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
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