Daewoo CN-071 Service Manual Download | Manualshive

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RC911 HRFT272JCA

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PART CODE

PART NAME

DESCRITION

ELECTRICAL PARTS LIST

I

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Summary of Contents for CN-071

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: ...TENTS 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 EXP...

Page 3: ...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...

Page 4: ...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 vo...

Page 5: ...entilation 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 origi...

Page 6: ...YSTEM 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 O...

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 EXOR...

Page 10: ...ned 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 B...

Page 11: ...r 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 W...

Page 12: ...llator 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 3...

Page 13: ...5 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...

Page 14: ...ference 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 c...

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...

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...

Page 19: ...501 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 Re...

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 TDA7...

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 TA...

Page 22: ...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...

Page 23: ...eck 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...

Page 24: ...ta 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 Che...

Page 25: ...IDE 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 5...

Page 26: ...8 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...

Page 27: ...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...

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...

Page 29: ...V 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...

Page 30: ...k 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...

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 Ch...

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 V...

Page 33: ...6MHz 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...

Page 34: ...02 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...

Page 35: ...H1FC 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 BR...

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 HCTAJ2...

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...

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...

Page 39: ...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 L...

Page 40: ...ART 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 T...

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 HRFT...

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...

Page 43: ...012 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...

Page 44: ...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 48507...

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 JU...

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