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Sharp DV-740/T Service Manual

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TENTATIVE
1. IMPORTANT SAFEGUARDS AND PRECAUTIONS ........................................................................... 2
2. FEATURES ........................................................................................................................................ 3
3. SPECIFICATIONS .............................................................................................................................. 3
4. PART NAMES ................................................................................................................................... 4
5. REMOTE CONTROL UNIT ................................................................................................................. 6
6. EXTENSION CABLE USE POINT (FOUR PLACES) ........................................................................... 7
7. SERVICE (TROUBLE SHOOTING FLOW CHART) ............................................................................. 8
8. NORMAL WAVEFORM ................................................................................................................... 11
9. IC FUNCTION LIST ........................................................................................................................... 19
10. BLOCK CIRCUIT SCHEMATIC DIAGRAMS ..................................................................................... 30
11. MAINBOARD ................................................................................................................................... 50
12. DISPLAY/OPTION BOARD .............................................................................................................. 56
13. POWER BOARD ............................................................................................................................. 58
14. PWB COMPONENT LIST ................................................................................................................ 60
15. REPLACEMENT PARTS LIST/EXPLODED VIEWS ......................................................................... 64
16. PACKING OF THE SET ................................................................................................................... 65
17. LOADER SET ................................................................................................................................. 67
SERVICE MANUAL
DVD VIDEO PLAYER
MODEL
In the interests of user-safety (Required by safety regulations
in some countries) the set should be restored to its original
condition and only parts identical to those specified be used.
CONTENTS
SHARP CORPORATION
1
DV-740/X/W/T
S81Z3DV-740XX
DV-740/T
DV-740X/W
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  • Page 1: Table Of Contents

    DV-740/X/W/T TENTATIVE SERVICE MANUAL S81Z3DV-740XX DVD VIDEO PLAYER DV-740/T DV-740X/W MODEL In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified be used.

  • Page 2: Important Safeguards And Precautions

    DV-740/X/W/T 1. IMPORTANT SAFEGUARDS AND PRECAUTIONS Note: This player is classified as a CLASS 1 LASER product. This unit can be used only where the power The CLASS 1 LASER PRODUCT label is located on supply is AC 100V-240V, 50/60Hz. It cannot the rear cover.

  • Page 3: Features

    DV-740/X/W/T 2. FEATURES • Playback of DVD, VIDEO CD, and Audio CD • Dolby Digital* , DTS* , MPEG Audio digital out Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol ( ) are trademarks of Dolby Laboratories. "DTS"...

  • Page 4: Part Names

    DV-740/X/W/T 3-1. ACCESSORIES Accessories: Video/Audio(L/R) cable x 1, AAA (UM4) batteries x 2, Remote control unit x 1, Operation Manual x 1, 4. PART NAMES 4-1 Main Unit(Front) For details on the use of each control. OPERATE Switch Button SKIP Button Go to the previous chapter/track during playback with DVD/ Turn the unit’s power on and off.
  • Page 5 DV-740/X/W/T 4-3 Main Unit(Rear) 1. VIDEO OUT jack Connect a standard video cable here when connecting to a TV with a video input jack. 2. S-VIDEO OUT jack Connect an S-VIDEO cable here when connecting to a TV with an S-VIDEO input jack. This type of connection provides Superior picture quality.

  • Page 6: Remote Control Unit

    DV-740/X/W/T 5. REMOTE CONTROL UNIT 1 OPEN/CLOSE Button 2 SETUP Button 3 AUDIO Button 4 ANGLE Button 5 SUBTITLE Button 6 3D Surround Sound Button 7 MUTE Button 8 VOCAL Button 9 A - B Button 10 TITLE Button 11 Cursor Left Key 12 Volume Level Reducing Button 13 SLOW Button 14 STEP Button...

  • Page 7: Extension Cable Use Point (Four Places)

    DV-740/X/W/T 6. EXTENSION CABLE USE POINT EXTENSION CABLE LIST 141 9HLCP1614 -1- - - Loader to Main Board 40Pin 142 9HLCS1679 -1- - - Power Board to Loader 4Pin 143 9HLDP1199 -1W - - CN1-J3 Panel Board to Main Board 12Pin 144 9HLCP1613 -1 - - - JP7-J1 Power Board to Main Board 14Pin...

  • Page 8: Service (Trouble Shooting Flow Chart)

    DV-740/X/W/T 7. SERVICE TROUBLESHOOTING FLOW CHART Power troubleshooting No power Unplug AC power cord See flow chart F1 blown replug it a few seconds later Is the fuse good ? Replace fuse Is AT 5V voltage normal ? Check primary circuit Is AT -28V voltage normal ? Check D5,R16 Is AT 3.6V voltage normal ?
  • Page 9 DV-740/X/W/T Picture does not operate normally. Set the disc on the disc tray. Is the setup menu “TV OUTPUT” set Set it correct. correct? Are the video signals outputted to the pins Check other pin of of video encoder chip U11? U11.
  • Page 10 DV-740/X/W/T Sound does not operate normally. Set the disc on the disc tray. Is the setup menu “AUDIO OUTPUT” set Set it correct. correct? Are the digital signals inputted to the pins of audio D/A convert U12? Check U1. U12 PIN2 SDATA U12 PIN3 SCLK U12 PIN4 LRCK U12 PIN5 MCLK...

  • Page 11: Normal Waveform

    DV-740/X/W/T 8. NORMAL WAVEFORM...
  • Page 12 DV-740/X/W/T...
  • Page 13 DV-740/X/W/T...
  • Page 14 DV-740/X/W/T...
  • Page 15 DV-740/X/W/T...
  • Page 16 DV-740/X/W/T...
  • Page 17 DV-740/X/W/T...
  • Page 18 DV-740/X/W/T...

  • Page 19: Ic Function List

    DV-740/X/W/T 9. IC FUNCTION LIST 9 - 1. U1 ES4318 PINOUT DIAGRAM...
  • Page 20 DV-740/X/W/T U1 ES4318 PIN DESCRIPTION...
  • Page 21 DV-740/X/W/T U1 ES4318 SYSTEM BLOCK DIAGRAM Vide o NTS C/PAL E P R O M Encode r Audio Audio D V D d r i v e CODEC S pe a ke rs ES4318 Re m ote Control/ P a ne l 2 M B y t e Ke ypa d Inte rfa ce...
  • Page 22 DV-740/X/W/T 9 - 2. U2/U3 HY57V161610D PIN CONFIGURATIONS...
  • Page 23 DV-740/X/W/T U2/U3 HY57V161610D FUNCTIONAL BLOCK DIAGRAM...
  • Page 24 DV-740/X/W/T 9 - 3. U11 ADV7170 FUNCTIONAL BLOCK DIAGRAM ADV7170 PIN CONFIGURATIONS...
  • Page 25 DV-740/X/W/T U11 ADV7170 PIN FUNCTION DESCRIPTIONS PIN FUNCTION DESCRIPTIONS Input/ Mnemonic Output Function P15–P0 8-Bit 4:2:2 Multiplexed YCrCb Pixel Port (P7–P0) or 16-Bit YCrCb Pixel Port (P15–P0). P0 represents the LSB. CLOCK TTL Clock Input. Requires a stable 27 MHz reference Clock for standard operation. Alter- natively, a 24.52 MHz (NTSC) or 29.5 MHz (PAL) can be used for square pixel operation.
  • Page 26 DV-740/X/W/T 9 - 4. U4 MX29F040...
  • Page 27 DV-740/X/W/T...
  • Page 28 DV-740/X/W/T 9 - 5. U12 CS4340...
  • Page 29 DV-740/X/W/T...

  • Page 30: Block Circuit Schematic Diagrams

    DV-740/X/W/T 10. BLOCK CIRCUIT SCHEMATIC DIAGR A M S 10-1. MPEG BLOCK DIAGRAM...
  • Page 31 DV-740/X/W/T...
  • Page 32 DV-740/X/W/T 10-2. SYSTEM DIAGRAM...
  • Page 33 DV-740/X/W/T...
  • Page 34 DV-740/X/W/T 10-3. POWER SUPPLAY DIAGRAM...
  • Page 35 DV-740/X/W/T...
  • Page 36 DV-740/X/W/T 10-4. DVD PROCESSOR...
  • Page 37 DV-740/X/W/T...
  • Page 38 DV-740/X/W/T 10-5. DVD ATAPI INTERFACE...
  • Page 39 DV-740/X/W/T...
  • Page 40 DV-740/X/W/T 10-6. ROM.SDRAM I/O-MAP...
  • Page 41 DV-740/X/W/T...
  • Page 42 DV-740/X/W/T 10-7. TV ENCODER...
  • Page 43 DV-740/X/W/T...
  • Page 44 DV-740/X/W/T 10-8. AUDIO DIAGRAM...
  • Page 45 DV-740/X/W/T...
  • Page 46 DV-740/X/W/T 10-9. 6-CH/2-CH AUDIO ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...
  • Page 47 DV-740/X/W/T ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○...
  • Page 48 DV-740/X/W/T 10 -10. DISPLAY/OPTION DIAGRAM...
  • Page 49 DV-740/X/W/T...

  • Page 50: Mainboard

    DV-740/X/W/T 11. MAINBOARD 11 - 1. SILKSCREEN TOP...
  • Page 51 DV-740/X/W/T...
  • Page 52 DV-740/X/W/T 11 - 2. LAYER 1...
  • Page 53 DV-740/X/W/T...
  • Page 54 DV-740/X/W/T 11 - 3. LAYER 2...
  • Page 55 DV-740/X/W/T...

  • Page 56: Display/Option Board

    DV-740/X/W/T 12. DISPLAY/OPTION BOARD 12 - 1. COMPONENT SIDE...
  • Page 57 DV-740/X/W/T 12 - 2. SOLDER SIDE...

  • Page 58: Power Board

    DV-740/X/W/T 13. POWER SUPPLY PCB 13 - 1. COMPONENT SIDE A...
  • Page 59 DV-740/X/W/T 13 - 2. COMPONENT SIDE B...

  • Page 60: Pwb Component List

    DV-740/X/W/T 9HLACU1AG106M- 9HLACU1AG106M- E. CAP 10uF 10V E. CAP 10uF 10V 9HLACU1AG106M- E. CAP 10uF 10V 9HLACU1AG106M- 9HLACU1AG106M- E. CAP 10uF 10V E. CAP 10uF 10V 14. REPLACEMENT PARTS LIST/ 9HLCCN1HH221J- 9HLCCN1HH221J- C. CAP .CH 220pF 50V C. CAP .CH 220pF 50V 9HLCCN1HH221J- C.
  • Page 61 DV-740/X/W/T RUNTG1046-1 MAIN PWB UNIT(Continued) 9HLES4318F 9HLES4318F IC IC 9HLES4318F 9HLES4318F 9HLES4318F IC IC U2,3 U2,3 9HLM12L1616-1 9HLM12L1616-1 IC IC U2,3 U2,3 U2,3 9HLM12L1616-1 9HLM12L1616-1 9HLM12L1616-1 IC IC R101 R101 9HLCNVA—472J- 9HLCNVA—472J- C.RES CH 1/10W 4.7K C.RES CH 1/10W 4.7K R101 9HLCNVA—472J- C.RES CH 1/10W 4.7K...
  • Page 62 DV-740/X/W/T RUNTP1015-1 POWER PWB UNIT TRANSISTORS 9HL2SA1357 TRANSISTOR CAPACITORS 9HLTIP32C TRANSISTOR 9HL2SC1815 TRANSISTOR C001 9HLEBF7EH683MX METALIZED CAP 0.068uF 275V 9HL2SA1357 TRANSISTOR C002 9HLEBF7EH104MX METALIZED CAP 0.1uF 275V 9HLTIP32C TRANSISTOR C003,004 9HLFDU7BY471MX Y-CAP 470pF 400VAC 9HL2SC1815 TRANSISTOR C005 9HLACF2GG476M E.CAP 47uF 400V 9HL2SA562 TRANSISTOR C006...
  • Page 63 DV-740/X/W/T RUNTZ1038-1 CABINET PARTS DISPLAY PWB UNIT 9HLTG1046-1 9HLTG1046-1 Main PWB Unit Main PWB Unit 9HLTG1046-1 Main PWB Unit 9HLTG1046-1 9HLTG1046-1 Main PWB Unit Main PWB Unit CAPACITORS 9HLTZ1038-1 9HLTZ1038-1 9HLTZ1038-1 Operation PWB Unit Operation PWB Unit Operation PWB Unit 9HLTZ1038-1 9HLTZ1038-1 Operation PWB Unit...

  • Page 64: Replacement Parts List/Exploded Views

    DV-740/X/W/T CABINET EXPLODED VIEW...

  • Page 65: Packing Of The Set

    DV-740/X/W/T 16. PACKING OF THE SET...
  • Page 66 DV-740/X/W/T -- M E M O --...

  • Page 67: Loader Set

    DV-740/X/W/T LOADER LLOlLL...
  • Page 68 DV-740/X/W/T 17-1. U1 M5701 DVD-ROM Controller FUNCTION BLOCK DIAGRAIN PINOUT DIAGRAM...
  • Page 69 DV-740/X/W/T...
  • Page 70 DV-740/X/W/T...
  • Page 71 DV-740/X/W/T...
  • Page 72 DV-740/X/W/T...
  • Page 73 DV-740/X/W/T U2 SP3721A DVD-ROM Controller Chip PIN DESCRIPTION PIN DESPRIPTION TABLE:...
  • Page 74 DV-740/X/W/T...
  • Page 75 DV-740/X/W/T...
  • Page 76 DV-740/X/W/T P0.7:0 P2.7:0 P1.7:0 P3.7:0 Port 0 Port 2 Port 1 Port 3 Drivers Drivers Drivers Drivers Serial Port Timer Port Latch Port Latch Port Latch Interrupt Logic Data Bus Data Bus B Register Program Address Register ALU REG1 ALU REG2 Stack Pointer 64K bytes...
  • Page 77 DV-740/X/W/T Pin Name No. (PLCC) Type Description Power supply for internal operation, 5V input. Ground. P0.7-P0.0 36,37,38,39, Port 0 is 8 bits bi-directional I/O port with internal pull high. 40,41,42, 43 AD7-0 Multiplexed address/data bus. During the time when ALE is high, the LSB of a memory address is presented.
  • Page 78 DV-740/X/W/T 17-2. LOADER PWB 17-2-1. Component Side SIDE A...
  • Page 79 DV-740/X/W/T 17-2-2. Component Side SIDE B...
  • Page 80 DV-740/X/W/T 17-2-3. Wiring Side SIDE A...
  • Page 81 DV-740/X/W/T 17-2-4. Wiring Side SIDE B...
  • Page 82 DV-740/X/W/T 17-3. LOADER CIRCUIT SCHEMATIC DIAGRAM 17-3-1. DECODER...
  • Page 83 DV-740/X/W/T 17-3- 2. DRIVE 17-3-2. IDE...
  • Page 84 DV-740/X/W/T 17-3-3. INTEL 17-3-4. MEMORY...
  • Page 85 DV-740/X/W/T 17-3-5. POWER 17-3-6. PREAMP...
  • Page 86 DV-740/X/W/T 17- 4. PWB COMPONENT LIST SL-120H PWB COMPONENT LIST 9HLFHN1HY100J- CAP 10P 50V 0603 Y5 +-5% 9HLFHN1HY100J- CAP 10P 50V 0603 Y5 +-5% 9HLFHN1HY100J- CAP 10P 50V 0603 Y5 +-5% ELECTROLYTIC CAPACTIORS 9HLFHN1HY100J- CAP 10P 50V 0603 Y5 +-5% TC23 9HLATF1CG226M- CAP 22U 16V(DIP) SS TYPE...
  • Page 87 DV-740/X/W/T SL-120H PWB COMPONENT LIST (Continued) 9HLLN1021-1—- EMI SUPPERSSORS C5BSMB3*2.5*4 FB-1(1206) 9HLLN1021-1—- EMI SUPPERSSORS C5BSMB3*2.5*4 FB-1(1206) 9HLHNVG—000J- RES 0 0603 1/16W +-5% 9HLLN1021-1—- EMI SUPPERSSORS C5BSMB3*2.5*4 FB-1(1206) 9HLHNVG—104J- RES 100K 0603 1/16W +-5% 9HLLN1021-1—- EMI SUPPERSSORS C5BSMB3*2.5*4 FB-1(1206) 9HLHNVG—102J- RES 1K 0603 1/16W +-5% 9HLHNVG—103J- RES 10K 0603 1/16W +-5% CONNECTORS...
  • Page 88 DV-740/X/W/T 17-5. MECHANISM PARTS (DVD ROM) MECHANISM PARTS BSL-101H ( Serial No. -111H ) ( Serial No. -120H ) Ref. No. Part No. Part Name & Description 9HLSP0024-1F Loading Base 3-1a 9HLTV1010C1 Loading Motor 9HLYP0008-1F Motor Pulley 9HLYP0007-1F Pulley 9HLRH0069-1F Gear 9HLRH0070-1F Tray Gear...
  • Page 89 DV-740/X/W/T 17-6 MECHANISM EXPLODED VIEW (DVD ROM)
  • Page 90 DV-740/X/W/T COPYRIGHT C 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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