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Hitachi DV-P745U Service Manual

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TK
No. 0401E
DV-P745U
DV-P745U(C)
SERVICE MANUAL
DO NOT RESELL OR DIVERT IMPROPERLY.
DO NOT RESELL OR DIVERT IMPROPERLY.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER
February
2004
Digital Media Division, Tokai

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  • Page 1 No. 0401E DV-P745U DV-P745U(C) SERVICE MANUAL DO NOT RESELL OR DIVERT IMPROPERLY. DO NOT RESELL OR DIVERT IMPROPERLY. SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT DVD PLAYER February 2004 Digital Media Division, Tokai...
  • Page 2: Table Of Contents

    CONTENTS 1 CAUTIONS FOR SAFETY IN PERFORMING SCHEMATIC AND BLOCK DIAGRAMS/CBA'S REPAIR ....... .1-1 1 SCHEMATIC DIAGRAMS/CBA’S AND TEST POINTS .
  • Page 3: Repair

    CAUTION FOR SAFETY IN PERFORMING REPAIR 1-1 LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin.
  • Page 4: Important Safety Precautions

    1-2 IMPORTANT SAFETY PRECAUTIONS 1-2-1 Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.
  • Page 5: Safety Check After Servicing

    1-2-3 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, Chassis or Secondary Conductor and wires have been returned to their original posi- tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety Primary Circuit Terminals standards.
  • Page 6: Standard Notes For Servicing

    1-3 STANDARD NOTES FOR SERVICING 1-3-1 Circuit Board Indications 1-3-3 Pb (Lead) Free Solder a. The output pin of the 3 pin Regulator ICs is indi- When soldering, be sure to use the Pb free solder. cated as shown. 1-3-4 How to Remove / Install Flat Top View Bottom View Pack-IC...
  • Page 7 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each (1) Using desoldering braid, remove the solder from all pin or the solder lands under the IC when removing pins of the flat pack-IC.
  • Page 8 2. Installation (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from soldering iron to center of the flat pack-IC and heat the foil of each pin of the flat pack-IC on the CBA so up.
  • Page 9 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 (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.
  • Page 10: General Information

    GENERAL INFORMATION 2-1 SPECIFICATIONS ITEM CONDITIONS UNIT NOMINAL LIMIT 1. Video Output 75 ohm load ± 0.1 2. Optical Digital Out 3. Audio (PCM) 3-1. Output Level 1 kHz 0 dB Vrms 3-2. S/N 3-3. Freq. Response fs = 48 kHz 20~22 kHz ±...
  • Page 11: Comparison Of Models

    2-2 COMPARISON OF MODELS ←: Same as on left ITEM DV-P745U/P745U(C) DV-P735U/P735U(C)/P533U Dimensional 435(W) x 50(H) x 211(D) mm 435(W) x 55(H) x 211(D) mm ← Hot Stamp ← Ultra Vision Badge ← Drive Speed ← Laser ← DVD/VCD/SVCD/CD-DA O / --- / --- / O ←...
  • Page 12 ITEM DV-P745U/P745U(C) DV-P735U/P735U(C)/P533U O (DV-P735U/P735U(C)) Disc Navigation --- (DV-P533U) ← DVD Zoom x2 / x4 / x16 O / O / --- Program and Random Play of DVD / ← ← A-B Repeat ← Repeat Resume O (can not effect after Power off) ←...
  • Page 13: Operating Controls And Functions

    2-3 OPERATING CONTROLS AND FUNCTIONS FRONT PANEL 3 4 5 REAR VIEW 9. MAIN (AC Power Cord) 1. y/I (POWER/STANDBY) Switch the player to ON or OFF. Connect to a standard AC outlet. 10. COAXIAL (Digital audio out) (As to the indication of the Operate switch, “I” indicates Use coaxial digital audio out to connect to a compatible ON and “y”...
  • Page 14 24. DISPLAY Press to access or remove the display screen during DVD or Audio CD playback. 25. Numerical Buttons HITACHI Press to directly select a Track (Audio CD and MP3) for DV-RM745U playback. 26. OPEN/CLOSE Press to open or close the disc loading tray.
  • Page 15: Comparison Of Main Control Ics

    2-4 COMPARISON OF MAIN CONTROL ICS ←: Same as on left ITEM DV-P745U/P745U(C) DV-P735U/P735U(C)/P533U NC7SB3157P6X / SN74LVC1G3157DCKR NC7SB3157P6X (IC201) (IC201) OP AMP LM324PWR / LM324PT (IC202) KIA324F-EL (IC202) SERVO DRIVE SA5694 / FAN8024CDTF / BA5954FP-E2 / SA5694 / BA5954FP-E2 (IC301)
  • Page 16: For Dvd Player

    2-5 LIST OF ABBREVIATIONS AND TERMS FOR DVD PLAYER Index Abbreviation/Term Explanation See Dolby AC3. CD-R One type of DVD standard disc, to which writing once is possible (recordable type) CD-RW One type of CD standard disc, to which writing up to 1000 times is possible Component video Used for outputs of HDTV video signal format.
  • Page 17: Maintenance And Inspection

    MAINTENANCE AND INSPECTION 3-1 TROUBLESHOOTING Troubleshooting is how to service for the specifying malfunction or poor parts. Detect malfunction or poor parts and service as the following charts. FLOW CHART NO.1 The power cannot be turned on. Is the fuse normal? See FLOW CHART No.2 <The fuse blows out.>...
  • Page 18 FLOW CHART NO.6 P-ON+10V (EV+11V) is not outputted. Check D1030, D1048, C1035, C1048, L1009 and Is 11V voltage supplied to the emitter of Q1002? the periphery circuit, and service it if defective. Check Q1016 and PWRCON line and service it if Is the voltage of base on Q1002 lower than the defective.
  • Page 19 FLOW CHART NO.11 The fluorescent display tube does not light up. Is 3.3V voltage supplied to Pins(6,24) of IC2001? Check the EV+3.3V line and service it if defective. Is the voltage of approximately -20V supplied to Check the -FL (-20V) line and service it if defective. Pin(15) of IC2001? Is there 500kHz oscillation at Pin(26) of IC2001? Check R2002, IC2001 and their periphery, and...
  • Page 20 FLOW CHART NO.14 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Is the normal control voltage inputted to Pin(4) of Replace the "OPEN/CLOSE" button (SW2108). IC2001? Refer to "FLOW CHART NO.13" <The key operation is not functioning.>...
  • Page 21 FLOW CHART NO.19 Both functions of picture and sound do not operate normally. Replace the DVD Main CBA. No improvement can be found. Original DVD Main CBA is poor. Replace the DVD Mecha. FLOW CHART NO.20 Picture does not appear normally. Set the disc on the disc tray, and playback.
  • Page 22 FLOW CHART NO.21 Audio is not outputted normally. Set the disc on the disc tray, and playback. Replace the DVD Main CBA or DVD Mecha. Are the analog audio signals outputted to each pin of CN1601 on AV CBA? CN1601 14PIN AUDIO-L CN1601 16PIN AUDIO-R Check each line between each pin of CN1601 Are the analog audio signals inputted to each pin...
  • Page 23: Firmware Renewal Mode

    3-2 FIRMWARE RENEWAL MODE 3-2-1 How to Update the Firmware Ver- The appearance shown in (*2) of Fig. c is described as follows: sion 1. Turn the power on and remove the disc on the tray. Appearance State 2. To put the DVD player into version up mode, press Reading...
  • Page 24 10.Press [CLEAR] button on the remote control unit. Fig. h appears on the screen. " ******* " differ depending on the models. MODEL : ******* Version : *.** Region : * EEPROM CLEAR : OK EEPROM CLEAR : CLEAR EXIT: POWER Fig.
  • Page 25: Disassembly

    DISASSEMBLY 4-1 CABINET DISASSEMBLY INSTRUCTIONS 4-1-1 Disassembly Flowchart About tightening screws When tightening screws, tighten them with the follow- This flowchart indicates the disassembly steps to gain ing torque. access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route, and Screws Torque dress the cables as they were originally.
  • Page 26 (S-2) [1] Top Case (S-1) [3] Reinforce Plate Fig. D1 Fig. D3 (S-3A) (L-1) FCC Cover (S-3B) CN201 (L-3) CN601 CN301 CN401 [4] DVD Main (L-1) CBA Unit (L-2) [2] Front Assembly Fig. D2 Short the three short lands by soldering. (Either of two places.) Connector View for A...
  • Page 27 [7] Function CBA [5] DVD Mecha (S-4) [6] AV CBA (S-4) (S-5) CN2001 (S-4) (S-6) (L-4) Fig. D5 Fig. D6 HOW TO MANUAL EJECT (Method 1) 1. Remove the Top Case. 2. Remove the Reinforce Plate. 3. Rotate the roulette in the direction of the arrow as shown below.
  • Page 28 HOW TO MANUAL EJECT (Method 2) 1. Turn the unit over. 2. Insert the shaft less than a diameter of 3 mm (e.g. screwdriver) straightly into the opening as shown. 3. Turn the shaft along with the opening clockwise. View for B 4.
  • Page 29: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST 5-1 EXPLODED VIEW 2L011 2L011 2L081 2L011 2L081 2L021 2L021 2L021 2L105 2L105 DVD MAIN CBA [CBA REPLACEMENT (ORDER FORMAT)] AV CBA 2L021 [COMPONENT REPLACEMENT] 2L031 DVD MECHANISM [UNIT REPLACEMENT F1001 (ORDER FORMAT)] AC1001 FUNCTION CBA [COMPONENT REPLACEMENT] 2L041...
  • Page 30: Replacement Parts List

    5-2 REPLACEMENT PARTS LIST 5-2-1 Mechanical Parts List SYMBOL-NO P-NO DESCRIPTION SYMBOL-NO P-NO DESCRIPTION MECHANISM SECTION TJ17631 PANEL,FRONT TJ16981 FOOT,REAR TJ17572 CASE,TOP # AC1001 TE15463 CORD,AC TJ17573 DVD DRIVE MECHA TJ17579 HOLDER TJ17574 PLATE 2L011 TE13193 SCREW (3X10) 2L021 TJ17604 SCREW (3X11) 2L031 TJ10177...
  • Page 31: Electrical Parts List

    Note: Although some parts in the schematic diagrams have different names from those in 5-2-2 Electrical Parts List the parts list, there is no problem in replacing parts. SYMBOL-NO P-NO DESCRIPTION SYMBOL-NO P-NO DESCRIPTION Q1351 TC10778 TRANSISTOR KTC3199 SEMI-CONDUCTORS Q1352 TC10778 TRANSISTOR KTC3199 D1001...
  • Page 32: Schematic And Block Diagrams/Cba's

    SCHEMATIC AND BLOCK DIAGRAMS/CBA’S 6.1 SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: 1. Do not use the part number shown on these draw- WARNING ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.
  • Page 33 LIST 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. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 34: Wiring Diagram

    6.2 WIRING DIAGRAM VIDEO-Y VIDEO-Cb VIDEO-Cr VIDEO AUDIO-L AUDIO-R DIGITAL S-VIDEO AC CORD AUDIO OUT CN2001 CN2101 AV CBA KEY-2 FUNCTION CBA KEY-3 KEY-1 KEY-4 CN2101 is soldered directly to the PCB. CN1001 CN1601 (CN1001 is soldered directly to the PCB.) (CN1601 is soldered directly to the PCB.) CN401 CN601...
  • Page 35: Schematic Diagrams

    6.3 SCHEMATIC DIAGRAMS 6.3-1 DVD Main 1/3 Schematic Diagram...
  • Page 36: Dvd Main 2/3 Schematic Diagram

    6.3-2 DVD Main 2/3 Schematic Diagram...
  • Page 37 IC101 VOLTAGE CHART PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----...
  • Page 38: Dvd Main 3/3 Schematic Diagram

    6.3-3 DVD Main 3/3 Schematic Diagram...
  • Page 39: Av 1/3 Schematic Diagram

    6.3-4 AV 1/3 Schematic Diagram CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, CAUTION ! NOTE : REPLACE ONLY WITH THE SAME TYPE FUSE. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES If Main Fuse (F1001) is blown, check to see that all components in the power supply using hot GND as a common terminal.
  • Page 40: Av 2/3 Schematic Diagram

    6.3-5 AV 2/3 Schematic Diagram...
  • Page 41: Av 3/3 & Function Schematic Diagram

    6.3-6 AV 3/3 & Function Schematic Diagram FL2001 MATRIX CHART SACD SACD REPEAT TITLE GROUP PSCAN PSCAN REPEAT HD VCD GROUP TITLE 6-10...
  • Page 42: Waveforms

    6.4 WAVEFORMS Pin 8 of CN1601 Pin 16 of CN1601 VIDEO-Y VIDEO-Y 0.2V 0.2V 20µs AUDIO-R AUDIO-R 0.5ms 0.5ms Pin 10 of CN1601 Pin 19 of CN1601 VIDEO-C VIDEO-C 0.2V 0.2V 20µs SPDIF SPDIF 0.1µs C1402 PLUS LEAD NOTE: Input CD: 1kHz PLAY (WF4~WF6) DVD: POWER ON (STOP) MODE...
  • Page 43: Circuit Board Diagrams

    6.5 CIRCUIT BOARD DIAGRAMS 6.5-1 AV CBA Top View CAUTION CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. REPLACE ONLY WITH THE SAME TYPE FUSE. If Main Fuse (F1001) is blown, check to see that all components in the power supply ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES NOTE :...
  • Page 44: Av Cba Bottom View

    6.5-2 AV CBA Bottom View CAUTION CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. REPLACE ONLY WITH THE SAME TYPE FUSE. If Main Fuse (F1001) is blown, check to see that all components in the power supply ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 45: Function Cba Top/Bottom View

    6.5-3 Function CBA Top/Bottom View FUNCTION CBA Top View FUNCTION CBA Bottom View 6-14...
  • Page 46: Block Diagrams

    6.6 BLOCK DIAGRAMS 6.6-1 System Control / Servo Block Diagram 6-15...
  • Page 47: Digital Signal Process Block Diagram

    6.6-2 Digital Signal Process Block Diagram 6-16...
  • Page 48: Video/Audio Block Diagram

    6.6-3 Video / Audio Block Diagram 6-17...
  • Page 49: Power Supply Block Diagram

    6.6-4 Power Supply Block Diagram 6-18...
  • Page 50: System Control Timing Charts

    6.7 SYSTEM CONTROL TIMING CHARTS Tray Close ~ Play / Play ~ Tray Open Tray Disc Disc Tray Play Close Rotation Stop Open 3.3V Tray IN (TL221) Sled Drive 1.65V (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) Tracking Drive 1.65V (TP302) 6-19...
  • Page 51: Ic Pin Function Descriptions

    6.8 IC PIN FUNCTION DESCRIPTIONS IC2001 [ PT6313-S-TP ] Signal In/Out Name Function Name FP-CLK Clock Input FP-STB Serial Interface Strobe Key Data 1 Input Key Data 2 Input Power Supply a / KEY-1 Segment Output / Key Source-1 Segment Output / Key b / Key-2 Source-2 Segment Output / Key...
  • Page 52: Lead Identifications

    6.9 LEAD IDENTIFICATIONS 2SC2785(H) 2SA1015-Y(TPE2) 2SK3498 BN1L3Z(P) 2SC2120-Y(TPE2) KRA110M KTA1266(Y) KTA1267(Y) KTC3198(Y) KTC3199(GR,Y) KTC3203(Y) G D S E C B E C B KIA4558P FAN431AZXA NJM4558D PT6313-S-TP MM1636XWRE KIA431-AT SC16313 K A R PQ070XZ5MZP MM1637XVBE LTV-817B-F LTV-817C-F PS2561A-1(Q,W) 1: Vin 2: Vc Note: 3: Vo...
  • Page 53 DV-P745U No. 0401E Digital Media Division, Tokai DV-P745U(C)

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