Hitachi-DVP588A-cd-sm 维修电路原理图.pdf

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1、SERVICE MANUALSERVICE MANUALDVD PLAYERDVD PLAYERSPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENTTKTKNo. 9304ENo. 9304E2003Digital Media Division, TokaiAprilDV-P588A(S)DV-P588A(S)DV-P588A(ME)DV-P588A(AU)DV-P588A(ME)DV-P588A(AU)RadioFans.CN 收音机爱 好者资料库CONTENTS1 CAUTIONS FOR SAFETY IN PERF

2、ORMING REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-11-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . 1-11-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . 1-21-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . . 1-21-2-2 Precautions during Servicing. . .

3、. . . . . . . . . . . . . 1-21-2-3 Safety Check after Servicing. . . . . . . . . . . . . . . . 1-31-3 STANDARD NOTES FOR SERVICING. . . . . . . . . . 1-41-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . . 1-41-3-2 Instructions for Connectors . . . . . . . . . . . . . . . . . 1-41-3

4、-3 How to Remove/Install Flat Pack-IC . . . . . . . . . . 1-41-3-4 Instructions for Handling Semi-conductors . . . . . 1-61-4 NOTES WHEN USING SERVICE MANUAL . . . . . . 1-72 GENERAL INFORMATION. . . . . . . . . . . . . . . . .2-12-1 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . .

5、2-12-2 COMPARISON OF MODELS . . . . . . . . . . . . . . . . . 2-22-3 OPERATING CONTROLS AND FUNCTIONS . . . . 2-43 MAINTENANCE AND INSPECTION. . . . . . . . . .3-13-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-13-2 FIRMWARE RENEWAL MODE. . . . . . . . . . . . . . . . 3-73-2-1 How

6、 to Update the Firmware Version . . . . . . . . . 3-73-2-2 How to Verify the Firmware Version . . . . . . . . . . 3-74 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . .4-14-1 CABINET DISASSEMBLY INSTRUCTIONS. . . . . . 4-14-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . .

7、. . 4-14-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . . 4-15 EXPLODED VIEW AND PARTS LIST . . . . . . . .5-15-1 EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . 5-15-2 REPLACEMENT PARTS LIST. . . . . . . . . . . . . . . . . 5-25-2-1 Mechanical Parts List . . . . .

8、. . . . . . . . . . . . . . . . 5-25-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . 5-3SCHEMATIC CIRCUIT BOARD AND BLOCK DIAGRAMS1 WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 22-

9、1 DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . . . 22-2 DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . . . 32-3 DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . . . 52-4 AV 1/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . 62-5 AV 2/3 Schematic Diagram . .

10、 . . . . . . . . . . . . . . . . . . . 72-6 AV 3/3 & Function Schematic Diagram . . . . . . . . . . . . 83 WAVEFORMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 CIRCUIT BOARD DIAGRAMS . . . . . . . . . . . . . . . . . . . 104-1 AV CBA Top View . . . . . . . . . . . . . . . .

11、. . . . . . . . . . . 104-2 AV CBA Bottom View. . . . . . . . . . . . . . . . . . . . . . . . . 114-3 Function CBA Top/Bottom View . . . . . . . . . . . . . . . . 125 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . 135-1 System Control/Servo Block Diagram . . . . . . . . . . . .

12、 135-2 Digital Signal Process Block Diagram . . . . . . . . . . . . 145-3 Video/Audio Block Diagram. . . . . . . . . . . . . . . . . . . . 155-4 Power Supply Block Diagram . . . . . . . . . . . . . . . . . . 166 SYSTEM CONTROL TIMING CHARTS . . . . . . . . . . . . 177 IC PIN FUNCTION DESCRIPTIONS .

13、. . . . . . . . . . . . . 188 LEAD IDENTIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 19RadioFans.CN 收音机爱 好者资料库1-1Drive Mecha AssemblyLaser Beam RadiationLaser PickupTurntable1-1 LASER BEAM SAFETY PRECAUTIONSThis DVD player uses a pickup that emits a laser beam.The laser beam is emitted fr

14、om the location shown in the figure. When checking the laser diode, be sure to keepyour eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laserbeam.Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may

15、 result inhazardous radiation exposure.Do not look directly at the laser beam comingfrom the pickup or allow it to strike againstyour skin.CAUTION FOR SAFETY IN PERFORMING REPAIR1CAUTION - VISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK DEFEATED.AVOID EXPOSURE TO BEAM.Location: Inside Top of DVD mec

16、hanism.1-21-2 IMPORTANT SAFETY PRECAUTIONS1-2-1 Product Safety NoticeSome electrical and mechanical parts have specialsafety-related characteristics which are often not evi-dent from visual inspection, nor can the protectionthey give necessarily be obtained by replacing themwith components rated for

17、 higher voltage, wattage,etc. Parts that have special safety characteristics areidentified by a ! on schematics and in parts lists. Useof a substitute replacement that does not have thesame safety characteristics as the recommendedreplacement part might create shock, fire, and/or otherhazards. The P

18、roducts Safety is under review contin-uously and new instructions are issued wheneverappropriate. Prior to shipment from the factory, ourproducts are carefully inspected to confirm with therecognized product safety and electrical codes of thecountries in which they are to be sold. However, inorder t

19、o maintain such compliance, it is equally impor-tant to implement the following precautions when a setis being serviced.1-2-2 Precautions during ServicingA. Parts identified by the ! symbol are critical forsafety. Replace only with part number specified.B. In addition to safety, other parts and asse

20、mbliesare specified for conformance with regulationsapplying to spurious radiation. These must also bereplaced only with specified replacements.Examples: RF converters, RF cables, noise block-ing capacitors, and noise blocking filters, etc.C. Use specified internal wiring. Note especially:1)Wires co

21、vered with PVC tubing2)Double insulated wires3)High voltage leadsD. Use specified insulating materials for hazardouslive parts. Note especially:1)Insulation tape2)PVC tubing 3)Spacers4)Insulators for transistorsE. When replacing AC primary side components(transformers, power cord, etc.), wrap ends o

22、fwires securely about the terminals before solder-ing.F. Observe that the wires do not contact heat produc-ing parts (heatsinks, oxide metal film resistors, fus-ible resistors, etc.).G. Check that replaced wires do not contact sharpedges or pointed parts.H. When a power cord has been replaced, check

23、 that5 - 6 kg of force in any direction will not loosen it.I.Also check areas surrounding repaired locations.J. Be careful that foreign objects (screws, solderdroplets, etc.) do not remain inside the set.K. Crimp type wire connectorThe power transformer uses crimp type connectorswhich connect the po

24、wer cord and the primary sideof the transformer. When replacing the transformer,follow these steps carefully and precisely to pre-vent shock hazards.Replacement procedure1)Remove the old connector by cutting the wires at apoint close to the connector.Important: Do not re-use a connector. (Discard it

25、.)2)Strip about 15 mm of the insulation from the endsof the wires. If the wires are stranded, twist thestrands to avoid frayed conductors.3)Align the lengths of the wires to be connected.Insert the wires fully into the connector.4)Use a crimping tool to crimp the metal sleeve at itscenter. Be sure t

26、o crimp fully to the complete clo-sure of the tool.L. When connecting or disconnecting the internal con-nectors, first, disconnect the AC plug from the ACoutlet.1-31-2-3 Safety Check after ServicingExamine the area surrounding the repaired location fordamage or deterioration. Observe that screws, pa

27、rts,and wires have been returned to their original posi-tions. Afterwards, do the following tests and confirmthe specified values to verify compliance with safetystandards.1. Clearance DistanceWhen replacing primary circuit components, confirmspecified clearance distance (d) and (d) between sol-dere

28、d terminals, and between terminals and surround-ing metallic parts. (See Fig. 1-2-1)Table 1-2-1: Ratings for selected areaNote: This table is unofficial and for reference only. Be sure to confirm the precise values.2. Leakage Current TestConfirm the specified (or lower) leakage currentbetween B (ear

29、th ground, power cord plug prongs)and externally exposed accessible parts (RF termi-nals, antenna terminals, video and audio input andoutput terminals, microphone jacks, earphone jacks,etc.) is lower than or equal to the specified value in thetable below. Measuring Method (Power ON) :Insert load Z b

30、etween B (earth ground, power cordplug prongs) and exposed accessible parts. Use anAC voltmeter to measure across the terminals of loadZ. See Fig. 1-2-2 and the following table.AC Line VoltageClearance Distance (d) (d)110 to 240 V (Auto) DV-P588A(S)/P588A(ME) ,240 V DV-P588A(AU) 3mm(d) 6mm(d) Chassi

31、s or Secondary ConductorddPrimary Circuit TerminalsAC Voltmeter(High Impedance)Exposed Accessible PartBEarth Ground Power Cord Plug ProngsZ1.5k0.15 FFig. 1-2-1Fig. 1-2-2Table 1-2-2: Leakage current ratings for selected areasNote: This table is unofficial and for reference only. Be sure to confirm th

32、e precise values.AC Line VoltageLoad ZLeakage Current (i)One side of power cord plug prongs (B) to:110 to 240 V (Auto) DV-P588A(S)/P588A(ME) ,240 V DV-P588A(AU) 2k RES. Connected in paralleli0.7mA AC Peaki2mA DCRF orAntenna terminals50k RES. Connected in paralleli0.7mA AC Peaki2mA DCA/V Input, Outpu

33、t1-41-3 STANDARD NOTES FOR SERVICING1-3-1 Circuit Board Indications1. The output pin of the 3 pin Regulator ICs is indi-cated as shown.2. For other ICs, pin 1 and every fifth pin are indicatedas shown.3. The 1st pin of every male connector is indicated asshown.1-3-2 Instructions for Connectors1. Whe

34、n you connect or disconnect the FFC (FlexibleFoil Connector) cable, be sure to first disconnectthe AC cord.2. FFC (Flexible Foil Connector) cable should beinserted parallel into the connector, not at an angle.1-3-3 How to Remove / Install FlatPack-IC1. RemovalWith Hot-Air Flat Pack-IC Desoldering Ma

35、chine:.(1) Prepare the hot-air flat pack-IC desolderingmachine, then apply hot air to the Flat Pack-IC(about 5 to 6 seconds). (Fig. 1-3-1)(2) Remove the flat pack-IC with tweezers while apply-ing the hot air.(3) Bottom of the flat pack-IC is fixed with glue to theCBA; when removing entire flat pack-

36、IC, first applysoldering iron to center of the flat pack-IC and heatup. Then remove (glue will be melted). (Fig. 1-3-6)(4) Release the flat pack-IC from the CBA using twee-zers. (Fig. 1-3-6)Caution:1. Do not supply hot air to the chip parts around theflat pack-IC for over 6 seconds because damage to

37、the chip parts may occur. Put masking tape aroundthe flat pack-IC to protect other parts from damage.(Fig. 1-3-2)2. The flat pack-IC on the CBA is affixed with glue, sobe careful not to break or damage the foil of eachpin or the solder lands under the IC when removingit.Top ViewOutInBottom ViewInput

38、510Pin 1Pin 1FFC CableConnectorCBA* Be careful to avoid a short circuit.Fig. 1-3-1Hot-airFlat Pack-ICDesolderingMachineCBAFlat Pack-ICTweezersMasking TapeFig. 1-3-21-5With Soldering Iron:(1)Using desoldering braid, remove the solder from allpins of the flat pack-IC. When you use solder fluxwhich is

39、applied to all pins of the flat pack-IC, youcan remove it easily. (Fig. 1-3-3)(2)Lift each lead of the flat pack-IC upward one byone, using a sharp pin or wire to which solder willnot adhere (iron wire). When heating the pins, usea fine tip soldering iron or a hot air desolderingmachine. (Fig. 1-3-4

40、)(3)Bottom of the flat pack-IC is fixed with glue to theCBA; when removing entire flat pack-IC, first applysoldering iron to center of the flat pack-IC and heatup. Then remove (glue will be melted). (Fig. 1-3-6)(4)Release the flat pack-IC from the CBA using twee-zers. (Fig. 1-3-6)With Iron Wire:(1)U

41、sing desoldering braid, remove the solder from allpins of the flat pack-IC. When you use solder fluxwhich is applied to all pins of the flat pack-IC, youcan remove it easily. (Fig. 1-3-3)(2)Affix the wire to a workbench or solid mountingpoint, as shown in Fig. 1-3-5.(3)While heating the pins using a

42、 fine tip solderingiron or hot air blower, pull up the wire as the soldermelts so as to lift the IC leads from the CBA contactpads as shown in Fig. 1-3-5.(4) Bottom of the flat pack-IC is fixed with glue to theCBA; when removing entire flat pack-IC, first applysoldering iron to center of the flat pa

43、ck-IC and heatup. Then remove (glue will be melted). (Fig. 1-3-6)(5) Release the flat pack-IC from the CBA using twee-zers. (Fig. 1-3-6)Note:When using a soldering iron, care must be takento ensure that the flat pack-IC is not being held byglue. When the flat pack-IC is removed from theCBA, handle i

44、t gently because it may be damagedif force is applied.Flat Pack-ICDesoldering BraidSoldering IronFig. 1-3-3Fine TipSoldering IronSharpPinFig. 1-3-4To Solid Mounting PointSoldering IronIron WireorHot Air BlowerFig. 1-3-5Fine TipSoldering IronCBAFlat Pack-ICTweezersFig. 1-3-61-62. Installation(1)Using

45、 desoldering braid, remove the solder fromthe foil of each pin of the flat pack-IC on the CBAso you can install a replacement flat pack-IC moreeasily.(2)The “I” mark on the flat pack-IC indicates pin 1.(See Fig. 1-3-7.) Be sure this mark matches the 1on the PCB when positioning for installation. The

46、npresolder the four corners of the flat pack-IC. (SeeFig. 1-3-8.)(3)Solder all pins of the flat pack-IC. Be sure that noneof the pins have solder bridges.1-3-4 Instructions for Handling Semi-conductorsElectrostatic breakdown of the semi-conductors mayoccur due to a potential difference caused by ele

47、ctro-static charge during unpacking or repair work.1. Ground for Human BodyBe sure to wear a grounding band (1M) that is prop-erly grounded to remove any static electricity that maybe charged on the body.2. Ground for Workbench(1) Be sure to place a conductive sheet or copper platewith proper ground

48、ing (1M) on the workbench orother surface, where the semi-conductors are to beplaced. Because the static electricity charge onclothing will not escape through the body ground-ing band, be careful to avoid contacting semi-con-ductors with your clothing.Example :Pin 1 of the Flat Pack-ICis indicated b

49、y a mark.Fig. 1-3-7PresolderCBAFlat Pack-ICFig. 1-3-8CBACBAGrounding BandConductive Sheet orCopper Plate1M1M1-7(Top View) (Bottom View)(Bottom View)Electrolytic Capacitor+Transistor or Digital TransistorNPN TransistorPNP TransistorNPN Digital TransistorPNP Digital Transistor(Top View)(Top View)E C B

50、E C BDigital TransistorCBA SymbolsSchematic Diagram SymbolsE C B(Top View)(Top View)E C BE C B Resistors ItemIndicationValueNo indication.K.kM.MPower capacitanceNo indication.1/4W,1/6W All capacitances other than theabove are indicated in schematicdiagrams. Capacitors ItemIndicationValueNo indicatio