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Zenith DVT316 Series Service Manual

Zenith dvd/cd receiver service manual
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  • Page 2: Table Of Contents

    CONTENTS SECTION 1. GENERAL • SERVICING PRECAUTIONS ....................... 1-2 • ESD PRECAUTIONS ........................1-4 • SPECIFICATIONS ........................1-5 • LOCATION OF CUSTOMER CONTROLS ................... 1-6 SECTION 2. AUDIO PART • BLOCK DIAGRAM ........................2-1 • SCHEMATIC DIAGRAMS ......................2-3 • WIRING DIAGRAM ........................2-15 •...

  • Page 3: Section 1. General

    SECTION 1. GENERAL PART ❏ SERVICING PRECAUTIONS NOTES REGARDING HANDLING OF THE PICK-UP 1. Notes for transport and storage 1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact. Storage in conductive bag Drop impact 2.
  • Page 4 NOTES REGARDING COMPACT DISC PLAYER REPAIRS 1. Preparations 1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care.

  • Page 5: Esd Precautions

    ❏ ESD PRECAUTIONS Electrostatically Sensitive Devices (ESD) Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

  • Page 6: Specifications

    ❏ SPECIFICATIONS - 1-5 -...

  • Page 7: Location Of Customer Controls

    ❏ LOCATION OF CUSTOMER CONTROLS FRONT PANEL DISPLAY WINDOW - 1-6 -...
  • Page 8 REAR PANEL - 1-7 -...
  • Page 9 AUDIO ELECTRICAL TROUBLESHOOTING GUIDE 1. 1. 1. 1. INSERT POWER CORD. TURN ON CHECK POWER PLUG THE RED LED? AND POWER SUPPLY CIRCUIT . TURN POWER ON. IS POWER ON? CHECK POWER SUPPLY CIRCUIT . DOES INITIAL CHECK LASER CIRCUIT . READ WORK? CHECK FOCUS CIRCUIT.
  • Page 10 2. AUDIO µ. COM CIRCUIT POWER ON Does Video1/2, TV Does CD/DVD AUDIO, FM 87.5 appear at FLT? appear at FLD? Does it appear Does LOADING DVD Error at appear at FLD? FLD? Check Does no Dise or Connector(PN903)if Reconnet it. Time appear at FLD? is normally.
  • Page 11 3. FRONT CIRCUIT (1/2) POWER ON CHECK IF TURN ON RECONNECT IT. THE PN101/PN102 THE GREEN LED? (REFER TO NOTICE *1). IS OK? CHECK IF THE IS DIGITRON REFER TO SMPS PART. FRONT POWER ON NORMALLY? IS OK(*2). CHECK IF ALL BUTTENS ARE OK.
  • Page 12 4. FRONT CIRCUIT (2/2) - 1-11 -...
  • Page 13 MEMO - 1-12 -...

  • Page 14: Troubleshooting Guide

    SECTION 3. DVD PART ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow - 3-1 -...
  • Page 15 2. Test & debug flow - 3-2 -...
  • Page 16 - 3-3 -...
  • Page 17 - 3-4 -...
  • Page 18 - 3-5 -...
  • Page 19 - 3-6 -...
  • Page 20 - 3-7 -...
  • Page 21 ❏ DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL 1) MT1379 main clock is at 27MHz(X501) 2) MT1336 reset is high active - 3-8 -...
  • Page 22 3) RS232 waveform during procedure(Downloading) 4) Flash R/W enable signal during download(Downloading) - 3-9 -...
  • Page 23 2. SDRAM CLOCK 1) MT1379 main clock is at 27MHz(X501) 3. TRAY OPEN/CLOSE SIGNAL 1) Tray open/close waveform - 3-10 -...
  • Page 24 2) Tray close waveform 3) Tray open waveform - 3-11 -...
  • Page 25 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) - 3-12 -...
  • Page 26 6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION) 7. DISC TYPE JUDGEMENT WAVEFORM - 3-13 -...
  • Page 27 - 3-14 -...
  • Page 28 8. FOCUS ON WAVEFORM - 3-15 -...
  • Page 29 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) - 3-16 -...
  • Page 30 10. TRACKING CONTROL RELATED SIGNAL(System checking) - 3-17 -...
  • Page 31 11. RF WAVEFORM 12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF) - 3-18 -...
  • Page 32 13. MT1379 VIDEO OUTPUT WAVEFORM 1) Full colorbar signal(CVBS) 2) Y - 3-19 -...
  • Page 33 3) C 14. AUDIO OUTPUT FORM AUDIO DAC 1) Audio related Signal - 3-20 -...
  • Page 34 SECTION 5. SPEAKER PART ❏ MODEL: LHS-D6530W MODEL : <A> LGEPS, <B> LGEAP, <C> LGEGF, <D> LGECB <E> ABANS, <F> BROTHERS, <G> LGEMC, <H> LGEBN RUN DATE : 16.JUNE.2003 LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKS 3720RMF060A PANEL,FRONT SPK LHS-D6530W MOLD SILVER SPR 3701RM0047A NET ASSEMBLY SPK LHS-D6530W NET ASSY...
  • Page 35 ❏ MODEL: LHS-D6530C A800 RUN DATE : 16.JUNE.2003 LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKS 3720RMF058A PANEL,FRONT SPK LHS-D6530CV MOLD SILVER SP 6400DBHX01A SPEAKER,TWEETER SN11AP06D BALHAE TWEETER(DOME) 6400WETC01A SPEAKER,WOOFER 08P60EHC1390J EAW WOOFER 8 OHM 3110RMP019A CASE LHS-D6530CV MOLD SILVER SPRAY 6871RU9272A PWB(PCB) ASSEMBLY,SUBSET(AUDIO LHS-D6530V/C/T TERMINAL + 2.2U 3610RM0001F...
  • Page 36 ❏ MODEL: LHS-D6530T A800 RUN DATE : 16.JUNE.2003 LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKS 3720RMF059A PANEL,FRONT SPK LHS-D6530S MOLD SILVER SPR 6400DBHX01A SPEAKER,TWEETER SN11AP06D BALHAE TWEETER(DOME) 6400WETC01B SPEAKER,WOOFER 08R60EHC3015 EAW FULL-RANGE(HI 3110RMP020A CASE LHS-D6530S MOLD SILVER SPRAY 6871RU9272A PWB(PCB) ASSEMBLY,SUBSET(AUDIO LHS-D6530V/C/T TERMINAL + 2.2U 353M050D SCREW...
  • Page 37 ❏ MODEL: LHS-D6530V A800 RUN DATE : 16.JUNE.2003 LOCA.NO. PART NO DESCRIPTION SPECIFICATION REMARKS 3720RMF057A PANEL,FRONT SPK KHS-D6530 MOLD SILVER SPRA 6400DBHX01A SPEAKER,TWEETER SN11AP06D BALHAE TWEETER(DOME) 6400WETC01A SPEAKER,WOOFER 08P60EHC1390J EAW WOOFER 8 OHM 3110RMP018A CASE LHS-D6530V MOLD SILVER SPRAY 6871RU9272A PWB(PCB) ASSEMBLY,SUBSET(AUDIO LHS-D6530V/C/T TERMINAL + 2.2U 353M050D...

  • Page 38: Section 2. Audio Part

    SECTION 2. AUDIO PART ❏ BLOCK DIAGRAM...

  • Page 39: Schematic Diagrams

    ❏ SHEMATIC DIAGRAMS • FRONT & POWER SCHEMATIC DIAGRAM...
  • Page 40 • MICOM SCHEMATIC DIAGRAM...
  • Page 41 • I/O SCHEMATIC DIAGRAM NOTE: Warning NOTE: Parts that are shaded are critical With respect 1. Shaded(I) parts are critical for safety.Replace only to risk of fire or electrical shock. with specified part number. 2. Voltages are DC-measured with a digital voltmefer during Play mode.
  • Page 42 • DAP SCHEMATIC DIAGRAM 2-10...
  • Page 43 • AMP SCHEMATIC DIAGRAM 2-11 2-12...
  • Page 44 • SMPS SCHEMATIC DIAGRAM NOTE: Warning Parts that are shaded are critical With respect to risk of fire or electrical shock. 2-13 2-14...

  • Page 45: Wiring Diagram

    ❏ WIRING DIAGRAM NOTE: Warning Parts that are shaded are critical With respect to risk of fire or electrical shock. 2-15 2-16...

  • Page 46: Voltage Sheet (Ic&Tr)

    ❏ VOLTAGE SHEET (IC&TR) 1.LH-D6530(MAIN) 4).IC203(74VHC244MTCX, BUFFER IC) 1).IC101(LC876748C-52K, MICOM) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) PIN No. Volt(V) ADATA1 2.15V 4.88V -31.V ADATA2 4.8V 3.94V -28.V LRCK ADATA0 1.36V 3.26V...
  • Page 47 H/Phone_L+_IN H/Phone_R_OUT 31.5V WOOFER-_OUT 25 3.18V 26.36V -11.8V 11.9V WOOFER+_OUT 17 WOOFER-_OUT 26 3.16V 31.42V 9).IC601(NJM2296M, VIDEO SWITCHING IC) WOOFER+_OUT 18 3.16V 31.42V PIN No. Volt(V) PIN No. Volt(V) 2.LH-D6530(SMPS) Video_OUT 9 1).IC901(KA5M0365R-YDTU, PWM IC) PIN No. Volt(V) Video2_IN Video_OUT 300V Video1_IN 0 ~ 6V...
  • Page 48 ❏ PRINTED CIRCUIT DIAGRAMS • MAIN P.C BOARD (SOLDER SIDE) 2-21 2-22...
  • Page 49 • MAIN P.C BOARD (COMPONENT SIDE) 2-23 2-24...
  • Page 50 • FRONT P.C. BOARD 2-25 2-26...
  • Page 51 • SMPS P.C. BOARD 2-27 2-28...

  • Page 52: Dvd Part Schematic Diagrams

    ❏ DVD PART SCHEMATIC DIAGRAMS • MPEG SCHEMATIC DIAGRAM 3-21 3-22...
  • Page 53 • SERVO SCHEMATIC DIAGRAM 3-23 3-24...
  • Page 54 • INTERFACE SCHEMATIC DIAGRAM 3-25 3-26...

  • Page 55: Voltage Sheet (Ic&Tr)

    ❏ VOLTAGE SHEET (IC&TR) 3-27 3-28...

  • Page 56: Printed Circuit Diagram

    ❏ PRINTED CIRCUIT DIAGRAM • DVD P.C. BOARD(SOLDER SIDE) 3-29 3-30...
  • Page 57 • DVD P.C. BOARD (COMPONENT SIDE) 3-31 3-32...

  • Page 58: Section 4. Exploded Views

    SECTION 4. EXPLODED VIEWS • CABINET AND MAIN FRAME SECTION NOTE) Refer to “SECTION 6 REPLACEMENT PARTS LIST” in order to look for the part number of each part. TUNER...
  • Page 59 • Deck Mechanism Exploded View LOCA.NO. PART NO DESCRIPTION SPECIFICATION 6721RJ0381A DECK ASSEMBLY,AUDIO DECK/MECHA DP-7A-HZ 4861R-0016D CLAMP ASSEMBLY DECK/MECHA DISC DP-7C(7A) -HZ 3041R-M018A BASE ASSEMBLY MAIN DP-7A-HZ 3041R-M016D BASE ASSEMBLY SLED DP-7C(7A) -HZ 4860R-0021A CLAMP UPPER DP7 4930R-0402A HOLDER CLAMP DP-7A 6850R-GK12A CABLE,FLAT P=1.0 FFC UL2896(0.05X0.65) 11...

  • Page 60: Section 6. Replacement Parts List

    SECTION 6. REPLACEMENT PARTS LIST NOTE: Warning Parts that are shaded are critical With respect to risk of fire or electrical shock. .Cabinet & Main Frame Section NSP : Non SVC Parts RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS...
  • Page 61 Electrical Section RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS INDIVIDUAL PARTS TUNER 6700FM0029B TUNER KST-MJ001MA0-66L(3GANG-USA-FM/ PWB ASSEMBLY , POWER (SMPS) 6871RP9248B PWB(PCB) ASSEMBLY,POWER(MULTI) LH-D6530 SMPS 220V NARROW & 11 BD901 0DRGS00360A DIODE,RECTIFIERS GBU6J GENERAL SEMICONDUCTOR BK BD901 0DRFC00181A DIODE,RECTIFIERS...
  • Page 62 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS D932 0DD133009AB DIODE,SWITCHING D933 0DD133009AB DIODE,SWITCHING D941 0DD010009AC DIODE EU01W(R-FORM) TP SANKEN D942 0DD540200CA DIODE 1N5402 BK LITEON DO-201AD 3W 1 D951 4921RCE016A HEAT SINK ASSEMBLY AL EX 40X30X17 (SMPS DIODE) F901 0FS5001B51D FUSE,SLOW BLOW...
  • Page 63 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS ZD911 0DZ470009AD DIODE,ZENER GDZJ4.7B TP GRANDE DO34 500MW ZD921 0DZ120009AG DIODE,ZENERS GDZJ12C GRANDE TP52 DO34 - 12V 0DRFC00191A DIODE,RECTIFIERS FFPF30U20STU FAIR CHILD ST TO2 0DRFC00171A DIODE,RECTIFIERS FFPF20U20STU FAIR CHILD ST TO2 PWB ASSEMBLY , MAIN 6871R-6530B PWB(PCB) ASSEMBLY,TOTAL...
  • Page 64 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C320 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C321 0CH1473K562 CAPACITOR,CHIP[CERAMIC M/L HD 47000PF 50V K X7R(X) 1608 R/TP C322 0CH1473K562 CAPACITOR,CHIP[CERAMIC M/L HD 47000PF 50V K X7R(X) 1608 R/TP C323 0CH1104K942...
  • Page 65 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C545 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C547 0CE2276F618 CAPACITOR,ELECTROLYTIC 220M SMS 16V M FM5 TP(5) C548 0CE1076F618 CAPACITOR,ELECTROLYTIC 100M SMS 16V M FM5 TP(5) C549 0CE1076F618 CAPACITOR,ELECTROLYTIC...
  • Page 66 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C738 0CH1104K566 CAPACITOR,FIXED CERAMIC(TEMP.C 0.1UF 2012 50V 10% X7R(X) R/TP C739 0CH1104K566 CAPACITOR,FIXED CERAMIC(TEMP.C 0.1UF 2012 50V 10% X7R(X) R/TP C745 0CK105EK94A CAPACITOR,FIXED CERAMIC(High d 1UF 3216 50V 80%,-20% R/TP F(Y C746 0CE106BK638 CAPACITOR,FIXED ELECTROLYTIC...
  • Page 67 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C975 0CE476CD638 CAPACITOR,FIXED ELECTROLYTIC 47UF SHL,SD 10V 20% TP 5 FM5 C981 0CE2256K618 CAPACITOR,FIXED ELECTROLYTIC 2.2UF SMS,SG 50V 20% FL TP 5 C982 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C987 0CK1030K945...
  • Page 68 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS L209 0RH0000D622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 10 W 2012 5.00% D L210 6200HJC102A FILTER(CIRC),EMC HB-1M2012-102JT CERATECH TP L300 6200HJC102A FILTER(CIRC),EMC HB-1M2012-102JT CERATECH TP L301 6200HJC102A FILTER(CIRC),EMC HB-1M2012-102JT CERATECH TP L302...
  • Page 69 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R125 0RH1001C622 RESISTOR,METAL GLAZED(CHIP) 1K OHM 1 / 16 W 1608 5.00% D R126 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R127 0RH0102C622 RESISTOR,METAL GLAZED(CHIP) 10 OHM 1 / 16 W 1608 5.00% D...
  • Page 70 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R312 0RH1000C622 RESISTOR,METAL GLAZED(CHIP) 100 OHM 1 / 16 W 1608 5.00% D R313 0RH1000C622 RESISTOR,METAL GLAZED(CHIP) 100 OHM 1 / 16 W 1608 5.00% D R314 0RH1000C622 RESISTOR,METAL GLAZED(CHIP) 100 OHM 1 / 16 W 1608 5.00% D...
  • Page 71 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R546 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R547 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R548 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D...
  • Page 72 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R745 0RD0472F609 RESISTOR,FIXED CARBON FILM 47 OHM 1/6 W 5% TA52 R746 0RD0472F609 RESISTOR,FIXED CARBON FILM 47 OHM 1/6 W 5% TA52 R747 0RH0561D622 RESISTOR,METAL GLAZED(CHIP) 5.6 OHM 1 / 10 W 2012 5.00% D R748 0RH0561D622 RESISTOR,METAL GLAZED(CHIP)
  • Page 73 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS Q002 0TR103009AF TRANSISTOR,BIPOLARS KRA103M(KRA2203) KEC TP TO92M Q003 0TR103009AE TRANSISTOR,BIPOLARS KRC103M(KRC1203) KEC TP TO92M R001 0RD1002F609 RESISTOR,FIXED CARBON FILM 10K OHM 1/6 W 5% TA52 R002 0RD1002F609 RESISTOR,FIXED CARBON FILM 10K OHM 1/6 W 5% TA52 R003...
  • Page 74 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C207 0CE4764F638 CAPACITOR,ELECTROLYTIC 47M SRA/SS 16V M FM5 TP(5) C208 0CE4764F638 CAPACITOR,ELECTROLYTIC 47M SRA/SS 16V M FM5 TP(5) C211 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C212 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD...
  • Page 75 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C514 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C515 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C516 0CH1225F944 CAPACITOR,FIXED CERAMIC(Temp.c 2.2UF 16V 80%,-20% Y5V(F) 3216 C517 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD...
  • Page 76 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS C5C8 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C5C9 0CE2264F638 CAPACITOR,ELECTROLYTIC 22M SRA 16V M FM5 TP(5) C5E0 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD 0.1UF 50V Z Y5V(F) 1508 R/TP C637 0CH1104K942 CAPACITOR,CHIP[CERAMIC M/L HD...
  • Page 77 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R235 0RH1002C622 RESISTOR,METAL GLAZED(CHIP) 10K OHM 1 / 16 W 1608 5.00% D R236 0RH1502C622 RESISTOR,METAL GLAZED(CHIP) 15K OHM 1 / 16 W 1608 5.00% D R237 0RH2702C622 RESISTOR,METAL GLAZED(CHIP) 27K OHM 1 / 16 W 1608 5.00% D...
  • Page 78 RUN DATE : 20.JUNE.2003 S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS R575 0RH0000C622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 16 W 1608 5.00% D R576 0RH0000C622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 16 W 1608 5.00% D R577 0RH0000C622 RESISTOR,METAL GLAZED(CHIP) 0 OHM 1 / 16 W 1608 5.00% D...

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