Zenith DV140 Service Manual Download Page 3

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SECTION 1

SUMMARY

CONTENTS

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

............. 1-3

SERVICING PRECAUTIONS

.................................................................................................. 1-4

• General Servicing Precautions

• Insulation Checking Prodedure

• Electrostatically Sensitive Devices

SPECIFICATIONS

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1-2

Summary of Contents for DV140

Page 1: ...DVD VIDEO PLAYER SERVICE MANUAL MODEL DV140 DV140PD MODEL DV140 DV140PD SERVICE MANUAL P NO 3829RHP053L FEBRUARY 2006 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL...

Page 2: ...CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST...

Page 3: ...RY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SPECIFI...

Page 4: ...YS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERA TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC TURE TUBE OR HIGH VOLTAGE...

Page 5: ...pan els Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called...

Page 6: ...OMPONENT VIDEO OUT Y 1 0 V p p 75 negative sync RCA jack x 1 Pb Pr 0 7 V p p 75 RCA jack x 2 AUDIO OUT 2 0 Vrms 1 KHz 0 dB 600 RCA jack L R x 1 DIGITAL OUT COAXIAL 0 5 V p p 75 RCA jack x 1 SYSTEM Las...

Page 7: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Deck Mechanism Section DP 9 2 3 3 Packing Accessory Section 2 4...

Page 8: ...2 2 EXPLODED VIEWS 1 Cabinet and Main Frame Section 463 A00 283 463 463 250 463 463 A48 5 1CH Model ONLY A47 A46 463 465 A44 260 261 280 A43 A42 A49 452 452 261 467 320 300 A 5 4 3 2 1 B C D...

Page 9: ...2 Deck Mechanism Section DP 9 2 3 A00 439 014 018 001 002 003 A01 A02 020 013 017 012 435 015 019 026 A03 036 021 430 439 035 025 024 010 431 435 012A 035A 012A 015A 015B 432 030 016 440 012...

Page 10: ...TTERY 808 AC ADAPTOR 823 PACKING SHEET 804 PACKING OPTIONAL PARTS 803 806 820 OWNER S MANUAL RF CABLE 810 CABLE SET ASS Y 801 REMOCON 900 BOX CARTON 802 PACKING 803 811 812 PLUG ASS Y 1WAY YELLOW PLUG...

Page 11: ...SPINDLE CONTROL WAVEFORM NO DISC CONDITION 3 17 10 TRACKING CONTROL RELATED SIGNAL System checking 3 18 11 MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF 3 19 12 MT1389D VIDEO OUTPUT WAVEFORM 3 19 13...

Page 12: ...working Is 3 4V present at emitter of Q121 Replace Q121 Replace IC101 Is there a DC voltage at Cathode of D105 or D107 Check FR101 No 5V Is 3 4VA section working Replace Q126 Is 5 6V present at colle...

Page 13: ...ISC Show LOGO Tray Closed Tray Close to Closed position SLED at Inner Side SLED Moves to Inner Position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure Recieve OPEN CL...

Page 14: ...YES Is 3 3V and 1 8V DC outputs normal on main PCBA YES Connect to PC RS232 Cable and update the FLASH memory code YES Update FLASH successfully YES A Replace power PCBA or AC transformer NO Repair or...

Page 15: ...AM MT1389D and the SDRAM is damaged NO MT1389D VIDEO outputs properly Check the related circuit of MT1389D NO Have TV signal output Check AV cable connection to TV set Normal TROUT TRIN signals Check...

Page 16: ...heck the connection line of STBY signal NO Is FMSO DC Level higher than 1 4V Check the related circuit of FMSO NO SL and SL output properly YES Check the amp circuit on motor driver Check FOSO connect...

Page 17: ...nsistor is OK Check the related circuit on laser power transistor NO Check cable connection between transistor ouput and pick up head YES YES YES Check the related circuit on MT1389D RFL signal Check...

Page 18: ...eck the FOSO connec tion on MT1389D and motor driver NO Check FOSO signal on MT1389D YES YES Check the TRSO connection on MT1389D and motor dirver NO Check the tracking control amp circuit on motor dr...

Page 19: ...END NO NO YES YES YES YES Check connection between MT1389D Audio DAC NO Normal Audio DAC out YES Check the related circuit of Audio DAC NO Check Audio filter amplify mute circuit Communications betwe...

Page 20: ...AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389D main clock is at 27MHz X501 FIG 1 1 1 0V 27MHz 2 MT1389D reset is low active FIG 1 2 Reset Time 3 3VA P...

Page 21: ...3 11 3 RS232 waveform during procedure Downloading FIG 1 3 TXD RXD 4 Flash R W enable signal during download Downloading FIG 1 4 PRD PWR...

Page 22: ...3 12 2 SDRAM CLOCK FIG 2 1 3 TRAY OPEN CLOSE SIGNAL FIG 3 1 DCLK 128MHz Vp p 2 2 Vmax 2 7V TRIN TROUT TRCLOSE TROPEN...

Page 23: ...L RELATED SIGNAL NO DISC CONDITION FIG 4 1 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION FIG 5 1 FOSO 1 5V 1 4V 1 3V F 3 2V 2 7V 2 2V F 3 2V 2 7V 2 2V FMSO 1 9V 1 4V 1 1V STBY 3 3V SL 4 2V 2 8V 1 2V...

Page 24: ...3 14 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION FIG 6 1 7 DISC TYPE JUDGEMENT WAVEFORM FIG 7 1 DVD DCLK 128MHz Vp p 2 2 Vmax 2 7V F FE RFL MDI1 0V 180mV LD01 3 3V 2 3V LD02 3 3V 2 3V...

Page 25: ...3 15 FIG 7 2 DVD FIG 7 3 CD F F FE FE RFL RFL...

Page 26: ...3 16 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO F F F FE RFL...

Page 27: ...3 17 FIG 8 2 CD 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION FIG 9 1 FOSO F DMSO 1 4V 1 8V SP 3 6V 2 4V SP 3 6V 4 8V FE F...

Page 28: ...3 18 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD TE TRSO T T TE TRSO T T...

Page 29: ...3 19 11 MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF FIG 11 1 12 MT1389D VIDEO OUTPUT WAVEFORM 1 100 FIG 12 1 TE TRSO T T...

Page 30: ...3 20 2 COMPOSITE VIDEO SIGNAL FIG 13 2 13 AUDIO OUTPUT FROM AUDIO DAC FIG 13 1...

Page 31: ...SPE SLED FEEDING MOTOR SL M VD33D V33A VD18A VD33A 3V3M 5V MIC R L VIDEO BUFFER RS232_TXD MIC_DECT IECDAOUT COAXIAL SPDI D2_T 1 3 SCART_16 9 RGB_SEL LD01 LD01 V20 5 6VA LIMIT TRIN TROUT ROMDATA 0 7 5V...

Page 32: ...MPS Block Diagram 8V 3 2V FILTER SWITCHING IC TRANS FEED B 3 4VA RECTIFIER 5 6V RECTIFIER 9 5V LPF RECTIFIER 14V LPF 12V PWR CTL 5V 5 6V M 5 6VA RECTIFIER 3 4V LPF AC100 240V RECTIFIER REG T W WITH 13...

Page 33: ...P FOSO TRSO FMSO DMSO TROPEN ADIN F F T T SL SL LOAD LOAD 27MHz X TAL LD0 1 LDO 2 IOA MDI 1 AL PC V20 PICKSEL LIMIT TRIN TROUT TRCLOSE STBY V1P4 IC503 1M x 16bit SDRAM MA 0 11 DQM0 DQM1 WE CAS RAS CS...

Page 34: ...araoke IC509 OP Amp VIDEO Interface AUDIO Interface LED DRIVE IC IC503 SDRAM 16M DCLK WE CAS RAS CS DCKE MA 0 10 DQM0 DQM1 DQ 0 15 X501 27MHz AMDAT ACLK ABCK ALRCK KARAOKE BOARD SCL SDA Y2 Y Y3 Color...

Page 35: ...F Buffer IC302 OP Amp LPF Buffer IC303 OP Amp LPF Buffer IC304 OP Amp LPF Buffer CVBS COMPONENT R G B Y Pb Pr SUPER VIDEO Y C R G B Y Pb Pr Y C DAC RESET ACLK SCL SDA ADATA1 ADATA2 ADATA3 A V JACK MPE...

Page 36: ...TION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED NOTE 1 Shaded parts are critical for safety Replace only with spec...

Page 37: ...3 28 3 29 2 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 38: ...3 30 3 31 A B C D E F G H I J K L M N O P Q R S T 3 SYSTEM CIRCUIT DIAGRAM...

Page 39: ...3 32 3 33 4 DRIVER CIRCUIT DIAGRAM CD DVD LD will not on A B C D E F G H I J K L M N O P Q R S T...

Page 40: ...3 34 3 35 5 TIMER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 41: ...0 173 1 8 1 8 174 3 33 3 3 175 0 0 176 2 73 2 73 177 0 0 178 3 32 3 32 179 2 75 0 180 0 0 181 0 0 182 3 3 3 3 183 0 0 184 0 0 185 0 0 186 0 0 187 0 0 188 0 0 189 3 3 3 3 190 1 24 1 24 STOP PLAY MODE P...

Page 42: ...3 38 3 39 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...

Page 43: ...L ONLY 4 TOOL ONLY TOP VIEW BOTTOM VIEW 6 TOOL ONLY LOCATION GUIDE 6 TOOL ONLY TOP VIEW LOCATION GUIDE BOTTOM VIEW 7 TOOL ONLY 7 TOOL ONLY TOP VIEW BOTTOM VIEW LOCATION GUIDE 3 TOOL ONLY LOCATION GUID...

Page 44: ...3 42 3 43 4 SMPS P C BOARD 360mm ONLY LOCATION GUIDE 430mm ONLY...

Page 45: ......

Page 46: ...ASSEMBLY GIL S ELCO 8283 ST 2P 180M M U DIG901 6301R2U017A LED ASSEMBLY TOS 2604AG B4 OASIS UNIVERSAL RC901 6712R1238HA REMOTE CONTROLLER RECEIVER AT138ARF1 OPTO 346HF6N2 B 38K SW902 6600R000028 SWITC...

Page 47: ...CITOR FIXED ELECTROLYTIC 4 7UF SRA SS 50V 20 FM5 TP 5 C154 0CE4754K638 CAPACITOR FIXED ELECTROLYTIC 4 7UF SRA SS 50V 20 FM5 TP 5 C155 0CE1076F638 CAPACITOR FIXED ELECTROLYTIC 100UF SMS SG 16V 20 FM5 T...

Page 48: ...R123 0RD4702F608 RESISTOR FIXED CARBON FILM 47K OHM 1 6 W 5 TA26 R124 0RD3900F608 RESISTOR FIXED CARBON FILM 390 OHM 1 6 W 5 TA26 R125 0RD3301F608 RESISTOR FIXED CARBON FILM 3 3K OHM 1 6 W 5 TA26 R12...

Page 49: ...FZB 3CR BK SUB PWB PCB ASSEMBLY A46 6885R 9325L SUB PWB PCB ASSEMBLY DV140PD NA4MLL 4D M 59 Y 01 IC502A 6957R 818AX PROGRAM LV10100003C MID MTK 1389D 06 C202 0CE2274C638 CAPACITOR FIXED ELECTROLYTIC 2...

Page 50: ...AZ7029R AAC TO 92 ST 2 9V RESE ALTERNATE JK601 6612J00044B JACK RCA RCA DIN 200 YUQIU JK601 6612J00044H JACK RCA ATT 10dB YUQIU RCA DIN 200B ALTERNATE L201 0LR0102J0N5 INDUCTOR RADIAL LEAD 10UH 5 TP 3...

Page 51: ...20 Y5V F 1608 C536 0CH4221K412 CAPACITOR FIXED CERAMIC HIGH D 220PF 50V 5 NP0 1608 R TP C537 0CH4221K412 CAPACITOR FIXED CERAMIC HIGH D 220PF 50V 5 NP0 1608 R TP C538 0CH1104K942 CAPACITOR FIXED CERA...

Page 52: ...CT0 SOP8 TP EEPROM IC504 0IMMRSE002A IC MEMORIES S 24CC02A J8T1G SEIKO 8PIN SOP ALTERNATE IC601 0ILNRA0001A IC LINEAR AZ4580MTR E1 AAC 8PIN SOIC REE IC601 0ILNRUC001A IC LINEAR MC4580 UTC 8PIN SOP R T...

Page 53: ...TAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R225 0RH1502C422 RESISTOR METAL GLAZED CHIP 15K OHM 1 16 W 1608 1 00 D R226 0RH2702C422 RESISTOR METAL GLAZED CHIP 27K OHM 1 16 W 1608 1 00 D R227 0RH1202C62...

Page 54: ...2 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 1 00 D R618 0RH0752C422 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 1 00 D R619 0RH0752C422 RESISTOR METAL GLAZED CHIP 75 OHM 1 16 W 1608 1 00 D R626...

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