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Zenith DVT654, Руководство по обслуживанию, Страница: 13 / 87

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- 2-7 -

3. TEST & DEBUG FLOW

TEST

NO

Replace power PCBA or

AC transformer.

YES

Switch on the Power PCBA

Repair or Replace Power PCBA

NO

Make sure the main PCBA don't

short on VCCs and switch it on.

YES

Check the regulators or related diodes.

NO

YES

Connect to PC RS232 Cable and
update the FLASH memory code.

Update FLASH

successfully?

A

YES

NO

1. Check 27MHz system clock.

2. Check system reset circuit.

3. Check FLASH R/W enable signal PRD,RWR.

4. Check RS232 SIGNALS.

5. Check FLASH Memory related circuit.

Check the AC Voltage

Power PCBA(120V)

Is the DC Voltage

outputs OK?

(5V,3.3V, 8V, 12V, -12V, 11.5V)

Is 3.3V and 1.8V DC

outputs normal on main

PCBA?

Содержание DVT654

Страница 1: ...C Product Year 2006 GENERAL ELECTRICAL EXPLODED VIEWS SPEAKER PART REPLACEMENT PARTS LIST 1 2 3 4 5 Published March 2006 by Technical Publications Zenith Electronics Corporation 201 James Record Road...

Страница 2: ...WAVEFORMS ON SYSTEM TEST AND DEBUGGING 2 13 WIRING DIAGRAM 2 25 BLOCK DIAGRAMS 2 26 AUDIO PART SCHEMATIC DIAGRAMS 2 31 DVD PART SCHEMATIC DIAGRAMS 2 47 PRINTED CIRCUIT DIAGRAMS 2 53 CIRCUIT VOLTAGE CH...

Страница 3: ...er be touched 4 Laser beams may damage the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5...

Страница 4: ...e replacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conduct...

Страница 5: ...arges sufficient to damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its p...

Страница 6: ...e sync RCA jack x 1 Pb Pr 0 7 V p p 75 ohms RCA jack x 2 TUNER FM Tuning Range 87 5 108 0 MHz or 65 0 74 0 MHz 87 5 108 0 MHz Intermediate Frequency 10 7 MHz Signal to Noise Ratio 60 dB Mono Frequency...

Страница 7: ...OWER SUPPLY CIRCUIT DOES INITIAL READ WORK DOES IT PLAY YES NO YES YES OK NO YES NO NO CHECK POWER SUPPLY CIRCUIT CHECK LASER CIRCUIT CHECK TRACKING SERVO CIRCUIT TURN POWER ON CHECK FOCUS CIRCUIT CHE...

Страница 8: ...is High Check if IC101 PIN 31 32 51 88 are high 5V Check if IC101 PIN96 is High Replace IC101 Does CD DVD appear at FLD Reconnect PN902 Refer to SMPS OK Refer to oscillator Circuit Check DVD Reset Wa...

Страница 9: ...2 3 3 FRONT CIRCUIT 1 2 PIN104 Pins PIN 27V PIN 6 18V PIN7 22V PIN 5V...

Страница 10: ...2 4 4 FRONT CIRCUIT 2 2 CHECK IF R029 R036 R040 R046 R051 OK REPLACE R029 R036 R040 R046 R051 Check if PN104 pins10 11 Waveform OK Check if the Remocon Waveform of the PN104 pin16...

Страница 11: ...LD Check Connector CN201 if is normally Check Connector CN202 Check Connector CN203 Check voltage each pin for PN902 Check Connector PN902 Check DVD SECTION Check SMPS board regulator 1 POWER CHECK FL...

Страница 12: ...y Close to Closed position NO SLED at Inner Side SLED Moves to Inner Positi on NO YES YES Reci eve OPEN CLOSE Key 1 Execute Pressed Key IR Key 2 System operation Routine Loop NO 1 Stop Playback Open T...

Страница 13: ...or related diodes NO YES Connect to PC RS232 Cable and update the FLASH memory code Update FLASH successfully A YES NO 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable...

Страница 14: ...damaged MT1389 VIDEO outputs properly Check the related circuit of MT1389 Have TV signal output Check the filtering and amp circuit of TV signal Check AV cable connection to TV set Does Tray move insi...

Страница 15: ...than 1 4V Check the related circuit of FMSO SL and SL output properly Check the amp circuit on motor driver Check the cable connection with MECHA Do not put in disc and tray close C Optical Lens has...

Страница 16: ...Laser turns on when reading disc NO NO YES NO YES YES NO LD01 or LD02 output properly Check the laser power circuit on MT1336 and connecting to power transistor Collector voltage of power transistor i...

Страница 17: ...on MT1389 and motor dirver Check the tracking control amp circuit on motor driver Check cable connection on pick up head Disc is play Check RFO RFLVL signal waveform NO NO YES YES YES Focus ON OK Pro...

Страница 18: ...nes on MT1389 NO YES Check the cable connection on Front pannel TEST END YES Normal Audio output when disc playback Audio PWM IC received correct data stream Check connection between MT1379 Audio PWM...

Страница 19: ...2 13 FIG 1 1 FIG 1 2 DVD DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389 main clock is at 27MHz X601 2 MT1389 reset is high active...

Страница 20: ...2 14 FIG 1 3 FIG 1 4 3 RS232 waveform during procedure Downloading 4 Flash R W enable signal during download Downloading...

Страница 21: ...2 15 FIG 2 1 FIG 3 1 2 SDRAM CLOCK 1 MT1389 main clock is at 27MHz X601 3 TRAY OPEN CLOSE SIGNAL...

Страница 22: ...2 16 FIG 4 1 FIG 5 1 4 SLED CONTROL RELATED SIGNAL NO DISC CONDITION 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION...

Страница 23: ...2 17 FIG 6 1 FIG 7 1 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION 7 DISC TYPE JUDGEMENT WAVEFORM...

Страница 24: ...2 18 FIG 7 2 DVD FIG 7 3 CD...

Страница 25: ...2 19 FIG 7 4 CD FIG 8 1 DVD 8 FOCUS ON WAVEFORM...

Страница 26: ...2 20 FIG 8 2 CD FIG 9 1 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION...

Страница 27: ...2 21 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD...

Страница 28: ...2 22 FIG 11 1 DVD FIG 12 1 11 MT1389 AUDIO OPTICAL AND COAXIAL INPUT SPDIF 12 MT1389 VIDEO OUTPUT WAVEFORM 1 100...

Страница 29: ...2 23 ADAT0 3 FIG 12 2 FIG 13 1 2 COMPOSITE VIDEO SIGNAL 13 MT1389 AUDIO OUTPUT TO PWM IC...

Страница 30: ...2 24 FIG 14 1 14 AUDIO OUTPUT FROM PWM IC...

Страница 31: ...2 25 WIRING DIAGRAM...

Страница 32: ...C SW F R R R L703 L702 L708 L710 L7 11 L712 LL70 5 LL70 6 JK7 01 SPEAKER TERMINAL 510_FAULT TH_WAR 510_PDN IC301 PS9829 8CH PWM MODULAT OR REG_3 3VA SL FL C SW FR SR X301 12 288MHz PS9829_CLK RESET PD...

Страница 33: ...CTIFIER SMOOTING BLOCK D927 C931 L925 C932 RECTIFIER SMOOTING BLOCK D91 C951 C952 RECTIFIER SMOOTING BLOCK R951 R952 PHOTO COUPLER PC912 ERROR AMP IC942 FEED BACK BLOCK R946 R947 R949 R950 R955 C943 R...

Страница 34: ...O DMSO TROPEN ADIN F F T T SL SL LOAD LOAD LD0 1 LDO 2 IOA MDI 1 ALPC V20 PICKSEL LIMIT TRIN TROUT TRCLOSE STBY V1P4 IC603 4M x 16bit SDRAM MA 0 11 DQM0 DQM1 WE CAS RAS CS BA0 BA1 SDCLK SDCKE DQ 0 15...

Страница 35: ...rface AUDIO Interface AUDIO MICOM IC603 SDRAM 64M DCLK WE CAS RAS CS DCKE MA 0 10 DQM0 DQM1 DQ 0 15 X601 27MHz SCL SDA Y2 Y Y3 Color Y4 Y Y5 Cb Y6 Cr ASPECT 16 9 ACLK ALRCK ABCK MUTE VSCK VSDA ASDTA 0...

Страница 36: ...LATOR IC 5 1CH IC701 Digital POWER IC IC702 Digital POWER IC IC303 IC704 Digital POWER IC CVBS COMPONENT Y Pb Pr SUPER VIDEO Y C Y Pb Pr Y C ACLK LRCK ADATA1 ADATA2 ADATA3 A V JACK MPEG FDATA 0 7 MPEG...

Страница 37: ...UDIO PART SCHEMATIC DIAGRAMS SMPS 1 SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T NOTES Warning NOTES Parts that are shaded are critical NOTES With respect to risk of fire or NOTES electri...

Страница 38: ...SMPS 2 SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T 2 33 2 34...

Страница 39: ...2 35 2 36 MICOM SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 40: ...2 37 2 38 I O SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 41: ...2 39 2 40 AMP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 42: ...2 41 2 42 FRONT SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 43: ...2 43 2 44 H PHONE SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 44: ...2 45 2 46 AV2 SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 45: ...2 47 2 48 DVD PART SCHEMATIC DIAGRAMS MPEG SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 46: ...2 49 2 50 DSP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 47: ...2 51 2 52 SERVO SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Страница 48: ...3 53 3 54 PRINTED CIRCUIT DIAGRAMS MAIN P C BOARD TOP SIDE...

Страница 49: ...3 55 3 56 MAIN P C BOARD BOTTOM SIDE...

Страница 50: ...2 57 2 58 FRONT P C BOARD TOP SIDE FRONT P C BOARD BOTTOM SIDE...

Страница 51: ...2 59 2 60 H PHONE P C BOARD TOP SIDE H PHONE P C BOARD BOTTOM SIDE AV JACK P C BOARD TOP SIDE AV JACK P C BOARD BOTTOM SIDE...

Страница 52: ...2 61 2 62 POWER P C BOARD NOTES Warning NOTES Parts that are shaded are critical NOTES With respect to risk of fire or NOTES electricial shock LOCATION GUIDE...

Страница 53: ...23 51 4 88 52 23 7 53 23 54 23 Volt V MODE PIN NO IC102 74HCT244 Volt V MODE PIN NO IC103 KIA7042 IC201 IP4504 IC301 PS9829 Volt V MODE PIN NO 10 3 28 11 0 12 0 13 2 44 14 0 15 0 16 0 17 0 18 0 19 1 6...

Страница 54: ...1 5 49 3 26 50 1 3 51 1 3 248 1 9 249 0 250 1 251 1 252 1 6 253 1 53 254 1 5 255 0 9 256 3 2 1 0 4 2 0 8 3 0 8 4 3 5 2 8 6 0 7 7 0 9 8 1 7 9 0 10 0 11 3 2 12 3 9 13 3 27 14 3 27 15 1 5 16 0 17 0 3 18...

Страница 55: ...0 463 463 463 463 463 463 266 260 261 261 267 264 468 452 452 292 279 280 452 274 468 265 300 263 252 253 255 261 NOTE Refer to SECTION 5 REPLACEMENT PARTS LIST in order to look for the part number of...

Страница 56: ...57 022 050 051 056 023 026 024 027 025 028 029 043 042 434 434 431 435 019 020 045 044 017 054 010 052 048 061 046 011 014 013 012 049 038 435 016 060 039 040 041 009 434 433 037 032 437 036 047 034 0...

Страница 57: ......

Страница 58: ...TERY 808 FILTER CIRC 826 PLUG ASS Y 1WAY YELLOW 811 803A 803B 803C OWNER S MANUAL BOX 801 802 REMOCON SHEET PACKING CASING PACKING CASING PACKING CASING PACKING CASING 900 803 804 812 PLUG ASS Y 2WAY...

Страница 59: ......

Страница 60: ...4 1 SECTION 4 SPEAKER PART 1 WOOFER SPEAKER SECTION MODEL LHS 75SGW 952 959 953 954 955 958 957 950 A900 951...

Страница 61: ...4 2 2 SPEAKER CENTER SECTION MODEL LHS 75SGC A700 750 751 753 756 754 758 759 756 755...

Страница 62: ...4 3 3 SPEAKER REAR FRONT SECTION MODEL LHS 75SGS A800 851 853 850 857 856 858 854 855 859...

Страница 63: ......

Страница 64: ...KE 900 6710CDAK01B REMOTE CONTROLLER DA1 66KEY OHSUNG LH E750 ZENIT CABLE 6850R GX10Z CABLE FLAT P 1 0 FFC UL2896 0 05X0 65 24 CABLE 6850R GZ10Y CABLE FLAT P 1 0 FFC UL2896 0 05X0 65 26 ALTERNATE 803A...

Страница 65: ...005 3390RZ0002C TRAY DECK MECHA CMR 0538 ASSY CARRI 006 3390RZ0002D TRAY DECK MECHA CMR 0538 ASSY CARRI 007 3390RZ0002E TRAY DECK MECHA CMR 0538 ASSY CARRI 008 3210RZM003A FRAME CMR 0538 FRAME LG MOL...

Страница 66: ...MECHANISM PARTS CMR 0538 COVER SCREW GSL20A260 432 6768RZCP02A DECK MECHANISM PARTS CRM 0538 MOTOR SCREW GSP14A250 433 6768RZCP03A DECK MECHANISM PARTS CMR 0538 PCB SCREW GSL15A2616 434 6768RZCP04A DE...

Страница 67: ...C201 0CE1074F638 CAPACITOR FIXED ELECTROLYTIC 100UF SRA SS 16V 20 FM5 TP 5 C205 0CE4764F638 CAPACITOR FIXED ELECTROLYTIC 47UF SRA SS 16V 20 FM5 TP 5 C206 0CE4764F638 CAPACITOR FIXED ELECTROLYTIC 47UF...

Страница 68: ...ECTROLYTIC 470UF SMS SG 10V 20 FL TP 5 C555 0CE4776D618 CAPACITOR FIXED ELECTROLYTIC 470UF SMS SG 10V 20 FL TP 5 C616 0CE4764F638 CAPACITOR FIXED ELECTROLYTIC 47UF SRA SS 16V 20 FM5 TP 5 C6A1 0CE4764F...

Страница 69: ...LARS KTC3198 TP KEC BL KTC181 Q905 0TR103009AF TRANSISTOR BIPOLARS KRA103M KRA2203 KEC TP TO92M SW101 556 219B SWITCH TACT THV10910G TACT DC 12 V 5 0 A V X101 6212AA2125K RESONATOR CRYSTAL HC 49S KONY...

Страница 70: ...50V 80 20 Y5V F 1608 C332 0CH1473K562 CAPACITOR FIXED CERAMIC TEMP C 47000PF 50V 10 X7R X 1608 R C333 0CH1102K562 CAPACITOR FIXED CERAMIC TEMP C 1000PF 50V 10 X7R X 1608 R T C334 0CH1104K942 CAPACITO...

Страница 71: ...P0 1608 R TP C543 0CH4101K412 CAPACITOR FIXED CERAMIC HIGH D 100PF 50V 5 NP0 1608 R TP C544 0CH4391K412 CAPACITOR FIXED CERAMIC HIGH D 390PF 50V 5 NP0 1608 R TP C545 0CH4391K412 CAPACITOR FIXED CERAMI...

Страница 72: ...08 R C667 0CH1104K942 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 50V 80 20 Y5V F 1608 C668 0CH1104K942 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 50V 80 20 Y5V F 1608 C669 0CH1104K942 CAPACITOR FIXED CERAMIC TEMP...

Страница 73: ...R X R TP C739 0CH1104K566 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 2012 50V 10 X7R X R TP C741 0CH1104K566 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 2012 50V 10 X7R X R TP C742 0CH1104K566 CAPACITOR FIXED CERA...

Страница 74: ...02091A IC MICRO CONTROLLER TMP88CU77FG 6CN6 TOSHIBA 100PI IC102 0ISTLFA033B IC STANDARD LOGIC 74VHCT244AMTCX FAIRCHILD 20P T IC102 0IPRP00714A IC PERIPHERALS SN74AHCT244 TEXAS INSTRUMENT ALTERNATE IC2...

Страница 75: ...00HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECH TP L704 6200HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECH TP L707 6200HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECH TP L709 6200HJC102A FILTER...

Страница 76: ...OHM 1 16 W 1608 5 00 D R153 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R154 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R157 0RH1002C622 RESISTOR METAL GL...

Страница 77: ...08 5 00 D R248 0RH2200C622 RESISTOR METAL GLAZED CHIP 220 OHM 1 16 W 1608 5 00 D R249 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R250 0RH1000C622 RESISTOR METAL GLAZED CHIP 100...

Страница 78: ...HM 1 16 W 1608 5 00 D R348 0RH3300C622 RESISTOR METAL GLAZED CHIP 330 OHM 1 16 W 1608 5 00 D R349 0RH6200C622 RESISTOR METAL GLAZED CHIP 620 OHM 1 16 W 1608 5 00 D R350 0RH0912C622 RESISTOR METAL GLAZ...

Страница 79: ...M 1 16 W 1608 5 00 D R543 0RH1502C622 RESISTOR METAL GLAZED CHIP 15K OHM 1 16 W 1608 5 00 D R544 0RH1502C622 RESISTOR METAL GLAZED CHIP 15K OHM 1 16 W 1608 5 00 D R545 0RH1002C622 RESISTOR METAL GLAZE...

Страница 80: ...1608 5 00 D R656 0RH1201C622 RESISTOR METAL GLAZED CHIP 1 2K OHM 1 16 W 1608 5 00 D R657 0RH1201C622 RESISTOR METAL GLAZED CHIP 1 2K OHM 1 16 W 1608 5 00 D R658 0RH1201C622 RESISTOR METAL GLAZED CHIP...

Страница 81: ...HM 1 10 W 2012 5 00 D R733 0RH0561D622 RESISTOR METAL GLAZED CHIP 5 6 OHM 1 10 W 2012 5 00 D R734 0RH0102C622 RESISTOR METAL GLAZED CHIP 10 OHM 1 16 W 1608 5 00 D R735 0RH0000D622 RESISTOR METAL GLAZE...

Страница 82: ...ON LTL87HTBK TP BLUE 50MCD LD005 0DLLT0359AA LED LITEON LTL87HTBK TP BLUE 50MCD PN001 6630R FB05Z CONNECTOR CIRC FFC FPC 00 6232 026 104 800 ELCO 26P 1 PN002 6630R FB05X CONNECTOR CIRC FFC FPC 00 6232...

Страница 83: ...W 5 TA26 R020 0RD8202F608 RESISTOR FIXED CARBON FILM 82K OHM 1 6 W 5 TA26 R021 0RD8202F608 RESISTOR FIXED CARBON FILM 82K OHM 1 6 W 5 TA26 R022 0RD8202F608 RESISTOR FIXED CARBON FILM 82K OHM 1 6 W 5 T...

Страница 84: ...RECTIFIERS UG4DL 5706E3 22 VISHAY BK DO20 D923 0DSTW00060A DIODE SWITCHING UG4D TIWAN SEMI BK DO201AD 200 ALTERNATE D924 0DRVH00030A DIODE RECTIFIERS SB360L 5704E3 22 VISHAY BK DO2 F901 0FS6301B51D F...

Страница 85: ...0 1UF M PILKO ALTERNATE CN902 6631R F039C CONNECTOR ASSEMBLY GIL G 14 GIL J 14 14P 150M M U D901 0DD010009CA DIODE RECTIFIERS EG01C TP SANKEN D902 0DR104009BA DIODE RECTIFIERS RL104F TP RECTRON 400V...

Страница 86: ...ON FILM 39K OHM 1 6 W 5 TA26 R941 0RD0562F608 RESISTOR FIXED CARBON FILM 56 OHM 1 6 W 5 TA26 R942 0RD2701F608 RESISTOR FIXED CARBON FILM 2 7K OHM 1 6 W 5 TA26 R943 0RD2701F608 RESISTOR FIXED CARBON FI...

Страница 87: ......

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