Hitachi-DVP745U-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 TKNo. 0401ETKNo. 0401E 2004Digital Media Division, TokaiFebruary DV-P745UDV-P745U DV-P745U(C)DV-P745U(C) DO NOT RESELL OR DIVERT IMPROPERLY.DO NOT RESELL OR DIVERT IMPROPERLY. RadioFans.C

2、N 收音机爱 好者资料库 CONTENTS 1 CAUTIONS FOR SAFETY 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 . . . . . . . . . . . . . . . .

3、 . . . . . 1-2 1-2-2 Precautions during 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 Instructio

4、ns for Connectors . . . . . . . . . . . . . . . . . 1-4 1-3-3 Pb (PbF) Free Solder . . . . . . . . . . . . . . . . . . . . . 1-4 1-3-4 How to Remove/Install Flat Pack-IC . . . . . . . . . . 1-4 1-3-5 Instructions for Handling Semi-conductors . . . . . 1-7 2 GENERAL INFORMATION . . . . . . . . . . .

5、. . . . . .2-1 2-1 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-2 COMPARISON OF MODELS. . . . . . . . . . . . . . . . . . 2-2 2-3 OPERATING CONTROLS AND FUNCTIONS. . . . . 2-4 2-4 COMPARISON OF MAIN CONTROL ICS . . . . . . . . 2-6 2-5 LIST OF ABBREVIATIONS AND TERMS FOR D

6、VD PLAYER . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 3 MAINTENANCE AND INSPECTION. . . . . . . . . .3-1 3-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-1 3-2 FIRMWARE RENEWAL MODE. . . . . . . . . . . . . . . . 3-7 3-2-1 How to Update the Firmware Version . . . . . . .

7、. . 3-7 3-2-2 How to Verify the Firmware Version . . . . . . . . . . 3-8 4 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4-1 CABINET DISASSEMBLY INSTRUCTIONS . . . . . . 4-1 4-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . 4-1 4-1-2 Disassembly Method. . . . .

8、 . . . . . . . . . . . . . . . . . 4-1 5 EXPLODED VIEW AND PARTS LIST. . . . . . . . .5-1 5-1 EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-2 REPLACEMENT PARTS LIST. . . . . . . . . . . . . . . . . 5-2 5-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . 5-2

9、 5-2-2 Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . 5-3 SCHEMATIC AND BLOCK DIAGRAMS/CBAS 1 SCHEMATIC DIAGRAMS/CBAS AND TEST POINTS . 1 2 WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . .

10、. . 4 3-1 DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . . . 4 3-2 DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . . . 5 3-3 DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . . . 7 3-4 AV 1/3 Schematic Diagram . . . . . . . . . . . . . . . . . . . . . 8 3-5 AV 2/3 Schematic

11、 Diagram . . . . . . . . . . . . . . . . . . . . . 9 3-6 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. S-1-6) (1) Release the flat pack-IC from the CBA using twee- zers. (Fig. S-1-6) Caution: 1

12、. The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2. 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

13、 around the flat pack-IC to protect other parts from damage. (Fig. S-1-2) Top View OutIn Bottom View Input 5 10 Pin 1 Pin 1 FFC Cable Connector CBA * Be careful to avoid a short circuit. Fig. S-1-1 1-5 3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil

14、 of each pin or the solder lands under the IC when removing it. 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. S-1-3) (2) Lift each lead

15、of the flat pack-IC upward one 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. S-1-4) (3) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pa

16、ck-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (4) Release the flat pack-IC from the CBA using twee- zers. (Fig. S-1-6) With Iron Wire: (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When

17、 you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3) (2) Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5. (3) While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solde

18、r melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5 Fig. S-1-2 Hot-air Flat Pack-IC Desoldering Machine CBA Flat Pack-IC Tweezers Masking Tape Fig. S-1-3 Flat Pack-IC Desoldering Braid Soldering Iron Fig. S-1-4 Fine Tip Soldering Iron Sharp Pin 1-6 (4)Bottom of the fl

19、at 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. S-1-6) (5)Release the flat pack-IC from the CBA using twee- zers. (Fig. S-1-6) Note: When using a soldering iron

20、, 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. 2. Installation (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC

21、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. S-1-7.) 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. S-1-8.) (3) Solde

22、r all pins of the flat pack-IC. Be sure that none of the pins have solder bridges. Fig. S-1-5 To Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig. S-1-6 Fine Tip Soldering Iron CBA Flat Pack-IC Tweezers Fig. S-1-7 Example : Pin 1 of the Flat Pack-IC is indicated by a mark. Fig. S-

23、1-8 Presolder CBA Flat Pack-IC 1-7 1-3-5 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. Ground for Human Body Be sure to wear a grounding band (1M) t

24、hat is prop- erly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench (4)Be sure to place a conductive sheet or copper plate with proper grounding (1M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static ele

25、ctricity charge on clothing will not escape through the body ground- ing band, be careful to avoid contacting semi-con- ductors with your clothing. CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M CBA 2-1 2-1 SPECIFICATIONS NOTES: 1. All Items are measured without pre-emphasis unless otherw

26、ise specified. 2. Power supply : AC120 V 60 Hz 3. Load imp. : 100 k ohm 4. Room ambient : + 25 C ITEMCONDITIONSUNITNOMINALLIMIT 1. Video Output75 ohm load Vpp1.0 0.1 2. Optical Digital OutdBm-18 3. Audio (PCM) 3-1. Output Level1 kHz 0 dBVrms2.0 3-2. S/NdB120 3-3. Freq. Response DVDfs = 48 kHz 2022 k

27、HzdB 0.5 CDfs = 44.1 kHz 2020 kHzdB 0.5 3-4. THD+N DVD1 kHz 0dB%0.004 CD1 kHz 0dB%0.0045 OUTPUT SIGNAL FORMAT NTSC color POWER SOURCE 120 V AC +/- 10%, 60 Hz +/- 0.5% POWER CONSUMPTION 10 W (standby: 0.8W) OPERATING TEMPERATURE 41F(5C) to 104F(40C) DIMENSIONS W 17-1/8” (435 mm) H 2” (51 mm) D 8-5/16

28、” (211 mm) WEIGHT Approx2.9 lbs (1.3 kg) GENERAL INFORMATION2 2-2 2-2 COMPARISON OF MODELS : Same as on left ITEMDV-P745U/P745U(C)DV-P735U/P735U(C)/P533U Dimensional435(W) x 50(H) x 211(D) mm435(W) x 55(H) x 211(D) mm Hot Stamp- Ultra Vision Badge- Drive Speed1x Laser2 DVD/VCD/SVCD/CD-DAO / - / - /

29、O CD-R/CD-RW/DVD-R (Video Format)O / O / O DVD-RAM/DVD-RW- / O (Video Mode)- / - MP3/WMAO / - OSD languages3 (English, French, Spanish) Jog Shuttle on Front- Headphone Jack / Volume- / - PAL Disc NTSC Out- Video Out Mode NTSC/PAL/PAL60O / - / - S-Video / Component / CompositeO / O / O Video D/A Conv

30、erter10bit / 54MHz Black Level SelectO Picture Control- Progressive OutO Audio D/A Converter192kHz / 24bit Digital Audio Out Optical / Coaxial- / O Dolby Digital 5.1 ch Decode- DTS Digital OutO - Virtual SurroundO Dynamic Range Compression (Dolby Digital) O DVD Audio- Search Speed 2 to 100 (FORWARD/

31、REWIND) (DVD: 2, 8, 50, 100/CD: 16) Slow Speed1/16, 1/8, 1/2 (FORWARD/REWIND) IP Search (Smooth 2x Play)O 1.5x Play with Audio- Step Forward / ReverseO / - Still Picture Select (Frame/Field)Frame / Field / AutoAuto Only APPEARANCEGENERALVIDEOAUDIOTRICK PLAY 2-3 ITEMDV-P745U/P745U(C)DV-P735U/P735U(C)

32、/P533U Disc NavigationO O (DV-P735U/P735U(C) - (DV-P533U) DVD Zoom x2 / x4 / x16O / O / - Program and Random Play of DVD / VCD - A-B RepeatO RepeatO ResumeOO (can not effect after Power off) Closed Caption for NTSC DVDO Front Panel Display DimmerO Screen SaverO Auto Power OffO (always on)O Jog Shutt

33、le on Remote- TV Control- O (DV-P735U/P735U(C) - (DV-P533U) FEATURES REMOTE CONTROLLER 2-4 2-3 OPERATING CONTROLS AND FUNCTIONS REAR VIEW 12345678 9 1012131411 FRONT PANEL 1. y/I (POWER/STANDBY) Switch the player to ON or OFF. (As to the indication of the Operate switch, “I” indicates ON and “y” ind

34、icates electrical power STANDBY.) 2. SKIP/FR Go to previous chapter or track during playback; Press and hold for 1.5 seconds for a reverse search. 3. PLAY Start or resume disc playback. Press to switch progressive scanning mode and interlace mode. 4. FF/SKIP Go to next chapter or track during playba

35、ck; Press and hold for 1.5 seconds for a forward search. 5. STOP Stop playback. 6. OPEN/CLOSE Open/close the disc tray. 7. Disc tray 8. Display 9. MAIN (AC Power Cord) Connect to a standard AC outlet. 10. COAXIAL (Digital audio out) Use coaxial digital audio out to connect to a compatible Dolby Digi

36、tal receiver. Use to connect to a Dolby Digital decoder or DTS decoder. 11. AUDIO OUT (Left/Right) Connect to the AUDIO inputs of an amplifier, receiver or stereo system. 12. VIDEO OUT Use a video cable to connect one of the jack to Video input on your A/V-compatible TV, wide screen TV, or Stereo sy

37、stem. 13.COMPONENT VIDEO OUT Connect to a TV with the Component video in jacks. 14. S-VIDEO OUT Use the S-Video cable to connect this jack to the S- Video jack on your A/V-compatible TV or wide screen TV for a higher quality picture. Caution: Do not touch the inner pins of the jacks on the rear pane

38、l. Electrostatic discharge may cause permanent damage to the player. 2-5 REMOTE CONTROL HITACHI DV-RM745U / I DISPLAY 213 456 789 +100 SUBTITLEANGLE REPEAT A-B REPEAT CLEAR AUDIO SEARCH MODE PAUSE /STEP SKIP PLAYSTOP MENUTOP MENU SETUP MODE ZOOM ENTER RETURN DISC NAVIGATION OPEN / CLOSESURROUND 2 3

39、24 26 25 21 20 22 19 18 8 10 12 13 11 14 4 7 5 9 16 15 6 1 17 27 23 1. SURROUND Press to activate the virtual sound. 2.yy/I(POWER/STANDBY) Press to turn the power on and off. (As to the indication of the Operate switch, I shows ON and yy shows electrical power stand-by.) 3. A-B REPEAT Repeats playba

40、ck of a selected section. 4. REPEAT Repeats playback of the current disc, title, chapter or track. 5. MODE Activates program playback or random playback mode when playing CDs or MP3. Sets Black level and virtual surround. 6. ZOOM Enlarges part of a DVD-reproduced image. 7. CLEAR Press to reset the s

41、etting. 8. ANGLE Press to change the camera angle to see the sequence being played back from a different angle. 9. SUBTITLE Press to select the desired subtitle language. 10. MENU Press to display the menu of the Disc. 11. Arrow Buttons (ss BBppoo) Move the cursor and determines its position. 12. EN

42、TER Press to accept a setting. 13. RETURN Returns to the previous operation. 14. SKIP Press to skip Chapters or Tracks. 15. STOP Press to stop the disc motion. 16. EE Press to view the DVD picture in fast reverse motion or to reverse playback of an Audio CD. 17. PAUSE/STEP Press to pause Disc playba

43、ck. Press repeatedly to advance the DVD picture step by step or one frame at a time. 18. DD Press to fast forward the Disc. Press PAUSE/STEP, then press this button to begin slow motion playback. Press this button repeatedly to change the forward speed of slow motion. 19. PLAY Press to begin playbac

44、k. 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. TOP MENU Press to call up the title menu. 23. AUDIO Press to select a desired audio language or sound mode. 24. DISPLAY Press to access or remove the displ

45、ay screen during DVD or Audio CD playback. 25. Numerical Buttons Press to directly select a Track (Audio CD and MP3) for playback. 26. OPEN/CLOSE Press to open or close the disc loading tray. 27. SEARCH MODE Press to access or remove the Search display, which allows you to go directly to a specific

46、Title/Chapter/Track/Time. 2-6 2-4 COMPARISON OF MAIN CONTROL ICS : Same as on left ITEMDV-P745U/P745U(C)DV-P735U/P735U(C)/P533U SWNC7SB3157P6X / SN74LVC1G3157DCKR (IC201) NC7SB3157P6X (IC201) OP AMPLM324PWR / LM324PT (IC202)KIA324F-EL (IC202) SERVO DRIVESA5694 / FAN8024CDTF / BA5954FP-E2 / BA5888FP-

47、E2 (IC301) SA5694 / BA5954FP-E2 (IC301) RESETPST3229NR (IC461)PST9127NR / BMR-110527 (IC461) BMR-110529 (IC462)- MICRO CONTROLLERMN35202 (IC101)MN35102 (IC101) SDRAMK4S641632H-UC75 (IC503)K4S643232F-TC60 / HY57V643220CT- (7,55) (IC102) FLASH ROMMBM29LB160T / BM90TN-K / MX29LV160ABTC-90G (IC103) MBM2

48、9LV160BE90TN-K / MBM29LV160B90PFTNSFK / HY29LV160BT-90 / MX29LV160BTC-90 / M29W160DB70N6 (IC103) LATCH-74LVX573MTCX / TC74LVX573FT(EL) (IC104, IC105) CLOCK GENERATOR-BU2363FV-E2 (IC451) AUDIO D/A CONVERTERPCM1755DBQR (IC601)PCM1751DBQR (IC601) ERROR VOLTAGE DETLTV-817B-F / LTV-817C-F / PS2561A-1(W)

49、/ PS2561A-1(Q) (IC1001) LTV-817B-F / LTV-817C-F (IC1001) 1.2V REGPQ070XZ5MZP (IC1002)PQ070XF01SZ (IC1002) SHUNT REGULATORKIA431-AT / FAN431AZXA (IC1006)KIA431-AT (IC1006) AMPKIA4558P / NJM4558D (IC1201) (IC1201) VIDEO DRIVERMM1637XVBE (IC1402)MM1622XJBE (IC1402) MM1636XWRE (IC1403)- FRONT PANEL CONTROLPT6313-S-TP / SC16313 (IC2001)PT6313-S-TP (IC2001) 2-7 2-5 LIST OF ABBREVIATIONS AND TERMS FOR DVD PLAYER IndexAbbreviation/TermExplana