Page 1 Change 1 DZ-MV780A DZ-GX20A DZ-MV730A During the product warranty period, please contact DO NOT RESELL OR DIVERT IMPROPERLY 1.800.HITACHI (800.448.2244) for guidance. SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT DVD VIDEO CAMERA/RECORDER February 2005 Digital Media Division,Tokai Version 0502E.1...
Page 2: Table Of Contents
3 Description of Operation ....3-1 (2) Top Cover 3-1 Description of Structure ......3-1 [DZ-GX20A/MV780A/MV730A] ....5-3 3-2 Description of Newly Adopted (3) Cushion F and Cushion R [DZ-GX20A/ Technology ..........3-3 MV780A/MV730A] ......... 5-4 (4) Lens Cover [DZ-GX20A/MV730A] ..5-4 4 Troubleshooting........4-1 (5) L Block [DZ-GX20A/MV730A] ....
Page 3 7 Exploded View ........7-1 6 Adjustment .......... 6-1 7-1 Exploded Views ........7-1 6-1 Creating Reference Data ......6-1 7-1-1 DZ-GX20A/MV730A Main ..... 7-1 6-1-1 List of Jigs and Tools used when Creating 7-1-2 DZ-GX20A Camera ....... 7-2 Reference Data ........6-2 7-1-3 DZ-MV730A Camera ......
Page 4 S Schematic & Wiring Diagrams ..S-1 C Circuit Board Diagrams ..... C-1 S-1 DZ-GX20A/MV730A Wiring Diagram ..S-1 C-1 GSL-H ........... C-1 S-2 DZ-MV780A Wiring Diagram ....S-2 C-2 GSL-M ........... C-1 S-3 GSL-H ........... S-3 C-3 GSL-L ............ C-1 S-4 GSL-M ...........
Page 5: 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, fire, or other hazards. Product safety is continuously under review and new instructions are issued from time to time.
Page 6: 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 7: Lead-Free Solder
Safety Precaution for Repair > Lead-Free Solder 1-4 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 Safety Precaution for Repair > Lead-Free Solder (5) Cautions when using lead based solder It is recommended that you use lead-free solder when servicing, but it is also possible to service using lead based solder. However, if lead based solder is used for servicing, take care with the following: 1) Before using lead based solder, remove the lead-free solder completely from the point to be soldered.
Page 9: Notes When Using Service Manual
Safety Precaution for Repair > Notes When Using Service Manual 1-5 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 10 Safety Precaution for Repair > Notes When Using Service Manual (4) Indicating model names The indication of models is defined as follows: 1) The common parts of model names are omitted. Example: When indicating VM-D975LA and VM-D875LA: VM-D975LA/D875LA, D975LA/D875LA 2) If there is no difference in models going to different destinations, the indication of destination is omitted.
Page 11: General Description
General Description 2-1 Overview New models DZ-GX20A and DZ-MV780A/MV730A do not require a round DVD holder for disc. The DZ-GX20A and DZ-MV780A have high-performance CCD image sensors with a total of approx. 2,120,000 pixels and 1,330,000 pixels; both are equipped with a high-performance optical 10-power zoom.
Page 12: Features
General Description > Features / Specifications 2-2 Features High image-quality recording: The DZ-GX20A and DZ-MV780A are equipped with a CCD image sensors of approx. 2,120,000 pixels and 1,330,000 pixels. Recording in XTRA (VBR) mode is possible not only on DVD-RAM but also on DVD-R.
Page 13 Photo (DVD-RAM, SD memory card) Maximum time DVD-RAM/DVD-R (per side) XTRA mode: Approx. 18 min. of recordable FINE mode: Approx. 30 min. video STD mode: Approx. 60 min. Maximum DVD-RAM DZ-GX20A Approx. 750 (*1) number of (per side) DZ-MV780A Approx. 999 (*1) recordable DZ-MV730A...
Page 14 Approx. 495 g (when using DZ-BP7S battery) DZ-MV730A Approx. 525 g (when using DZ-BP7S battery) Provided accessories AC adapter/charger (DZ-ACS2) Battery [DZ-GX20A: DZ-BP14S, DZ-MV780A /MV730A: DZ-BP7S] AV/S input/output cable Infrared remote control (DZ-RM4W) [not provided with DZ-MV730A] Lithium battery for remote control (CR2032)
Page 15: Major Differences From Previous Models
Disc holder Disused Used Card SD memory card SD memory card MultiMediaCard Internal flash DZ-GX20A: Provided Not provided DZ-MV780A/MV730A: Not provided Assist light funtion Provided Not provided (When Low Light mode is selected) 16:9 mode Provided (Except for DVD-R using,...
Page 16 DZ-MV550A: Optical 16×, 240× with digital Optical 18×, 500× with digital zoom added (40× for photo) zoom added (40× for photo) Filter diameter DZ-GX20A/MV730A: 1-5/16” (34 mm) 1-7/16” (37 mm) DZ-MV780A: 1-1/4” (30.5 mm) Required minimum 1 lx 0.3 lx...
Page 17 Quick Menu button Provided Not provided (Quick mode slide switch) Full auto button Not provided Provided External video input function DZ-GX20A/MV780A: Composipe & S DZ-MV580A: DZ-MV730A: Composite only DZ-MV550A: EIS function DZ-GX20A/MV780A: Video mode only DZ-MV580A: DZ-MV730A: Video & Photo mode...
Page 18: Compatibility Of Recorded Discs
(In round DVD holder) *2: Unavailable on DZ-GX20A 2-5 Compatibility of Recorded Discs (1) DVD-RAM A DVD-RAM recorded or edited on DZ-GX20A/MV780A/MV730A can also be recorded, edited and played on other Hitachi DVD video camera/recorders. (*1) Similarly, A DVD-RAM recorded or edited on other Hitachi DVD video camera/recorders can be recorded, edited and played on DZ-GX20A/MV780A/MV730A.
Page 19: Names Of Parts
When the remote control is used to operate the DVD video camera/recorder, this receiver will receive the infrared signal. 1 2 3 Optical 10x zoom lens (for DZ-GX20A or DZ-MV780A only) 12 13 Optical 16x zoom lens (for DZ-MV730A only) Lens hood...
Page 20 General Description > Names of Parts 27 QUICK MENU button 31 32 33 To display only the functions that you frequently use (simple menus). 28 FOCUS button To switch between manual focus and auto- DISC focus. NAVIGATION SELECT 29 MENU button STOP/EXIT Press this button to display the menu for MENU...
Page 21: List Of Abbreviations And Terms For Dvd Video Camera/Recorders
General Description > List of Abbreviations and Terms for DVD Video Camera/Recorders 2-7 List of Abbreviations and Terms for DVD Video Camera/Recorders Index Abbreviation/Term Explanation See Dolby AC3. CPRM Content Protection for Recordable Media: Copyright protection function that is suitable for online distribution of music. CSP IC Chip Scale Package IC or Chip Size Package IC: This IC was made compact by arranging pins under the package.
Page 22 General Description > List of Abbreviations and Terms for DVD Video Camera/Recorders Index Abbreviation/Term Explanation MPEG Audio One of three audio compression standards (layers 1-3) defined by MPEG Layer 2 MultiMediaCard Also referred to as MMC. Compact memory card, 32 mm long × 24 mm wide × 1.4 mm thick SCSI Small Computer System Interface: A standard for connecting computer and...
Page 23: Description Of Operation
1) L case, R case, front case and lens cover As shown in Fig. 3-1-1, the external appearances of DZ-GX20A and DZ-MV730A are very similar, with only the DZ-MV780A being different: Only for DZ-MV780A, the shapes of L case, R case, front case and lens cover are different, and their assembly method is different, too.
Page 24 (2) Configuration of circuit boards and their mounting locations 1) Comparison between DZ-GX20A, DZ-MV780A and DZ-MV730A The configuration and locations of circuit boards in DZ-GX20A, DZ-MV780A and DZ-MV730A are identical, except for whether the SHE-H/SHE-M board is provided or not.
Page 25: Description Of Newly Adopted Technology
3-2 Description of Newly Adapted Technology (1) Assist Light Specify “Program AE: Low Light”, open the LCD monitor 90°, and turn it 180°. The LCD monitor screen will glow white. Specify "Program AE: Low Light". This function is referred to as “Assist Light”. (2) Quick start “Quick start”...
Page 26: Troubleshooting
Troubleshooting 4-1 Procedure for Troubleshooting Perform troubleshooting in the order shown in Fig. 4-1-1. Note: 1) Before troubleshooting or servicing, be sure to obtain customer approval for the following: a) The recorded contents on disc may be lost depending on the details and situation of fault (defect).
Page 27: Problem Guide
Troubleshooting > Problem Guide 4-2 Problem Guide Check the following before judging that this DVD video camera/recorder is faulty. Symptom Cause and Correction Power supplies Battery cannot be charged. Is the DC power cord connected to AC adapter/charger? Unplug it. If the DC power cord is connected, the AC adapter/charger will not enter the charge status.
Page 28 Troubleshooting > Problem Guide Symptom Cause and Correction During recording Pressing the REC or PHOTO Is disc-protect engaged? button will not start Release the disc-protect. recording. Is the erase prevention switch on SD memory card set to the lock position? Release the lock of erase prevention switch.
Page 29 Troubleshooting > Problem Guide Symptom Cause and Correction During playback Recognition of disc is not Is there any dirt, fingerprint or scratch on the disc? complete. Refer to “4-4-4 Cleaning disc and optical pickup” and clean the disc. Pressing the playback Was the image recorded on a device other than this DVD video camera/recorder? button will not start Playback of image recorded on devices other than this DVD video camera/...
Page 30 Troubleshooting > Problem Guide Symptom Cause and Correction Application is not normally Turn the PC and the DVD video camera/recorder off, and try again. run on PC. DISC EJECT button does The DISC EJECT button is invalid while the DVD video camera/recorder is not work when the DVD connected to PC.
Page 31 Troubleshooting > Problem Guide Symptom Cause and Correction An image that should have Use the following procedure to select the drive where DVD-RAM disc is loaded. been recorded does not 1) Click the "Preference" button at the top right of DVD-MovieAlbumSE screen. appear when DVD- 2) Click "Preference".
Page 32 Troubleshooting > Problem Guide Symptom Cause and Correction Disc cannot be removed. Is battery or AC adapter/charger (power supply) connected? (Disc insertion block does With the DVD video camera/recorder, a disc cannot be removed unless a power not open) supply is connected. Has disc rotation stopped? Making sure the disc stops, and then restart operation.
Page 33: Messages And Troubleshooting
Troubleshooting > Messages and Troubleshooting 4-3 Messages and Troubleshooting Some messages may appear on the LCD screen or in the viewfinder during operation. If a message appears, check the following, and then perform the appropriate action, according to the message content: 1) Is the disc bottom/surface reversed when using a single-sided disc? If so, reload the disc properly.
Page 34 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Cannot execute. Appears when combining or moving Specify “Category: All”, and then Change display scenes was instructed with “Category: operate the DVD video camera/ category to All. VIDEO or PHOTO” specified. recorder again.
Page 35 “Update Control Info.” in the “Disc” disc storage capacity, or when the control menu. information file is operated using a device other than the DZ-GX20A/ MV780A/MV730A. COPY PROTECT Appears if an attempt is made to record Stop trying to record.
Page 36 If the disc is removed while it is being recognized, the repair function of video file will be invalid. f) If the timing when power is turned off is inappropriate, normal repair may be impossible. g) If the disc contains data recorded on a device other than DZ-GX20A/MV780A/MV730A, normal repair may not be possible.
Page 37 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Disc error has occurred. Appears when the disc could not be Refer to “4-4-4 Cleaning disc and Finalizing is not complete. finalized because it was dirty. optical pickup” and clean the disc. Or replace the disc.
Page 38 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Disc includes protected Appears if the loaded disc has a program Release the write-protect using the scenes. (scene) that is write-protected by the device that has the software write- Delete scenes? software write-protect function, which is protect function for program units, or...
Page 39 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Disc overheat. Appears when the temperature inside Set the power switch to “OFF” with Please retry later. the DVD video camera/recorder, or the the disc loaded, and then leave the temperature of disc, is too high, and DVD video camera/recorder in a well- normal operation cannot be executed.
Page 40 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Found error in image file. Appears if repair has failed after Choose “YES” and designate total Repair disc now? message “Data error in a part of image repair (automatic repair) of video file. file.
Page 41 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Same scenes on Play List This message appears during user Choose “YES” and designate it to will be deleted. operation, if even one play list has been delete selected scenes. Delete scenes? created during scene deletion.
Page 42 Troubleshooting > Messages and Troubleshooting Cause/condition for Message Troubleshooting message to appear Use AC adapter/charger. Appears if a battery is used when Terminate the Disc Navigation finalizing a DVD-R. The specifications function, set the power switch to state that DVD-R can be finalized only “OFF”...
Page 43: Display Of Error Codes And Troubleshooting
Troubleshooting > Display of Error Codes and Troubleshooting 4-4 Display of Error Codes and Troubleshooting Restriction: The information included in this section is exclusively for service personnel: Do not disclose it to persons other than service engineers. The DVD video camera/recorder is equipped with a self-diagnostic function: If the DVD video camera/recorder detects any problem, it will choose an appropriate error code (4-digit alphanumeric) and store it in flash memory: Display the error code to perform troubleshooting, according to the content.
Page 44: Details Of Error Codes Display
Troubleshooting > Display of Error Codes and Troubleshooting 4-4-2 Details of error code display Up to eight error codes of problems can be displayed with the dates/times when the problems occurred. Error Code If the same problem occurs repeatedly, it will be judged as [Error Code] Date Time one problem, and the same error code will not continue to [0400]11111405...
Page 45 Troubleshooting > Display of Error Codes and Troubleshooting Error code Contents of problem Troubleshooting 3122 Recording on DVD-RAM failed because Any vibration or impact to disc while it is being accessed it was subject to vibrations or impact will result in no recording. when it was being accessed.
Page 46: Disc Load Check Flowchart
Troubleshooting > Display of Error Codes and Troubleshooting Disc Load Check Flowchart Check the following only when an instruction for referring to this chart is given in “Table 4-4-1 Major Error Codes and Troubleshooting” on the previous page. Caution Laser light striking the eye may cause your eyesight to be lost: For safety, be sure to remove any power supply (AC adapter/charger, battery, etc.) from the DVD video camera/recorder before starting work.
Page 47: Cleaning Disc And Optical Pickup
KS2424-X00 Toraysee (cleaning cloth only) produced by Toray b) LF-K200DCJ1 DVD-RAM/PD disc cleaner (cleaning cloth and cleaning liquid) produced by Panasonic c) OC-CS MO disc cleaner (cleaning cloth and cleaning liquid) produced by Hitachi Maxell (2) Cleaning optical pickup Note: Do not clean the optical pickup needlessly.
Page 48: Checking Versions Of Firmware And Updating
Troubleshooting > Display of Error Codes and Troubleshooting / Checking Versions of Firmware and Updating Caution Laser light striking the eye may cause your eyesight to be lost: For safety, be sure to remove any power supply (AC adapter/charger, battery, etc.) from the DVD video camera/recorder before starting work. 3) Check to see whether the optical pickup is dirty: If it is not dirty, cleaning is not necessary.
Page 49: Checking Firmware Versions
Troubleshooting > Checking Versions of Firmware and Updating 4-5-1 Checking firmware versions (1) Version check screen display method 1) Attach the AC adapter/charger to power the DVD video camera/recorder. 2) Set the power switch to the position shown below. Then operate the DVD video camera/recorder while watching the LCD monitor or viewfinder screen: a) Both disc and card are loaded: “VIDEO”...
Page 50: Updating Firmware
Troubleshooting > Checking Versions of Firmware and Updating (3) Details of information display/version screens When no disc is loaded Table 4-5-2 Detail/Version Screens Item Display content Datail Model Model name Model : DZ-xxxxx System System firmware version number System : x.xx Camera Camera microprocessor firmware version Camera...
Page 51 Troubleshooting > Checking Versions of Firmware and Updating 5) After approx. 20 seconds, the updating start screen (Fig. 4-5-2) will appear, and the firmware programs will be automatically updated thereafter. During updating, screens showing that designated firmware program is being updated will appear, followed by screen showing that updating is complete.
Page 52: Trouble Diagnosis
Cautions 1) The DZ-GX20A incorporates a high-voltage flash unit. Use countermeasures to prevent electric shock, such as wearing gloves, and take great care during work. The flash unit keeps its high voltage even if the power supply (AC adapter/charger, battery, etc.) is removed.
Page 53 Troubleshooting > Trouble Diagnosis No audio can be recorded. No image appears in viewfinder. Can no audio be Is video signal output Refer to "No video signal recorded from either Replace IC6201. from the AV/S input/ from AV/S input/output built-in or external output jack? jack".
Page 54 Troubleshooting > Trouble Diagnosis No image appears on LCD monitor. Is video signal output Refer to "No video from the AV/S input/ signal from the AV/S output jack? input/output jack". Does backlight turn on? Replace the LCD unit. List of check points Lead wire Remove the MAN circuit Location on...
Page 55 TL2001 (CCD_OUT1): Replace the MAN Replace IC0502. image output? CCD output signal? circuit board. *1: 12 V DC for DZ-GX20A; 15 V DC for other models. TL0523 (C15/12V): TL0525 (C8.5V): IC0502-26: 7V DC ( *1) 12V or 15V DC 8.5V DC...
Page 56 Troubleshooting > Trouble Diagnosis Autofocus does not operate. Replace the MAN Does manual focus circuit board. operate? Does zoom operate? Replace the lens unit. List of check points Lead wire Location on Circuit board Symptom Remove the MAN circuit soldered circuit board (side) board and solder a lead...
Page 57 Troubleshooting > Trouble Diagnosis Operation buttons on L case do not function. List of check points Remove the L block Lead wire Location on Circuit board Symptom soldered circuit board (side) or not TL8002 AEL (A) Need not TL8003 AEL (A) Need not Set to service position (B).
Page 58 Troubleshooting > Trouble Diagnosis DISC EJECT button does not operate. Is recognition sound Disc Eject button faulty: heard when the DISC TL7005 (EJECT_SW): Set to service position (A). Replace the rear case. EJECT button is (*1) pressed? *1: When DISC EJECT button is pressed. Does "EJECT"...
Page 59 Troubleshooting > Trouble Diagnosis REC button does not operate. List of check points Lead wire Location on Circuit board soldered Symptom circuit board Set to service position (A). (side) or not TL7001 MAN (B) Need not TL7001(REC_KEY): REC button faulty: (*1) Replace the rear case.
Page 60 Troubleshooting > Trouble Diagnosis Power does not turn on. List of check points Lead wire Location on Circuit board Remove the MAN circuit Symptom soldered circuit board (side) board and solder a lead or not wire to check points. F0501 - 0504 MAN (B) Need not TL0508...
Page 61 Troubleshooting > Trouble Diagnosis TL0511 (C1.5V): Replace IC0503. 1.5V DC TL0516 (D1.5V): Replace IC0504. 1.5V DC TL0512 IC0502-30, 31: 7V DC Replace IC0502. (C3V_SYS/C3V_SYS2): 3.2V DC Replace Q0508 or Q0509. TL0514 IC0501-30: 7V DC Replace IC0501. (C5V_CAM/LEN5V): 4.8V DC Replace Q0503. TL0515 (LEN3V): IC0502-27: 7V DC Replace IC0502.
Page 62 Troubleshooting > Trouble Diagnosis TL0522 (D5V): IC0501-32: 7V DC Replace IC0501. 4.8V DC Replace Q0505. *2: 12 V DC for DZ-GX20A; 15 V DC for other models. TL0523 (C15/12V): TL0525 (C8.5V): IC0502-26: 7V DC Replace IC0502. (*2) 12V or 15V DC 8.5V DC...
Page 63 Troubleshooting > Trouble Diagnosis Message "NO DISC" appears even if a normal disc is loaded. List of check points Lead wire Location on Circuit board soldered Symptom circuit board Set to service position (A). (side) or not R7003 MAN (B) Need not Does the voltage Replace the lock unit.
Page 64: Reassembly To Enable Service Position
4-6-2 Reassembly to enable service position Cautions 1) The DZ-GX20A incorporates a high-voltage flash unit. Use countermeasures to prevent electric shock, such as wearing gloves, and take great care during work. The flash unit Keeps its high voltage even if the power supply (AC adapter/charger, battery, etc.) is removed.
Page 65 Troubleshooting > Trouble Diagnosis 1) Connect the two flat cables of rear block to the MAN circuit board (Fig. 4-6-2). 2) Attach the MAN circuit board and rear block to the R block. 3) Use the two screws [E] to secure the MAN circuit board. 4) Connect the GSL-H/GSL-L/GSL-M and MAN circuit boards.
Page 66 3) Use the three screws [E] to secure the AEL circuit board. 4) With DZ-GX20A/MV780A, connect the SHE-H/SHE-M circuit board to AEL circuit board. The SHE-H/SHE-M circuit board is not mounted in DZ-MV730A. 5) Connect the flat cable of EVF unit to the AEL circuit board.
Page 67 Troubleshooting > Trouble Diagnosis 8) Connect the two flat cables on L block, and the connector of speaker cable, to the AEL circuit board (Fig. 4-6-5). R block (1) Insert. (2) Lock. 8) Connector of speaker L block cable Fig. 4-6-5 Setting to Service Position (B) [2/2] 4 - 42...
Page 68: Procedure For Removing Disc From Faulty Dvd Video Camera/Recorder
Laser light striking the eye may cause your eyesight to be lost: For safety, be sure to remove any power supply (AC adapter/charger, battery, etc.) from the DVD video camera/recorder before starting work. Information: 1) The DZ-GX20A is used for explanation in this section. Although the shapes of parts are slightly different for Lock slider each model, the procedure is identical for all models.
Page 69: System Resetting/Resetting Camera Functions
Troubleshooting > System Resetting/Resetting Camera Functions 4-8 System Resetting/Resetting Camera Functions The DVD video camera/recorder has two types of reset function: “System reset” and “Resetting camera functions”. The reset operation will return the various settings to the defaults when the DVD video camera/recorder was shipped form factory.
Page 70 MIC Filter On, Off Displayed only in the VIDEO mode. Flash Auto Auto, On, Off Displayed only in the CARD PHOTO mode. [DZ-GX20A only] Record Functions Setup VIDEO Mode FINE XTRA, FINE, STD Displayed only in the VIDEO mode. Quality FINE...
Page 71: System Reset Procedure
Troubleshooting > System Resetting/Resetting Camera Functions Camera System Default at Item function Setting range Remarks Memo reset factory reset LCD/EVF Setup Center Brightness Center Brightness Color Level Center EVF Display Auto Auto, On Initial Setup Beep On, Off Power Save On, Off Record LED On, Off...
Page 72: Procedure For Resetting Camera Functions
Troubleshooting > System Resetting/Resetting Camera Functions 4-8-3 Procedure for resetting camera functions 1) Connect a battery or AC adapter/charger to power the DVD video camera/recorder. Initial Setup 2) Set the power switch to “VIDEO”; loading disc is not Beep necessary at this time. For the following steps, operate Power Save Record LED DVD video camera/recorder while viewing the LCD...
Page 73: Special Functions
Troubleshooting > Special Functions 4-9 Special Functions Restriction: The information included in this section is exclusively for service personnel: Do not disclose it to persons other than service engineers. 4-9-1 Forced initialization of DVD-RAM (1) Application/Symptom Perform this procedure when Disc Navigation does not start normally and initialization is not possible with the procedure explained in instruction manual.
Page 74: Eeprom Data Backup And Write
Troubleshooting > Special Functions 4-9-2 EEPROM data backup and write (1) Application Perform this work whenever you replace the MAN circuit board on which the EEPROM is mounted. Create a backup file of the data in EEPROM to be replaced in a PC, and write the backup file to new EEPROM: Some adjustment items that are performed after replacement can be omitted.
Page 75 Troubleshooting > Special Functions Adjustment cover Flat-bladed screwdriver DC power cord To AC outlet DC power supply (5V/1A) Power cord Halcyon connector (No. TP14391) DZ-ACS2 Black Block (Pin 26) RS-232C Yellow cable DSP-R interface jig (No. 7099448) White (Pin 29) (Pin 28) Fig.
Page 76 Troubleshooting > Special Functions 3) Choose Original Data Backup on the DATA INITIALIZE DATA INITIALIZE MENU screen Data Initialize MENU screen. FILE MENU Note: Initial Data Write Do not choose “Initial Data Write” on the DATA INITIALIZE MENU. Refer to “6-4-1 Initial Data Write” after backup for Backup Data Write “Initial Data Write”.
Page 77 Troubleshooting > Special Functions ADJUST MENU screen (4) Write method MANUAL ADJUSTMENT PROGRAM for SERVICE STATION ×××× MODEL NAME: Restrictions: ADJUST MENU Never write data of any other product. DATA INITIALIZE VIDEO LEVEL The EEPROM data includes adjustment values, etc. that BURST LEVEL are peculiar to that product: It is different for each AUTO FUCUS...
Page 78: Disassembly And Reassembly
Disassembly and Reassembly Caution Since the DZ-GX20A incorporates high-voltage circuits, take electric charge prevention measures, such as wearing gloves, and take great care when performing work. 5-1 Items to Be Checked (1) Checking Disc Connect the AC adapter/charger or charged battery (power supply), and then press the DISC EJECT button to make sure that no disc is loaded.
Page 79 (20) circuit board Microphone AVJ-H/AVJ-L Front case circuit board (25) (27) FRT-H/FRT-L circuit board (26) Fig. 5-2-1 DZ-GX20A/MV730A Disassembly Flowchart DZ-MV780A Item Parts Name L case LCD case U Adjustment cover L cover LCD case B (22) (13) LCD unit...
Page 80: Disassembly
2) Numbers in the disassembly procedure diagrams are step numbers of disassembly procedures, and letters in brackets [ ] show the types of screw. (1) Lens Hood [DZ-GX20A/MV780A/MV730A] 1) Turn the lens hood (a) in the direction of the (a) Lens Hood arrow to remove it.
Page 81: Cushion F And Cushion R [Dz-Gx20A/ Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (3) Cushion F and Cushion R [DZ-GX20A/MV780A/MV730A] Information: 1) Replace cushion F and cushion R only if they are damaged or deteriorate. 2) Cushions F and R are attached to the R case that is a service part.
Page 82: L Block [Dz-Gx20A/Mv730A]
Disassembly and Reassembly > Disassembly (5) L Block [DZ-GX20A/MV730A] 1) Remove the three screws [A]. 4) Push 2) Remove the two screws [B]. side 3) Remove the two screws [C]. 4) While pushing the upper part of EVF unit on...
Page 83: L Block [Dz-Mv780A]
Disassembly and Reassembly > Disassembly (6) L Block [DZ-MV780A] 1) Remove the three screws [A]. 2) Remove the screw [B]. 3) Remove the two screws [C]. 4) While pushing the upper part of EVF unit on the L case, open the L block (a) in the 4) Push direction of the arrow, making sure that the side...
Page 84: Front Block [Dz-Gx20A/Mv730A]
DZ-GX-20A of DZ-MV730A of front right side front right side three screws [A]. 2) With DZ-GX20A, remove the screw [H]. 2) [C] With DZ-MV730A, remove the screw [C]. 2) [H] 3) Remove the FRT-H/FRT-L circuit board (c) from AEL (e) circuit board in the direction of the arrow.
Page 85: Lens Cover And Front Case [Dz-Mv780A]
Disassembly and Reassembly > Disassembly (8) Lens Cover and Front Case [DZ-MV780A] 1) Remove the screw [L]. 2) Remove the lens cover (a) in the direction of the arrow. Do not tilt the lens cover when removing the lens cover: Doing so could damage its claw. 3) Open the jack cover (c), and then remove the screw [A] and screw [L].
Page 86: Ael Circuit Board [Dz-Gx20A/Mv780A/Mv730A]
[DZ-GX20A/MV780A/MV730A] 1) Disconnect the flat cable. 2) With DZ-GX20A/MV780A, remove the SHE-H/SHE-M circuit board (c) from AEL circuit board in the direction of the arrow. The SHE-H/SHE-M circuit board is not mounted in DZ-MV730A. 3) Remove the three screws [E].
Page 87: Man Circuit Board And Rear Block [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (10) MAN Circuit Board and Rear Block [DZ-GX20A/MV780A/MV730A] 2) [A] Information: Before replacing the MAN circuit board, refer to “4-9-2 EEPROM data backup and write”. 1) Remove the hand strap (c) from R case (d).
Page 88: Rear Case And Evf Unit [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (11) Rear Case and EVF Unit [DZ-GX20A/MV780A/MV730A] 1) Pull out the EVF unit in the direction of the (a) Rear case 3) [A] arrow. (b) EVF unit 2) Remove the eye cup in the direction of the (c) Eye cup arrow.
Page 89: Accessory Shoe And She-H Circuit Board [Dz-Gx20A/Mv730A]
1) With DZ-GX20A, remove the SHE-H circuit board (b) from AEL circuit board (c) in the direction of the arrow. 2) With DZ-GX20A, remove the SHE-H circuit board from the circuit board block of flash unit (d) in the direction of the arrow.
Page 90: Camera Block [Dz-Gx20A/Mv730A]
[B] M1.7×2.5 2) [C] (Block) 1) Remove the screw [B]. [For DZ-GX20A] 2) With DZ-GX20A, remove the screw [C]. [C] M1.7×4 (Silver) Note: Take great care when handling the camera block: The camera block contains the lens unit, which is a precision component. Subjecting the lens unit to any impact, however slight, could result in a fault.
Page 91: Flash Unit [Dz-Gx20A]
Disassembly and Reassembly > Disassembly (17) Flash Unit [DZ-GX20A] Caution Since the flash unit incorporates high-voltage circuits, take electric charge prevention measures, such as wearing gloves, and take great care when performing work. Information: The flash unit is a component with the flash and circuit board blocks connected.
Page 92: Accessory Shoe And She-M Circuit Board [Dz-Mv780A]
(b) SHE-M circuit board [L] M1.7×3 (Silver) (c) R case Fig. 5-3-18 (19) R Cover [DZ-GX20A/MV780A/MV730A] (a) R cover 1) Remove the screw [F]. [F] M1.7×4 (Block) 2) Move the R cover (a) in the direction of the arrow to release the tab.
Page 93: R Case, Frame, Disc Drive Unit And
Disassembly and Reassembly > Disassembly (20) R Case, Frame, Disc Drive Unit and DRF-H/DRF-M/DRF-L Circuit Board [DZ-GX20A/MV780A/MV730A] 1) Disconnect the flat cable. 2) Remove the two screws [A]. 3) Remove the two screws [F], and then remove the R case (a).
Page 94: Lock Unit [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (21) Lock Unit [DZ-GX20A/MV780A/MV730A] 1) With the disc insertion block closed, remove the screw [F]. 2) Move the lock slider (b) in the direction of the arrow to open the disc insertion block. 3) Remove the four screws [B].
Page 95: Lcd Case U And Fulcrum Unit [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (23) LCD Case U and Fulcrum Unit [DZ-GX20A/MV780A/MV730A] 1) Turn the fulcrum unit (b) 90° in the direction of the arrow. 2) Remove the three screws [C]. 3) Release the six tabs and remove the LCD case U (a) in the direction of the arrow, taking care not to lose the MR sheet (c), which will be detached at this time.
Page 96: Lcd Case B [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (24) LCD Case B [DZ-GX20A/MV780A/MV730A] 1) Remove the LCD case B (a) in the direction of the arrow. Note: 1) Do not remove the LCD circuit board (b), mirror sheet (c), light guide plate (d), diffusion sheet (e), prism sheets (f) or LCD panel (g), monitor sheet (h) from the LCD frame (i).
Page 97: [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (25) AVJ-H/AVJ-M/AVJ-L Circuit Board [DZ-GX20A/MV780A/MV730A] 1) Remove the screw [F], taking care not to lose the ground plate (c), which will be detached [F] M1.7×4 (Black) at this time. 2) Remove the AVJ-H/AVJ-M/AVJ-L circuit board (a) from jack holder (b) in the direction of the arrow.
Page 98: Microphone And Front Case [Dz-Gx20A/Mv780A/Mv730A]
Disassembly and Reassembly > Disassembly (27) Microphone and Front Case [DZ-GX20A/MV780A/MV730A] 1) Remove the screw [F] and then remove the microphone (a) from the front case (b). (a) Microphone (b) Front case [F] M1.7×4 (Black) 1) [F] Fig. 5-3-27 5 - 21...
Page 99: Frame [Dz-Gx20A]
Disassembly and Reassembly > Disassembly (28) GSL-H Circuit Board, CCD Image Sensor, Lens Unit, Cushion, Crystal Filter, Lens Frame [DZ-GX20A] 1) Disconnect the flat cable. 2) Unsolder the 18 points at the CCD image sensor terminal on GSL-H circuit board (a).
Page 100: Lens Frame, Lens Unit, Cushion And Crystal Filter [Dz-Mv780A]
Disassembly and Reassembly > Disassembly (29) Lens Frame, Lens Unit, Cushion and Crystal Filter [DZ-MV780A] 1) Disconnect the flat cable. 2) Remove the screw [E]. 3) Turn the GSL-M circuit board (e) up in the direction of the arrow. 4) Remove the two screws [F] and then remove the lens frame (a). 5) Remove the two screws [J], and then remove the lens unit (b), cushion (c) and crystal filter (d).
Page 101: Lens Frame And Lens Unit [Dz-Mv730A]
Disassembly and Reassembly > Disassembly (31) Lens Frame and Lens Unit [DZ-MV730A] 1) Remove the two screws [F] and then remove the lens frame (a). 2) Disconnect the flat cable. 3) Remove the two screws [H], and then remove the lens unit (b), sensor frame (d), cushion (e) and crystal filter (f).
Page 102: Adjustment
3) Refer to the following table to check the reference data file name of the model to be adjusted. 4) Copy the file with the same name as the reference data file name checked in step 3) in refdata folder to map05w folder. Model Name of reference data file DZ-GX20A gx20a.dat DZ-MV780A m780a.dat DZ-MV730A m730a.dat...
Page 103: List Of Jigs And Tools Used When Creating Reference Data
Note:Create the data using the adjustment data Parts No. TP14391 downloaded from Internet. If downloading is not possible, call 1-800-HITACHI to find out where to send the product for repair. Personal computer (PC) Computer on which any of the following OS operates and which has a...
Page 104: Reference Data
Adjustment > Creating Reference Data 6-1-2 Power Supply and Materials for Creating Reference Data 1) DVD video camera/recorder that is the same model as the one to be adjusted and whose camera block is operating normally. Note: It is recommended that you use a brand-new unit of the same model when creating the reference data.
Page 105 Adjustment > Creating Reference Data Note: Always connect the Halcyon connector before connecting the DC power cord to the DVD video camera/recorder : Connecting the Halcyon connector after powering the DVD video camera/recorder could cause a fault. Light box Color Monitor To VIDEO IN RESET button...
Page 106: Reference Data
MIC Filter Initial Setup Flash Auto (*1) Beep Power Save Recording Functions Setup VIDEO Mode FINE Record LED Quality FINE Language English 16:9 Demo Mode Input Source CAMERA *1: DZ-GX20A only PHOTO Input Field Self Timer OSD Output 6 - 5...
Page 107: Copying Or Deleting Adjustment Program
Adjustment > Creating Reference Data 6-1-5 Copying or Deleting Adjustment Program Information: The program for creating reference data is included in the adjustment program. (1) Copy 1) Start the PC. 2) Start Explorer and create a new folder in HDD of PC. The name “map05w” is recommended for the folder: If a folder with the same name exists, give the folder a similar name that is easily understandable.
Page 108 EXIT POWER OR CONNECTION ERROR dialog ERROR MAY OCCURE ON CABLE OR JIG OR CAMCORDER. Copyright (C) HITACHI, Ltd 2003 POWER FAILURE OR CONNECTION ERROR! COM PORT ERROR dialog ERROR COM PORT ERROR When the power or connection error dialog appears: A connection is incorrect or power is not turned on.
Page 109 Adjustment > Creating Reference Data 6) Choose the radio button of corresponding model name in MODEL SELECT screen. MODEL SELECT screen. MANUAL ADJUSTMENT PROGRAM for SERVICE STATION 7) Click the ENTER button in MODEL SELECT screen, MODEL SELECT and then proceed with the SETUP MENU screen. ×...
Page 110 Adjustment > Creating Reference Data (2) Termination 1) Click the RETURN button on MENU screen of program to return to the MODEL SELECT screen. 2) Click the EXIT button on the MODEL SELECT screen. Information: If the PC does not accept any operation during work, or the reference data creating program does not work, perform the following procedure: 1) Set the power switch of reference data creating device to “OFF”.
Page 111: Creating Reference Data
Adjustment > Creating Reference Data 6-1-7 Creating Reference Data Start the setup program. For subsequent operation, operate the PC mouse while watching the PC monitor screen. Information: SETUP MENU screen. It takes approx. 20 minutes to create reference data. MANUAL ADJUSTMENT PROGRAM for SERVICE STATION The following shows the times required for each item: Matrix: Approx.
Page 112 Adjustment > Creating Reference Data 8) Choose WHITE BALANCE ABS on the SETUP MENU SETUP MENU screen. screen. MANUAL ADJUSTMENT PROGRAM for SERVICE STATION 9) Repeat steps 2)-5). SETUP MENU 10) Click the RETURN button on SETUP MENU screen. Matrix 11) The ALL SETUP FINISH dialog will appear: Click the White Balance OK button to complete the creation of reference data.
Page 113: Setups For Adjustment
Adjustment > Setups for Adjustment 6-2 Setups for Adjustment 6-2-1 Checking Reference Data Before starting adjustment, check whether it will be necessary to create the reference data or not, referring to the flowchart below: Creation of reference data needed or not Have you ever created reference data for this model?
Page 114: List Of Jigs And Tools For Adjustment
Adjustment > Setups for Adjustment 6-2-2 List of Jigs and Tools for Adjustment Same as when creating reference data: Refer to “6-1-1 List of jigs and tools when creating reference data” for details. 1) Personal computer 2) Adjustment floppy disc 3) Halcyon connector 4) C12 light balance filter 5) DSP-R Jig...
Page 115 Adjustment > Setups for Adjustment (2) Setting and disassembly of DVD video camera/recorder 1) Open the LCD monitor and insert a fine-tipped flat-bladed screwdriver into the groove in adjustment cover, and remove the cover from L case in the direction of the arrow: Be very careful not to scratch the cover or L case with screwdriver.
Page 116: Settings For Adjustment
MIC Filter Initial Setup Flash Auto (*1) Beep Power Save Recording Functions Setup VIDEO Mode FINE Record LED Quality FINE Language English 16:9 Demo Mode Input Source CAMERA *1: DZ-GX20A only PHOTO Input Field Self Timer OSD Output 6 - 15...
Page 117 Adjustment > Setups for Adjustment (2) Setting test equipment The names of switches, etc. of test equipment may vary depending on the manufacturer and model. Some switches in addition to those shown below may have to be set: See the instruction manual of test equipment for details.
Page 118: Starting And Terminating Adjustment Program
EXIT 5) Click the OK button on the COMMUNICATION PORT SETTING screen, and then proceed with the MODEL SELECT screen. Copyright (C) HITACHI, Ltd 2003 Note: POWER OR CONNECTION ERROR If the dialogs on right appear, perform the following dialog...
Page 119 Adjustment > Setups for Adjustment MODEL SELECT screen. Information: MANUAL ADJUSTMENT PROGRAM for SERVICE STATION When communications between the PC and DVD video camera/recorder are normal during adjustment, the word MODEL SELECT “CONNECTION” in status bar (bottom left) of each screen ×...
Page 120 Adjustment > Setups for Adjustment (2) Termination 1) Click the RETURN button on MENU screen of adjustment program to return to the MODEL SELECT screen. 2) Click the EXIT button on the MODEL SELECT screen. Information: If the PC does not accept any operation during work, or the reference data creating program does not work, perform the following procedure: 1) Set the power switch of reference data creating device to “OFF”.
Page 121: List Of Adjustment Items
Original Data Backup VIDEO LEVEL EXECUTE RETURN CONNECTION BURST LEVEL AUTO FOCUS AUTO IRIS CONTROL SAMPLING PULSE LINEARITY [DZ-GX20A only] MATRIX CHROMA GAIN SPOT NOISE MANUAL ADJUSTMENT PROGRAM for SERVICE STATION LCD PLL LCD ADJUSTMENT MENU LCD ADJUSTMENT MENU LCD CONTRAST-1 CONTRAST...
Page 122: Replacing Major Components
DVD video camera/ recorder not being turned on, etc. *3: DZ-GX20A only. *4: The following three items cannot be performed singly. Be sure to perform these adjustments as a set with the three items, and in the order stated: LCD contrast –...
Page 123 LCD Contrast-2 (*4) LCD White Balance *3: DZ-GX20A only. *4: The following three items cannot be performed singly. Be sure to perform these adjustments as a set with the three items, and in the order stated: LCD contrast – 1 LCD bright LCD contrast –...
Page 124: Purpose Of Adjustments And Incompleted Phenomenon
Adjustment > List of Adjustment Items 6-3-3 Purpose of Adjustments and Incompleted Phenomenon Item Purpose Incompleted Phenomenon Initial Data Write To write initial data to EEPROM in ------------ which adjustment data has been stored Video Level To set the video output level. The picture becomes dark or whitish.
Page 125: Adjustment Procedure
Adjustment > Adjustment Procedure 6-4 Adjustment Procedure Start the adjustment program referring to “6-2-6 Starting and Terminating Adjustment Program”. For the subsequent operation, operate the PC mouse while watching the PC monitor screen. Information: 1) Display ×××× on subsequent PC screen shows the model name. 2) The numbers on PC screens show the operational procedure.
Page 126: Video Level
Adjustment > Adjustment Procedure ADJUST MENU screen 6-4-2 Video Level MANUAL ADJUSTMENT PROGRAM for SERVICE STATION ×××× Preparations: MODEL NAME: 1) Connect the oscilloscope CH1 to video out. ADJUST MENU DATA INITIALIZE 2) Switch the oscilloscope V-MODE to “CH1” and VIDEO LEVEL TRIGGER SOURCE to “CH1”.
Page 127: Burst Level
Adjustment > Adjustment Procedure ADJUST MENU screen 6-4-3 Burst Level MANUAL ADJUSTMENT PROGRAM for SERVICE STATION ×××× Preparations: MODEL NAME: 1) Connect the oscilloscope CH1 to video out. ADJUST MENU DATA INITIALIZE 2) Switch the oscilloscope V-MODE to “CH1” and VIDEO LEVEL TRIGGER SOURCE to “CH1”.
Page 128: Autofocus
Adjustment > Adjustment Procedure ADJUST MENU screen 6-4-4 Autofocus MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparations: ×××× MODEL NAME: 1) Use the backfocus chart vertically (portrait mode) as ADJUST MENU shown in Fig. 6-4-3. DATA INITIALIZE VIDEO LEVEL 2) Point at backfocus chart 1500mm ± 5 mm away from the BURST LEVEL AUTO FUCUS lens surface: Measure the distance precisely.
Page 129: Auto Iris Control
Adjustment > Adjustment Procedure 6-4-5 Auto Iris Control ADJUST MENU screen MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparation: ×××× MODEL NAME: Set zoom to wide-angle end, and point at light box without ADJUST MENU chart, filling the screen. DATA INITIALIZE VIDEO LEVEL Procedure: BURST LEVEL...
Page 130: Sampling Pulse
Adjustment > Adjustment Procedure ADJUST MENU screen 6-4-6 Sampling Pulse MANUAL ADJUSTMENT PROGRAM for SERVICE STATION ×××× Note: MODEL NAME: ADJUST MENU Start this adjustment after the circuit operation is DATA INITIALIZE stabilized, e.g., after leaving the DVD video camera/ VIDEO LEVEL recorder for at least one hour at normal temperature, and BURST LEVEL...
Page 131: Linearity
Adjustment > Adjustment Procedure 6-4-7 Linearity ADJUST MENU screen [DZ-GX20A only] MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparation: ×××× MODEL NAME: Set zoom to wide-angle end, and point at light box without ADJUST MENU chart, filling the screen. DATA INITIALIZE...
Page 132: Matrix
Adjustment > Adjustment Procedure 6-4-8 Matrix ADJUST MENU screen MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparation: ×××× MODEL NAME: 1) Point at light box without chart, filling the screen. ADJUST MENU 2) Prepare the C12 light balancing filter (step-up rings): DATA INITIALIZE VIDEO LEVEL Attach it during adjustment.
Page 133: Chroma Gain
Adjustment > Adjustment Procedure 6-4-9 Chroma Gain Preparation: 1) Point at light box without chart, filling the screen. 2) Prepare the color bar chart: Use it during adjustment. Procedure: 1) Press the MENU button on DVD video camera/recorder, and buttons to specify “White Bal.: Set”...
Page 134 Auto”. Table 6-4-1 Value of Red Level/Vector Model When using a vectorscope When using an oscilloscope DZ-GX20A A = 240 % ± 5 % B = 690mV ± 20 mVp-p DZ-MV780A A = 240 % ± 5 % B = 690mV ± 20 mVp-p...
Page 135: Spot Noise
Adjustment > Adjustment Procedure 6-4-10 Spot Noise Information: 1) The SPOT NOISE adjustment compensates for bright points that appear on the screen, and these are caused by a defect in pixel of CCD image sensor that may occur when DVD video camera/ recorder is used under particular conditions or for a long time.
Page 136: Lcd
Adjustment > Adjustment Procedure 6-4-11 Note: 1) Perform LCD only after replacing the MAN circuit board, LCD circuit board or LCD unit, or executing “Initial Data Write”. 2) Neither light box nor chart is needed for LCD adjustment. Before performing any adjustments for LCD, be sure to shift the DVD video camera/recorder to the test mode using the procedure below, and then display the LCD ADJUSTMENT MENU.
Page 137 Adjustment > Adjustment Procedure LCD ADJUSTMENT MENU screen (1) LCD PLL MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparation: Connect the frequency counter to “LCD-HDO (pin 11)” of LCD ADJUSTMENT MENU Halcyon connector. LCD ADJUSTMENT MENU Procedure: 1) Choose PLL on the LCD ADJUSTMENT MENU screen. CONTRAST 2) Click the EXECUTE button on LCD ADJUSTMENT MENU screen to proceed with the PLL ADJUSTMENT...
Page 138 Adjustment > Adjustment Procedure LCD ADJUSTMENT MENU screen (2) LCD Contrast-1 MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Note: Be sure to adjust LCD brightness and LCD contrast-2 LCD ADJUSTMENT MENU after completing LCD contrast-1 adjustment. LCD ADJUSTMENT MENU Preparations: CONTRAST 1) Connect the oscilloscope CH2 to “LCD-G (pin 13)”...
Page 139 Adjustment > Adjustment Procedure LCD ADJUSTMENT MENU screen (3) LCD Brightness MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparations: 1) Connect the oscilloscope CH2 to “LCD-G (pin 13)” of LCD ADJUSTMENT MENU Halcyon connector. LCD ADJUSTMENT MENU 2) Switch the oscilloscope V-MODE to “CH2”: Leave the TRRIGER SOURCE in “CH1”...
Page 140 Adjustment > Adjustment Procedure LCD ADJUSTMENT MENU screen (4) LCD Contrast-2 MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparations: 1) Connect the oscilloscope CH2 to “LCD-G (pin 13)” of LCD ADJUSTMENT MENU Halcyon connector. LCD ADJUSTMENT MENU 2) Switch the oscilloscope V-MODE to “CH2”: Leave the TRRIGER SOURCE in “CH1”...
Page 141 Adjustment > Adjustment Procedure LCD ADJUSTMENT MENU screen (5) LCD White Balance MANUAL ADJUSTMENT PROGRAM for SERVICE STATION Preparations: 1) Connect the oscilloscope CH1 to “LCD-R (pin 14)” of LCD ADJUSTMENT MENU Halcyon connector. LCD ADJUSTMENT MENU 2) Connect the oscilloscope CH2 to “LCD-G (pin 13)” of Halcyon connector.
Page 142 Adjustment > Adjustment Procedure 7) Connect the oscilloscope CH1 to “LCD-B (pin 12)” of SUB CONTRAST BLUE ADJUSTMENT screen. Halcyon connector. MANUAL ADJUSTMENT PROGRAM for SERVICE STATION 8) Use the same procedure as in step 3) to equalize levels a and b of the waveform.
Page 143: Exploded View
Exploded View Note: Components without any numbers in exploded 7-1 Exploded Views views had not been assigned as service parts as of the date of issue of this manual. 7-1-1 DZ-GX20A/MV730A Main For GX20A For MV730A For GX20A DRF-H/DRF-L Circuit Board...
Page 144: Dz-Gx20A Camera
7-1-2 DZ-GX20A Camera GSL-H Circuit Board [Component Replacement] 7-1-3 DZ-MV730A Camera GSL-L Circuit Board [Component Replacement] 7 - 2...
Page 145: Dz-Mv780A
7-1-4 DZ-MV780A DRF-M Circuit Board [Component Replacement] SHE-M Circuit Board [Component Replacement] MAN Circuit Board [Component Replacement] Disc Drive Unit [Unit Replacement] GSL-M Circuit Board [Component AEL Circuit Board Replacement] [Component Replacement] FRT-M Circuit Board [Component Replacement] AVJ-M Circuit Board [Component Replacement] 7 - 3...
Page 146: S Schematic & Wiring Diagrams
Schematic & Wiring Diagrams UNIT S-1 DZ-GX20A/MV730A Wiring Diagram 2PIN 18PIN SPEAKER [For DZ-GX20A] 20PIN 6PIN L COVER PG0151 (OPERATION SWITCH) PG3701 MICROPHONE PG6003 6PIN PG6001 PG8004 PG8001 10PIN [DZ-GX20A] PG1801 PG0152 PG8011 PG1802 10PIN FLASH UNIT PG8003 PG8061 CARD SLOT...
Page 147: Dz-Mv780A Wiring Diagram
S-2 DZ-MV780A Wiring Diagram UNIT 2PIN 18PIN SPEAKER 20PIN 6PIN L COVER (OPERATION SWITCH) PG0151 PG3701 MICROPHONE PG6003 6PIN PG6001 PG8004 PG8001 10PIN PG1801 PG8011 PG1802 10PIN FRT-M PG8003 PG8061 CARD SLOT AVJ-M 25PIN UNIT PG8002 FOR ADJUSTMENT 20PIN PG1901 SHE-M PG6002 CN0151...
Page 148: Gsl-H
S-3 GSL-H (MI) (MI) IMEGE SENSOR (CM JPN-MA) (5H) LENSE UNIT CAMERA DSP [MAN] (CM JPN-MB) PG2001 GYRO DET CODE PART NAME CM JPN-MA ENC-03MA-05 (LF) CM JPN-MB ENC-03MB-05 2SC5383-T11-1F 2SC4627J XP4501 MA132K GSL-H S - 3...
Page 149: Gsl-M
S-4 GSL-M (MI) (64) IMEGE SENSOR (CM JPN-MA) LENSE UNIT (5H) CAMERA DSP [MAN] (CM JPN-MB) PG2001 GYRO DET (LF) CODE PART NAME CM JPN-MA ENC-03MA-05 CM JPN-MB ENC-03MB-05 2SC5383-T11-1F 2SC4627J 2SC4626J XP4501 DTC114YE GSL-M MA132K S - 4...
Page 150: Gsl-L
S-5 GSL-L C1001B IMEGE SENSOR (MI) LENSE (CM JPN-MA) UNIT (5H) CAMERA DSP [MAN] (CM JPN-MB) PG2001 (LF) GYRO DET CODE PART NAME CM JPN-MA ENC-03MA-05 CM JPN-MB ENC-03MB-05 2SC5383-T11-1F 2SC4626J XP4501 MA132K GSL-L S - 5...
Page 151: Frt-H/Frt-M/Frt-L
S-6 FRT-H/FRT-M/FRT-L S-7 AVJ-H/AVJ-M/AVJ-L MICROPHONE EXTERNAL MICROPHONE JACK PG6001 JK1901 AV INPUT/ OUTPUT JACK REMOTE CONT. RECEIVER PG6002 RECORDING INDICATOR CODE PART NAME 2SC5383-T11 PC CONNECTOION 2SD2345JSL (P9) TERMINAL DAP222 (1ZS) (LF) Parts Difference Table Synbol No. Location GX20A/MV780A MV730A BL1901 FLC181Z16SMMZ Not Provided...
Page 152: She-H
S-8 SHE-H S-9 SHE-M CN0153 SHASSIS FLASH UNIT ACCESSORY ACCESSORY SHOE SHOE PG8004 PG8004 SHE-H SHE-M S - 7...
Page 153: Drf-H/Drf-M/Drf-L
S-10 DRF-H/DRF-M/DRF-L PG2301 PG2302 PLUG [MAN] PG7002 PG9501 DRF-H DRF-M DRF-L S - 8...
Page 154: Ael
S-11 AEL EVF UNIT SPEAKER LCD UNIT CARD INSERTION BLOCK 3.2 3.2 Note:Components marked are different between DZ-GX20A, DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference L CASE Table" for the different components. Parts Difference Table Synbol No. Location GX20A/MV780A MV730A...
Page 155: Camera Dsp [Man
Note:Components marked are different between DZ-GX20A, DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference S-12 CAMERA DSP [MAN] Table" for the different components. LENS DRIVE Parts Difference Table CODEC 1A-4A Synbol No. Location GX20A MV780A MV730A 1G-9G C2001 1000p Not Provided...
Page 156: Codec [Man
S-13 CODEC [MAN] RESET PULSEGEN. 3.3V REG (2/2) 3H-5H REAL TIME BATTERY CLOCK DET SW RESET LENS DRIVE PULSEGEN. BLM11P300SPT PLUG 6D-14D FLASH MEMORY FLASH CS SIGNAL GEN C0559 2.7k BLM15BD102SN1D 6H-10H (1/2) CODE PART NAME CODEC [MAN] HVC375B PLUG CAMERA DSP PLUG 51D-75D...
Page 157: Reg [Man
(MU) C-7V REG -7.5 TRANS (KP) REG [MAN] Note:Components marked * are different between DZ-GX20A, CODE PART NAME One voltage : PB or REC mode. DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference MCH3310-TL Two voltages : PB and (REC) mode.
Page 158: Plug [Man
S-15 PLUG [MAN] BLM11P300SPT 8J-15J BLM11P300SPT REAR CASE (N5) CAMERA DSP 1C-17C (N5) CODEC 1D-10D,76D-85D BLM11P300SPT BLM11P300SPT DRF-H/DRF-M/DRF-L PG2301 1J-7J PG8001 CODE PART NAME RT1N144U-T11-1 One voltage : PB or REC mode. Two voltages : PB and (REC) mode. PLUG [MAN] CODEC 11D-75D S - 13...
Page 159: Lens Drive [Man
S-16 LENS DRIVE [MAN] Note:Components marked are different between DZ-GX20A, DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference Table" for the different components. Parts Difference Table Synbol No. Location GX20A MV780A MV730A C1314 100p 100p Not Provided C1316 0.068 0.068...
Page 160 S-17 IC Block Diagrams-1/2 IC0503, IC1302, IC0504 IC0501 IC0502 IC1306 TK11215CMC MB39A115 MB39A110 NJM13404R-TE1 V IN V OUT <CH1> <CH1> -INE1 -INE1 ERROR ERROR VREF VREF OVER AMP1 AMP1 35 VCCO 34 VCCO-P CONT. 1µA CURRENT COMP.1 DRIVE1-1 1µA COMP.1 DRIVE1-1 PROTECT OUT1-1...
Page 161 S-18 IC Block Diagrams-2/2 IC2002, IC4006 IC1307 IC2003 IC4009 RX-5411LD NJM3414AV-TE1 HD49343 S-814A33AMC RESET V IN V OUT VDDL 12bit DETECTOR DIFFERENCE D0-D11 CLAMP INTERRUPTS 14 PBLK CLK,CE,DI,DO INTERFACE ADCK ON/OFF ON/OFF TIMING IC1308 GENERATOR CHARGE SERIAL SHORT REAL TIME MB88347PFV SDATA CIRCUIT...
Page 162: Gsl-H
CIRCUIT BOARD DIAGRAMS C-1 GSL-H C-2 GSL-M C-3 GSL-L GSL-H -SIDE A- GSL-M -SIDE A- GSL-L -SIDE A- PG1301B 4E E 2D D 2 2 2 2 D 4 4 D IC1001A IC1001 4C C 4C C GSL-H -SIDE B- GSL-M -SIDE B- GSL-L -SIDE B- IC1001B...
Page 163: Frt-H/Frt-M/Frt-L
AVJ-M [PATTERN No.JD1195-4] AVJ-L [PATTERN No.JD1196-5] Information: Parts Difference Table Note:Components marked * are different between DZ-GX20A, The AVJ-H, DRF-H, FRT-H and GSL-H circuit boards with suffix Synbol No. Location GX20A/MV780A MV730A DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference...
Page 164: She-H
C-7 SHE-H C-8 SHE-M SHE-H SHE-M -SIDE A- SHE-M -SIDE B- CN0153 CN0151 CN0151 [PATTERN No.JD1189-6] [PATTERN No.JD1195-4] C - 3...
Page 165: Ael [Pattern No. Ja2296-7
BA7001 2D D 5 5 5 5 D D D D 7 7 7 Note:Components marked * are different between DZ-GX20A, DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference Table" for the different components. Parts Difference Table Synbol No. Location GX20A/MV780A...
Page 166 BA7001 2D D 5D D 5D D D D 7 7 7 Note:Components marked * are different between DZ-GX20A, DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference Table" for the different components. Parts Difference Table Synbol No. Location GX20A/MV780A MV730A...
Page 167: Man
Parts Difference Table C-11 MAN Note:Components marked * are different between DZ-GX20A, Synbol No. Location GX20A MV780A MV730A DZ-MV780A and DZ-MV730A: Refer to the "Parts Difference C1314 100p 100p Not Provided Table" for the different components. C1316 0.068 0.068 560p...
Page 168: B Block Diagrams
Block Diagrams B-1 Video/Audio Signal Process [For DZ-GX20A/MV780A] PG7001 PG8001 EXT_CIN EXT_CIN AVJ-H/AVJ-M/AVJ-L 1-9, IC2003 IC6301 Q6028 AD2[0-11] [For DZ-GX20A] 34-36 AV AMP Q2000 PG6002 PG1901 Q1002 Y_OUT Y_OUT IC1001 S(Y) 13-16, 18 PG1001 PG2001 S(C) Q2001 AV INPUT/ 29-31...
Page 169: Power-1
B-2 Power-1 [DZ-GX20A] IC4009 PG0501 IC2008 F0501 PG7004 VREG3V 3.3V C5V_CAM 1, 3 ACCESS/PC IC4012 INDICATOR +B_SYS RESET BATTERY L0501 PULSE GEN. TERMINAL ZOOM LEVER 8-12 F0502 IC4013 IC2001 C3V_CAM +B_SYS C3V_CAM/C3V RESET SENSOR PULSE GEN. H-DRIVER Q0501, IC0501 TL0509 (C1.2V)
Page 170: Power-2
B-3 Power-2 1, 82-88, IC9101 IC9001 90, 91, PG9501 PG9101 PG9001 L9101 VC1(2.1V) 17, 75 99, 100 41, 42 ANALOG 12, 27, 57, 27, 28, FRONT L9102 L9516 70, 79, 89 13, 80 28 28 VC2(2.5V) 43, 44 3.3V LASER 3.3VA Q9106, Q9107...
Page 171: Parts List
TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note JP43151 PWB ASSY AEL For GX20A JP43151 PWB ASSY AEL For MV780A JP43157 PWB ASSY AEL For MV730A JP43231 PWB ASSY SHE-H For GX20A JP43601...
Page 172 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note QD40632 CASE,FRONT For GX20A QD40642 CASE,FRONT For MV780A QD40654 CASE,FRONT For MV730A GH10431 MICROPHONE For GX20A/MV780A GH10432 MICROPHONE For MV780A QX18181 COVER,LENS For GX20A QX17971...
Page 173 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note QD40871 CASE,LCD(B) For GX20A/MV730A QD40871 CASE,LCD(B) For MV780A QD41321 CASE,LCD(U) For GX20A QD40966 CASE,LCD(U) For MV780A QD40962 CASE,LCD(U) For MV730A NA35431 PLATE(J) For GX20A/MV730A NA35431...
Page 174 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note BL5004 BM10682R COIL For No. JA2296-7 BL5004 BM10682R COIL For No. JA2296-8 BL6001L BM10697R CORE For No. JA2296-7 BL6001L BM10697R CORE For No. JA2296-8 BL6001R BM10697R CORE For No.
Page 175 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C1006 893222 CERAMIC CHIP 0.01UF+-10% 50V C1006A AA01141R CHIP CAPACITOR 0.1UF+-10% 16V C1006B 893213 CERAMIC CHIP 2200PF+-10% 50V C1007 893208 CERAMIC CHIP 1000PF+-10% 50V C1007B...
Page 176 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C1801 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V C1803 AA01126R CERAMIC CAPACITOR 0.22UF+-10% 10V C1804 AA01126R CERAMIC CAPACITOR 0.22UF+-10% 10V C3705 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V For No. JA2296-7 C3705 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V...
Page 177 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C6002L 893324 CERAMIC CHIP 2200PF+-10% 50V For No. JA2296-7 C6002L 893324 CERAMIC CHIP 2200PF+-10% 50V For No. JA2296-8 C6002R 893324 CERAMIC CHIP 2200PF+-10% 50V For No. JA2296-7...
Page 178 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C6105L AA01143R CHIP CAPACITOR 0.22UF 16V For No. JA2296-8 C6105R AA01143R CHIP CAPACITOR 0.22UF 16V For No. JA2296-7 C6105R AA01143R CHIP CAPACITOR 0.22UF 16V For No. JA2296-8 C6106 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V...
Page 179 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C6305 AA10872R CHIP CAPACITOR 0.1UF+-10% 10V For No. JA2296-7 C6305 AA10872R CHIP CAPACITOR 0.1UF+-10% 10V For No. JA2296-8 C6306 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V For No. JA2296-7 C6306 AA00968R CERAMIC CAPACITOR 10UF+-20% 6.3V...
Page 180 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note C6333 893333 CERAMIC CHIP 0.01UF+-10% 16V For No. JA2296-8 C6334 AA10872R CHIP CAPACITOR 0.1UF+-10% 10V For No. JA2296-7 C6334 AA10872R CHIP CAPACITOR 0.1UF+-10% 10V For No. JA2296-8 C8001 AA01111R CERAMIC CHIP 1UF 6.3V...
Page 181 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note F0503 FM10601R FUSE F0504 FM10601R FUSE IC0501 CK48811R IC MB39A115 IC0502 CK48061R IC MB39A110 IC0503 CK48821R IC TK11251CMC IC0504 CK48821R IC TK11251CMC IC0505 CK41503R IC TK72175CM...
Page 182 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note IC4012 CK49771R IC S-80952CNNB IC4013 CK49771R IC S-80952CNNB IC6021 CK60151R IC MM1503XNRE-LF For No. JA2296-7 IC6021 CK60151R IC MM1503XNRE-LF For No. JA2296-8 IC6101 CK49891R IC NJM2112V-TE1Z For No.
Page 183 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note L6021 BA10149R COIL 33UH For No. JA2296-8 L6101 773004 COIL 100UH For No. JA2296-7 L6101 773004 COIL 100UH For No. JA2296-8 L6301 BA10584R COIL 100UH For No.
Page 184 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note PG7004 EA15603R PLUG PG8001 EA15001R PLUG For No. JA2296-7 PG8001 EA15001R PLUG For No. JA2296-8 PG8002 EA15091R PLUG For No. JA2296-7 PG8002 EA15091R PLUG For No. JA2296-8...
Page 185 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note Q6002L CA14121R TRANSISTOR 2SA1980EF-AY For No. JA2296-7 Q6002L CA14121R TRANSISTOR 2SA1980EF-AY For No. JA2296-8 Q6002R CA14121R TRANSISTOR 2SA1980EF-AY For No. JA2296-7 Q6002R CA14121R TRANSISTOR 2SA1980EF-AY For No.
Page 186 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note Q7002 CA12891R TRANSISTOR RT1N144U-T11-1 Q8001 CA14081R TRANSISTOR RTR020P02TL For No. JA2296-7 Q8001 CA14081R TRANSISTOR RTR020P02TL For No. JA2296-8 Q8002 CA12891R TRANSISTOR RT1N144U-T11-1 For No. JA2296-7...
Page 187 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R1409B AQ00228R CHIP RESISTOR 20KOHM+-1% 1/16W R1410 AQ00228R CHIP RESISTOR 20KOHM+-1% 1/16W R1410A AQ00228R CHIP RESISTOR 20KOHM+-1% 1/16W R1410B AQ00228R CHIP RESISTOR 20KOHM+-1% 1/16W R1411...
Page 188 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R3716 790181 CHIP RESISTOR 10 OHM+-5% 1/16W For No. JA2296-7 R3716 790181 CHIP RESISTOR 10 OHM+-5% 1/16W For No. JA2296-8 R3717 790181 CHIP RESISTOR 10 OHM+-5% 1/16W For No.
Page 189 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R6021 790207 CHIP RESISTOR 1KOHM+-5% 1/16W For No. JA2296-7 R6021 790207 CHIP RESISTOR 1KOHM+-5% 1/16W For No. JA2296-8 R6025 790221 CHIP RESISTOR 10KOHM+-5% 1/16W For No. JA2296-7...
Page 190 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R6103R 790225 CHIP RESISTOR 22KOHM+-5% 1/16W For No. JA2296-8 R6104L 790236 CHIP RESISTOR 150KOHM+-5% 1/16W For No. JA2296-7 R6104L 790236 CHIP RESISTOR 150KOHM+-5% 1/16W For No. JA2296-8...
Page 191 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R6117L AQ10712R CHIP RESISTOR 10KOHM+-0.5% 1/16W For No. JA2296-7 R6117L AQ10712R CHIP RESISTOR 10KOHM+-0.5% 1/16W For No. JA2296-8 R6117R AQ10712R CHIP RESISTOR 10KOHM+-0.5% 1/16W For No. JA2296-7 R6117R AQ10712R CHIP RESISTOR 10KOHM+-0.5% 1/16W...
Page 192 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R6318 790202 CHIP RESISTOR 390 OHM+-5% 1/16W For No. JA2296-8 R6319 790211 CHIP RESISTOR 1.8KOHM+-5% 1/16W For No. JA2296-7 R6319 790211 CHIP RESISTOR 1.8KOHM+-5% 1/16W For No.
Page 193 TK 0520E DZ-GX20A / DZ-MV730A / DZ-MV780A Parts List Symbol Caution Part No. Description Note R8053 790181 CHIP RESISTOR 10 OHM+-5% 1/16W For No. JA2296-7 R8053 790181 CHIP RESISTOR 10 OHM+-5% 1/16W For No. JA2296-8 R8061 790185 CHIP RESISTOR 22 OHM+-5% 1/16W For No.

This manual is also suitable for:

Dz-mv780a Dz-mv730a

Hitachi DZ-GX20A Service Manual

1 Safety Precaution for Repair

2 General Description

3 Description of Operation

4 Troubleshooting

5 Disassembly and Reassembly

6 Adjustment

7 Exploded View

S Schematic & Wiring Diagrams

B Block Diagrams

Quick Links

Troubleshooting

Related Manuals for Hitachi DZ-GX20A

Summary of Contents for Hitachi DZ-GX20A

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Table of Contents