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Hitachi DV-DS163E Service Manual

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Table of Contents
SM0607
DV-DS163E
DV-DS163E(UK)
SERVICE MANUAL
DV-DS253E
DV-DS253E(UK)
DO NOT RESELL OR DIVERT IMPROPERLY.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
HDD/DVD RECORDER
May 2006

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Hitachi DV-DS253E Instruction Manual
Hitachi DV-DS253E Instruction Manual 71 pages

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  Summary of Contents for Hitachi DV-DS163E

  • Page 1 SM0607 DV-DS163E DV-DS163E(UK) SERVICE MANUAL DV-DS253E DV-DS253E(UK) DO NOT RESELL OR DIVERT IMPROPERLY. SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT HDD/DVD RECORDER May 2006...

  • Page 2: Table Of Contents

    Table of Contents 1 Safety Precaution for Repair.... 1-1 (1) Top Cover, Fan .......... 4-2 (2) Front Block ..........4-3 1-1 Cautions ..........1-1 (3) TIMER-1 P.C.B, TIMER-2 P.C.B, 1-2 Electrostatic Protection Measures ... 1-2 Front Panel ..........4-3 1-3 Cautions When Handling DVD Drive ..1-2 (4) MAIN P.C.B ..........
  • Page 3 B Block Diagrams......... B-1 B-1 Overall Block Diagram ......B-1 B-2 SMPS Circuit Block Diagram ....B-2 B-3 POWER (I/O Board) Circuit Block Diagram ........... B-3 B-4 AUDIO/VIDEO Circuit Block Diagram ..B-4 B-5 SYSTEM Circuit Block Diagram ....B-5 Contents - 2...

  • Page 4: Safety Precaution For Repair

    The use of a substitute replacement component which does not have the same safety characteristics as the HITACHI recommended replacement one, shown in the parts list in this Service Manual, may create shock, fi re, or other hazards. Product safety is continuously under review and new instructions are issued from time to time.

  • Page 5: Electrostatic Protection Measures

    Safety Precaution for Repair > Electrostatic Protection Measures / Cautions When Handling DVD Drive 1-2 Electrostatic Protection Measures Semiconductor components can be damaged by static electricity charged on clothes, human body, etc. Take great care when handling components to avoid electrostatic damage, and perform servicing in an environment where grounding is complete.

  • Page 6: Cautions When Handling Hdd

    Safety Precaution for Repair > Cautions When Handling HDD (Hard Disk Drive) 1-4 Cautions When Handling HDD (Hard Disk Drive) HDD is a high precision device, and is very susceptible to vibrations or impact. Even if HDD operates normally immediately after it has been subjected to vibrations or impact, a problem may occur after it is used for a while: When servicing, take great care with the following.

  • Page 7: Lead-Free Solder

    Safety Precaution for Repair > Lead-Free Solder 1-5 Lead-Free Solder The printed circuit board that uses lead-free solder is adopted. To protect the global environment, use the recommended lead-free solder also during servicing. Read and observe the following before soldering: Caution ALWAYS wear protective goggles during soldering so that no solder smoke or scattered solder enters the eye.

  • Page 8: Notes When Using Service Manual

    Safety Precaution for Repair > Notes When Using Service Manual 1-6 Notes When Using Service Manual (1) Value units used in parts list Certain symbols are indicated as shown below for value units of resistors, capacitors and coils in parts list. When you read them, note the following regular indications: Parts Indication in list Regular indication...

  • Page 9: General Description

    2-1 Overview The HDD/DVD recorder models DV-DS253E and DS163E all incorporate 250-GB and 160-GB HDDs, made by Hitachi Global Storage Technologies. The DVD recorder block contains a DVD multi-drive: It is compatible with recording and playback of a variety of media – 5x DVD-RAM, 4x DVD-RW, 16x DVD-R, 4x DVD+RW, 16x DVD+R and 8x DVD+R DL.

  • Page 10: Disc Information

    General Description > Overview 2-1-2 Disc information Recordable and Pla ya ble Discs DVD-RAM • D VD-RAM discs can be formatted for VR mode recording. • T hese Discs can be recorded on repeatedly. Recordings can be erased, then you can record again on the same Disc.
  • Page 11 General Description > Overview 2 - 3...

  • Page 12: Specifi Cations

    HDD (250GB): Approx. 66 hours (XP mode), 129 hours (SP mode), (HDD) 239 hours (LP mode), 338 hours (EP mode) DV-DS163E HDD (160GB): Approx. 48 hours (XP mode), 84 hours (SP mode), 156 hours (LP mode), 222 hours (EP mode)

  • Page 13: Major Differences From Previous Model

    DVD+R DL Playable media DVD-RAM DVD-RW DVD-R DVD+RW DVD+R DVD+R DL CD-R/CD-RW (CD-DA, DivX, MP3, WMA, JPEG format) DV-DS253E: 250GB DV-DS251E: DV-DS163E: 160GB DV-DS161E: Remote control DV-DS253E/DS163E: DV-DS251E/DS161E: DV-RM253E DV-RM251E DV-DS253E(UK)/DS163E(UK): DV-DS161E(UK): DV-RM253E(UK) DV-RM251E(UK) Memory card slot For CF/MD/ST1 MD: x1...

  • Page 14: Function Differences From Previous Model

    General Description > Function Differences from Previous Model 2-4 Function Differences from Previous Model : Same as on left Item DV-DS253E/DS163E DV-DS251E/DS161E Recording Mode 4 mode (XP/SP/LP/EP) Time Shift Provided Clip Recording Provided Recording Instant Timer Recording Provided Timer Recording Provided Recording from DV Input Provided...

  • Page 15: Names Of Parts

    General Description > Names of Parts 2-5 Names of Parts Front Pa nel POWER button Display window Switches the recorder ON or OFF. Shows the current status of the recorder. (As to the indication of the Operate switch, “ I ” T/S: Indicates the timeshifting mode .
  • Page 16 General Description > Names of Parts 2 - 8...
  • Page 17 General Description > Names of Parts 2 - 9...

  • Page 18: Hdmi Connection

    General Description > HDMI Connection 2-6 HDMI Connection 2 - 10...

  • Page 19: List Of Abbreviations And Terms For Dvd Recorder

    General Description > List of Abbreviations and Terms for DVD Recorder 2-7 List of Abbreviations and Terms for DVD Recorder Index Abbreviation/Term Explanation See Dolby AC3. Black Level Function to correct the gradations on dark portions to make dark scenes easier- to-see.
  • Page 20 General Description > List of Abbreviations and Terms for DVD Recorder Index Abbreviation/Term Explanation I/P/B DVD recorders normally use data that is common between images, and individually record different data for each image. I-picture: Images recorded independently for the reference of commonly used data.

  • Page 21: Details Of Servicing And Troubleshooting

    Details of Servicing and Troubleshooting 3-1 How to Remove Disc from Faulty Recorder 1) Open the front lid (a). 2) Insert a pin (b) into the eject hole (c), and then press the lever in the direction of the arrow. 3) The disc lid (d) will open, and the disc tray (e) will come out a few millimeters.

  • Page 22: Initialization

    Details of Servicing and Troubleshooting > Initialization 3-2 Initialization Information: All this procedure can be executed by operating the buttons on remote control: Prepare the remote control. 3-2-1 Factory Set Execute Factory Set to return the items that have been set after Auto Programming unpacking to the factory defaults.

  • Page 23: Troubleshooting Hdd

    Details of Servicing and Troubleshooting > Troubleshooting HDD 3-3 Troubleshooting HDD This section shows how to determine a fault in HDD and how to format a new HDD to replace the faulty HDD. (1) HDD troubleshooting method If the playback picture temporarily stops or distortion occurs frequently, the HDD may be faulty. If this happens, observe the defective phenomenon, decide whether the HDD is faulty, and then repair or replace the HDD.

  • Page 24: Checking Versions Of Firmware And Updating

    Details of Servicing and Troubleshooting > Checking Versions of Firmware and Updating 3-4 Checking Versions of Firmware and Updating The fi rmware is occasionally updated to improve performance. Check whether a customer complaint can be solved by updating of fi rmware: If the complaint can be solved, update the fi...

  • Page 25: Main Fi Rmware Updating Procedure

    Details of Servicing and Troubleshooting > Checking Versions of Firmware and Updating 3-4-3 Main fi rmware updating procedure (1) To make Main fi rmware updating CD 1) Store the Main fi rmware data in PC. 2) Start a CD writer program, and drag the Main fi rmware data fi le (write it to the Root folder on CD).

  • Page 26: Loader Fi Rmware Updating Procedure

    Details of Servicing and Troubleshooting > Checking Versions of Firmware and Updating 3-4-4 Loader fi rmware updating procedure (1) To make loader fi rmware updating CD 1) Store the loader fi rmware data in PC, and decompress it: Three fi les (prm, bin, bin) will appear. 2) Start a CD writer program, and drag the three loader fi...

  • Page 27: Troubleshooting

    Details of Servicing and Troubleshooting > Troubleshooting 3-5 Troubleshooting 3-5-1 Troubleshooting electronic system (1) SMPS Circuit (on SMPS P.C.B) No 5.3VA F101: Normal? Replace F101. D125 : Normal? Replace D125. BD101: Normal? Replace BD101. D124 : Normal? Replace D124. TH01: Normal? Replace TH01.
  • Page 28 Details of Servicing and Troubleshooting > Troubleshooting No 5V for HDD & DVD No 12V for HDD & DVD IC156 Pin1 : Check D125, and IC155 Pin1: Check D124, and Approx. 5.5V? replace if necessary. Approx. 13.5V? replace if necessary. Check the PWR_CTL_H IC155 Pin4: Check the PWR_CTL_H...
  • Page 29 Details of Servicing and Troubleshooting > Troubleshooting (2) SMPS Circuit (on I/O P.C.B) No 5VT No 12V Check D124 Is Vcc (5.3V) supplied Check 5.3VA Is Vcc (14V) supplied on SMPS P.C.B, and to Q155 Emitter? on SMPS P.C.B. to Q164 Collector? replace if necessary.
  • Page 30 Details of Servicing and Troubleshooting > Troubleshooting No 5.0VD No 3.3V IC153 Pin1 : Check 5.3VA IC152 Pin1 : Check D127, and Approx. 5.3V? on SMPS P.C.B. Approx. 3.8V? replace if necessary. IC153 Pin4 : Check the PWR_CTL_H IC152 Pin4 : Check the PWR_CTL_H Approx.
  • Page 31 Details of Servicing and Troubleshooting > Troubleshooting No SW_12VG No SW_FD(+) Check D124 Check D121 Is Vcc (14V) Is Vcc (FD+) on SMPS P.C.B, and on SMPS P.C.B, and supplied to Q165 Collector? supplied to Q163 Collector? replace if necessary. replace if necessary.

  • Page 32: Disc Not Recognized

    Details of Servicing and Troubleshooting > Troubleshooting (3) SYSTEM Circuit (4) DVD Drive “Please wait” displayed Disc Not Recognized Continue at Power On P1D01 Pin1 : Approx. 12V? Check SMPS Circuit. R174 : Normal? Replace R174. Check IC701, and P1D01 Pin4 : Approx. 5V? Check SMPS Circuit.
  • Page 33 Details of Servicing and Troubleshooting > Troubleshooting (5) AUDIO Circuit When playing disc, no audio output. IC808 Pin 15,18 IC808 pin 1,2,3,4 : Check MAIN P.C.B, and (Audio_out R/L) : Pin 10 (RESET) : replace if necessary. Is there a signal? Pin 7,8 (I C) : IC808 Pin 14,19...
  • Page 34 Details of Servicing and Troubleshooting > Troubleshooting No OPTICAL / COAXIAL output. PVM01 Pin1 Check MAIN P.C.B, and (SPDIF_OUT) : replace if necessary. <OPTICAL> <COAXIAL> Check R851, and Check C856, and R851 : C856 : replace if necessary. replace if necessary. Check R852 and Check BD817, and BD817 :...

  • Page 35: No Tuner Audio Output

    Details of Servicing and Troubleshooting > Troubleshooting No TUNER AUDIO output TU701 Pin16 (SIF) : Check TU701, and Is there a signal? replace if necessary. C928, C963 : Check C928, C963, and Is there a signal? replace if necessary. IC903, IC904 Pin7 : IC903, IC904 Pin6 : Check R990, R991, Is there a signal?

  • Page 36: No External Input Audio

    Details of Servicing and Troubleshooting > Troubleshooting No External input audio IC803 Pin10,16 : Check Cable connections < AV1/AV2 > Is there a signal? & Input signal. C979, C980 : Check Cable connections < AV3 > Is there a signal? &...
  • Page 37 Details of Servicing and Troubleshooting > Troubleshooting (6) VIDEO Circuit When playing disc, no RGB / COMPONENT video signal. PVM01 Pin2,6,10 : Check MAIN P.C.B, and Is there a signal? replace if necessary. IC802 Pin18,21,24 : IC802 Pin1,16 : 5.3V Check SMPS Circuit.
  • Page 38 Details of Servicing and Troubleshooting > Troubleshooting No TUNER video signal, external input video signal C859 (TU_V_OUT) : Check TU701 Pin19, and < TUNER > Is there a signal? replace if necessary. C869 (EU1_V_IN), Check JK801, L827, L818, C871 (EU2_V_IN) : Cable connections <...
  • Page 39 Details of Servicing and Troubleshooting > Troubleshooting IC901 Pin34 Check MAIN P.C.B, and on I/O P.C.B Or R999 (RESET) : replace if necessary. X901 (24.576MHz) Check X901, and clock oscillated? replace if necessary. Check MAIN P.C.B, and R962,R978 (I C) : replace if necessary.
  • Page 40 Details of Servicing and Troubleshooting > Troubleshooting No DV(IEEE 1394) INPUT (video/audio) signal Check JK808, PVM02 Pin22,24,25,27 : Cable connections Is there a signal? & Input signal. Change to DV-mode. DV-mode switching? Using Remote Control Is Vcc (3.3V) Check 3.3V supplied to power supply.

  • Page 41: Disassembly And Reassembly

    Disassembly and Reassembly 4-1 Order of Disassembly Refer to the Disassembly Flowchart in Fig. 4-1-1 for the order of removing components. When reassembling components, use the reverse order to removal unless otherwise specifi ed. Reading Disassembly Flowchart: After locating the target component in the fl owchart, remove all components of the target in sequence, following the arrows (routes) from the top of fl...

  • Page 42: Disassembly

    Disassembly and Reassembly > Disassembly 4-2 Disassembly Information: Numbers in fi gures are step numbers in disassembly procedure, and letters in brackets [ ] show the types of screw. (1) Top Cover, Fan Top Cover (a) 1) Remove the nine screws [A]. 2) Remove the top cover in the direction of the arrow.

  • Page 43: Front Block

    Disassembly and Reassembly > Disassembly (2) Front Block 1) Disconnect the FFC on MAIN P.C.B (b). 2) Release the seven tabs. 3) Remove the front block (a) in the direction of the arrow. (a) Front Block (b) MAIN P.C.B. Fig. 4-2-2 Front Block (3) TIMER-1 P.C.B, TIMER-2 P.C.B, Front Panel 1) Remove the three screws [B].

  • Page 44: Main P.c.b

    Disassembly and Reassembly > Disassembly (4) MAIN P.C.B 1) Disconnect the four FFC. 2) Remove the two screws [C] and the two screws [D]. 3) Remove the MAIN P.C.B (a) from the I/O P.C.B (b) in the direction of the arrow. The MAIN and I/O P.C.B are directly joined via the connector: Removing the MAIN P.C.B in a direction other than that of the arrow could damage the connector.

  • Page 45: Power Cable, Smps P.c.b

    Disassembly and Reassembly > Disassembly (5) Power Cable, SMPS P.C.B Power Cable (a) 1) Disconnect the connector of the power cable. 2) Remove the power cable from the rear panel (e). SMPS P.C.B (b) 3) Disconnect the two connectors. 4) Remove the four screws [C]. 5) Remove the SMPS P.C.B from the I/O P.C.B (c) in the direction of the arrow.

  • Page 46: Hdmi Block, Hdmi P.c.b

    Disassembly and Reassembly > Disassembly (6) HDMI Block, HDMI P.C.B 1) Disconnect the FFC. 2) Remove the screw [G]. 3) Remove the screw [C], and then lift the unit of the HDMI block (a). 4) Remove the two screws [H] and remove the HDMI P.C.B (b). Caution during disassembly and reassembly: Securely connect the HDMI P.C.B and the HDMI frame (c).

  • Page 47: Front Frame, Dvd Block, Dvd Drive Unit, Loader P.c.b

    Disassembly and Reassembly > Disassembly (7) Front Frame, DVD Block, DVD Drive Unit, LOADER P.C.B Front Frame (a) 1) Remove the two screws [C] 2) Remove the front frame in the direction of the arrow. DVD Block (b) 3) Disconnect the FFC. 4) Disconnect the connector.

  • Page 48: Hdd Block, Hdd P.c.b, Hdd

    Disassembly and Reassembly > Disassembly (8) HDD Block, HDD P.C.B, HDD HDD Block (a) 1) Disconnect the FFC. 2) Disconnect the connector. 3) Remove the four screws [C]. 4) Remove the HDD block in the direction of the arrow. HDD P.C.B (b), HDD (c) 5) Disconnect the FFC from the HDD P.C.B..

  • Page 49: Card P.c.b

    Disassembly and Reassembly > Disassembly 8) [F] 8) [F] 8) [F] 6) [C] 8) [F] Fig. 4-2-8B HDD P.C.B, HDD (9) CARD P.C.B 1) Disconnect the FFC. 2) Remove the three screws [C] 3) Remove the CARD P.C.B (a) in the direction of the arrow. (a) CARD P.C.B 2) [C] Unlock...

  • Page 50: I/O P.c.b

    Disassembly and Reassembly > Disassembly (10) I/O P.C.B 1) Remove the fi ve screws [K]. 2) Remove the three screws [C]. 3) Remove the I/O P.C.B in the direction of the arrow. 2) [C] (a) I/O P.C.B 2) [C] [C] M3X6 (Gold) [K] M3X8 (Black) 2)[C] 1) [K]...

  • Page 51: Exploded View And Parts List

    Exploded View and Parts List 5-1 Exploded View Note: Components without any numbers in exploded views were not assigned as service parts as of the date of issue of this manual. TIMER-2 P.C.B [Component replacement] TIMER-1 P.C.B [Component replacement] CABLE2 SMPS P.C.B [Component replacement]...

  • Page 52: Parts List

    THE UPDATED PARTS LIST FOR THIS MODEL IS AVAILABLE ON ESTA 5 - 2...

  • Page 53: S Schematic, Wiring Diagrams

    Schematic, Wiring Diagrams S-1 Wiring Diagram m FAN MOTOR AV3/COMP/ VIDEO EURO AV2/ OPTICAL COAXIAL SELECT SW EURO AV1 P104 FD(+) FD(-) HDMI -28VA SMPS 14VA 33VA PHM01 3.8VA 5.3VA P1D01 PWR_CTL_H PMH10 LOADER 4pin 40pin MAIN 40pin 6B B 40pin HDD UNIT PMT05...

  • Page 54: Smps Schematic Diagram

    The following shows the neme of circuit and plug to which signal is connected and the address: S-2 SMPS Schematic Diagram Name of citcuit T/W: JUMPER To MAIN diagram VIDEO （3A) Address PG1001 Name of citcuit To MAIN AUDIO-L diagram and plug PG2001 AUDIO-R Address...

  • Page 55: Power Schematic Diagram (I/O P.c.b

    S-3 POWER Schematic Diagram (I/O P.C.B) The following shows the neme of circuit and plug to which signal is connected and the address: Name of citcuit To MAIN diagram VIDEO （3A) Address PG1001 Name of citcuit To MAIN AUDIO-L diagram and plug PG2001 AUDIO-R （3A)

  • Page 56: Tuner/System Schematic Diagram (I/O P.c.b

    TUNER/SYSTEM Schematic Diagram (I/O P.C.B) To DECODER (1E) To POWER (8A) For Factory To JACK (5C) To POWER (8D) To JACK (8D) To JACK (5D) S524A60X51-SCT0 For Factory MN101D10F MM1510XNRE JACK (8D,8C) The following shows the neme of circuit and plug to which signal is connected and the address: Name of citcuit To MAIN...

  • Page 57: Jack Schematic Diagram (I/O P.c.b

    S-5 JACK Schematic Diagram (I/O P.C.B) JK802 COAXIAL AV3 / COMPONENT The following shows the neme of circuit and plug to JK801 which signal is connected and the address: EURO AV2 EURO AV1 Name of citcuit To MAIN diagram VIDEO （3A) Address PG1001...

  • Page 58: Decoder Schematic Diagrams (I/O P.c.b

    S-6 DECODER Schematic Diagram (I/O P.C.B) SAA7137DHS JACK (5B,5C) TUNER/ SYSTEM (8E) JACK (8B) JACK (5B) JACK (8C) JACK (5C) SW_A_OUT_R SW_A_OUT_L JACK (5B) The following shows the neme of circuit and plug to which signal is connected and the address: Name of citcuit To MAIN diagram...

  • Page 59: Timer-1,Timer-2 Schematic Diagram (Timer-1,Timer-2 P.c.b

    S-7 TIMER-1,TIMER-2 Schematic Diagram (TIMER-1,TIMER-2 P.C.B) TIMER-2 TIMER-1 FV-834ND SW901 POWER SW903 SW909 SW907 HDD/DVD RESOLUTION SW906 SW904 SW905 SW908 SW902 STOP PLAY/PAUSE OPEN/CLOSE MAIN PMT05 S - 7...

  • Page 60: Hdmi Schematic Diagram (Hdmi P.c.b

    S-8 HDMI Schematic Diagram - To Be Report - S - 8...

  • Page 61: Circuit Waveforms

    S-9 Circuit Waveforms PVM01 Pin1 PVM01 Pin10 PVM02 Pin3 AOUT_IEC958 VOUT_G/Y X901 PVM01 Pin2 PVM01 Pin18 14.31818MHz VOUT_R/Pr VOUT_CVBS PVM01 Pin6 PVM01 Pin22 IC901 Pin108 27MHz VOUT_B/Pb VOUT_C PVM01 Pin9 PVM02 Pin1 VIN_CLK S - 9...

  • Page 62: Circuit Voltage Chart

    S-10 Circuit Voltage Chart MODE MODE MODE MODE MODE MODE MODE MODE PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. C151 KIA78R25 0.00 0.00 0.00 0.01 0.01 0.01 0.64 0.63 0.63 6.06 6.06 6.06 5.80...

  • Page 63: C Circuit Board Diagrams

    Circuit Board Diagrams C-1 I/O Circuit Board Diagram SIDE A 3E E 4 4 E 4 4 4 4 E 6 6 E 7E E 7 7 E E 7E E E E E E 7E E 4D D 4D D D D D D D D D D D D D D D 6D D D D...

  • Page 64: I/O Circuit Board Diagram

    I/O Circuit Board Diagram SIDE B 3 3 3 3 E 4E E 4E E 6 6 6 E 6 6 E E 7 7 7 E 7 7 E E E 7 7 E E 3 3 3 D D D 4D D D D D 4 4 4 D D D...

  • Page 65: Smps Circuit Board Diagram

    C-2 SMPS Circuit Board Diagram, C-3 TIMER-1 Circuit Board Diagram, C-4 TIMER-2 Circuit Board Diagram C-2 SMPS Board Diagram C-4 TIMER-2 Circuit Board Diagram SIDE A 3D D SIDE B C-3 TIMER-1 Circuit Board Diagram SIDE A SIDE B 2B B 2 2 B 3B B B B 6 6 6 B...

  • Page 66: Hdmi Circuit Board Diagram

    C-5 HDMI Circuit Board Diagram, C-6 HDD Circuit Board Diagram C-5 HD C 5 HD D D DMI Board Diagram DMI Board Diagram C-6 HDD C 6 HDD C C Circuit Board Diagr Circuit Board Diagr ra ra SIDE A SIDE B SIDE A 2 2 2 2 2 D D D...

  • Page 67: B Block Diagrams

    Block Diagrams B-1 Overall Block Diagram MAIN VIDEO 3-IN VIDEO 4-IN S-VIDEO IN VOUT_CVBS CVBS OUT IC803 EURO AV1 S VIDEO OUT VOUT_Y/C VIN_D[9:0] Y/Pb/Pr or R/G/B VOUT_Y/Pb/Pr_R/G/B IC901 EURO AV2 AV_DEC OPTICAL & COAXIAL (AV DECODER) AOUT_IEC958 S/PDIF S/PDIF AUDIO OUT Decoder SAA7137...

  • Page 68: Smps Circuit Block Diagram

    B-2 SMPS Circuit Block Diagram BD101 RECTIFIER & SMOOTHING BLOCK TH01 (D121,FR121,C120,R181, R191,R131,ZD121) To I/O (P1701) C103 FD(+) SNUBER RECTIFIER & BLOCK SMOOTHING BLOCK (D101,R104, (D122,C122,R122) FD(-) C105,C106) -28V 5V RECTIFIER & SMOOTHING BLOCK NOISE FILTER (D125,C121) 14VA BLOCK (V101,C101,C102, R101,L102) 14V RECTIFIER &...

  • Page 69: Power (I/O Board) Circuit Block Diagram

    B-3 POWER (I/O Board) Circuit Block Diagram 5.3VA 5.2V SW_12VG 33VT IC701-73 IC701-51 IC802-1,16 IC903,904-6 IC803-2,4 TU701-17 (SYSTEM µP ) (VIDEO SW) (AUDIO SW) (AV SW) (TUNER) (SYSTEM µP ) IC704-1 IC703-3,6 JK803-2 IC801-8 (PWR FAIL) (AMP) (OPTICAL) (OP AMP) IC705-8 TU701-4 (EEPROM)

  • Page 70: Audio/Video Circuit Block Diagram

    B-4 AUDIO/VIDEO Circuit Block Diagram POWER_CTL_H TIMER_H IC701 IC705 IC705 STANBY_H I2C I/O SYSTEM MICOM 24LC16B EEPROM EEPROM RGB_SEL I2C I/O SW_FD(+) A_MUTE_ IC703 IC703 AUDIO MUTE AUDIO Mute CV.IN2 Z_MUTE_L/R SW_5.3VA BLOCK MM1510 Block IC801 6dB Buffer BLOCK DAC_A MUTE_L/R SW_12VG IC707...

  • Page 71: System Circuit Block Diagram

    B-5 SYSTEM Circuit Block Diagram SECAM_AM TU_L_OUT IC_OUT_L IC903,904 TU_R_OUT IC803 IC_OUT_R AUDIO SW AV SW IC901 AV. DEC IC705 SMPS TU701 EEPROM X702 X701 POWER BOARD TUNER 14.31818MHz 32.768KHz I2C_DATA PWR_CTL_H I2C_CLK TIMER_H SMPS Block ON I/O BOARD STANBY_H FLD_CLK SW_V_OUT IC803...
  • Page 72 Fax: +46 (0) 8 562 711 13 Tel: +39 02 38073415 Servizio Clienti Email: csgswe@hitachi-eu.com Fax: +39 02 48786381/2 Email: customerservice.italy@hitachi-eu.com HITACHI EUROPE S.A.S HITACHI EUROPE LTD (Norway) AB Lyon Office STRANDVEIEN 18 B.P. 45, 69671 BRON CEDEX 1366 Lysaker FRANCE...

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