINTED DATE : JUNE 1999...

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