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Daewoo DVQ-13H1FC manual

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Table of contents for the manual

  • Page 1

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

  • Page 2

    1 TABLE OF CONTENTS SAFETY PRECAUTIONS ................................................................................................. 2 SPECIFICATION .......................................................................................................... 5 BLOCK DIAGRAM ..........................................................................[...]

  • Page 3

    2 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[...]

  • Page 4

    3 SAFETY PRECAUTIONS 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 servici[...]

  • Page 5

    4 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 it. 2. Use only recommended factory replacement tubes. SUBJECT : TIPS ON PROPER INSTALLATION 1. Never [...]

  • Page 6

    5 SPECIFICATION ITEMS MODEL DVQ-13/19H1FC, DVQ-13/19H2FC REMARK TV SECTION STANDARD NTSC-M 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 SECTION FORMAT VHS NTSC Standard VCR SYSTEM Ro[...]

  • Page 7

    6 BLOCK DIAGRAM[...]

  • Page 8

    7 BLOCK DIAGRAM PH01[...]

  • Page 9

    8 IC DESCRIPTION ICS01 DW37760MCA-AA1(M37760) : IC TIMER / SYSCON / CTL PROCESSOR 99 100 98 97 96 94 95 93 92 91 89 90 88 87 86 84 85 83 82 81 KEY1 AGC IN OPTION DRUM SELECT PATH ADJUST VIDEO ENV END SENSOR START SENSOR POWER SAFETY AFT CAPSTAN I LIMIT QV SYNC REMOCON INPUT 32 31 33 34 35 37 36 38 39 40 42 41 43 44 45 47 46 48 49 50 80 79 78 77 76 [...]

  • Page 10

    9 IC DESCRIPTION 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 : 100 PIN QFP 7) Tuner (Pre-scaler) : IIC BUS[...]

  • Page 11

    10 IC DESCRIPTION 2. PIN DESCRIPTION Pin Terminal Name Explanation Remarks 1 P11(0) KEY 1 IN Power, Ch up/down, Vol up/down 2 P7(7) AGC IN Connect this port to AGC of Tuner. Default voltage :3.75V Variable voltage : 3.25V, 3.5V, 3.75V 3 P7(6) OPTION H(5V) : Parental control M(2.5V) : Child lock L(0V) : None 4 P7(5) DRUM SELECT H(5V) : NTSC 4 head L[...]

  • Page 12

    11 26 P4(7) AUDIO MUTE H Connect this port to 95 pin of ICY01. When special play, set audio mute. 27 P4(6) Not used 28 P4(5) REC LED H Light up LED(RED) when recording 29 P4(4) TIMER REC LED H Light up LED(GREEN) when ready to programming record. 30 P4(3) MONITOR ON H When CRT on, set "H". 31 P4(2) VCR ON H Recording when CRT off, set &qu[...]

  • Page 13

    12 60 P0(4) OSD BLANK OUT Fast blanking control signal. Switch TV image signal and Caption/OSD image signal. 61 P0(3) Not used 62 P0(2) OSD B OUT Blue output terminal of OSD image. 63 P0(1) OSD G OUT Green output terminal of OSD image. 64 P0(0) OSD R OUT Red output terminal of OSD image. 65 P10(7) S DATA IIC data I/O. Control VCR Y/C, TUNER, EEPROM[...]

  • Page 14

    13 89 P8(1) DRUM FG IN Drum Frequency Generator signal input. Feed back Drum rotation speed. 90 DRUM PG IN Drum Pulse Generator signal input. Feed back Drum rotation phase. 91 AMP REF IN Control pulse AMP reference input terminal. 92 AMP REF OUT Control pulse AMP reference output terminal. 93 P8(0) C AMP filter. 94 CTL- Input control pulse when pla[...]

  • Page 15

    14 IC DESCRIPTION IC501 DCT814B(LA76814B) : IC VIDEO PROCESSOR[...]

  • Page 16

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

  • Page 17

    16 IC DESCRIPTION I801 POWER CONTROL MODULE PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GATE DRIVE1 10 +12V INPUT 2 OCP 11 POWER CONTROL 3 SOURCE 12 +26 OUTPUT 4 GND1 13 GND2 5 GATE 14 +133V INPUT 6 GATE DRIVE2 DPM 001 TI KSE 1 2 3 4 5 6 10 11 12 13 14[...]

  • Page 18

    17 TROUBLESHOOTING GUIDE 1. NO POWER T801 B+ PWC01 L801 F801 R802 Check F801(125V 4A) C804 D801 Check D801(PBS208GU) Check R802(10W 2.2) R 8 0 3 R804 R805 R807 L802 L 803 C 8 05 Q801 Check Waveform I801 #1 #3 #5 #10 #14 #11 10V 133V VCR ON H FROM U-COM #31 ON/OFF Check Voltage Check Voltage 133V 45V 10V 12V Check Voltage Check Voltage TUNER 33V H/D[...]

  • Page 19

    18 TROUBLESHOOTING GUIDE 2. TV PART 2-1) NO PICTURE Check the waveform of I501 #46 NG : GO to the figure a OK : GO to the figure b Check Voltage a U102 TUNER ICS01 TIMER/SYSCON 33V 5V #65 #67 MDATA MCLK Check Signal I501 Z101 SAW FILT IF OUT #5 #6 #10 #10 AFT #8 Check IF Vcc(5V) #71 #72 SCLK SDATA #12 #11 Check Signal Check Voltage #3 #4 #46 #44 Z5[...]

  • Page 20

    19 TROUBLESHOOTING GUIDE 2-2) NO SOUND Check the waveform of I501 #1 NG : GO to the figure c OK : GO to the figure d Check Voltage c U102 TUNER ICS01 TIMER/SYSCON 33V 5V #65 #67 MDATA MCLK Check Signal I501 Z101 SAW FILT IF OUT #5 #6 #10 #10 AFT #8 Check IF Vcc(5V) #71 #72 SCLK SDATA #12 #11 Check Signal Check AGC Voltage #3 #54 #52 #35 #36 #38 #39[...]

  • Page 21

    20 TROUBLESHOOTING GUIDE 2-3) CHANNEL DON ’ T STOP Check the input signal conditions. NG : Loss of signal or weak signal OK : GO to the figure e Check Voltage e U102 TUNER ICS01 TIMER/SYSCON 33V 5V #65 #67 MDATA MCLK I501 Z101 SAW FILT IF OUT #5 #6 #10 #10 AFT #8 Check IF Vcc(5V) #71 #72 SCLK SDATA #12 #11 Check Signal Check AGC Voltage #3 #48 #4[...]

  • Page 22

    21 TROUBLESHOOTING GUIDE 2-4) NO COLOR I501 DCT814B #44 Check CVS waveform CC527 #18 R504 Check the voltage RGB Vcc(9V) R OUT G OUT B OUT R505 R506 R507 Check R/G/B signal #19 #21 #20 X501 3.58MHz Check the crystal #38 L502 Chroma/DEF Vcc #43 Check the voltage[...]

  • Page 23

    22 TROUBLESHOOTING GUIDE 2-5) NO VERTICAL DEFLECTION I501 DCT814B 5V #24 X501 3.58MHz Check the crystal #38 L502 Chroma/DEF Vcc #43 Check the voltage CC508 CC507 Check the voltage (2.5V) V RAMP ALC filter #23 I301 LA7841 RC301 #5 #2 Check vertical output signal Invert RAMP IN OUTPUT VERTICAL D.Y Check the waveform If no output then change I301 #6 D[...]

  • Page 24

    23 TROUBLESHOOTING GUIDE 2-6) NO ON-SCREEN DISPLAY I501 DCT814B XCS01 #64 32KHz Check the crystal OSD R Check data/clock signal Check the waveform ICS01 TIMER/SYSCON OSD G OSD B BLANK #63 #62 #60 #14 #15 #16 #17 #71 #72 MCLK MDATA XS02 LS01 16MHz #35 #36 #38 #39 #44 #45 Check OSD R/G/B/BLK signal #12 #11 #58 #59 H.SYNC V.SYNC Check the signal (15,7[...]

  • Page 25

    24 TROUBLESHOOTING GUIDE 2-7) REMOTE CONTROL DOES NOT OPERATE XCS01 #14 32KHz Check the crystal Check the voltage ICS01 TIMER/SYSCON #100 XS02 KEY 1 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #1 KEY 0 IT01 REMOCON PREAMP RT01 Vcc(5V) Check the waveform[...]

  • Page 26

    25 TROUBLESHOOTING GUIDE 3. VCR PART 3-1) NO LOADING Check the loading conditions (VHS TAPE) EJECT : GO to the figure f UNLOADING : GO to the figure g XCS01 #7 32KHz Check the crystal Check the voltage ICS01 TIMER/SYSCON #8 XS02 RS91 SS01 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #80 DS03 SS04 SS03 IR LED END SENSOR f START SENSOR RS90 SS02 Vcc(5[...]

  • Page 27

    26 TROUBLESHOOTING GUIDE 3-2) NO ROTATING Check the Rotating DRUM : GO to the figure h CAPSTAN : GO to the figure i PS01 DRUM CONNECTOR XCS01 32KHz Check the crystal D-FG Pulse Check the voltage ICS01 TIMER/SYSCON D-PG Pulse D-PWM #89 #3 & #4 #6 #90 #77 XS02 16MHz #35 #36 #38 #39 Check D-PG/FG waveform #2 #1 #58 #59 #37 #34 RESET Vcc(5V) If PG/[...]

  • Page 28

    27 TROUBLESHOOTING GUIDE 3-3) NO PICTURE PLAYBACK Check the waveform of ICY01 #27 NG : GO to the figure j OK : GO to the figure k ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) j #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage (5V) Vide[...]

  • Page 29

    28 TROUBLESHOOTING GUIDE ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) k #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage (5V) SCLK SDATA Check the crystal #16 #17 Check SCL/SDA signal I501 CHROMA DCT814B #42 #27 If CVS no signal, then [...]

  • Page 30

    29 TROUBLESHOOTING GUIDE 3-4) NO COLOR PLAYBACK ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage (5V) SCLK SDATA Check the crystal #16 #17 Check SCL/SDA signal I501 CHROMA DCT814B #42 #27 If[...]

  • Page 31

    30 TROUBLESHOOTING GUIDE 3-5) NO SOUND PLAYBACK ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage (5V) SCLK SDATA Check the crystal #16 #17 Check SCL/SDA signal CCU12 #81 If no signal, then c[...]

  • Page 32

    31 TROUBLESHOOTING GUIDE 3-6) NO RECORD PICTURE Check the waveform of ICY01 #40 NG : GO to the figure 2-1 (TV PART) OK : GO to the figure m ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage ([...]

  • Page 33

    32 TROUBLESHOOTING GUIDE 3-7) NO RECORD SOUND Check the waveform of ICY01 #74 NG : GO to the figure 2-2 (TV PART) OK : GO to the figure n ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #98 #99 Vcc(5V) Vcc(5V) Check the voltage (5V) SCLK SDATA Check [...]

  • Page 34

    33 TROUBLESHOOTING GUIDE 3-8) NO EXTERNAL VIDEO / AUDIO ICY01 VCR Y/C LA71550M XCS01 32KHz Check the crystal Check the voltage ICS01 TIMER/ SYSCON #65 #67 XS02 16MHz #35 #36 #38 #39 #37 #34 RESET Vcc(5V) #98 #99 Vcc(5V) Vcc(5V) Check the waveform Check the voltage (5V) SCLK SDATA Check the crystal #16 #17 Check SCL/SDA signal #27 AUDIO OUT #39 #75 [...]

  • Page 35

    34 ELECTRICAL PARTS LIST r DVQ-19H1FC LOC PART CODE PART NAME DESCRITION ZZ100 48B4139A02 TRANSMITTER REMOCON R-39A02 ZZ110 PTACPWJ690 ACCESSORY AS DVQ-20H1FC 20 486A716200 BATTERY AAAM 1.5V 40 485860710 MANUAL INSTRUCTION DVQ-14/20H1FC M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400 ZZ120 PTBCSHJ690 COVER BACK AS DVQ-20H1FC M211 4852153100 C[...]

  • Page 36

    35 C512 CMXB1H333J C MYLAR 50V EU 0.033MF J (TP) C518 CMXB1H473J C MYLAR 50V 0.047MF J (TP) C525 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP C604 CEXF1C101A C ELECTRO 16V RSM 100MF (6.3X7) TP C605 CEXF1E331V C ELECTRO 25V RSS 330MF (10X12.5)TP C606 CEXF1E471V C ELECTRO 25V RSS 470MF (10X16) TP C801 CL1JB3474K C LINE ACROSS AC250V 0.47MF U/C/SNDF/[...]

  • Page 37

    36 CCS12 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCS13 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCS14 HCTAF109MB C CHIP TANTAL 16V 1MF M 3216 CCS16 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCS18 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 CCS19 HCQK180JCA C CHIP CERA 50V CH 18PF J 2012 CCS20 HCQK240JCA C CHIP CERA 50V CH 24PF J 2012 CCS2[...]

  • Page 38

    37 CCY29 HCTAD100MB C CHIP TANTAL 10V 10MF M 3216 CCY30 HCTAF109MB C CHIP TANTAL 16V 1MF M 3216 CCY31 HCFK104ZCA C CHIP CERA 50V Y5V 0.1MF Z 2012 CCY32 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCY33 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCY34 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 CCY35 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 [...]

  • Page 39

    38 F801B 4857415001 CLIP FUSE PFC5000-0702 I301 1LA7841--- IC VERTICAL LA7841 I301 PTB2SW7100 HEAT SINK ASS`Y 1LA7841--- + 7174300811 I301A 4857027100 HEAT SINK SPCC T1.0+SN I301B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN I501 1DCT814B-- IC CHROMA DCT814B I601 1TDA7267A- IC AMP TDA7267A I801 4850M04310 MODULE POWER DPM001T1 I803 PTX2SW6900 HEAT SI[...]

  • Page 40

    39 P601 485923162S CONN WAFER YW025-03 (STICK) P802A 4859242220 CONN WAFER YFW800-02 P803 4850701S06 CONNECTOR YFH800-01+YPT018+ULW=300 P804 4857417500 TERM PIN DA-IB0214(D2.3/DY PIN) PA501 4850708N08 CONNECTOR BIC-08T-25T+C-20T+ULW=400 PAS03 4850707V03 CONNECTOR 60-8283-3078-45+ULW=100 PAU01 4850706N07 CONNECTOR 60-8283-3068-45+USW=250 PS01 485927[...]

  • Page 41

    40 R833 RD-4Z472J- R CARBON FILM 1/4 4.7K OHM J R836 RN01B124JS R METAL FILM 1W 120K OHM J SMALL R889 RC-2Z565KP R CARBON COMP 1/2 5.6M OHM K R902 RN01B152JS R METAL FILM 1W 1.5K OHM J SMALL R903 RN01B152JS R METAL FILM 1W 1.5K OHM J SMALL R904 RN01B152JS R METAL FILM 1W 1.5K OHM J SMALL R905 RN01B124JS R METAL FILM 1W 120K OHM J SMALL R906 RN01B12[...]

  • Page 42

    41 RCS03 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RCS06 HRFT000-CA R CHIP 1/10 0 OHM 2012 RCS07 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCS08 HRFT473JCA R CHIP 1/10 47K OHM J 2012 RCS09 HRFT393JCA R CHIP 1/10 39K OHM J 2012 RCS10 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RCS11 HRFT154JCA R CHIP 1/10 150K OHM J 2012 RCS12 HRFT154JCA R CHIP 1/10 150K OHM J 201[...]

  • Page 43

    42 RCU07 HRFT122JCA R CHIP 1/10 1.2K OHM J 2012 RCU08 HRFT122JCA R CHIP 1/10 1.2K OHM J 2012 RCU09 HRFT272JCA R CHIP 1/10 2.7K OHM J 2012 RCU10 HRFT122JCA R CHIP 1/10 1.2K OHM J 2012 RCU11 HRFT273JCA R CHIP 1/10 27K OHM J 2012 RCU12 HRFT223JCA R CHIP 1/10 22K OHM J 2012 RCU13 HRFT223JCA R CHIP 1/10 22K OHM J 2012 RCU14 HRFT103JCA R CHIP 1/10 10K OH[...]

  • Page 44

    43 SWT08 5S50101090 SW TACT SKHV17910A T401 50D0000022 TRANS DRIVE HD-15D T402 50H0000198 FBT FSA37012M T802 50M3541T3- TRANS SMPS TSM-3541T3 TU01 5800000032 COIL OSC DE0-006 U102 4859719130 TUNER VARACTOR DT5-NF20F LOC PART CODE PART NAME DESCRITION X501 5XE3R5795C CRYSTAL QUARTZ HC-49/U 3.579545MHZ 20PPM XCS01 HXA32R768C CRYSTAL CHIP QUARTZ 32.76[...]

  • Page 45

    44 EXPLODED VIEW 1. DVQ-19H2FC[...]

  • Page 46

    45 EXPLODED VIEW 2. DVQ-19H1FC[...]

  • Page 47

    46 EXPLODED VIEW 3. DVQ-13H2FC[...]

  • Page 48

    47 EXPLODED VIEW 4. DVQ-13H1FC[...]

  • Page 49

    DAEWOO ELECTRONICS CO., LTD 686, AHYEO N -D ONG MAP O -GU SEOUL , KO REA C.P .O. BOX 8003 SE OU L, KOREA TELEX : D WELEC K28177-8 C A BL E : “D AEW O O ELE C” E-mail : G7F00E@w eb. dwe. co.kr TEL : 82- 2- 360- 8179 F AX : 82-2-360-8184 PRINTED DATE : JUNE 1999[...]