Hitachi-DVP588A-cd-sm维修电路原理图.pdf

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1、SERVICE MANUALSERVICE MANUAL DVD PLAYERDVD PLAYER SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT TKTKNo. 9304ENo. 9304E 2003Digital Media Division, TokaiApril DV-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 CONTENTS 1 CAUTIONS FOR SA

2、FETY IN PERFORMING REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 1-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . 1-1 1-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . 1-2 1-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . . 1-2 1-2-2 Precautions during

3、 Servicing. . . . . . . . . . . . . . . . 1-2 1-2-3 Safety Check after Servicing. . . . . . . . . . . . . . . . 1-3 1-3 STANDARD NOTES FOR SERVICING. . . . . . . . . . 1-4 1-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . . 1-4 1-3-2 Instructions for Connectors . . . . . . . . . .

4、. . . . . . . 1-4 1-3-3 How to Remove/Install Flat Pack-IC . . . . . . . . . . 1-4 1-3-4 Instructions for Handling Semi-conductors . . . . . 1-6 1-4 NOTES WHEN USING SERVICE MANUAL . . . . . . 1-7 2 GENERAL INFORMATION. . . . . . . . . . . . . . . . .2-1 2-1 SPECIFICATIONS. . . . . . . . . . . . . .

5、 . . . . . . . . . . . . 2-1 2-2 COMPARISON OF MODELS . . . . . . . . . . . . . . . . . 2-2 2-3 OPERATING CONTROLS AND FUNCTIONS . . . . 2-4 3 MAINTENANCE AND INSPECTION. . . . . . . . . .3-1 3-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 FIRMWARE RENEWAL MODE. . . . . . .

6、. . . . . . . . . 3-7 3-2-1 How to Update the Firmware Version . . . . . . . . . 3-7 3-2-2 How to Verify the Firmware Version . . . . . . . . . . 3-7 4 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-1 CABINET DISASSEMBLY INSTRUCTIONS. . . . . . 4-1 4-1-1 Disassembly Flowchart .

7、 . . . . . . . . . . . . . . . . . . . 4-1 4-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . . 4-1 5 EXPLODED VIEW AND PARTS LIST . . . . . . . .5-1 5-1 EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-2 REPLACEMENT PARTS LIST. . . . . . . . . . . . . . . . . 5-

8、2 5-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . 5-2 5-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . 5-3 SCHEMATIC CIRCUIT BOARD AND BLOCK DIAGRAMS 1 WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 SCHEMATIC DIAGRAMS. . . .

9、 . . . . . . . . . . . . . . . . . . . . 2 2-1 DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . . . 2 2-2 DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . . . 3 2-3 DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . . . 5 2-4 AV 1/3 Schematic Diagram . . . . . . . . . . . . . .

10、 . . . . . . . 6 2-5 AV 2/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . 7 2-6 AV 3/3 when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. 1-3-6) (4) Release the flat pack-IC from the CBA usin

11、g twee- zers. (Fig. 1-3-6) Caution: 1. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. 1-3-2) 2. The flat pack-IC on the CBA is affixed wi

12、th glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it. Top View OutIn Bottom View Input 5 10 Pin 1 Pin 1 FFC Cable Connector CBA * Be careful to avoid a short circuit. Fig. 1-3-1 Hot-air Flat Pack-IC Desoldering Machine CBA Flat Pack-IC

13、Tweezers Masking Tape Fig. 1-3-2 1-5 With Soldering Iron: (1)Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. 1-3-3) (2)Lift each lead of the flat pack-IC upward on

14、e by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. 1-3-4) (3)Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering i

15、ron to center of the flat pack-IC and heat up. 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)Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is ap

16、plied to all pins of the flat pack-IC, you can remove it easily. (Fig. 1-3-3) (2)Affix the wire to a workbench or solid mounting point, as shown in Fig. 1-3-5. (3)While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads

17、 from the CBA contact pads as shown in Fig. 1-3-5. (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. 1-3-6) (5) Release the flat pack-IC from

18、the CBA using twee- zers. (Fig. 1-3-6) Note: When using a soldering iron, care must be taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied. Flat Pack-IC Desoldering Braid Solder

19、ing Iron Fig. 1-3-3 Fine Tip Soldering Iron Sharp Pin Fig. 1-3-4 To Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig. 1-3-5 Fine Tip Soldering Iron CBA Flat Pack-IC Tweezers Fig. 1-3-6 1-6 2. Installation (1)Using desoldering braid, remove the solder from the foil of each pin of t

20、he flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily. (2)The “I” mark on the flat pack-IC indicates pin 1. (See Fig. 1-3-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. 1-

21、3-8.) (3)Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges. 1-3-4 Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1.

22、 Ground for Human Body Be sure to wear a grounding band (1M) that is prop- erly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench (1) Be sure to place a conductive sheet or copper plate with proper grounding (1M) on the workbench or other surface, whe

23、re the semi-conductors are to be placed. Because the static electricity charge on clothing 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-IC is indicated by a mark.Fig. 1-3-7 Presolder CBA Flat

24、Pack-IC Fig. 1-3-8 CBA CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M 1-7 (Top View) (Bottom View) (Bottom View) Electrolytic Capacitor + Transistor or Digital Transistor NPN Transistor PNP Transistor NPN Digital Transistor PNP Digital Transistor (Top View) (Top View) E C B E C B Digital

25、Transistor CBA Symbols Schematic Diagram Symbols E C B (Top View) (Top View) E C B E C B Resistors ItemIndication Value No indication. K.k M.M Power capacitance No indication.1/4W,1/6W All capacitances other than the above are indicated in schematic diagrams. Capacitors ItemIndication Value No indic

26、ation. F P.pF Dielectric strength No indication.50V All dielectric strengths other than 50V are indicated in schematic diagrams. Coils ItemIndication Value . m.mH H 1-4 NOTES WHEN USING SERVICE MANUAL The following shows the contents to be noted when using service manual: Standard Notes WARNING Many

27、 electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replace- ment components rated for higher voltage, wattage, etc. Replacement parts that have these spe

28、cial safety characteristics are identified in this manual and its supplements; electrical components having such fea- tures are identified by the mark ! in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of sub

29、stitute replacement parts that do not have the same safety characteristics as speci- fied in the parts list may create shock, fire, or other hazards. Capacitor Temperature Markings Capacitors and transistors are represented by the fol- lowing symbols. Notes: 1. Do not use the part number shown on th

30、ese draw- ings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared. 2. All voltages are DC voltages unless otherwise speci-fied. Values in schematic diagrams The values, dielectric strength ( power capacitance

31、) and tolerances of the resistors ( excluding variable resistors ) and capacitors are indicated in the sche- matic diagrams using abbreviations. Mark Capacity change rate Standard temperature Temperature range (B)10%20C-25+85C (F)+30 - 80%20C-25+85C (SR)15%20C-25+85C (Z)+30 - 80%20C-10+70C 1-8 LIST

32、OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001)

33、 is blown, first check to see that all components in the power supply circuit are not defec- tive before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. 3. Note: (1) Do not use the part number shown on the drawings for order

34、ing. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared. (2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list sect

35、ion of the service manual. 4. Wire Connectors (1) Prefix symbol CN means connector (can disconnect and reconnect). (2) Prefix symbol CL means wire-solder holes of the PCB (wire is soldered directly). 5. Voltage indications for PLAY mode on the schematics are as shown below: 6. How to read converged

36、lines 7. Test Point Information 231 5.0 (2.5) 5.0 The same voltage for both PLAY press and hold for 1.5 seconds for a reverse search 3. BB (PLAY) to start or resume disc playback 4. gg / G (FF/SKIP) goes to next chapter or track during playback; press and hold for 1.5 seconds for a forward search 5.

37、 C C (STOP) to stop playback 6. AA (OPEN/CLOSE) to open/close the disc tray 7. Disc tray 8. Display 2-3 OPERATING CONTROLS AND FUNCTIONS 2-5 +10 CLOSE 3 MODE 2 SEARCHOPEN/ 9 ZOOM DISPLAY 8 AUDIO 0 TOP MENU SETUP SKIP 56 1 A-B REPEAT REPEAT 7 CLEAR SUBTITLE MODE ANGLE RETURN MENU DISC NAVIGATION 4 SU

38、RROUND ENTER 3 4 5 6 8 9 10 11 13 14 2 28 27 24 25 23 22 21 20 17 16 19 18 26 7 12 15 1 1. SURROUND Press to activate the virtual sound. 2. y/I (POWER/STANDBY) to switch the player to ON or OFF (As to the indication of the Operate switch, “I” indicates ON and “y” indicates electrical power STANDBY)

39、3. A-B REPEAT Repeats playback of a selected section. 4. REPEAT Repeats playback of the current disc, title, chapter or track. 5. MODE to set up programmed or random playback (Audio CD) to set virtual surround during playback 6. ZOOM enlarge DVD and Video CD image 7. CLEAR 8. ANGLE select DVD camera

40、 angle 9. MENU to display the menu of the DVD disc 10. ENTER acknowledge menu selection 11. Arrow Buttons (ss BBppoo ) Move the cursor and determines its position. 12. RETURN to return previous or remove setup menu 13. SKIP HH goes to previous chapter or track during playback 14. CC (STOP) to stop p

41、layback 15. hh to view DVD picture in fast reverse motion 16. FF (PAUSE/STEP) Press to pause Disc playback. Press repeatedly to advance the DVD picture step by step (or one frame at a time). 17. gg to view DVD picture in fast forward motion 18. BB (PLAY) to start or resume disc playback 19. SKIP GG

42、goes to next chapter or track during playback 20. DISC NAVIGATION Press to display the first scenes of each chapter of the title being played. 21. SETUP Press to enter the setup mode. 22. SUBTITLE Press to select the desired subtitle language. 23. TOP MENU Press to call up the title menu. 24. DISPLA

43、Y Press to access or remove the display screen during DVD, Audio CD or Video CD playback. 25. AUDIO Press to select a desired audio language or sound mode. 26. Numerical Buttons Press to directly select a Title/Chapter(DVD)/Track (Audio CD/Video CD) for playback. 27. AA (OPEN/CLOSE) to open/close th

44、e disc tray 28. SEARCH MODE Press to access or remove the Search display, which allows you to go directly to a specific Title/Chapter/Track/Time/Marker. REMOTE CONTROL 3-1 MAINTENANCE AND INSPECTION3 FLOW CHART NO.1 The power cannot be turned on. FLOW CHART NO.2 The fuse blows out. After servicing,

45、replace the fuse. Is the fuse normal? Is normal state restored when once unplugged power cord is plugged again after several seconds? Is the EV+3.3V line voltage normal? Check each rectifying circuit of the secondary circuit and service it if defective. Check the presence that the primary component

46、is leaking or shorted and service it if defective. See FLOW CHART No.2 Check if there is any leak or short-circuiting on the primary circuit component, and service it if defective. (Q1001, Q1003, T1001, D1001, D1002, D1004, D1005, D1011, C1003, C1005) Check the presence that the rectifying diode or

47、circuit is shorted in each rectifying circuit of secondary side, and service it if defective. Yes Yes Yes No No No FLOW CHART NO.3 When the output voltage fluctuates. Yes No FLOW CHART NO.4 When buzz sound can be heard in the vicinity of power circuit. Check if there is any short-circuit on the rect

48、ifying diode and the circuit in each rectifying circuit of the secondary side,and service it if defective. (D1003, D1006, D1008, D1016, D1030, IC1002, Q1002, Q1004, Q1011, Q1050: DV-P588A(AU) only) Does the photo coupler circuit on the secondary side operate normally? Check IC1001, D1012, D1024 and their periphery, and service it if defective. Check IC1001, IC1006, D1015, D1048 and their periphery, and service it if defective. FLOW CHART NO.5 -FL is not outputted. Is -24V voltage supplied to the anode of D1003? Check D1003 and periphery circuit, an