Daewoo DVQ-13H1FC, Service 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: ...NTENTS 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 34 EXPLODED VIEW 44 ...

Page 3: ...R THIS TUBE DOES NOT EMIT X RAYS WHEN THE HIGH VOLT AGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERATION AT HIGHER VOLT AGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLTAGE SUPPLY AND UNDER CERTAIN CIRCUMSTANCES AMY PRODUCE RADIA TION IN EXCESS OF DESIRABLE LEVELS 2 ONLY FACTORY SPECIFIED C R T ANODE CONNECTORS MUST BE USED DEGAUSSING SHIELD...

Page 4: ...e corrected imme diately GRAPHIC SYMBOLS The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the service personnel to the presence of uninsu lated dangerous voltage that may be of suffi cienty magnitude to constitute a risk of electric shock The exclamation point within an equilateral tri angle is intended to alert the service personnel to the presence of ...

Page 5: ...ventilation 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 feet or the equivalent thickness in spacers to provide adequate are flow across the bottom bolts or screws used for fasteners must not touch and parts or wiring Perform leakage test on cus tomize...

Page 6: ...SYSTEM Rotary 2 Head Helical Scanning Monaural System AUDIO RECORDING SYSTEM Monaural TAPE SPEED SP 33 35mm sec EP 11 12mm sec LP 16 67mm sec PLAY ONLY INPUT Video 1Vp p 75 Ohm Audio 3 8dBm over 100K Ohm TIMER PROGRAMING 6 Event 1 Month GENERAL POWER INPUT AC 120V 60Hz POWER CONSUMPTION 13 60W 19 70W SOUND OUTPUT 1 3W SPEAKER 3W 8 OHM OPRATING TEMPERATRE 5 C to 40 C REMOTE CONTROL R 39A02 SPECIAL ...

Page 7: ...6 BLOCK DIAGRAM ...

Page 8: ...7 BLOCK DIAGRAM PH01 ...

Page 9: ... 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 P11 0 AN8 P7 1 AN1 P7 0 AN0 P7 2 AN2 P7 3 AN3 P7 4 AN4 P7 5 AN5 P7 6 AN6 P7 7 AN7 P6 1 EXORout0 HASW P6 0 EXORin ENVS P6 2 EXORout1 CROT P6 3 RTP02 GEN P6 4 RTP03 VSYNC P6 5 RTP10 DA0 P6 6 RTP11 DA1 P6 7 AN10 ADTRG P5 1 RTP21 P5 0 RTP20 P5 2 RTP22 P5 3 RTP23 P5 4 RTP24 P5 5 RTP25 P5 6 RTP00 AHSW P5 7 RTP01 VHSW P4 7 P4 6 P4 ...

Page 10: ...gned 5 On Screen Display function is interior designed 6 Package 100PIN QFP 7 Tuner Pre scaler IIC BUS PLL IC TAU 6014 S SIEMENS 8 REMOCON The IC of transmission MITSUBISHI M50560 9 EEPROM 24AT08 IIC BUS 10 10 Local Key A D input control KEY 0 REC REW PLAY FF STOP EJECT KEY 1 POWER CH UP DOWN VOL UP DOWN 11 Option S W Port A D input Option check 12 IF V C D IC DCT814B LA76814B 13 VCR Y C A IC LA71...

Page 11: ...er Z Hold down 10 P6 7 AFT IN DC voltage that comes from the 10 pin of DCT814B 11 P6 6 CAPSTAN I LIMIT OUT Limit the current of CAPSTAN MOTOR Set L during PAUSE STILL 12 P6 5 Not used 13 P6 4 QV SYNC When special play Quasi Vertical SYNC insert V SYNC of C V S Special play QUE REV STILL SLOW 14 P6 3 REMOCON INPUT Remote Controller pulse input 15 P6 2 COLOR ROTARY OUT When color MOD DEMOD phase shi...

Page 12: ...illator 39 pin is output terminal for crystal oscillator 39 Xout Xout 40 Vss Vss GND Negative power supply 41 P2 2 OSCin3 Not used 42 P2 1 OSCout3 Not used 43 CLK SELECT When MICOM to start decide to 32 768KHz or 16MHz Set L 32 768KHz 44 P2 0 OSCin2 It uses LC oscillator Set the OSD position 38 pin is input terminal for LC oscillator 39 pin is output terminal for LC oscillator 45 P1 7 OSCout2 46 N...

Page 13: ...75 P9 5 PWM2 Not used 76 P9 4 CAPSTAN PWM Control rotate speed of Capstan Motor Period of PWM 23 4KHz 77 P9 3 DRUM PWM Control rotate speed of Drum Motor Period of PWM 23 4KHz 78 P9 2 POWER FAIL Input L MICOM is Hold mode Backup time approx 30minute 79 P9 1 RLS IN Supply reel Take up reel pulse input terminal Use to check the Tape remain or high speed rewind and fast forward 80 P9 0 RLT IN 81 P8 7...

Page 14: ...eference input terminal 92 AMP REF OUT Control pulse AMP reference output terminal 93 P8 0 C AMP filter 94 CTL Input control pulse when playing 95 CTL Output control pulse when recording 96 AMP C AMP condenser 97 CTL AMP OUT Check Control pulse 98 Vcc AMP Vcc Ever 5V 0 5V 99 Vcc ANALOG Vcc Ever 5V 0 5V 100 P11 1 KEY 0 IN REC REW PLAY FF STOP EJECT Pin Terminal Name Explanation Remarks IC DESCRIPTI...

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: ... 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: ... H FROM U COM 31 ON OFF Check Voltage Check Voltage 133V 45V 10V 12V Check Voltage Check Voltage TUNER 33V H D TRANS 45V 133V R820 C821 D820 L824 Q821 C826 D821 D822 TO I501 34 OCP C822 C823 C829 L823 K1A7805 PQ05RF11 PQ12RF11 BACKUP 5V EVER 5V VCR 5V MOTOR 12V SOUND 12V DS01 DS02 Check Voltage Check Voltage R110 STAND BY VCR ON CRT ON STATUS ICS01 31 VCR ON ICS01 30 POWER ON L H H L L H D823 C824...

Page 19: ...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 Z502 4 5M TRAP Check Waveform 35 36 38 39 Check the X TAL XS02 XCS01 37 34 Check Reset VCC b I501 44 Check Signal Z502 CC527 18 Check Vcc 9V 19 20 21 Check RGB Signal 43 25 13 Check ABL current T402 FBT Check CHROMA Vcc 5V Check HOR Vcc 5V D401 R403 Check Heater Vp p 6 2Vrms Check ...

Page 20: ... 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 Check the X TAL XS02 XCS01 37 34 Check Reset VCC d CC602 Check Voltage Check AUDIO Signal 4 I601 TDA7267A Check AUDIO OUT C605 Check FM filter circuit 9 Check SIF Signal If SIF no signal then change I501 1 SOUND 12V R604 C604 3 2 Check Earphone ICS01 25 SOUND MUTE H Mute L Normal QC601 C606 3W 8 OHM...

Page 21: ... 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 49 35 36 38 39 Check the X TAL XS02 XCS01 37 34 VCC Check VCO COIL 10 AGC IN CC116 L110 VCO COIL 56 40 Caption CVS Check Waveform CVS 2Vp p Reset IS02 EEPROM 6 5 8 VCC Check SDA SCL ...

Page 22: ...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: ...heck 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 D404 Vertical IC Vcc 26V From FBT ...

Page 24: ...ata 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 734Hz Check the signal 60Hz 37 34 RESET Vcc 5V If OSD does not operate then change the ICS01 ...

Page 25: ...UIDE 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: ...38 39 37 34 RESET Vcc 5V 80 DS03 SS04 SS03 IR LED END SENSOR f START SENSOR RS90 SS02 Vcc 5V TAKE UP SENSOR SUPPLY SENSOR 79 Check waveform g XCS01 32KHz Check the crystal ICS01 TIMER SYSCON XS02 16MHz 35 36 38 39 37 34 RESET Vcc 5V 74 PAS03 CAM DATA A B C D See the IC description ICS01 SYSCON part 73 81 82 83 84 Check voltage IS02 LOADING DRIVE BA6209 Loading F R Loading ON 6 5 Check voltage Load...

Page 27: ...2 16MHz 35 36 38 39 Check D PG FG waveform 2 1 58 59 37 34 RESET Vcc 5V If PG FG no signal then change the DRUM h 98 99 Vcc 5V Vcc 5V Vcc 12V PS02 CAPSTAN CONNECTOR XCS01 32KHz Check the crystal CAP FG Pulse Check the voltage ICS01 TIMER SYSCON CAP PWM 11 87 5 6 3 76 XS02 16MHz 35 36 38 39 Check CAP FG waveform 1 7 58 59 37 34 i 98 99 Vcc 12V RESET Vcc 5V Vcc 5V Vcc 5V Vcc 5V Vref 2 5V 4 CAP I LIM...

Page 28: ... 34 RESET Vcc 5V j 98 99 Vcc 5V Vcc 5V Check the waveform Check the voltage 5V Video Envelope PB RF SCLK SDATA Check the crystal 16 17 Check SCL SDA signal IZ01 PREAMP LA70001 19 17 16 7 1 If PB RF no signal then change the IZ01 2HEAD DRUM 58 56 39 11 Y Vcc SW Vcc CCD Vcc C Vcc 5 19 C SYNC Check the waveform 4 11 6 6 REC H VH SW Pulse 13 QV SYNC 14 20 18 Check the waveform 30Hz Check voltage Vcc C...

Page 29: ...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 change the IY01 CVS 58 56 39 11 Y Vcc SW Vcc CCD Vcc C Vcc 12 11 72 71 56 MDATA MCLK Check MCL MDA signal 40 Caption CVS R OUT G OUT B OUT See the 2 1 TV NO PICTURE 21 20 19 Check the waveform ...

Page 30: ...ck 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 change the ICY01 CVS 58 56 39 11 Y Vcc SW Vcc CCD Vcc C Vcc 12 11 72 71 56 MDATA MCLK Check MCL MDA signal 40 Caption CVS R OUT G OUT B OUT See the 2 4 TV NO COLOR 21 20 19 XY01 66 67 3 58MHz Check the crystal Check the waveform 13 12 Check the waveform 52 63...

Page 31: ... Check the waveform Check the voltage 5V SCLK SDATA Check the crystal 16 17 Check SCL SDA signal CCU12 81 If no signal then change the ICY01 AUDIO OUT 39 75 A Vcc SW Vcc 12 11 72 95 71 26 MDATA MCLK Check MCL MDA signal QCU02 Invert PB H from ICS01 20 REC H PB L 90 86 I501 CHROMA DCT814B AUTO BIAS 88 51 SOUND AMP 1 See the 2 2 TV NO SOUND AUDIO HEAD Check the voltage H QUE REV STILL L NORMAL PLAY ...

Page 32: ... Check the voltage 5V REC Y SCLK SDATA Check the crystal 16 17 Check SCL SDA signal IZ01 PREAMP LA70001 19 17 16 9 5 If REC Y C no signal then change the ICY01 2HEAD DRUM 58 56 39 11 Y Vcc SW Vcc CCD Vcc C Vcc 5 19 C SYNC Check the waveform 4 11 REC H VH SW Pulse 15 20 18 Check waveform 30Hz Check voltage Vcc Check the voltage 5V 13 Check waveform 31 32 9 10 94 95 CTL HEAD CTL CTL Check the wavefo...

Page 33: ...16MHz 35 36 38 39 37 34 RESET Vcc 5V 98 99 Vcc 5V Vcc 5V Check the voltage 5V SCLK SDATA Check the crystal 16 17 Check SCL SDA signal 2 39 75 A Vcc SW Vcc 72 95 71 26 AUDIO HEAD Invert REC H from ICS01 20 REC H PB L 83 81 AUTO BIAS 86 Check the voltage H QUE REV STILL L NORMAL PLAY A MUTE 85 88 Check the waveform 3 6 4 86 AUDIO ERASE HEAD FULL ERASE HEAD Check the waveform 70KHz If SINE wave no si...

Page 34: ...S02 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 A Vcc SW Vcc 12 11 72 71 MDATA MCLK Check MCL MDA signal 36 I501 CHROMA DCT814B 78 42 2 CVS OUT 81 JP01 EXT INPUT Check the waveform AUDIO IN CVS IN Check the voltage 5V IF Vcc ...

Page 35: ...0H1FC M201 4852070100 MASK FRONT FR HIPS BK ZZ202 PTSPPWJ690 SPEAKER AS DVQ 20H1FC PA601 4850703S50 CONNECTOR YH025 03 35098 ULW 200 SP01 4858314310 SPEAKER SP 5070A01 3W 8 OHM SP01A 4851935501 SPKR BRKT AS 3951901 3952500 SP01B 4856013600 SCREW SPKR FIX SWRM SECC ZZ290 PTMPMSJ690 PCB MAIN MANUAL AS DVQ 20H1FC A001 4859812892 PCB MAIN 330X246 S1B C101 CMXB1H103J C MYLAR 50V EU 0 01MF J TP C102 CMX...

Page 36: ... LOC PART CODE PART NAME DESCRITION CC118 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC119 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC120 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC122 HCTAJ228MB C CHIP TANTAL 35V 0 22MF M 3216 CC123 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CC130 HCQK101JCA C CHIP CERA 50V CH 100PF J 2012 CC131 HCQK101JCA C CHIP CERA 50V CH 100PF J 2012 CC501 HCFK104...

Page 37: ... Y5V 0 1MF Z 2012 CCU02 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 LOC PART CODE PART NAME DESCRITION CCU04 HCTAD100MB C CHIP TANTAL 10V 10MF M 3216 CCU05 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 CCU06 HCTBC470MB C CHIP TANTAL 6 3V 47MF M 3528 CCU07 HCTAD100MB C CHIP TANTAL 10V 10MF M 3216 CCU09 HCBK153KCA C CHIP CERA 50V X7R 0 015MF K 2012 CCU10 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 CC...

Page 38: ... MEU 0 22MF J TP CS39 CEXF1C101A C ELECTRO 16V RSM 100MF 6 3X7 TP CS62 CEXF1E331V C ELECTRO 25V RSS 330MF 10X12 5 TP CS65 CEXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 TP CS66 CEXF1E331V C ELECTRO 25V RSS 330MF 10X12 5 TP CT01 CEXF1C470V C ELECTRO 16V RSS 47MF 5X11 TP CU03 CEXF1C101A C ELECTRO 16V RSM 100MF 6 3X7 TP CU14 CEXF1C470V C ELECTRO 16V RSS 47MF 5X11 TP LOC PART CODE PART NAME DESCRITION CU15...

Page 39: ...5 HRFT000 CA R CHIP 1 10 0 OHM 2012 LOC PART CODE PART NAME DESCRITION JC16 JC17 HRF8000 EA R CHIP 1 8 0 OHM 3216 JC19 JC21 HRF8000 EA R CHIP 1 8 0 OHM 3216 JP01 4859109950 JACK PIN BOARD PH JB 9710A L101 5CPX560J COIL PEAKING 56UH J RADIAL L102 58C5580019 COIL CHOKE TRF 9225 0 55UH L103 5CPZ220K02 COIL PEAKING 22UH K AXIAL 3 5MM L110 58N0000042 COIL VCO TRF V008 L401 58C0000026 COIL BEAD HC 4035 ...

Page 40: ...PART CODE PART NAME DESCRITION QCY02 T2SC2412KB TR CHIP 2SC2412K T146 BR QCY03 T2SA1037KB TR CHIP 2SA1037AKT146 R QCY04 T2SA1037KB TR CHIP 2SA1037AKT146 R QU04 TKTC3202Y TR KTC3202Y TP QU05 TKTA1266Y TR KTA1266Y TP R110 RD 4Z392J R CARBON FILM 1 4 3 9K OHM J R302 RN01B331JS R METAL FILM 1W 330 OHM J SMALL R305 RN01B471JS R METAL FILM 1W 470 OHM J SMALL R306 RN01B561JS R METAL FILM 1W 560 OHM J SMA...

Page 41: ... CHIP 1 10 12K OHM J 2012 RC519 HRFT102JCA R CHIP 1 10 1K OHM J 2012 LOC PART CODE PART NAME DESCRITION RC520 HRFT390JCA R CHIP 1 10 39 OHM J 2012 RC521 HRFT914JCA R CHIP 1 10 910KOHM J 2012 RC522 HRFT511JCA R CHIP 1 10 510 OHM J 2012 RC523 HRFT511JCA R CHIP 1 10 510 OHM J 2012 RC524 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC527 HRFT223JCA R CHIP 1 10 22K OHM J 2012 RC528 HRFT272JCA R CHIP 1 10 2 7K ...

Page 42: ... RCS61 HRFT103JCA R CHIP 1 10 10K OHM J 2012 LOC PART CODE PART NAME DESCRITION RCS62 HRFT103JCA R CHIP 1 10 10K OHM J 2012 RCS63 HRFT473JCA R CHIP 1 10 47K OHM J 2012 RCS64 HRFT103JCA R CHIP 1 10 10K OHM J 2012 RCS65 HRFT273JCA R CHIP 1 10 27K OHM J 2012 RCS66 HRFT201JCA R CHIP 1 10 200 OHM J 2012 RCS67 HRFT273JCA R CHIP 1 10 27K OHM J 2012 RCS68 HRFT201JCA R CHIP 1 10 200 OHM J 2012 RCS69 HRFT10...

Page 43: ...2012 RCY20 HRFT822JCA R CHIP 1 10 8 2K OHM J 2012 RCY21 HRFT182JCA R CHIP 1 10 1 8K OHM J 2012 RCY24 HRFT102JCA R CHIP 1 10 1K OHM J 2012 LOC PART CODE PART NAME DESCRITION RCY25 HRFT473JCA R CHIP 1 10 47K OHM J 2012 RCY26 HRFT473JCA R CHIP 1 10 47K OHM J 2012 RCZ01 HRFT473JCA R CHIP 1 10 47K OHM J 2012 RCZ02 HRFT183JCA R CHIP 1 10 18K OHM J 2012 RCZ03 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RCZ04 HR...

Page 44: ...0 MM X OPTION 0003 TRANS ANT MATCHING 4850A00250 IMT 06 X OPTION C402 C MYLAR CMYH3C692J 1 6KV BUP 6900PF J CMYH3C622J 1 6KV BUP 6200PF J RETRACE PA601 CONNECTOR 4850703S53 YH025 03 35098 ULW 500 4850703S50 YH025 03 35098 ULW 200 Q402A HEAT SINK X 4857027200 AL T1 0 Q402B SCREW TAPPTITE X 7174301011 TT2 RND 3X10 MFZN Q402C WASHER X 4856215201 SPCC R306 R METAL FILM RN01B471JS 1W 470 OHM J SMALL RN...

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: ... 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 ...