Daewoo DVQ-10H1FCN Скачать руководство пользователя

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TROUBLESHOOTING GUIDE

2-6) NO ON-SCREEN DISPLAY

I501

LA76845

S01

#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

(15,734Hz)

Check

the signal

(60Hz)

#37

#34

RESET

Vcc(5V)

If OSD does not operate,
then change the ICS01

Appendix

Содержание DVQ-10H1FCN

Страница 1: ...RDING 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...

Страница 2: ...SERVICE MODE ADJUSTMENTS 8 2 ASSEMBLY ADJUSTMENTS 10 3 VCR DECK ADJUSTMENTS 12 SCHEMATIC DIAGRAM 13 EXPLODED VIEW 15 PRINTED CIRCUIT BOARD 16 SERVICE PARTS LIST 18 IC DESCRIPTION 29 TROUBLESHOOTING GU...

Страница 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...

Страница 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 v...

Страница 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...

Страница 6: ...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 TI...

Страница 7: ...6 CIRCUIT BLOCK DIAGRAM...

Страница 8: ...7 CONNECTION DIAGRAM...

Страница 9: ...curser U move you wish to adjust item Using the volume up U or down buttons to enter in the sevice mode you wish to adjust You adjust the values of service mode automatically save to EEPROM Table A Ad...

Страница 10: ...ENTER Horizontal center 1 0 31 Using internal cross pattern CROSS BW 2 V SIZE Vetical Size 1 0 127 V CENTER Vertical Center 1 0 63 V SC Vertical S Correction 0 0 31 Must be set to 0 V LIN Vertical Lin...

Страница 11: ...nnel Enter the service mode and select service adjustment S5 You can see the OSD as shown in below Select AGC item press volume up U or down buttons until noise or beet in picture disappears 4 GEOMETR...

Страница 12: ...p or down buttons to select CROSS BW item Use the VOL up U button to select internal WHITE60 pattern Use the CH buttons to select RB GB BB item adjust data until a good white Use the CH buttons to sel...

Страница 13: ...VH SW RF 2 P G ADJUSTMENT S11 Playback the test tape DN 2 7KHz Enter the service mode and select service adjustment S11 Push the REC KEY once P G Adjustment is Automatically Connect oscilloscope CH1...

Страница 14: ...13 SCHEMATIC DIAGRAM POWER DEF...

Страница 15: ...14 SCHEMATIC DIAGRAM MAIN...

Страница 16: ...15 4859808660 4851941600 4859816191 MAIN PCB UNION PCB 246 X 246 X 51 6 DRN 9200 330 X 246 X t1 6 A23KQU22X02 4859610440...

Страница 17: ...16 PRINTED CIRCUIT BOARD MAIN...

Страница 18: ...17 PRINTED CIRCUIT BOARD POWER DEF...

Страница 19: ...RND3X8MFZN IS02 1K1A6801K ICMOTORDRIVER KIA6801K IS03 1AT24C08PC IC AT24C08 10PC IT01 1356VF6 ICPREAMP 356VF6 JP01 4859109950 JACKPINBOARD PH JB 9710A L102 58C5580019 COILCHOKE TRF 9225 0 55UH L110 58...

Страница 20: ...1JCA CCHIPCERA 50VCH200PFJ2012 CCY05 HCQK390JCA CCHIPCERA 50VCH39PFJ2012 CCY08 HCBK103KCA CCHIPCERA 50VX7R0 01MFK2012 CCY12 HCBK103KCA CCHIPCERA 50VX7R0 01MFK2012 LOC PARTCODE PARTNAME DESCRIPTION REM...

Страница 21: ...JCA RCHIP 1 102 7KOHMJ2012 LOC PARTCODE PARTNAME DESCRIPTION REMARK RCU09 HRFT912JCA RCHIP 1 109 1KOHMJ2012 RCU10 HRFT682JCA RCHIP 1 106 8KOHMJ2012 RCU11 HRFT272JCA RCHIP 1 102 7KOHMJ2012 RCU12 HRFT82...

Страница 22: ...MF 5X7 TP CU07 CEXF1H479A CELECTRO 50VRSM4 7MF4X7 CU16 CEXF1H479A CELECTRO 50VRSM4 7MF4X7 CU19 CEXF1C470V CELECTRO 16VRSS47MF 5X11 TP CU20 CEXF1C470A CELECTRO 16VRSM47MF 5X7 TP CU21 CMXM2A103J CMYLAR...

Страница 23: ...ATING J025 85801065GY WIRECOPPER AWG221 0 65TINCOATING J026 85801065GY WIRECOPPER AWG221 0 65TINCOATING J027 85801065GY WIRECOPPER AWG221 0 65TINCOATING J028 85801065GY WIRECOPPER AWG221 0 65TINCOATIN...

Страница 24: ...1065GY WIRECOPPER AWG221 0 65TINCOATING J133 85801065GY WIRECOPPER AWG221 0 65TINCOATING LOC PARTCODE PARTNAME DESCRIPTION REMARK J134 85801065GY WIRECOPPER AWG221 0 65TINCOATING J135 85801065GY WIREC...

Страница 25: ...RS50 RD AZ102J RCARBONFILM 1 61KOHMJ RS51 RD AZ102J RCARBONFILM 1 61KOHMJ LOC PARTCODE PARTNAME DESCRIPTION REMARK RS52 RD AZ472J RCARBONFILM 1 64 7KOHMJ RS53 RD AZ472J RCARBONFILM 1 64 7KOHMJ RS54 R...

Страница 26: ...TRO 250VRSS10MF 10X20 TP C407 CEXF1C102V CELECTRO 16VRSS1000MF 10X20 TP C410 CEXF1V471V CELECTRO 35VRSS470MF 10X20 TP LOC PARTCODE PARTNAME DESCRIPTION REMARK C453 CEXF2E479V CELECTRO 250VRSS4 7MF 10X...

Страница 27: ...1K CCERA 1KVB470PFK T C822 CEXF2A100V CELECTRO 100VRSS10MF 6 3X11 TP C825 CEXF1C101V CELECTRO 16VRSS100MF 6 3X11 TP C826 CEXF1H479A CELECTRO 50VRSM4 7MF4X7 C827 CEXF1C221V CELECTRO 16VRSS220MF 8X11 5...

Страница 28: ...21 0 65TINCOATING J031 85801065GY WIRECOPPER AWG221 0 65TINCOATING J032 85801065GY WIRECOPPER AWG221 0 65TINCOATING L401 85801065GY WIRECOPPER AWG221 0 65TINCOATING L802 5MC0000100 COILBEAD HC 3550 LO...

Страница 29: ...1 633KOHMJ R859 RD AZ303J RCARBONFILM 1 630KOHMJ R860 RD AZ472J RCARBONFILM 1 64 7KOHMJ R861 RD AZ472J RCARBONFILM 1 64 7KOHMJ R862 RD AZ151J RCARBONFILM 1 6150OHMJ R864 RD AZ393J RCARBONFILM 1 639KOH...

Страница 30: ...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 EXORout...

Страница 31: ...reen 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 Lo...

Страница 32: ...rom the 10 pin of LA76845 11 P6 6 CAPSTAN I LIMIT OUT Limit the current of CAPSTAN MOTOR Set L during PAUSE STILL 12 P6 5 SP LP EP Tape speed control SP L LP M EP H 13 P6 4 QV SYNC When special play Q...

Страница 33: ...tput 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 S...

Страница 34: ...P9 5 TV EXT Mode change control TV H LINE L 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 7...

Страница 35: ...nce 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 conde...

Страница 36: ...35 IC DESCRIPTION IC501 LA76845 IC VIDEO PROCESSOR Appendix H SYNC V SYNC...

Страница 37: ...36 IC DESCRIPTION ICY01 LA71076M IC VCR Y C AUDIO PROCESSOR Appendix...

Страница 38: ...0V VCR ON H 118V FROM U COM 31 ON OFF Check Voltage Check Voltage 118V 45V 10V 13V Check Voltage Check Voltage TUNER 33V H D TRANS 45V 118V R820 C821 D820 L824 Q821 C826 D821 D822 TO I501 34 OCP C822...

Страница 39: ...38 TROUBLESHOOTING GUIDE 1 2 DC NO POWER Appendix...

Страница 40: ...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 Z102 4 5M TRAP Check Waveform 35 36 38 39 Check the X TAL XS02 S01 37 34 Check Reset VC...

Страница 41: ...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 S01 37 34 Check Reset VCC d C602 Check Voltage Check AUDIO Signal 4 I601 TDA7267 Ch...

Страница 42: ...2 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 X...

Страница 43: ...DE 2 4 NO COLOR I501 LA76845 44 Check CVS waveform C527 18 R504 Check the voltage RGB Vcc 9V R OUT G OUT B OUT Check R G B signal 19 21 20 X501 3 58MHz Check the crystal 38 L502 Chroma DEF Vcc 43 Chec...

Страница 44: ...the crystal 38 L502 Chroma DEF Vcc 43 Check the voltage C508 C507 Check the voltage 2 5V V RAMP ALC filter 23 I301 LA78041 R301 1 5 Check vertical output signal Invert RAMP IN OUTPUT VERTICAL D Y Che...

Страница 45: ...ck 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...

Страница 46: ...2 7 REMOTE CONTROL DOES NOT OPERATE S01 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 Chec...

Страница 47: ...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 XS01 32KHz Check the crystal ICS01 TIMER SYSCON XS02 16MHz 35 36...

Страница 48: ...Hz 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 Pul...

Страница 49: ...35 36 38 39 37 34 RESET Vcc 5V j 98 99 Vcc 5V Vcc 5V Check the voltage 5V Video Envelope REC H Check the crystal 11 13 Check CTL signal 82 85 If PB RF no signal then change the ICY01 2HEAD DRUM 87 21...

Страница 50: ...aveform Check the voltage 5V VH SW Pulse REC H Check the crystal 11 1 3 Check CTL signal I501 CHROMA LA76845 42 3 5 If CVS no signal then change the ICY01 CVS 2 1 54 56 5 7 87 HA Vcc C Vcc CCD Vcc Y V...

Страница 51: ...Check the voltage 5V Check the crystal 1 1 Check CTL signal I501 CHROMA LA76845 42 3 5 If CVS no signal then change the ICY01 CVS 21 54 56 57 8 7 HA Vcc C Vcc CCD Vcc Y Vcc 1 2 1 1 72 71 16 MDATA MCLK...

Страница 52: ...Vcc 5V Vcc 5V Check the waveform Check the voltage 5V C ROT Pulse PB L Check the crystal 16 17 Check SCL SDA signal If REC Y C no signal then change the ICY01 2HEAD DRUM 21 54 56 57 87 HA Vcc C Vcc C...

Страница 53: ...16MHz 35 36 38 39 37 34 RESET Vcc 5V 98 99 Vcc 5V Vcc 5V Check the waveform Check the voltage 5V C ROT Pulse PB L Check the crystal 16 17 Check SCL SDA signal If REC Y C no signal then change the ICY0...

Страница 54: ...16MHz 35 36 38 39 37 34 RESET Vcc 5V 98 99 Vcc 5V Vcc 5V Check the voltage 5V PB L REC H Check the crystal 11 17 Check SCL SDA signal 2 87 75 A Vcc HA Vcc 12 26 AUDIO HEAD Invert REC H from ICS01 20 R...

Страница 55: ...Vcc 5V 9 8 9 9 Vcc 5V Vcc 5V Check the waveform Check the voltage 5V INPUT SELCT Check the crystal 5 5 Check CTL signal 3 5 AUDIO OUT 8 7 HA Vcc 1 2 11 72 7 1 MDATA MCLK Check MCL MDA signal 4 2 I501...

Страница 56: ......

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